AKModel/templates/admin/AKModel/event_wizard/import.html

@@ -8,11 +8,14 @@
 
 {% block title %}{% trans "New event wizard" %}: {{ wizard_step_text }}{% endblock %}
 
+{% block extrahead %}
+    {{ block.super }}
+    {{ form.media }}
+{% endblock %}
+
 {% block content %}
     {% include "admin/AKModel/event_wizard/wizard_steps.html" %}
 
-    {{ form.media }}
-
     <form method="post">{% csrf_token %}
         {% bootstrap_form form %}
 

AKModel/templates/admin/AKModel/event_wizard/settings.html

@@ -8,11 +8,14 @@
 
 {% block title %}{% trans "New event wizard" %}: {{ wizard_step_text }}{% endblock %}
 
+{% block extrahead %}
+    {{ block.super }}
+    {{ form.media }}
+{% endblock %}
+
 {% block content %}
     {% include "admin/AKModel/event_wizard/wizard_steps.html" %}
 
-    {{ form.media }}
-
     {% timezone timezone %}
 
     <form method="post">{% csrf_token %}

AKModel/templates/admin/AKModel/event_wizard/start.html

@@ -7,6 +7,11 @@
 
 {% block title %}{% trans "New event wizard" %}: {{ wizard_step_text }}{% endblock %}
 
+{% block extrahead %}
+    {{ block.super }}
+    {{ form.media }}
+{% endblock %}
+
 {% block content %}
     {% include "admin/AKModel/event_wizard/wizard_steps.html" %}
 

AKModel/templates/admin/AKModel/import_json.html

+{% extends "admin/base_site.html" %}
+{% load tags_AKModel %}
+
+{% load i18n %}
+{% load django_bootstrap5 %}
+{% load fontawesome_6 %}
+
+
+{% block title %}{{event}}: {{ title }}{% endblock %}
+
+{% block content %}
+    {% block action_preview %}
+        <p>
+            {{ preview|linebreaksbr }}
+        </p>
+    {% endblock %}
+
+    <form enctype="multipart/form-data" method="post">{% csrf_token %}
+        {% bootstrap_form form %}
+
+        <div class="float-end">
+            <button type="submit" class="save btn btn-success" value="Submit">
+                {% fa6_icon "check" 'fas' %} {% trans "Confirm" %}
+            </button>
+        </div>
+        <a href="javascript:history.back()" class="btn btn-info">
+            {% fa6_icon "times" 'fas' %} {% trans "Cancel" %}
+        </a>
+    </form>
+{% endblock %}

AKModel/templates/admin/AKModel/render_ak_messages.html

 {% load tz %}
+{% load fontawesome_6 %}
 
 {% timezone event.timezone %}
     <table class="table table-striped">
@@ -7,7 +8,10 @@
             <span class="text-secondary float-end">
                 {{ message.timestamp|date:"Y-m-d H:i:s" }}
             </span>
-            <h5><a href="{{ message.ak.detail_url }}">{{ message.ak }}</a></h5>
+            <h5><a href="{{ message.ak.detail_url }}">
+                {% if message.resolved %}{% fa6_icon "check-circle" %} {% endif %}
+                {{ message.ak }}
+            </a></h5>
             <p>{{ message.text }}</p>
         </td></tr>
     {% endfor %}

AKModel/templatetags/tags_AKModel.py

@@ -3,35 +3,65 @@ from django.apps import apps
 from django.conf import settings
 from django.utils.html import format_html, mark_safe, conditional_escape
 from django.templatetags.static import static
+from django.template.defaultfilters import date
 from fontawesome_6.app_settings import get_css
 
+from AKModel.models import Event
+
 register = template.Library()
 
 
-# Get Footer Info from settings
 @register.simple_tag
 def footer_info():
+    """
+    Get Footer Info from settings
+
+    :return: a dict of several strings like the impress URL to use in the footer
+    :rtype: Dict[str, str]
+    """
     return settings.FOOTER_INFO
 
 
 @register.filter
 def check_app_installed(name):
+    """
+    Check whether the app with the given name is active in this instance
+
+    :param name: name of the app to check for
+    :return: true if app is installed
+    :rtype: bool
+    """
     return apps.is_installed(name)
 
 
 @register.filter
 def message_bootstrap_class(tag):
+    """
+    Turn message severity classes into corresponding bootstrap css classes
+
+    :param tag: severity of the message
+    :return: matching bootstrap class
+    """
     if tag == "error":
         return "alert-danger"
-    elif tag == "success":
+    if tag == "success":
         return "alert-success"
-    elif tag == "warning":
+    if tag == "warning":
         return "alert-warning"
     return "alert-info"
 
 
 @register.filter
 def wiki_owners_export(owners, event):
+    """
+    Preserve owner link information for wiki export by using internal links if possible
+    but external links when owner specified a non-wikilink. This is applied to the full list of owners
+
+    :param owners: list of owners
+    :param event: event this owner belongs to and that is currently exported (specifying this directly prevents unnecessary database lookups) #pylint: disable=line-too-long
+    :return: linkified owners list in wiki syntax
+    :rtype: str
+    """
     def to_link(owner):
         if owner.link != '':
             event_link_prefix, _ = event.base_url.rsplit("/", 1)
@@ -44,17 +74,45 @@ def wiki_owners_export(owners, event):
     return ", ".join(to_link(owner) for owner in owners.all())
 
 
+@register.filter
+def event_month_year(event:Event):
+    """
+    Print rough event date (month and year)
+    :param event: event to print the date for
+    :return: string containing rough date information for event
+    """
+    if event.start.month == event.end.month:
+        return f"{date(event.start, 'F')} {event.start.year}"
+    event_start_string = date(event.start, 'F')
+    if event.start.year != event.end.year:
+        event_start_string = f"{event_start_string} {event.start.year}"
+    return f"{event_start_string} - {date(event.end, 'F')} {event.end.year}"
+
+
+# get list of relevant css fontawesome css files for this instance
 css = get_css()
 
 
 @register.simple_tag
 def fontawesome_6_css():
+    """
+    Create html code to load all required fontawesome css files
+
+    :return: HTML code to load css
+    :rtype: str
+    """
     return mark_safe(conditional_escape('\n').join(format_html(
             '<link href="{}" rel="stylesheet" media="all">', stylesheet) for stylesheet in css))
 
 
 @register.simple_tag
 def fontawesome_6_js():
+    """
+    Create html code to load all required fontawesome javascript files
+
+    :return: HTML code to load js
+    :rtype: str
+    """
     return mark_safe(format_html(
         '<script type="text/javascript" src="{}"></script>', static('fontawesome_6/js/django-fontawesome.js')
-    ))
\ No newline at end of file
+    ))

AKModel/tests/test_json_export.py

+import json
+import math
+from collections import defaultdict
+from collections.abc import Iterable
+from datetime import datetime, timedelta
+from itertools import chain
+
+from bs4 import BeautifulSoup
+from django.contrib.auth import get_user_model
+from django.test import TestCase
+from django.urls import reverse
+from jsonschema.exceptions import best_match
+
+from AKModel.availability.models import Availability
+from AKModel.models import AK, AKCategory, AKOwner, AKSlot, DefaultSlot, Event, Room
+from AKModel.utils import construct_schema_validator
+
+
+class JSONExportTest(TestCase):
+    """Test if JSON export is correct.
+
+    It tests if the output conforms to the KoMa specification:
+    https://github.com/Die-KoMa/ak-plan-optimierung/wiki/Input-&-output-format
+    """
+
+    fixtures = ["model.json"]
+
+    @classmethod
+    def setUpTestData(cls):
+        """Shared set up by initializing admin user."""
+        cls.admin_user = get_user_model().objects.create(
+            username="Test Admin User",
+            email="testadmin@example.com",
+            password="adminpw",
+            is_staff=True,
+            is_superuser=True,
+            is_active=True,
+        )
+
+        cls.json_export_validator = construct_schema_validator(
+            "solver-input-export.schema.json"
+        )
+
+    def setUp(self):
+        self.client.force_login(self.admin_user)
+        self.export_dict = {}
+        self.export_objects = {
+            "aks": {},
+            "rooms": {},
+            "participants": {},
+        }
+
+        self.ak_slots: Iterable[AKSlot] = []
+        self.rooms: Iterable[Room] = []
+        self.slots_in_an_hour: float = 1.0
+        self.event: Event | None = None
+
+    def set_up_event(self, event: Event) -> None:
+        """Set up by retrieving json export and initializing data."""
+
+        export_url = reverse("admin:ak_json_export", kwargs={"event_slug": event.slug})
+        response = self.client.get(export_url)
+
+        self.assertEqual(response.status_code, 200, "Export not working at all")
+
+        soup = BeautifulSoup(response.content, features="lxml")
+        self.export_dict = json.loads(soup.find("pre").string)
+
+        self.export_objects["aks"] = {ak["id"]: ak for ak in self.export_dict["aks"]}
+        self.export_objects["rooms"] = {
+            room["id"]: room for room in self.export_dict["rooms"]
+        }
+        self.export_objects["participants"] = {
+            participant["id"]: participant
+            for participant in self.export_dict["participants"]
+        }
+
+        self.ak_slots = (
+            AKSlot.objects.filter(event__slug=event.slug)
+            .select_related("ak")
+            .prefetch_related("ak__conflicts")
+            .prefetch_related("ak__prerequisites")
+            .all()
+        )
+        self.rooms = Room.objects.filter(event__slug=event.slug).all()
+        self.slots_in_an_hour = 1 / self.export_dict["timeslots"]["info"]["duration"]
+        self.event = event
+
+    def test_all_aks_exported(self):
+        """Test if exported AKs match AKSlots of Event."""
+        for event in Event.objects.all():
+            with self.subTest(event=event):
+                self.set_up_event(event=event)
+                self.assertEqual(
+                    {slot.pk for slot in self.ak_slots},
+                    self.export_objects["aks"].keys(),
+                    "Exported AKs does not match the AKSlots of the event",
+                )
+
+    def _check_uniqueness(self, lst, name: str, key: str | None = "id"):
+        if key is not None:
+            lst = [entry[key] for entry in lst]
+        self.assertEqual(len(lst), len(set(lst)), f"{name} IDs not unique!")
+
+    def _check_type(self, attr, cls, name: str, item: str) -> None:
+        self.assertTrue(isinstance(attr, cls), f"{item} {name} not a {cls}")
+
+    def _check_lst(
+        self, lst: list[str], name: str, item: str, contained_type=str
+    ) -> None:
+        self.assertTrue(isinstance(lst, list), f"{item} {name} not a list")
+        self.assertTrue(
+            all(isinstance(c, contained_type) for c in lst),
+            f"{item} has non-{contained_type} {name}",
+        )
+        if contained_type in {str, int}:
+            self._check_uniqueness(lst, name, key=None)
+
+    def test_conformity_to_schema(self):
+        """Test if JSON structure and types conform to schema."""
+        for event in Event.objects.all():
+            with self.subTest(event=event):
+                self.set_up_event(event=event)
+
+                error = best_match(
+                    self.json_export_validator.iter_errors(self.export_dict)
+                )
+                msg = "" if not error else f"{error.message} at {error.json_path}"
+                self.assertFalse(error, msg)
+
+    def test_id_uniqueness(self):
+        """Test if objects are only exported once."""
+        for event in Event.objects.all():
+            with self.subTest(event=event):
+                self.set_up_event(event=event)
+
+                self._check_uniqueness(self.export_dict["aks"], "AKs")
+                self._check_uniqueness(self.export_dict["rooms"], "Rooms")
+                self._check_uniqueness(self.export_dict["participants"], "Participants")
+
+                self._check_uniqueness(
+                    chain.from_iterable(self.export_dict["timeslots"]["blocks"]),
+                    "Timeslots",
+                )
+
+    def test_timeslot_ids_consecutive(self):
+        """Test if Timeslots ids are chronologically consecutive."""
+        for event in Event.objects.all():
+            with self.subTest(event=event):
+                self.set_up_event(event=event)
+
+                prev_id = None
+                for timeslot in chain.from_iterable(
+                    self.export_dict["timeslots"]["blocks"]
+                ):
+                    if prev_id is not None:
+                        self.assertLess(
+                            prev_id,
+                            timeslot["id"],
+                            "timeslot ids must be increasing",
+                        )
+                    prev_id = timeslot["id"]
+
+    def test_general_conformity_to_spec(self):
+        """Test if rest of JSON structure and types conform to standard."""
+        for event in Event.objects.all():
+            with self.subTest(event=event):
+                self.set_up_event(event=event)
+
+                self.assertEqual(
+                    self.export_dict["participants"],
+                    [],
+                    "Empty participant list expected",
+                )
+
+                info_keys = {"title": "name", "slug": "slug"}
+                for attr in ["contact_email", "place"]:
+                    if hasattr(self.event, attr) and getattr(self.event, attr):
+                        info_keys[attr] = attr
+                self.assertEqual(
+                    self.export_dict["info"].keys(),
+                    info_keys.keys(),
+                    "info keys not as expected",
+                )
+                for attr, attr_field in info_keys.items():
+                    self.assertEqual(
+                        getattr(self.event, attr_field), self.export_dict["info"][attr]
+                    )
+
+    def test_ak_durations(self):
+        """Test if all AK durations are correct."""
+        for event in Event.objects.all():
+            with self.subTest(event=event):
+                self.set_up_event(event=event)
+
+                for slot in self.ak_slots:
+                    ak = self.export_objects["aks"][slot.pk]
+
+                    self.assertLessEqual(
+                        float(slot.duration) * self.slots_in_an_hour - 1e-4,
+                        ak["duration"],
+                        "Slot duration is too short",
+                    )
+
+                    self.assertEqual(
+                        math.ceil(float(slot.duration) * self.slots_in_an_hour - 1e-4),
+                        ak["duration"],
+                        "Slot duration is wrong",
+                    )
+
+                    self.assertEqual(
+                        float(slot.duration),
+                        ak["info"]["duration_in_hours"],
+                        "Slot duration_in_hours is wrong",
+                    )
+
+    def test_ak_conflicts(self):
+        """Test if all AK conflicts are correct."""
+        for event in Event.objects.all():
+            with self.subTest(event=event):
+                self.set_up_event(event=event)
+
+                for slot in self.ak_slots:
+                    ak = self.export_objects["aks"][slot.pk]
+                    conflict_slots = set(
+                        self.ak_slots.filter(
+                            ak__in=slot.ak.conflicts.all()
+                        ).values_list("pk", flat=True)
+                    )
+
+                    other_ak_slots = (
+                        self.ak_slots.filter(ak=slot.ak)
+                        .exclude(pk=slot.pk)
+                        .values_list("pk", flat=True)
+                    )
+                    conflict_slots.update(other_ak_slots)
+
+                    self.assertEqual(
+                        conflict_slots,
+                        set(ak["properties"]["conflicts"]),
+                        f"Conflicts for slot {slot.pk} not as expected",
+                    )
+
+    def test_ak_depenedencies(self):
+        """Test if all AK dependencies are correct."""
+        for event in Event.objects.all():
+            with self.subTest(event=event):
+                self.set_up_event(event=event)
+
+                for slot in self.ak_slots:
+                    ak = self.export_objects["aks"][slot.pk]
+                    dependency_slots = self.ak_slots.filter(
+                        ak__in=slot.ak.prerequisites.all()
+                    ).values_list("pk", flat=True)
+
+                    self.assertEqual(
+                        set(dependency_slots),
+                        set(ak["properties"]["dependencies"]),
+                        f"Dependencies for slot {slot.pk} not as expected",
+                    )
+
+    def test_ak_reso(self):
+        """Test if resolution intent of AKs is correctly exported."""
+        for event in Event.objects.all():
+            with self.subTest(event=event):
+                self.set_up_event(event=event)
+
+                for slot in self.ak_slots:
+                    ak = self.export_objects["aks"][slot.pk]
+                    self.assertEqual(slot.ak.reso, ak["info"]["reso"])
+                    self.assertEqual(
+                        slot.ak.reso, "resolution" in ak["time_constraints"]
+                    )
+
+    def test_ak_info(self):
+        """Test if contents of AK info dict is correct."""
+        for event in Event.objects.all():
+            with self.subTest(event=event):
+                self.set_up_event(event=event)
+
+                for slot in self.ak_slots:
+                    ak = self.export_objects["aks"][slot.pk]
+                    self.assertEqual(ak["info"]["name"], slot.ak.name)
+                    self.assertEqual(
+                        ak["info"]["head"], ", ".join(map(str, slot.ak.owners.all()))
+                    )
+                    self.assertEqual(ak["info"]["description"], slot.ak.description)
+                    self.assertEqual(ak["info"]["django_ak_id"], slot.ak.pk)
+                    self.assertEqual(
+                        ak["info"]["types"],
+                        list(slot.ak.types.values_list("name", flat=True).order_by()),
+                    )
+
+    def test_ak_room_constraints(self):
+        """Test if AK room constraints are exported as expected."""
+        for event in Event.objects.all():
+            with self.subTest(event=event):
+                self.set_up_event(event=event)
+
+                for slot in self.ak_slots:
+                    ak = self.export_objects["aks"][slot.pk]
+                    requirements = list(
+                        slot.ak.requirements.values_list("name", flat=True)
+                    )
+
+                    # proxy rooms
+                    if not any(constr.startswith("proxy") for constr in requirements):
+                        requirements.append("no-proxy")
+
+                    # fixed slot
+                    if slot.fixed and slot.room is not None:
+                        requirements.append(f"fixed-room-{slot.room.pk}")
+
+                    self.assertEqual(
+                        set(ak["room_constraints"]),
+                        set(requirements),
+                        f"Room constraints for slot {slot.pk} not as expected",
+                    )
+
+    def test_ak_time_constraints(self):
+        """Test if AK time constraints are exported as expected."""
+        for event in Event.objects.all():
+            with self.subTest(event=event):
+                self.set_up_event(event=event)
+
+                for slot in self.ak_slots:
+                    time_constraints = set()
+
+                    # add time constraints for AK category
+                    if slot.ak.category:
+                        category_constraints = AKCategory.create_category_optimizer_constraints(
+                            [slot.ak.category]
+                        )
+                        time_constraints |= category_constraints
+
+                    if slot.fixed and slot.start is not None:
+                        # fixed slot
+                        time_constraints.add(f"fixed-akslot-{slot.pk}")
+                    elif not Availability.is_event_covered(
+                        slot.event, slot.ak.availabilities.all()
+                    ):
+                        # restricted AK availability
+                        time_constraints.add(f"availability-ak-{slot.ak.pk}")
+
+                    for owner in slot.ak.owners.all():
+                        # restricted owner availability
+                        if not owner.availabilities.all():
+                            # no availability for owner -> assume full event is covered
+                            continue
+
+                        if not Availability.is_event_covered(
+                            slot.event, owner.availabilities.all()
+                        ):
+                            time_constraints.add(f"availability-person-{owner.pk}")
+
+                    ak = self.export_objects["aks"][slot.pk]
+                    self.assertEqual(
+                        set(ak["time_constraints"]),
+                        time_constraints,
+                        f"Time constraints for slot {slot.pk} not as expected",
+                    )
+
+    def test_all_rooms_exported(self):
+        """Test if exported Rooms match the rooms of Event."""
+        for event in Event.objects.all():
+            with self.subTest(event=event):
+                self.set_up_event(event=event)
+
+                self.assertEqual(
+                    {room.pk for room in self.rooms},
+                    self.export_objects["rooms"].keys(),
+                    "Exported Rooms do not match the Rooms of the event",
+                )
+
+    def test_room_capacity(self):
+        """Test if room capacity is exported correctly."""
+        for event in Event.objects.all():
+            with self.subTest(event=event):
+                self.set_up_event(event=event)
+
+                for room in self.rooms:
+                    export_room = self.export_objects["rooms"][room.pk]
+                    self.assertEqual(room.capacity, export_room["capacity"])
+
+    def test_room_info(self):
+        """Test if contents of Room info dict is correct."""
+        for event in Event.objects.all():
+            with self.subTest(event=event):
+                self.set_up_event(event=event)
+
+                for room in self.rooms:
+                    export_room = self.export_objects["rooms"][room.pk]
+                    self.assertEqual(room.name, export_room["info"]["name"])
+
+    def test_room_timeconstraints(self):
+        """Test if Room time constraints are exported as expected."""
+        for event in Event.objects.all():
+            with self.subTest(event=event):
+                self.set_up_event(event=event)
+
+                for room in self.rooms:
+                    time_constraints = set()
+
+                    # test if time availability of room is restricted
+                    if not Availability.is_event_covered(
+                        event, room.availabilities.all()
+                    ):
+                        time_constraints.add(f"availability-room-{room.pk}")
+
+                    export_room = self.export_objects["rooms"][room.pk]
+                    self.assertEqual(
+                        time_constraints, set(export_room["time_constraints"])
+                    )
+
+    def test_room_fulfilledroomconstraints(self):
+        """Test if room constraints fulfilled by Room are correct."""
+        for event in Event.objects.all():
+            with self.subTest(event=event):
+                self.set_up_event(event=event)
+
+                for room in self.rooms:
+                    # room properties
+                    fulfilled_room_constraints = set(
+                        room.properties.values_list("name", flat=True)
+                    )
+
+                    # proxy rooms
+                    if not any(
+                        constr.startswith("proxy")
+                        for constr in fulfilled_room_constraints
+                    ):
+                        fulfilled_room_constraints.add("no-proxy")
+
+                    fulfilled_room_constraints.add(f"fixed-room-{room.pk}")
+
+                    export_room = self.export_objects["rooms"][room.pk]
+                    self.assertEqual(
+                        fulfilled_room_constraints,
+                        set(export_room["fulfilled_room_constraints"]),
+                    )
+
+    def _get_timeslot_start_end(self, timeslot):
+        start = datetime.strptime(timeslot["info"]["start"], "%Y-%m-%d %H:%M").replace(
+            tzinfo=self.event.timezone
+        )
+        end = datetime.strptime(timeslot["info"]["end"], "%Y-%m-%d %H:%M").replace(
+            tzinfo=self.event.timezone
+        )
+        return start, end
+
+    def _get_cat_availability_in_export(self):
+        export_slot_cat_avails = defaultdict(list)
+        for timeslot in chain.from_iterable(self.export_dict["timeslots"]["blocks"]):
+            for constr in timeslot["fulfilled_time_constraints"]:
+                if constr.startswith("availability-cat-"):
+                    cat_name = constr[len("availability-cat-") :]
+                    start, end = self._get_timeslot_start_end(timeslot)
+                    export_slot_cat_avails[cat_name].append(
+                        Availability(event=self.event, start=start, end=end)
+                    )
+        return {
+            cat_name: Availability.union(avail_lst)
+            for cat_name, avail_lst in export_slot_cat_avails.items()
+        }
+
+    def _get_cat_availability(self):
+        if DefaultSlot.objects.filter(event=self.event).exists():
+            # Event has default slots -> use them for category availability
+            default_slots_avails = defaultdict(list)
+            for def_slot in DefaultSlot.objects.filter(event=self.event).all():
+                avail = Availability(
+                    event=self.event,
+                    start=def_slot.start.astimezone(self.event.timezone),
+                    end=def_slot.end.astimezone(self.event.timezone),
+                )
+                for cat in def_slot.primary_categories.all():
+                    default_slots_avails[cat.name].append(avail)
+
+            return {
+                cat_name: Availability.union(avail_lst)
+                for cat_name, avail_lst in default_slots_avails.items()
+            }
+
+        # Event has no default slots -> all categories available through whole event
+        start = self.event.start.astimezone(self.event.timezone)
+        end = self.event.end.astimezone(self.event.timezone)
+        delta = (end - start).total_seconds()
+
+        # tweak event end
+        # 1. shorten event to match discrete slot grid
+        slot_seconds = 3600 / self.slots_in_an_hour
+        remainder_seconds = delta % slot_seconds
+        remainder_seconds += 1  # add a second to compensate rounding errs
+        end -= timedelta(seconds=remainder_seconds)
+
+        # set seconds and microseconds to 0 as they are not exported to the json
+        start -= timedelta(seconds=start.second, microseconds=start.microsecond)
+        end -= timedelta(seconds=end.second, microseconds=end.microsecond)
+        event_avail = Availability(event=self.event, start=start, end=end)
+
+        category_names = AKCategory.objects.filter(event=self.event).values_list(
+            "name", flat=True
+        )
+        return {cat_name: [event_avail] for cat_name in category_names}
+
+    def test_timeslots_consecutive(self):
+        """Test if consecutive timeslots in JSON are in fact consecutive."""
+        for event in Event.objects.all():
+            with self.subTest(event=event):
+                self.set_up_event(event=event)
+
+                prev_end = None
+                for timeslot in chain.from_iterable(
+                    self.export_dict["timeslots"]["blocks"]
+                ):
+                    start, end = self._get_timeslot_start_end(timeslot)
+                    self.assertLess(start, end)
+
+                    delta = end - start
+                    self.assertAlmostEqual(
+                        delta.total_seconds() / (3600), 1 / self.slots_in_an_hour
+                    )
+
+                    if prev_end is not None:
+                        self.assertLessEqual(prev_end, start)
+                    prev_end = end
+
+    def test_block_cover_categories(self):
+        """Test if blocks covers all default slot resp. whole event per category."""
+        for event in Event.objects.all():
+            with self.subTest(event=event):
+                self.set_up_event(event=event)
+                category_names = AKCategory.objects.filter(event=event).values_list(
+                    "name", flat=True
+                )
+
+                export_cat_avails = self._get_cat_availability_in_export()
+                cat_avails = self._get_cat_availability()
+
+                for cat_name in category_names:
+                    for avail in cat_avails[cat_name]:
+                        # check that all category availabilities are covered
+                        self.assertTrue(
+                            avail.is_covered(export_cat_avails[cat_name]),
+                            f"AKCategory {cat_name}: avail ({avail.start} - {avail.end}) "
+                            f"not covered by {[f'({a.start} - {a.end})' for a in export_cat_avails[cat_name]]}",
+                        )
+
+    def _is_restricted_and_contained_slot(
+        self, slot: Availability, availabilities: list[Availability]
+    ) -> bool:
+        """Test if object is not available for whole event and may happen during slot."""
+        return slot.is_covered(availabilities) and not Availability.is_event_covered(
+            self.event, availabilities
+        )
+
+    def _is_ak_fixed_in_slot(
+        self,
+        ak_slot: AKSlot,
+        timeslot_avail: Availability,
+    ) -> bool:
+        if not ak_slot.fixed or ak_slot.start is None:
+            return False
+        ak_slot_avail = Availability(
+            event=self.event,
+            start=ak_slot.start.astimezone(self.event.timezone),
+            end=ak_slot.end.astimezone(self.event.timezone),
+        )
+        return timeslot_avail.overlaps(ak_slot_avail, strict=True)
+
+    def test_timeslot_fulfilledconstraints(self):
+        """Test if fulfilled time constraints by timeslot are as expected."""
+        for event in Event.objects.all():
+            with self.subTest(event=event):
+                self.set_up_event(event=event)
+
+                cat_avails = self._get_cat_availability()
+                num_blocks = len(self.export_dict["timeslots"]["blocks"])
+                for block_idx, block in enumerate(
+                    self.export_dict["timeslots"]["blocks"]
+                ):
+                    for timeslot in block:
+                        start, end = self._get_timeslot_start_end(timeslot)
+                        timeslot_avail = Availability(
+                            event=self.event, start=start, end=end
+                        )
+
+                        fulfilled_time_constraints = set()
+
+                        # reso deadline
+                        if self.event.reso_deadline is not None:
+                            # timeslot ends before deadline
+                            if end < self.event.reso_deadline.astimezone(
+                                self.event.timezone
+                            ):
+                                fulfilled_time_constraints.add("resolution")
+
+                        # add category constraints
+                        fulfilled_time_constraints |= (
+                            AKCategory.create_category_optimizer_constraints(
+                                [
+                                    cat
+                                    for cat in AKCategory.objects.filter(
+                                        event=self.event
+                                    ).all()
+                                    if timeslot_avail.is_covered(cat_avails[cat.name])
+                                ]
+                            )
+                        )
+
+                        # add owner constraints
+                        fulfilled_time_constraints |= {
+                            f"availability-person-{owner.id}"
+                            for owner in AKOwner.objects.filter(event=self.event).all()
+                            if self._is_restricted_and_contained_slot(
+                                timeslot_avail,
+                                Availability.union(owner.availabilities.all()),
+                            )
+                        }
+
+                        # add room constraints
+                        fulfilled_time_constraints |= {
+                            f"availability-room-{room.id}"
+                            for room in self.rooms
+                            if self._is_restricted_and_contained_slot(
+                                timeslot_avail,
+                                Availability.union(room.availabilities.all()),
+                            )
+                        }
+
+                        # add ak constraints
+                        fulfilled_time_constraints |= {
+                            f"availability-ak-{ak.id}"
+                            for ak in AK.objects.filter(event=event)
+                            if self._is_restricted_and_contained_slot(
+                                timeslot_avail,
+                                Availability.union(ak.availabilities.all()),
+                            )
+                        }
+                        fulfilled_time_constraints |= {
+                            f"fixed-akslot-{slot.id}"
+                            for slot in self.ak_slots
+                            if self._is_ak_fixed_in_slot(slot, timeslot_avail)
+                        }
+
+                        fulfilled_time_constraints |= {
+                            f"notblock{idx}"
+                            for idx in range(num_blocks)
+                            if idx != block_idx
+                        }
+
+                        self.assertEqual(
+                            fulfilled_time_constraints,
+                            set(timeslot["fulfilled_time_constraints"]),
+                        )
+
+    def test_timeslots_info(self):
+        """Test timeslots info dict"""
+        for event in Event.objects.all():
+            with self.subTest(event=event):
+                self.set_up_event(event=event)
+
+                self.assertAlmostEqual(
+                    self.export_dict["timeslots"]["info"]["duration"],
+                    float(self.event.export_slot),
+                )
+
+                block_names = []
+                for block in self.export_dict["timeslots"]["blocks"]:
+                    if not block:
+                        continue
+
+                    block_start, _ = self._get_timeslot_start_end(block[0])
+                    _, block_end = self._get_timeslot_start_end(block[-1])
+
+                    start_day = block_start.strftime("%A, %d. %b")
+                    if block_start.date() == block_end.date():
+                        # same day
+                        time_str = (
+                            block_start.strftime("%H:%M")
+                            + " - "
+                            + block_end.strftime("%H:%M")
+                        )
+                    else:
+                        # different days
+                        time_str = (
+                            block_start.strftime("%a %H:%M")
+                            + " - "
+                            + block_end.strftime("%a %H:%M")
+                        )
+                    block_names.append([start_day, time_str])
+                self.assertEqual(
+                    block_names, self.export_dict["timeslots"]["info"]["blocknames"]
+                )

AKModel/tests.py → AKModel/tests/test_views.py

 import traceback
 from typing import List
 
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.contrib.messages import get_messages
 from django.contrib.messages.storage.base import Message
 from django.test import TestCase
 from django.urls import reverse_lazy, reverse
 
-from AKModel.models import Event, AKOwner, AKCategory, AKTrack, AKRequirement, AK, Room, AKSlot, AKOrgaMessage, \
-    ConstraintViolation, DefaultSlot
+from AKModel.models import (
+    Event,
+    AKOwner,
+    AKCategory,
+    AKTrack,
+    AKRequirement,
+    AK,
+    Room,
+    AKSlot,
+    AKOrgaMessage,
+    ConstraintViolation,
+    DefaultSlot,
+)
 
 
 class BasicViewTests:
+    """
+    Parent class for "standard" tests of views
+
+    Provided with a list of views and arguments (if necessary), this will test that views
+    - render correctly without errors
+    - are only reachable with the correct rights (neither too freely nor too restricted)
+
+    To do this, the test creates sample users, fixtures are loaded automatically by the django test framework.
+    It also provides helper functions, e.g., to check for correct messages to the user or more simply generate
+    the URLs to test
+
+    In this class, methods from :class:`TestCase` will be called at multiple places event though TestCase is not a
+    parent of this class but has to be included as parent in concrete implementations of this class seperately.
+    It however still makes sense to treat this class as some kind of mixin and not implement it as a child of TestCase,
+    since the test framework does not understand the concept of abstract test definitions and would handle this class
+    as real test case otherwise, distorting the test results.
+    """
+
+    # pylint: disable=no-member
     VIEWS = []
-    APP_NAME = ''
+    APP_NAME = ""
     VIEWS_STAFF_ONLY = []
     EDIT_TESTCASES = []
 
-    def setUp(self):
-        self.staff_user = User.objects.create(
-            username='Test Staff User', email='teststaff@example.com', password='staffpw',
-            is_staff=True, is_active=True
+    def setUp(self):  # pylint: disable=invalid-name
+        """
+        Setup testing by creating sample users
+        """
+        user_model = get_user_model()
+        self.staff_user = user_model.objects.create(
+            username="Test Staff User",
+            email="teststaff@example.com",
+            password="staffpw",
+            is_staff=True,
+            is_active=True,
         )
-        self.admin_user = User.objects.create(
-            username='Test Admin User', email='testadmin@example.com', password='adminpw',
-            is_staff=True, is_superuser=True, is_active=True
+        self.admin_user = user_model.objects.create(
+            username="Test Admin User",
+            email="testadmin@example.com",
+            password="adminpw",
+            is_staff=True,
+            is_superuser=True,
+            is_active=True,
         )
-        self.deactivated_user = User.objects.create(
-            username='Test Deactivated User', email='testdeactivated@example.com', password='deactivatedpw',
-            is_staff=True, is_active=False
+        self.deactivated_user = user_model.objects.create(
+            username="Test Deactivated User",
+            email="testdeactivated@example.com",
+            password="deactivatedpw",
+            is_staff=True,
+            is_active=False,
         )
 
     def _name_and_url(self, view_name):
@@ -40,12 +84,21 @@ class BasicViewTests:
         :return: full view name with prefix if applicable, url of the view
         :rtype: str, str
         """
-        view_name_with_prefix = f"{self.APP_NAME}:{view_name[0]}" if self.APP_NAME != "" else view_name[0]
+        view_name_with_prefix = (
+            f"{self.APP_NAME}:{view_name[0]}" if self.APP_NAME != "" else view_name[0]
+        )
         url = reverse(view_name_with_prefix, kwargs=view_name[1])
         return view_name_with_prefix, url
 
     def _assert_message(self, response, expected_message, msg_prefix=""):
-        messages:List[Message] = list(get_messages(response.wsgi_request))
+        """
+        Assert that the correct message is shown and cause test to fail if not
+
+        :param response: response to check
+        :param expected_message: message that should be shown
+        :param msg_prefix: prefix for the error message when test fails
+        """
+        messages: List[Message] = list(get_messages(response.wsgi_request))
 
         msg_count = "No message shown to user"
         msg_content = "Wrong message, expected '{expected_message}'"
@@ -59,60 +112,104 @@ class BasicViewTests:
         self.assertEqual(messages[-1].message, expected_message, msg=msg_content)
 
     def test_views_for_200(self):
+        """
+        Test the list of public views (as specified in "VIEWS") for error-free rendering
+        """
         for view_name in self.VIEWS:
             view_name_with_prefix, url = self._name_and_url(view_name)
             try:
                 response = self.client.get(url)
-                self.assertEqual(response.status_code, 200, msg=f"{view_name_with_prefix} ({url}) broken")
-            except Exception as e:
-                self.fail(f"An error occurred during rendering of {view_name_with_prefix} ({url}):\n\n{traceback.format_exc()}")
+                self.assertEqual(
+                    response.status_code,
+                    200,
+                    msg=f"{view_name_with_prefix} ({url}) broken",
+                )
+            except Exception:  # pylint: disable=broad-exception-caught
+                self.fail(
+                    f"An error occurred during rendering of {view_name_with_prefix} ({url}):"
+                    f"\n\n{traceback.format_exc()}"
+                )
 
     def test_access_control_staff_only(self):
+        """
+        Test whether internal views (as specified in "VIEWS_STAFF_ONLY" are visible to staff users and staff users only
+        """
+        # Not logged in? Views should not be visible
         self.client.logout()
-        for view_name in self.VIEWS_STAFF_ONLY:
-            view_name_with_prefix, url = self._name_and_url(view_name)
+        for view_name_info in self.VIEWS_STAFF_ONLY:
+            expected_response_code = (
+                302 if len(view_name_info) == 2 else view_name_info[2]
+            )
+            view_name_with_prefix, url = self._name_and_url(view_name_info)
             response = self.client.get(url)
-            self.assertEqual(response.status_code, 302, msg=f"{view_name_with_prefix} ({url}) accessible by non-staff")
+            self.assertEqual(
+                response.status_code,
+                expected_response_code,
+                msg=f"{view_name_with_prefix} ({url}) accessible by non-staff",
+            )
 
+        # Logged in? Views should be visible
         self.client.force_login(self.staff_user)
-        for view_name in self.VIEWS_STAFF_ONLY:
-            view_name_with_prefix, url = self._name_and_url(view_name)
+        for view_name_info in self.VIEWS_STAFF_ONLY:
+            view_name_with_prefix, url = self._name_and_url(view_name_info)
             try:
                 response = self.client.get(url)
-                self.assertEqual(response.status_code, 200,
-                                 msg=f"{view_name_with_prefix} ({url}) should be accessible for staff (but isn't)")
-            except Exception as e:
-                self.fail(f"An error occurred during rendering of {view_name_with_prefix} ({url}):\n\n{traceback.format_exc()}")
-
+                self.assertEqual(
+                    response.status_code,
+                    200,
+                    msg=f"{view_name_with_prefix} ({url}) should be accessible for staff (but isn't)",
+                )
+            except Exception:  # pylint: disable=broad-exception-caught
+                self.fail(
+                    f"An error occurred during rendering of {view_name_with_prefix} ({url}):"
+                    f"\n\n{traceback.format_exc()}"
+                )
+
+        # Disabled user? Views should not be visible
         self.client.force_login(self.deactivated_user)
-        for view_name in self.VIEWS_STAFF_ONLY:
-            view_name_with_prefix, url = self._name_and_url(view_name)
+        for view_name_info in self.VIEWS_STAFF_ONLY:
+            expected_response_code = (
+                302 if len(view_name_info) == 2 else view_name_info[2]
+            )
+            view_name_with_prefix, url = self._name_and_url(view_name_info)
             response = self.client.get(url)
-            self.assertEqual(response.status_code, 302,
-                             msg=f"{view_name_with_prefix} ({url}) still accessible for deactivated user")
+            self.assertEqual(
+                response.status_code,
+                expected_response_code,
+                msg=f"{view_name_with_prefix} ({url}) still accessible for deactivated user",
+            )
 
-    def _to_sendable_value(self, v):
+    def _to_sendable_value(self, val):
         """
         Create representation sendable via POST from form data
 
-        :param v: value to prepare
-        :type v: any
+        Needed to automatically check create, update and delete views
+
+        :param val: value to prepare
+        :type val: any
         :return: prepared value (normally either raw value or primary key of complex object)
         """
-        if type(v) == list:
-            return [e.pk for e in v]
-        if type(v) == "RelatedManager":
-            return [e.pk for e in v.all()]
-        return v
+        if isinstance(val, list):
+            return [e.pk for e in val]
+        if type(val) == "RelatedManager":  # pylint: disable=unidiomatic-typecheck
+            return [e.pk for e in val.all()]
+        return val
 
     def test_submit_edit_form(self):
         """
-        Test edit forms in the most simple way (sending them again unchanged)
+        Test edit forms (as specified in "EDIT_TESTCASES") in the most simple way (sending them again unchanged)
         """
         for testcase in self.EDIT_TESTCASES:
             self._test_submit_edit_form(testcase)
 
     def _test_submit_edit_form(self, testcase):
+        """
+        Test a single edit form by rendering and sending it again unchanged
+
+        This will test for correct rendering, dispatching/redirecting, messages and access control handling
+
+        :param testcase: details of the form to test
+        """
         name, url = self._name_and_url((testcase["view"], testcase["kwargs"]))
         form_name = testcase.get("form_name", "form")
         expected_code = testcase.get("expected_code", 302)
@@ -130,79 +227,137 @@ class BasicViewTests:
             self.client.logout()
 
         response = self.client.get(url)
-        self.assertEqual(response.status_code, 200, msg=f"{name}: Could not load edit form via GET ({url})")
+        self.assertEqual(
+            response.status_code,
+            200,
+            msg=f"{name}: Could not load edit form via GET ({url})",
+        )
 
         form = response.context[form_name]
-        data = {k:self._to_sendable_value(v) for k,v in form.initial.items()}
+        data = {k: self._to_sendable_value(v) for k, v in form.initial.items()}
 
         response = self.client.post(url, data=data)
         if expected_code == 200:
-            self.assertEqual(response.status_code, 200, msg=f"{name}: Did not return 200 ({url}")
+            self.assertEqual(
+                response.status_code, 200, msg=f"{name}: Did not return 200 ({url}"
+            )
         elif expected_code == 302:
-            self.assertRedirects(response, target_url, msg_prefix=f"{name}: Did not redirect ({url} -> {target_url}")
+            self.assertRedirects(
+                response,
+                target_url,
+                msg_prefix=f"{name}: Did not redirect ({url} -> {target_url}",
+            )
         if expected_message != "":
             self._assert_message(response, expected_message, msg_prefix=f"{name}")
 
 
 class ModelViewTests(BasicViewTests, TestCase):
-    fixtures = ['model.json']
+    """
+    Basic view test cases for views from AKModel plus some custom tests
+    """
+
+    fixtures = ["model.json"]
 
     ADMIN_MODELS = [
-        (Event, 'event'), (AKOwner, 'akowner'), (AKCategory, 'akcategory'), (AKTrack, 'aktrack'),
-        (AKRequirement, 'akrequirement'), (AK, 'ak'), (Room, 'room'), (AKSlot, 'akslot'),
-        (AKOrgaMessage, 'akorgamessage'), (ConstraintViolation, 'constraintviolation'),
-        (DefaultSlot, 'defaultslot')
+        (Event, "event"),
+        (AKOwner, "akowner"),
+        (AKCategory, "akcategory"),
+        (AKTrack, "aktrack"),
+        (AKRequirement, "akrequirement"),
+        (AK, "ak"),
+        (Room, "room"),
+        (AKSlot, "akslot"),
+        (AKOrgaMessage, "akorgamessage"),
+        (ConstraintViolation, "constraintviolation"),
+        (DefaultSlot, "defaultslot"),
     ]
 
     VIEWS_STAFF_ONLY = [
-        ('admin:index', {}),
-        ('admin:event_status', {'event_slug': 'kif42'}),
-        ('admin:event_requirement_overview', {'event_slug': 'kif42'}),
-        ('admin:ak_csv_export', {'event_slug': 'kif42'}),
-        ('admin:ak_wiki_export', {'slug': 'kif42'}),
-        ('admin:ak_delete_orga_messages', {'event_slug': 'kif42'}),
-        ('admin:ak_slide_export', {'event_slug': 'kif42'}),
-        ('admin:default-slots-editor', {'event_slug': 'kif42'}),
-        ('admin:room-import', {'event_slug': 'kif42'}),
-        ('admin:new_event_wizard_start', {}),
+        ("admin:index", {}),
+        ("admin:event_status", {"event_slug": "kif42"}),
+        ("admin:event_requirement_overview", {"event_slug": "kif42"}),
+        ("admin:ak_csv_export", {"event_slug": "kif42"}),
+        ("admin:ak_json_export", {"event_slug": "kif42"}),
+        ("admin:ak_wiki_export", {"slug": "kif42"}),
+        ("admin:ak_schedule_json_import", {"event_slug": "kif42"}),
+        ("admin:ak_delete_orga_messages", {"event_slug": "kif42"}),
+        ("admin:ak_slide_export", {"event_slug": "kif42"}),
+        ("admin:default-slots-editor", {"event_slug": "kif42"}),
+        ("admin:room-import", {"event_slug": "kif42"}),
+        ("admin:new_event_wizard_start", {}),
     ]
 
     EDIT_TESTCASES = [
-        {'view': 'admin:default-slots-editor', 'kwargs': {'event_slug': 'kif42'}, "admin": True},
+        {
+            "view": "admin:default-slots-editor",
+            "kwargs": {"event_slug": "kif42"},
+            "admin": True,
+        },
     ]
 
     def test_admin(self):
+        """
+        Test basic admin functionality (displaying and interacting with model instances)
+        """
         self.client.force_login(self.admin_user)
         for model in self.ADMIN_MODELS:
+            # Special treatment for a subset of views (where we exchanged default functionality, e.g., create views)
             if model[1] == "event":
-                view_name_with_prefix, url = self._name_and_url((f'admin:new_event_wizard_start', {}))
+                _, url = self._name_and_url(("admin:new_event_wizard_start", {}))
             elif model[1] == "room":
-                view_name_with_prefix, url = self._name_and_url((f'admin:room-new', {}))
+                _, url = self._name_and_url(("admin:room-new", {}))
+            # Otherwise, just call the creation form view
             else:
-                view_name_with_prefix, url = self._name_and_url((f'admin:AKModel_{model[1]}_add', {}))
+                _, url = self._name_and_url((f"admin:AKModel_{model[1]}_add", {}))
             response = self.client.get(url)
-            self.assertEqual(response.status_code, 200, msg=f"Add form for model {model[1]} ({url}) broken")
+            self.assertEqual(
+                response.status_code,
+                200,
+                msg=f"Add form for model {model[1]} ({url}) broken",
+            )
 
         for model in self.ADMIN_MODELS:
+            # Test the update view using the first existing instance of each model
             m = model[0].objects.first()
             if m is not None:
-                view_name_with_prefix, url = self._name_and_url((f'admin:AKModel_{model[1]}_change', {'object_id': m.pk}))
+                _, url = self._name_and_url(
+                    (f"admin:AKModel_{model[1]}_change", {"object_id": m.pk})
+                )
                 response = self.client.get(url)
-                self.assertEqual(response.status_code, 200, msg=f"Edit form for model {model[1]} ({url}) broken")
+                self.assertEqual(
+                    response.status_code,
+                    200,
+                    msg=f"Edit form for model {model[1]} ({url}) broken",
+                )
 
     def test_wiki_export(self):
+        """
+        Test wiki export
+        This will test whether the view renders at all and whether the export list contains the correct AKs
+        """
         self.client.force_login(self.admin_user)
 
-        export_url = reverse_lazy(f"admin:ak_wiki_export", kwargs={'slug': 'kif42'})
+        export_url = reverse_lazy("admin:ak_wiki_export", kwargs={"slug": "kif42"})
         response = self.client.get(export_url)
         self.assertEqual(response.status_code, 200, "Export not working at all")
 
         export_count = 0
-        for category, aks in response.context["categories_with_aks"]:
+        for _, aks in response.context["categories_with_aks"]:
             for ak in aks:
-                self.assertEqual(ak.include_in_export, True, f"AK with export flag set to False (pk={ak.pk}) included in export")
-                self.assertNotEqual(ak.pk, 1, "AK known to be excluded from export (PK 1) included in export")
+                self.assertEqual(
+                    ak.include_in_export,
+                    True,
+                    f"AK with export flag set to False (pk={ak.pk}) included in export",
+                )
+                self.assertNotEqual(
+                    ak.pk,
+                    1,
+                    "AK known to be excluded from export (PK 1) included in export",
+                )
                 export_count += 1
 
-        self.assertEqual(export_count, AK.objects.filter(event_id=2, include_in_export=True).count(),
-                         "Wiki export contained the wrong number of AKs")
+        self.assertEqual(
+            export_count,
+            AK.objects.filter(event_id=2, include_in_export=True).count(),
+            "Wiki export contained the wrong number of AKs",
+        )

AKModel/urls.py

@@ -4,12 +4,16 @@ from django.urls import include, path
 from rest_framework.routers import DefaultRouter
 
 import AKModel.views.api
-from AKModel.views.manage import ExportSlidesView
-from AKModel.views.ak import AKRequirementOverview, AKCSVExportView, AKWikiExportView, AKMessageDeleteView
+from AKModel.views.manage import ExportSlidesView, PlanPublishView, PlanUnpublishView, DefaultSlotEditorView, \
+    AKsByUserView, AKScheduleJSONImportView
+from AKModel.views.ak import AKRequirementOverview, AKCSVExportView, AKJSONExportView, AKWikiExportView, \
+     AKMessageDeleteView
 from AKModel.views.event_wizard import NewEventWizardStartView, NewEventWizardPrepareImportView, \
     NewEventWizardImportView, NewEventWizardActivateView, NewEventWizardFinishView, NewEventWizardSettingsView
+from AKModel.views.room import RoomBatchCreationView
 from AKModel.views.status import EventStatusView
 
+# Register basic API views/endpoints
 api_router = DefaultRouter()
 api_router.register('akowner', AKModel.views.api.AKOwnerViewSet, basename='AKOwner')
 api_router.register('akcategory', AKModel.views.api.AKCategoryViewSet, basename='AKCategory')
@@ -18,7 +22,9 @@ api_router.register('ak', AKModel.views.api.AKViewSet, basename='AK')
 api_router.register('room', AKModel.views.api.RoomViewSet, basename='Room')
 api_router.register('akslot', AKModel.views.api.AKSlotViewSet, basename='AKSlot')
 
+# TODO Can we move this functionality to the individual apps instead?
 extra_paths = []
+# If AKScheduling is active, register additional API endpoints
 if apps.is_installed("AKScheduling"):
     from AKScheduling.api import ResourcesViewSet, RoomAvailabilitiesView, EventsView, EventsViewSet, \
         ConstraintViolationsViewSet, DefaultSlotsView
@@ -33,9 +39,10 @@ if apps.is_installed("AKScheduling"):
              name='scheduling-room-availabilities')),
     extra_paths.append(path('api/scheduling-default-slots/', DefaultSlotsView.as_view(),
              name='scheduling-default-slots'))
+
+#If AKSubmission is active, register an additional API endpoint for increasing the interest counter
 if apps.is_installed("AKSubmission"):
     from AKSubmission.api import increment_interest_counter
-
     extra_paths.append(path('api/ak/<pk>/indicate-interest/', increment_interest_counter, name='submission-ak-indicate-interest'))
 
 event_specific_paths = [
@@ -45,6 +52,7 @@ event_specific_paths.extend(extra_paths)
 
 app_name = 'model'
 
+# Included all these extra view paths at a path starting with the event slug
 urlpatterns = [
     path(
         '<slug:event_slug>/',
@@ -55,6 +63,9 @@ urlpatterns = [
 
 
 def get_admin_urls_event_wizard(admin_site):
+    """
+    Defines all additional URLs for the event creation wizard
+    """
     return [
         path('add/wizard/start/', admin_site.admin_view(NewEventWizardStartView.as_view()),
              name="new_event_wizard_start"),
@@ -75,15 +86,30 @@ def get_admin_urls_event_wizard(admin_site):
 
 
 def get_admin_urls_event(admin_site):
+    """
+    Defines all additional event-related view URLs that will be included in the event admin interface
+    """
     return [
         path('<slug:event_slug>/status/', admin_site.admin_view(EventStatusView.as_view()), name="event_status"),
         path('<slug:event_slug>/requirements/', admin_site.admin_view(AKRequirementOverview.as_view()),
              name="event_requirement_overview"),
+        path('<slug:event_slug>/aks/owner/<pk>/', admin_site.admin_view(AKsByUserView.as_view()),
+             name="aks_by_owner"),
         path('<slug:event_slug>/ak-csv-export/', admin_site.admin_view(AKCSVExportView.as_view()),
              name="ak_csv_export"),
+        path('<slug:event_slug>/ak-json-export/', admin_site.admin_view(AKJSONExportView.as_view()),
+             name="ak_json_export"),
+        path('<slug:event_slug>/ak-schedule-json-import/', admin_site.admin_view(AKScheduleJSONImportView.as_view()),
+             name="ak_schedule_json_import"),
         path('<slug:slug>/ak-wiki-export/', admin_site.admin_view(AKWikiExportView.as_view()),
              name="ak_wiki_export"),
         path('<slug:event_slug>/delete-orga-messages/', admin_site.admin_view(AKMessageDeleteView.as_view()),
              name="ak_delete_orga_messages"),
         path('<slug:event_slug>/ak-slide-export/', admin_site.admin_view(ExportSlidesView.as_view()), name="ak_slide_export"),
+        path('plan/publish/', admin_site.admin_view(PlanPublishView.as_view()), name="plan-publish"),
+        path('plan/unpublish/', admin_site.admin_view(PlanUnpublishView.as_view()), name="plan-unpublish"),
+        path('<slug:event_slug>/defaultSlots/', admin_site.admin_view(DefaultSlotEditorView.as_view()),
+             name="default-slots-editor"),
+        path('<slug:event_slug>/importRooms/', admin_site.admin_view(RoomBatchCreationView.as_view()),
+             name="room-import"),
     ]

AKModel/utils.py

+from pathlib import Path
+
+import referencing.retrieval
+from jsonschema import Draft202012Validator
+from jsonschema.protocols import Validator
+from referencing import Registry
+
+from AKPlanning import settings
+
+
+def _construct_schema_path(uri: str | Path) -> Path:
+    """Construct a schema URI.
+
+    This function also checks for unallowed directory traversals
+    out of the 'schema' subfolder.
+    """
+    schema_base_path = Path(settings.BASE_DIR).resolve()
+    uri_path = (schema_base_path / uri).resolve()
+    if not uri_path.is_relative_to(schema_base_path / "schemas"):
+        raise ValueError("Unallowed dictionary traversal")
+    return uri_path
+
+
+@referencing.retrieval.to_cached_resource()
+def retrieve_schema_from_disk(uri: str) -> str:
+    """Retrieve schemas from disk by URI."""
+    uri_path = _construct_schema_path(uri)
+    with uri_path.open("r") as ff:
+        return ff.read()
+
+
+def construct_schema_validator(schema: str | dict) -> Validator:
+    """Construct a validator for a JSON schema.
+
+    In particular, all schemas from the 'schemas' directory
+    are loaded into the registry.
+    """
+    registry = Registry(retrieve=retrieve_schema_from_disk)
+
+    if isinstance(schema, str):
+        schema_uri = str(Path("schemas") / schema)
+        schema = registry.get_or_retrieve(schema_uri).value.contents
+    return Draft202012Validator(schema=schema, registry=registry)

AKModel/views/ak.py

+import json
+
 from django.contrib import messages
+from django.shortcuts import redirect
 from django.urls import reverse_lazy
 from django.utils.translation import gettext_lazy as _
 from django.views.generic import ListView, DetailView
@@ -9,6 +12,9 @@ from AKModel.models import AKRequirement, AKSlot, Event, AKOrgaMessage, AK
 
 
 class AKRequirementOverview(AdminViewMixin, FilterByEventSlugMixin, ListView):
+    """
+    View: Display requirements for the given event
+    """
     model = AKRequirement
     context_object_name = "requirements"
     title = _("Requirements for Event")
@@ -22,6 +28,9 @@ class AKRequirementOverview(AdminViewMixin, FilterByEventSlugMixin, ListView):
 
 
 class AKCSVExportView(AdminViewMixin, FilterByEventSlugMixin, ListView):
+    """
+    View: Export all AK slots of this event in CSV format ordered by tracks
+    """
     template_name = "admin/AKModel/ak_csv_export.html"
     model = AKSlot
     context_object_name = "slots"
@@ -30,12 +39,50 @@ class AKCSVExportView(AdminViewMixin, FilterByEventSlugMixin, ListView):
     def get_queryset(self):
         return super().get_queryset().order_by("ak__track")
 
+
+class AKJSONExportView(AdminViewMixin, DetailView):
+    """
+    View: Export all AK slots of this event in JSON format ordered by tracks
+    """
+    template_name = "admin/AKModel/ak_json_export.html"
+    model = Event
+    context_object_name = "event"
+    title = _("AK JSON Export")
+    slug_url_kwarg = "event_slug"
+
     def get_context_data(self, **kwargs):
         context = super().get_context_data(**kwargs)
+        try:
+            data = context["event"].as_json_dict()
+            context["json_data_oneline"] = json.dumps(data, ensure_ascii=False)
+            context["json_data"] = json.dumps(data, indent=2, ensure_ascii=False)
+            context["is_valid"] = True
+        except ValueError as ex:
+            messages.add_message(
+                self.request,
+                messages.ERROR,
+                _("Exporting AKs for the solver failed! Reason: ") + str(ex),
+            )
         return context
 
+    def get(self, request, *args, **kwargs):
+        # as this code is adapted from BaseDetailView::get
+        # pylint: disable=attribute-defined-outside-init
+        self.object = self.get_object()
+        context = self.get_context_data(object=self.object)
+
+        # if serialization failed in `get_context_data` we redirect to
+        #   the status page and show a message instead
+        if not context.get("is_valid", False):
+            return redirect("admin:event_status", context["event"].slug)
+        return self.render_to_response(context)
+
 
 class AKWikiExportView(AdminViewMixin, DetailView):
+    """
+    View: Export AKs of this event in wiki syntax
+    This will show one text field per category, with a separate category/field for wishes
+    """
     template_name = "admin/AKModel/wiki_export.html"
     model = Event
     context_object_name = "event"
@@ -46,7 +93,7 @@ class AKWikiExportView(AdminViewMixin, DetailView):
 
         categories_with_aks, ak_wishes = context["event"].get_categories_with_aks(
             wishes_seperately=True,
-            filter=lambda ak: ak.include_in_export
+            filter_func=lambda ak: ak.include_in_export
         )
 
         context["categories_with_aks"] = [(category.name, ak_list) for category, ak_list in categories_with_aks]
@@ -56,10 +103,18 @@ class AKWikiExportView(AdminViewMixin, DetailView):
 
 
 class AKMessageDeleteView(EventSlugMixin, IntermediateAdminView):
+    """
+    View: Confirmation page to delete confidential AK-related messages to orga
+
+    Confirmation functionality provided by :class:`AKModel.metaviews.admin.IntermediateAdminView`
+    """
     template_name = "admin/AKModel/message_delete.html"
     title = _("Delete AK Orga Messages")
 
     def get_orga_messages_for_event(self, event):
+        """
+        Get all orga messages for the given event
+        """
         return AKOrgaMessage.objects.filter(ak__event=event)
 
     def get_success_url(self):
@@ -77,6 +132,11 @@ class AKMessageDeleteView(EventSlugMixin, IntermediateAdminView):
 
 
 class AKResetInterestView(IntermediateAdminActionView):
+    """
+    View: Confirmation page to reset all manually specified interest values
+
+    Confirmation functionality provided by :class:`AKModel.metaviews.admin.IntermediateAdminView`
+    """
     title = _("Reset interest in AKs")
     model = AK
     confirmation_message = _("Interest of the following AKs will be set to not filled (-1):")
@@ -87,6 +147,11 @@ class AKResetInterestView(IntermediateAdminActionView):
 
 
 class AKResetInterestCounterView(IntermediateAdminActionView):
+    """
+    View: Confirmation page to reset all interest counters (online interest indication)
+
+    Confirmation functionality provided by :class:`AKModel.metaviews.admin.IntermediateAdminView`
+    """
     title = _("Reset AKs' interest counters")
     model = AK
     confirmation_message = _("Interest counter of the following AKs will be set to 0:")

AKModel/views/api.py

@@ -7,6 +7,10 @@ from AKModel.serializers import AKOwnerSerializer, AKCategorySerializer, AKTrack
 
 
 class AKOwnerViewSet(EventSlugMixin, mixins.RetrieveModelMixin, mixins.ListModelMixin, viewsets.GenericViewSet):
+    """
+    API View: Owners (restricted to those of the given event)
+    Read-only
+    """
     permission_classes = (permissions.DjangoModelPermissionsOrAnonReadOnly,)
     serializer_class = AKOwnerSerializer
 
@@ -15,6 +19,10 @@ class AKOwnerViewSet(EventSlugMixin, mixins.RetrieveModelMixin, mixins.ListModel
 
 
 class AKCategoryViewSet(EventSlugMixin, mixins.RetrieveModelMixin, mixins.ListModelMixin, viewsets.GenericViewSet):
+    """
+    API View: Categories (restricted to those of the given event)
+    Read-only
+    """
     permission_classes = (permissions.DjangoModelPermissionsOrAnonReadOnly,)
     serializer_class = AKCategorySerializer
 
@@ -24,6 +32,10 @@ class AKCategoryViewSet(EventSlugMixin, mixins.RetrieveModelMixin, mixins.ListMo
 
 class AKTrackViewSet(EventSlugMixin, mixins.RetrieveModelMixin, mixins.CreateModelMixin, mixins.UpdateModelMixin,
                      mixins.DestroyModelMixin, mixins.ListModelMixin, viewsets.GenericViewSet):
+    """
+    API View: Tracks (restricted to those of the given event)
+    Read, Write, Delete
+    """
     permission_classes = (permissions.DjangoModelPermissionsOrAnonReadOnly,)
     serializer_class = AKTrackSerializer
 
@@ -33,6 +45,10 @@ class AKTrackViewSet(EventSlugMixin, mixins.RetrieveModelMixin, mixins.CreateMod
 
 class AKViewSet(EventSlugMixin, mixins.RetrieveModelMixin, mixins.UpdateModelMixin, mixins.ListModelMixin,
                 viewsets.GenericViewSet):
+    """
+    API View: AKs (restricted to those of the given event)
+    Read, Write
+    """
     permission_classes = (permissions.DjangoModelPermissionsOrAnonReadOnly,)
     serializer_class = AKSerializer
 
@@ -41,6 +57,10 @@ class AKViewSet(EventSlugMixin, mixins.RetrieveModelMixin, mixins.UpdateModelMix
 
 
 class RoomViewSet(EventSlugMixin, mixins.RetrieveModelMixin, mixins.ListModelMixin, viewsets.GenericViewSet):
+    """
+    API View: Rooms (restricted to those of the given event)
+    Read-only
+    """
     permission_classes = (permissions.DjangoModelPermissionsOrAnonReadOnly,)
     serializer_class = RoomSerializer
 
@@ -50,6 +70,10 @@ class RoomViewSet(EventSlugMixin, mixins.RetrieveModelMixin, mixins.ListModelMix
 
 class AKSlotViewSet(EventSlugMixin, mixins.RetrieveModelMixin, mixins.CreateModelMixin, mixins.UpdateModelMixin,
                     mixins.ListModelMixin, viewsets.GenericViewSet):
+    """
+    API View: AK slots (restricted to those of the given event)
+    Read, Write
+    """
     permission_classes = (permissions.DjangoModelPermissionsOrAnonReadOnly,)
     serializer_class = AKSlotSerializer
 

AKModel/views/event_wizard.py

@@ -12,6 +12,12 @@ from AKModel.models import Event
 
 
 class NewEventWizardStartView(AdminViewMixin, WizardViewMixin, CreateView):
+    """
+    Wizard view: Entry/Start
+
+    Specify basic settings, especially the timezone for correct time treatment in the next view
+    (:class:`NewEventWizardSettingsView`) where this view will redirect to without saving the new event already
+    """
     model = Event
     form_class = NewEventWizardStartForm
     template_name = "admin/AKModel/event_wizard/start.html"
@@ -19,6 +25,16 @@ class NewEventWizardStartView(AdminViewMixin, WizardViewMixin, CreateView):
 
 
 class NewEventWizardSettingsView(AdminViewMixin, WizardViewMixin, CreateView):
+    """
+    Wizard view: Event settings
+
+    Specify most of the event settings. The user will see that certain fields are required since they were lead here
+    from another form in :class:`NewEventWizardStartView` that did not contain these fields even though they are
+    mandatory for the event model
+
+    Next step will then be :class:`NewEventWizardPrepareImportView` to prepare copy configuration elements
+    from an existing event
+    """
     model = Event
     form_class = NewEventWizardSettingsForm
     template_name = "admin/AKModel/event_wizard/settings.html"
@@ -34,6 +50,14 @@ class NewEventWizardSettingsView(AdminViewMixin, WizardViewMixin, CreateView):
 
 
 class NewEventWizardPrepareImportView(WizardViewMixin, EventSlugMixin, FormView):
+    """
+    Wizard view: Choose event to copy configuration elements from
+
+    The user can here select an existing event to copy elements like requirements, categories and dashboard buttons from
+    The exact subset of elements to copy from can then be selected in the next view (:class:`NewEventWizardImportView`)
+
+    Instead, this step can be skipped by directly continuing with :class:`NewEventWizardActivateView`
+    """
     form_class = NewEventWizardPrepareImportForm
     template_name = "admin/AKModel/event_wizard/created_prepare_import.html"
     wizard_step = 3
@@ -45,29 +69,40 @@ class NewEventWizardPrepareImportView(WizardViewMixin, EventSlugMixin, FormView)
 
 
 class NewEventWizardImportView(EventSlugMixin, WizardViewMixin, FormView):
+    """
+    Wizard view: Select configuration elements to copy
+
+    Displays lists of requirements, categories and dashboard buttons that the user can select entries to be copied from
+
+    Afterwards, the event can be activated in :class:`NewEventWizardActivateView`
+    """
     form_class = NewEventWizardImportForm
     template_name = "admin/AKModel/event_wizard/import.html"
     wizard_step = 4
 
     def get_initial(self):
         initial = super().get_initial()
+        # Remember which event was selected and send it again when submitting the form for validation
         initial["import_event"] = Event.objects.get(slug=self.kwargs["import_slug"])
         return initial
 
     def form_valid(self, form):
+        # pylint: disable=consider-using-f-string
         import_types = ["import_categories", "import_requirements"]
         if apps.is_installed("AKDashboard"):
             import_types.append("import_buttons")
 
+        # Loop over all kinds of configuration elements and then over all selected elements of each type
+        # and try to clone them by requesting a new primary key, adapting the event and then storing the
+        # object in the database
         for import_type in import_types:
             for import_obj in form.cleaned_data.get(import_type):
-                # clone existing entry
                 try:
                     import_obj.event = self.event
                     import_obj.pk = None
                     import_obj.save()
                     messages.add_message(self.request, messages.SUCCESS, _("Copied '%(obj)s'" % {'obj': import_obj}))
-                except BaseException as e:
+                except BaseException as e:  # pylint: disable=broad-exception-caught
                     messages.add_message(self.request, messages.ERROR,
                                          _("Could not copy '%(obj)s' (%(error)s)" % {'obj': import_obj,
                                                                                      "error": str(e)}))
@@ -75,6 +110,17 @@ class NewEventWizardImportView(EventSlugMixin, WizardViewMixin, FormView):
 
 
 class NewEventWizardActivateView(WizardViewMixin, UpdateView):
+    """
+    Wizard view: Allow activating the event
+
+    The user is asked to make the created event active. This is done in this step and not already during the creation
+    in the second step of the wizard to prevent users seeing an unconfigured submission.
+    The event will nevertheless already be visible in the dashboard before, when a public event was created in
+    :class:`NewEventWizardSettingsView`.
+
+    In the following last step (:class:`NewEventWizardFinishView`), a confirmation of the full process and some
+    details of the created event are shown
+    """
     model = Event
     template_name = "admin/AKModel/event_wizard/activate.html"
     form_class = NewEventWizardActivateForm
@@ -85,6 +131,11 @@ class NewEventWizardActivateView(WizardViewMixin, UpdateView):
 
 
 class NewEventWizardFinishView(WizardViewMixin, DetailView):
+    """
+    Wizard view: Confirmation and summary
+
+    Show a confirmation and a summary of the created event
+    """
     model = Event
     template_name = "admin/AKModel/event_wizard/finish.html"
     wizard_step = 6

AKModel/views/manage.py

@@ -4,30 +4,44 @@ import os
 import tempfile
 from itertools import zip_longest
 
+
 from django.contrib import messages
 from django.db.models.functions import Now
+from django.shortcuts import redirect
 from django.utils.dateparse import parse_datetime
 from django.utils.translation import gettext_lazy as _
-from django.views.generic import TemplateView
+from django.views.generic import TemplateView, DetailView
 from django_tex.core import render_template_with_context, run_tex_in_directory
 from django_tex.response import PDFResponse
 
-from AKModel.forms import SlideExportForm, DefaultSlotEditorForm
-from AKModel.metaviews.admin import EventSlugMixin, IntermediateAdminView, IntermediateAdminActionView
-from AKModel.models import ConstraintViolation, Event, DefaultSlot
+from AKModel.forms import SlideExportForm, DefaultSlotEditorForm, JSONScheduleImportForm
+from AKModel.metaviews.admin import EventSlugMixin, IntermediateAdminView, IntermediateAdminActionView, AdminViewMixin
+from AKModel.models import ConstraintViolation, Event, DefaultSlot, AKOwner
 
 
 class UserView(TemplateView):
+    """
+    View: Start page for logged in user
+
+    Will over a link to backend or inform the user that their account still needs to be confirmed
+    """
     template_name = "AKModel/user.html"
 
 
 class ExportSlidesView(EventSlugMixin, IntermediateAdminView):
+    """
+    View: Export slides to present AKs
+
+    Over a form to choose some settings for the export and then generate the PDF
+    """
     title = _('Export AK Slides')
     form_class = SlideExportForm
 
     def form_valid(self, form):
+        # pylint: disable=invalid-name
         template_name = 'admin/AKModel/export/slides.tex'
 
+        # Settings
         NEXT_AK_LIST_LENGTH = form.cleaned_data['num_next']
         RESULT_PRESENTATION_MODE = form.cleaned_data["presentation_mode"]
         SPACE_FOR_NOTES_IN_WISHES = form.cleaned_data["wish_notes"]
@@ -42,12 +56,18 @@ class ExportSlidesView(EventSlugMixin, IntermediateAdminView):
         }
 
         def build_ak_list_with_next_aks(ak_list):
+            """
+            Create a list of tuples cosisting of an AK and a list of upcoming AKs (list length depending on setting)
+            """
             next_aks_list = zip_longest(*[ak_list[i + 1:] for i in range(NEXT_AK_LIST_LENGTH)], fillvalue=None)
-            return [(ak, next_aks) for ak, next_aks in zip_longest(ak_list, next_aks_list, fillvalue=list())]
+            return list(zip_longest(ak_list, next_aks_list, fillvalue=[]))
 
-        categories_with_aks, ak_wishes = self.event.get_categories_with_aks(wishes_seperately=True, filter=lambda
+        # Get all relevant AKs (wishes separately, and either all AKs or only those who should directly or indirectly
+        # be presented when restriction setting was chosen)
+        categories_with_aks, ak_wishes = self.event.get_categories_with_aks(wishes_seperately=True, filter_func=lambda
             ak: not RESULT_PRESENTATION_MODE or (ak.present or (ak.present is None and ak.category.present_by_default)))
 
+        # Create context for LaTeX rendering
         context = {
             'title': self.event.name,
             'categories_with_aks': [(category, build_ak_list_with_next_aks(ak_list)) for category, ak_list in
@@ -67,11 +87,17 @@ class ExportSlidesView(EventSlugMixin, IntermediateAdminView):
             os.remove(f'{tempdir}/texput.tex')
             pdf = run_tex_in_directory(source, tempdir, template_name=self.template_name)
 
+        # Show PDF file to the user (with a filename containing a timestamp to prevent confusions about the right
+        # version to use when generating multiple versions of the slides, e.g., because owners did last-minute changes
+        # to their AKs
         timestamp = datetime.datetime.now(tz=self.event.timezone).strftime("%Y-%m-%d_%H_%M")
         return PDFResponse(pdf, filename=f'{self.event.slug}_ak_slides_{timestamp}.pdf')
 
 
 class CVMarkResolvedView(IntermediateAdminActionView):
+    """
+    Admin action view: Mark one or multitple constraint violation(s) as resolved
+    """
     title = _('Mark Constraint Violations as manually resolved')
     model = ConstraintViolation
     confirmation_message = _("The following Constraint Violations will be marked as manually resolved")
@@ -82,6 +108,9 @@ class CVMarkResolvedView(IntermediateAdminActionView):
 
 
 class CVSetLevelViolationView(IntermediateAdminActionView):
+    """
+    Admin action view: Set one or multitple constraint violation(s) as to level "violation"
+    """
     title = _('Set Constraint Violations to level "violation"')
     model = ConstraintViolation
     confirmation_message = _("The following Constraint Violations will be set to level 'violation'")
@@ -92,6 +121,9 @@ class CVSetLevelViolationView(IntermediateAdminActionView):
 
 
 class CVSetLevelWarningView(IntermediateAdminActionView):
+    """
+    Admin action view: Set one or multitple constraint violation(s) as to level "warning"
+    """
     title = _('Set Constraint Violations to level "warning"')
     model = ConstraintViolation
     confirmation_message = _("The following Constraint Violations will be set to level 'warning'")
@@ -102,6 +134,9 @@ class CVSetLevelWarningView(IntermediateAdminActionView):
 
 
 class PlanPublishView(IntermediateAdminActionView):
+    """
+    Admin action view: Publish the plan of one or multitple event(s)
+    """
     title = _('Publish plan')
     model = Event
     confirmation_message = _('Publish the plan(s) of:')
@@ -112,6 +147,9 @@ class PlanPublishView(IntermediateAdminActionView):
 
 
 class PlanUnpublishView(IntermediateAdminActionView):
+    """
+    Admin action view: Unpublish the plan of one or multitple event(s)
+    """
     title = _('Unpublish plan')
     model = Event
     confirmation_message = _('Unpublish the plan(s) of:')
@@ -122,6 +160,9 @@ class PlanUnpublishView(IntermediateAdminActionView):
 
 
 class DefaultSlotEditorView(EventSlugMixin, IntermediateAdminView):
+    """
+    Admin view: Allow to edit the default slots of an event
+    """
     template_name = "admin/AKModel/default_slot_editor.html"
     form_class = DefaultSlotEditorForm
     title = _("Edit Default Slots")
@@ -149,13 +190,14 @@ class DefaultSlotEditorView(EventSlugMixin, IntermediateAdminView):
 
         previous_slot_ids = set(s.id for s in self.event.defaultslot_set.all())
 
+        # Loop over inputs and update or add slots
         for slot in default_slots_raw:
-            start = parse_datetime(slot["start"]).astimezone(tz)
-            end = parse_datetime(slot["end"]).astimezone(tz)
+            start = parse_datetime(slot["start"]).replace(tzinfo=tz)
+            end = parse_datetime(slot["end"]).replace(tzinfo=tz)
 
             if slot["id"] != '':
-                id = int(slot["id"])
-                if id not in previous_slot_ids:
+                slot_id = int(slot["id"])
+                if slot_id not in previous_slot_ids:
                     # Make sure only slots (currently) belonging to this event are edited
                     # (user did not manipulate IDs and slots have not been deleted in another session in the meantime)
                     messages.add_message(
@@ -166,8 +208,8 @@ class DefaultSlotEditorView(EventSlugMixin, IntermediateAdminView):
                     )
                 else:
                     # Update existing entries
-                    previous_slot_ids.remove(id)
-                    original_slot = DefaultSlot.objects.get(id=id)
+                    previous_slot_ids.remove(slot_id)
+                    original_slot = DefaultSlot.objects.get(id=slot_id)
                     if original_slot.start != start or original_slot.end != end:
                         original_slot.start = start
                         original_slot.end = end
@@ -187,6 +229,7 @@ class DefaultSlotEditorView(EventSlugMixin, IntermediateAdminView):
         for d_id in previous_slot_ids:
             DefaultSlot.objects.get(id=d_id).delete()
 
+        # Inform user about changes performed
         if created_count + updated_count + deleted_count > 0:
             messages.add_message(
                 self.request,
@@ -195,3 +238,38 @@ class DefaultSlotEditorView(EventSlugMixin, IntermediateAdminView):
                 .format(u=str(updated_count), c=str(created_count), d=str(deleted_count))
             )
         return super().form_valid(form)
+
+
+class AKsByUserView(AdminViewMixin, EventSlugMixin, DetailView):
+    """
+    View: Show all AKs of a given user
+    """
+    model = AKOwner
+    context_object_name = 'owner'
+    template_name = "admin/AKModel/aks_by_user.html"
+
+
+class AKScheduleJSONImportView(EventSlugMixin, IntermediateAdminView):
+    """
+    View: Import an AK schedule from a json file that can be pasted into this view.
+    """
+    template_name = "admin/AKModel/import_json.html"
+    form_class = JSONScheduleImportForm
+    title = _("AK Schedule JSON Import")
+
+    def form_valid(self, form):
+        try:
+            number_of_slots_changed = self.event.schedule_from_json(form.cleaned_data["data"])
+            messages.add_message(
+                self.request,
+                messages.SUCCESS,
+                _("Successfully imported {n} slot(s)").format(n=number_of_slots_changed)
+            )
+        except ValueError as ex:
+            messages.add_message(
+                self.request,
+                messages.ERROR,
+                _("Importing an AK schedule failed! Reason: ") + str(ex),
+            )
+
+        return redirect("admin:event_status", self.event.slug)

AKModel/views/room.py

@@ -8,12 +8,16 @@ from django.urls import reverse_lazy
 from django.utils.translation import gettext_lazy as _
 from django.views.generic import CreateView
 
+from AKModel.availability.models import Availability
 from AKModel.forms import RoomForm, RoomBatchCreationForm
 from AKModel.metaviews.admin import AdminViewMixin, EventSlugMixin, IntermediateAdminView
 from AKModel.models import Room
 
 
 class RoomCreationView(AdminViewMixin, CreateView):
+    """
+    Admin view: Create a room
+    """
     form_class = RoomForm
     template_name = 'admin/AKModel/room_create.html'
 
@@ -21,52 +25,77 @@ class RoomCreationView(AdminViewMixin, CreateView):
         print(self.request.POST['save_action'])
         if self.request.POST['save_action'] == 'save_add_another':
             return reverse_lazy('admin:room-new')
-        elif self.request.POST['save_action'] == 'save_continue':
+        if self.request.POST['save_action'] == 'save_continue':
             return reverse_lazy('admin:AKModel_room_change', kwargs={'object_id': self.room.pk})
-        else:
-            return reverse_lazy('admin:AKModel_room_changelist')
+        return reverse_lazy('admin:AKModel_room_changelist')
 
     def form_valid(self, form):
-        self.room = form.save()
+        self.room = form.save()  # pylint: disable=attribute-defined-outside-init
+
+        # translatable string with placeholders, no f-string possible
+        # pylint: disable=consider-using-f-string
         messages.success(self.request, _("Created Room '%(room)s'" % {'room': self.room}))
+
         return HttpResponseRedirect(self.get_success_url())
 
 
 class RoomBatchCreationView(EventSlugMixin, IntermediateAdminView):
+    """
+    Admin action: Allow to create rooms in batch by inputing a CSV-formatted list of room details into a textbox
+
+    This offers the input form, supports creation of virtual rooms if AKOnline is active, too,
+    and users can specify that default availabilities (from event start to end) should be created for the rooms
+    automatically
+    """
     form_class = RoomBatchCreationForm
     title = _("Import Rooms from CSV")
 
     def get_success_url(self):
-        return reverse_lazy('admin:event_status', kwargs={'slug': self.event.slug})
+        return reverse_lazy('admin:event_status', kwargs={'event_slug': self.event.slug})
 
     def form_valid(self, form):
         virtual_rooms_support = False
+        create_default_availabilities = form.cleaned_data["create_default_availabilities"]
         created_count = 0
 
         rooms_raw_dict: csv.DictReader = form.cleaned_data["rooms"]
 
+        # Prepare creation of virtual rooms if there is information (an URL) in the data and the AKOnline app is active
         if apps.is_installed("AKOnline") and "url" in rooms_raw_dict.fieldnames:
             virtual_rooms_support = True
+            # pylint: disable=import-outside-toplevel
             from AKOnline.models import VirtualRoom
 
+        # Loop over all inputs
         for raw_room in rooms_raw_dict:
+            # Gather the relevant information (most fields can be empty)
             name = raw_room["name"]
             location = raw_room["location"] if "location" in rooms_raw_dict.fieldnames else ""
             capacity = raw_room["capacity"] if "capacity" in rooms_raw_dict.fieldnames else -1
 
             try:
+                # Try to create a room (catches cases where the room name contains keywords or symbols that the
+                # database cannot handle (.e.g., special UTF-8 characters)
                 r = Room.objects.create(name=name,
                                     location=location,
                                     capacity=capacity,
                                     event=self.event)
+
+                # and if necessary an associated virtual room, too
                 if virtual_rooms_support and raw_room["url"] != "":
                     VirtualRoom.objects.create(room=r,
                                                url=raw_room["url"])
+
+                # If user requested default availabilities, create them
+                if create_default_availabilities:
+                    a = Availability.with_event_length(event=self.event, room=r)
+                    a.save()
                 created_count += 1
             except django.db.Error as e:
                 messages.add_message(self.request, messages.WARNING,
                                      _("Could not import room {name}: {e}").format(name=name, e=str(e)))
 
+        # Inform the user about the rooms created
         if created_count > 0:
             messages.add_message(self.request, messages.SUCCESS,
                                  _("Imported {count} room(s)").format(count=created_count))

AKModel/views/status.py

 from django.apps import apps
 from django.urls import reverse_lazy
-from django.utils.html import format_html
 from django.utils.translation import gettext_lazy as _
 
 from AKModel.metaviews import status_manager
-from AKModel.metaviews.admin import EventSlugMixin, AdminViewMixin
+from AKModel.metaviews.admin import EventSlugMixin
 from AKModel.metaviews.status import TemplateStatusWidget, StatusView
 
 
 @status_manager.register(name="event_overview")
 class EventOverviewWidget(TemplateStatusWidget):
+    """
+    Status page widget: Event overview
+    """
     required_context_type = "event"
     title = _("Overview")
     template_name = "admin/AKModel/status/event_overview.html"
@@ -20,6 +22,12 @@ class EventOverviewWidget(TemplateStatusWidget):
 
 @status_manager.register(name="event_categories")
 class EventCategoriesWidget(TemplateStatusWidget):
+    """
+    Status page widget: Category information
+
+    Show all categories of the event together with the number of AKs belonging to this category.
+    Offers an action to add a new category.
+    """
     required_context_type = "event"
     title = _("Categories")
     template_name = "admin/AKModel/status/event_categories.html"
@@ -31,7 +39,8 @@ class EventCategoriesWidget(TemplateStatusWidget):
     ]
 
     def render_title(self, context: {}) -> str:
-        self.category_count = context['event'].akcategory_set.count()
+        # Store category count as instance variable for re-use in body
+        self.category_count = context['event'].akcategory_set.count()  # pylint: disable=attribute-defined-outside-init
         return f"{super().render_title(context)} ({self.category_count})"
 
     def render_status(self, context: {}) -> str:
@@ -40,6 +49,12 @@ class EventCategoriesWidget(TemplateStatusWidget):
 
 @status_manager.register(name="event_rooms")
 class EventRoomsWidget(TemplateStatusWidget):
+    """
+    Status page widget: Category information
+
+    Show all rooms of the event.
+    Offers actions to add a single new room as well as for batch creation.
+    """
     required_context_type = "event"
     title = _("Rooms")
     template_name = "admin/AKModel/status/event_rooms.html"
@@ -51,7 +66,8 @@ class EventRoomsWidget(TemplateStatusWidget):
     ]
 
     def render_title(self, context: {}) -> str:
-        self.room_count = context['event'].room_set.count()
+        # Store room count as instance variable for re-use in body
+        self.room_count = context['event'].room_set.count()  # pylint: disable=attribute-defined-outside-init
         return f"{super().render_title(context)} ({self.room_count})"
 
     def render_status(self, context: {}) -> str:
@@ -59,10 +75,16 @@ class EventRoomsWidget(TemplateStatusWidget):
 
     def render_actions(self, context: {}) -> list[dict]:
         actions = super().render_actions(context)
+        # Action has to be added here since it depends on the event for URL building
+        import_room_url = reverse_lazy("admin:room-import", kwargs={"event_slug": context["event"].slug})
+        for action in actions:
+            if action["url"] == import_room_url:
+                return actions
+
         actions.append(
             {
                 "text": _("Import Rooms from CSV"),
-                "url": reverse_lazy("admin:room-import", kwargs={"event_slug": context["event"].slug}),
+                "url": import_room_url,
             }
         )
         return actions
@@ -70,6 +92,12 @@ class EventRoomsWidget(TemplateStatusWidget):
 
 @status_manager.register(name="event_aks")
 class EventAKsWidget(TemplateStatusWidget):
+    """
+    Status page widget: AK information
+
+    Show information about the AKs of this event.
+    Offers a long list of AK-related actions and also scheduling actions of AKScheduling is active
+    """
     required_context_type = "event"
     title = _("AKs")
     template_name = "admin/AKModel/status/event_aks.html"
@@ -88,22 +116,19 @@ class EventAKsWidget(TemplateStatusWidget):
         ]
         if apps.is_installed("AKScheduling"):
             actions.extend([
-                {
-                    "text": format_html('{} <span class="badge bg-secondary">{}</span>',
-                                        _("Constraint Violations"),
-                                        context["event"].constraintviolation_set.count()),
-                    "url": reverse_lazy("admin:constraint-violations", kwargs={"slug": context["event"].slug}),
-                },
                 {
                     "text": _("AKs requiring special attention"),
                     "url": reverse_lazy("admin:special-attention", kwargs={"slug": context["event"].slug}),
                 },
-                {
+            ])
+            if context["event"].ak_set.count() > 0:
+                actions.append({
                     "text": _("Enter Interest"),
                     "url": reverse_lazy("admin:enter-interest",
-                            kwargs={"event_slug": context["event"].slug, "pk": context["event"].ak_set.all().first().pk}),
-                },
-            ])
+                                        kwargs={"event_slug": context["event"].slug,
+                                                "pk": context["event"].ak_set.all().first().pk}
+                                        ),
+                })
         actions.extend([
                 {
                     "text": _("Edit Default Slots"),
@@ -113,10 +138,18 @@ class EventAKsWidget(TemplateStatusWidget):
                     "text": _("Manage ak tracks"),
                     "url": reverse_lazy("admin:tracks_manage", kwargs={"event_slug": context["event"].slug}),
                 },
+                {
+                    "text": _("Import AK schedule from JSON"),
+                    "url": reverse_lazy("admin:ak_schedule_json_import", kwargs={"event_slug": context["event"].slug}),
+                },
                 {
                     "text": _("Export AKs as CSV"),
                     "url": reverse_lazy("admin:ak_csv_export", kwargs={"event_slug": context["event"].slug}),
                 },
+                {
+                    "text": _("Export AKs as JSON"),
+                    "url": reverse_lazy("admin:ak_json_export", kwargs={"event_slug": context["event"].slug}),
+                },
                 {
                     "text": _("Export AKs for Wiki"),
                     "url": reverse_lazy("admin:ak_wiki_export", kwargs={"slug": context["event"].slug}),
@@ -132,11 +165,19 @@ class EventAKsWidget(TemplateStatusWidget):
 
 @status_manager.register(name="event_requirements")
 class EventRequirementsWidget(TemplateStatusWidget):
+    """
+    Status page widget: Requirement information information
+
+    Show information about the requirements of this event.
+    Offers actions to add new requirements or to get a list of AKs having a given requirement.
+    """
     required_context_type = "event"
     title = _("Requirements")
     template_name = "admin/AKModel/status/event_requirements.html"
 
     def render_title(self, context: {}) -> str:
+        # Store requirements count as instance variable for re-use in body
+        # pylint: disable=attribute-defined-outside-init
         self.requirements_count = context['event'].akrequirement_set.count()
         return f"{super().render_title(context)} ({self.requirements_count})"
 
@@ -154,6 +195,9 @@ class EventRequirementsWidget(TemplateStatusWidget):
 
 
 class EventStatusView(EventSlugMixin, StatusView):
+    """
+    View: Show a status dashboard for the given event
+    """
     title = _("Event Status")
     provided_context_type = "event"
 

AKOnline/admin.py

@@ -5,6 +5,9 @@ from AKOnline.models import VirtualRoom
 
 @admin.register(VirtualRoom)
 class VirtualRoomAdmin(admin.ModelAdmin):
+    """
+    Admin interface for virtual room model
+    """
     model = VirtualRoom
     list_display = ['room', 'event', 'url']
     list_filter = ['room__event']

AKOnline/apps.py

@@ -2,4 +2,7 @@ from django.apps import AppConfig
 
 
 class AkonlineConfig(AppConfig):
+    """
+    App configuration (default -- only to set the app name)
+    """
     name = 'AKOnline'

AKOnline/forms.py

@@ -6,23 +6,38 @@ from AKOnline.models import VirtualRoom
 
 
 class VirtualRoomForm(ModelForm):
+    """
+    Form to create a virtual room
+
+    Should be used as part of a multi form (see :class:`RoomWithVirtualForm` below)
+    """
     class Meta:
         model = VirtualRoom
-        exclude = ['room']
+        # Show all fields except for room
+        exclude = ['room'] #pylint: disable=modelform-uses-exclude
 
     def __init__(self, *args, **kwargs):
-        super(VirtualRoomForm, self).__init__(*args, **kwargs)
+        super().__init__(*args, **kwargs)
+        # Make the URL field optional to allow submitting the multi form without creating a virtual room
         self.fields['url'].required = False
 
 
 class RoomWithVirtualForm(MultiModelForm):
+    """
+    Combined form to create rooms and optionally virtual rooms
+
+    Multi-Form that combines a :class:`RoomForm` (from AKModel) and a :class:`VirtualRoomForm` (see above).
+
+    The form will always create a room on valid input
+    and may additionally create a virtual room if the url field of the virtual room form part is set.
+    """
     form_classes = {
         'room': RoomForm,
         'virtual': VirtualRoomForm
     }
 
     def save(self, commit=True):
-        objects = super(RoomWithVirtualForm, self).save(commit=False)
+        objects = super().save(commit=False)
 
         if commit:
             room = objects['room']