From e2cd9edc257cd4d20f8b24bb2643f692078e7212 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Benjamin=20H=C3=A4ttasch?=
 <benjamin.haettasch@fachschaft.informatik.tu-darmstadt.de>
Date: Sat, 15 Oct 2022 12:58:15 +0200
Subject: [PATCH] Introduce timestamp for plan publishing and use for color
 coding

This mostly implements #159
Introduce a new field that denotes the timestamp when the plan was published
Introduce admin actions to publish and unpublish the plan and set that timestamp accordingly
Prevent other means to change visibility of the plan
Use that timestamp to only highlight recent changes when they occurred after the plan was already published
---
 AKModel/admin.py                             |  20 +-
 AKModel/forms.py                             |   1 +
 AKModel/locale/de_DE/LC_MESSAGES/django.po   | 338 ++++++++++---------
 AKModel/migrations/0053_plan_published_at.py |  18 +
 AKModel/models.py                            |   2 +
 AKPlan/templatetags/tags_AKPlan.py           |   5 +
 6 files changed, 223 insertions(+), 161 deletions(-)
 create mode 100644 AKModel/migrations/0053_plan_published_at.py

diff --git a/AKModel/admin.py b/AKModel/admin.py
index ae8da12f..39fc678d 100644
--- a/AKModel/admin.py
+++ b/AKModel/admin.py
@@ -1,8 +1,9 @@
 from django import forms
 from django.apps import apps
-from django.contrib import admin
-from django.contrib.admin import SimpleListFilter, RelatedFieldListFilter
+from django.contrib import admin, messages
+from django.contrib.admin import SimpleListFilter, RelatedFieldListFilter, action
 from django.db.models import Count, F
+from django.db.models.functions import Now
 from django.shortcuts import render, redirect
 from django.urls import reverse_lazy
 from django.utils import timezone
@@ -31,11 +32,12 @@ class EventRelatedFieldListFilter(RelatedFieldListFilter):
 @admin.register(Event)
 class EventAdmin(admin.ModelAdmin):
     model = Event
-    list_display = ['name', 'status_url', 'place', 'start', 'end', 'active']
+    list_display = ['name', 'status_url', 'place', 'start', 'end', 'active', 'plan_hidden']
     list_filter = ['active']
     list_editable = ['active']
     ordering = ['-start']
-    readonly_fields = ['status_url']
+    readonly_fields = ['status_url', 'plan_hidden', 'plan_published_at']
+    actions = ['publish', 'unpublish']
 
     def add_view(self, request, form_url='', extra_context=None):
         # Always use wizard to create new events (the built-in form wouldn't work anyways since the timezone cannot
@@ -62,6 +64,16 @@ class EventAdmin(admin.ModelAdmin):
         timezone.activate(obj.timezone)
         return super().get_form(request, obj, change, **kwargs)
 
+    @action(description=_('Publish plan'))
+    def publish(self, request, queryset):
+        queryset.update(plan_published_at=Now(), plan_hidden=False)
+        self.message_user(request, _('Plan published'), messages.SUCCESS)
+
+    @action(description=_('Unpublish plan'))
+    def unpublish(self, request, queryset):
+        queryset.update(plan_published_at=None, plan_hidden=True)
+        self.message_user(request, _('Plan unpublished'), messages.SUCCESS)
+
 
 @admin.register(AKOwner)
 class AKOwnerAdmin(admin.ModelAdmin):
diff --git a/AKModel/forms.py b/AKModel/forms.py
index 0f897cd5..e756c611 100644
--- a/AKModel/forms.py
+++ b/AKModel/forms.py
@@ -29,6 +29,7 @@ class NewEventWizardSettingsForm(forms.ModelForm):
             'start': DateTimePickerInput(options={"format": "YYYY-MM-DD HH:mm"}),
             'end': DateTimePickerInput(options={"format": "YYYY-MM-DD HH:mm"}),
             'reso_deadline': DateTimePickerInput(options={"format": "YYYY-MM-DD HH:mm"}),
+            'plan_hidden': forms.HiddenInput(),
         }
 
 
diff --git a/AKModel/locale/de_DE/LC_MESSAGES/django.po b/AKModel/locale/de_DE/LC_MESSAGES/django.po
index 6e3bc74d..3cb74859 100644
--- a/AKModel/locale/de_DE/LC_MESSAGES/django.po
+++ b/AKModel/locale/de_DE/LC_MESSAGES/django.po
@@ -2,7 +2,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2022-08-17 22:41+0200\n"
+"POT-Creation-Date: 2022-10-15 12:52+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -11,7 +11,7 @@ msgstr ""
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 
-#: .\AKModel\admin.py:56 .\AKModel\admin.py:58
+#: .\AKModel\admin.py:58 .\AKModel\admin.py:60
 #: .\AKModel\templates\admin\AKModel\event_wizard\activate.html:32
 #: .\AKModel\templates\admin\AKModel\event_wizard\created_prepare_import.html:48
 #: .\AKModel\templates\admin\AKModel\event_wizard\finish.html:21
@@ -21,23 +21,39 @@ msgstr ""
 msgid "Status"
 msgstr "Status"
 
-#: .\AKModel\admin.py:132
+#: .\AKModel\admin.py:67
+msgid "Publish plan"
+msgstr "Plan veröffentlichen"
+
+#: .\AKModel\admin.py:70
+msgid "Plan published"
+msgstr "Plan veröffentlicht"
+
+#: .\AKModel\admin.py:72
+msgid "Unpublish plan"
+msgstr "Plan verbergen"
+
+#: .\AKModel\admin.py:75
+msgid "Plan unpublished"
+msgstr "Plan verborgen"
+
+#: .\AKModel\admin.py:144
 msgid "Wish"
 msgstr "AK-Wunsch"
 
-#: .\AKModel\admin.py:138
+#: .\AKModel\admin.py:150
 msgid "Is wish"
 msgstr "Ist ein Wunsch"
 
-#: .\AKModel\admin.py:139
+#: .\AKModel\admin.py:151
 msgid "Is not a wish"
 msgstr "Ist kein Wunsch"
 
-#: .\AKModel\admin.py:185
+#: .\AKModel\admin.py:197
 msgid "Export to wiki syntax"
 msgstr "In Wiki-Syntax exportieren"
 
-#: .\AKModel\admin.py:279
+#: .\AKModel\admin.py:291
 msgid "AK Details"
 msgstr "AK-Details"
 
@@ -65,17 +81,17 @@ msgstr "Die eingegebene Verfügbarkeit enthält ein ungültiges Datum."
 msgid "Please fill in your availabilities!"
 msgstr "Bitte Verfügbarkeiten eintragen!"
 
-#: .\AKModel\availability\models.py:38 .\AKModel\models.py:53
-#: .\AKModel\models.py:117 .\AKModel\models.py:172 .\AKModel\models.py:191
-#: .\AKModel\models.py:223 .\AKModel\models.py:277 .\AKModel\models.py:343
-#: .\AKModel\models.py:376 .\AKModel\models.py:447 .\AKModel\models.py:488
+#: .\AKModel\availability\models.py:38 .\AKModel\models.py:55
+#: .\AKModel\models.py:119 .\AKModel\models.py:174 .\AKModel\models.py:193
+#: .\AKModel\models.py:225 .\AKModel\models.py:279 .\AKModel\models.py:345
+#: .\AKModel\models.py:378 .\AKModel\models.py:449 .\AKModel\models.py:490
 msgid "Event"
 msgstr "Event"
 
-#: .\AKModel\availability\models.py:39 .\AKModel\models.py:118
-#: .\AKModel\models.py:173 .\AKModel\models.py:192 .\AKModel\models.py:224
-#: .\AKModel\models.py:278 .\AKModel\models.py:344 .\AKModel\models.py:377
-#: .\AKModel\models.py:448 .\AKModel\models.py:489
+#: .\AKModel\availability\models.py:39 .\AKModel\models.py:120
+#: .\AKModel\models.py:175 .\AKModel\models.py:194 .\AKModel\models.py:226
+#: .\AKModel\models.py:280 .\AKModel\models.py:346 .\AKModel\models.py:379
+#: .\AKModel\models.py:450 .\AKModel\models.py:491
 msgid "Associated event"
 msgstr "Zugehöriges Event"
 
@@ -87,8 +103,8 @@ msgstr "Person"
 msgid "Person whose availability this is"
 msgstr "Person deren Verfügbarkeit hier abgebildet wird"
 
-#: .\AKModel\availability\models.py:56 .\AKModel\models.py:347
-#: .\AKModel\models.py:366 .\AKModel\models.py:497
+#: .\AKModel\availability\models.py:56 .\AKModel\models.py:349
+#: .\AKModel\models.py:368 .\AKModel\models.py:499
 msgid "Room"
 msgstr "Raum"
 
@@ -96,8 +112,8 @@ msgstr "Raum"
 msgid "Room whose availability this is"
 msgstr "Raum dessen Verfügbarkeit hier abgebildet wird"
 
-#: .\AKModel\availability\models.py:65 .\AKModel\models.py:283
-#: .\AKModel\models.py:365 .\AKModel\models.py:442
+#: .\AKModel\availability\models.py:65 .\AKModel\models.py:285
+#: .\AKModel\models.py:367 .\AKModel\models.py:444
 msgid "AK"
 msgstr "AK"
 
@@ -105,8 +121,8 @@ msgstr "AK"
 msgid "AK whose availability this is"
 msgstr "Verfügbarkeiten"
 
-#: .\AKModel\availability\models.py:74 .\AKModel\models.py:176
-#: .\AKModel\models.py:503
+#: .\AKModel\availability\models.py:74 .\AKModel\models.py:178
+#: .\AKModel\models.py:505
 msgid "AK Category"
 msgstr "AK-Kategorie"
 
@@ -118,26 +134,26 @@ msgstr "AK-Kategorie, deren Verfügbarkeit hier abgebildet wird"
 msgid "Availabilities"
 msgstr "Verfügbarkeiten"
 
-#: .\AKModel\forms.py:38
+#: .\AKModel\forms.py:39
 msgid "Copy ak requirements and ak categories of existing event"
 msgstr "AK-Anforderungen und AK-Kategorien eines existierenden Events kopieren"
 
-#: .\AKModel\forms.py:39
+#: .\AKModel\forms.py:40
 msgid "You can choose what to copy in the next step"
 msgstr ""
 "Im nächsten Schritt kann ausgewählt werden, was genau kopiert werden soll"
 
-#: .\AKModel\forms.py:47
+#: .\AKModel\forms.py:48
 msgid "Copy ak categories"
 msgstr "AK-Kategorien kopieren"
 
-#: .\AKModel\forms.py:54
+#: .\AKModel\forms.py:55
 msgid "Copy ak requirements"
 msgstr "AK-Anforderungen kopieren"
 
-#: .\AKModel\models.py:17 .\AKModel\models.py:164 .\AKModel\models.py:188
-#: .\AKModel\models.py:207 .\AKModel\models.py:221 .\AKModel\models.py:239
-#: .\AKModel\models.py:335
+#: .\AKModel\models.py:17 .\AKModel\models.py:166 .\AKModel\models.py:190
+#: .\AKModel\models.py:209 .\AKModel\models.py:223 .\AKModel\models.py:241
+#: .\AKModel\models.py:337
 msgid "Name"
 msgstr "Name"
 
@@ -235,31 +251,39 @@ msgstr "Plan verborgen"
 msgid "Hides plan for non-staff users"
 msgstr "Verbirgt den Plan für Nutzer*innen ohne erweiterte Rechte"
 
+#: .\AKModel\models.py:42
+msgid "Plan published at"
+msgstr "Plan veröffentlicht am/um"
+
 #: .\AKModel\models.py:43
+msgid "Timestamp at which the plan was published"
+msgstr "Zeitpunkt, zu dem der Plan veröffentlicht wurde"
+
+#: .\AKModel\models.py:45
 msgid "Base URL"
 msgstr "URL-Prefix"
 
-#: .\AKModel\models.py:43
+#: .\AKModel\models.py:45
 msgid "Prefix for wiki link construction"
 msgstr "Prefix für die automatische Generierung von Wiki-Links"
 
-#: .\AKModel\models.py:44
+#: .\AKModel\models.py:46
 msgid "Wiki Export Template Name"
 msgstr "Wiki-Export Templatename"
 
-#: .\AKModel\models.py:45
+#: .\AKModel\models.py:47
 msgid "Default Slot Length"
 msgstr "Standardslotlänge"
 
-#: .\AKModel\models.py:46
+#: .\AKModel\models.py:48
 msgid "Default length in hours that is assumed for AKs in this event."
 msgstr "Standardlänge von Slots (in Stunden) für dieses Event"
 
-#: .\AKModel\models.py:48
+#: .\AKModel\models.py:50
 msgid "Contact email address"
 msgstr "E-Mail Kontaktadresse"
 
-#: .\AKModel\models.py:50
+#: .\AKModel\models.py:52
 msgid ""
 "An email address that is displayed on every page and can be used for all "
 "kinds of questions"
@@ -267,75 +291,75 @@ msgstr ""
 "Eine Mailadresse die auf jeder Seite angezeigt wird und für alle Arten von "
 "Fragen genutzt werden kann"
 
-#: .\AKModel\models.py:54
+#: .\AKModel\models.py:56
 msgid "Events"
 msgstr "Events"
 
-#: .\AKModel\models.py:112
+#: .\AKModel\models.py:114
 msgid "Nickname"
 msgstr "Spitzname"
 
-#: .\AKModel\models.py:112
+#: .\AKModel\models.py:114
 msgid "Name to identify an AK owner by"
 msgstr "Name, durch den eine AK-Leitung identifiziert wird"
 
-#: .\AKModel\models.py:113
+#: .\AKModel\models.py:115
 msgid "Slug"
 msgstr "Slug"
 
-#: .\AKModel\models.py:113
+#: .\AKModel\models.py:115
 msgid "Slug for URL generation"
 msgstr "Slug für URL-Generierung"
 
-#: .\AKModel\models.py:114
+#: .\AKModel\models.py:116
 msgid "Institution"
 msgstr "Instutution"
 
-#: .\AKModel\models.py:114
+#: .\AKModel\models.py:116
 msgid "Uni etc."
 msgstr "Universität o.ä."
 
-#: .\AKModel\models.py:115 .\AKModel\models.py:248
+#: .\AKModel\models.py:117 .\AKModel\models.py:250
 msgid "Web Link"
 msgstr "Internet Link"
 
-#: .\AKModel\models.py:115
+#: .\AKModel\models.py:117
 msgid "Link to Homepage"
 msgstr "Link zu Homepage oder Webseite"
 
-#: .\AKModel\models.py:121 .\AKModel\models.py:496
+#: .\AKModel\models.py:123 .\AKModel\models.py:498
 msgid "AK Owner"
 msgstr "AK-Leitung"
 
-#: .\AKModel\models.py:122
+#: .\AKModel\models.py:124
 msgid "AK Owners"
 msgstr "AK-Leitungen"
 
-#: .\AKModel\models.py:164
+#: .\AKModel\models.py:166
 msgid "Name of the AK Category"
 msgstr "Name der AK-Kategorie"
 
-#: .\AKModel\models.py:165 .\AKModel\models.py:189
+#: .\AKModel\models.py:167 .\AKModel\models.py:191
 msgid "Color"
 msgstr "Farbe"
 
-#: .\AKModel\models.py:165 .\AKModel\models.py:189
+#: .\AKModel\models.py:167 .\AKModel\models.py:191
 msgid "Color for displaying"
 msgstr "Farbe für die Anzeige"
 
-#: .\AKModel\models.py:166 .\AKModel\models.py:242
+#: .\AKModel\models.py:168 .\AKModel\models.py:244
 msgid "Description"
 msgstr "Beschreibung"
 
-#: .\AKModel\models.py:167
+#: .\AKModel\models.py:169
 msgid "Short description of this AK Category"
 msgstr "Beschreibung der AK-Kategorie"
 
-#: .\AKModel\models.py:168
+#: .\AKModel\models.py:170
 msgid "Present by default"
 msgstr "Defaultmäßig präsentieren"
 
-#: .\AKModel\models.py:170
+#: .\AKModel\models.py:172
 msgid ""
 "Present AKs of this category by default if AK owner did not specify whether "
 "this AK should be presented?"
@@ -343,152 +367,152 @@ msgstr ""
 "AKs dieser Kategorie standardmäßig vorstellen, wenn die Leitungen das für "
 "ihren AK nicht explizit spezifiziert haben?"
 
-#: .\AKModel\models.py:177
+#: .\AKModel\models.py:179
 msgid "AK Categories"
 msgstr "AK-Kategorien"
 
-#: .\AKModel\models.py:188
+#: .\AKModel\models.py:190
 msgid "Name of the AK Track"
 msgstr "Name des AK-Tracks"
 
-#: .\AKModel\models.py:195
+#: .\AKModel\models.py:197
 msgid "AK Track"
 msgstr "AK-Track"
 
-#: .\AKModel\models.py:196
+#: .\AKModel\models.py:198
 msgid "AK Tracks"
 msgstr "AK-Tracks"
 
-#: .\AKModel\models.py:207
+#: .\AKModel\models.py:209
 msgid "Name of the AK Tag"
 msgstr "Name das AK-Tags"
 
-#: .\AKModel\models.py:210
+#: .\AKModel\models.py:212
 msgid "AK Tag"
 msgstr "AK-Tag"
 
-#: .\AKModel\models.py:211
+#: .\AKModel\models.py:213
 msgid "AK Tags"
 msgstr "AK-Tags"
 
-#: .\AKModel\models.py:221
+#: .\AKModel\models.py:223
 msgid "Name of the Requirement"
 msgstr "Name der Anforderung"
 
-#: .\AKModel\models.py:227 .\AKModel\models.py:500
+#: .\AKModel\models.py:229 .\AKModel\models.py:502
 msgid "AK Requirement"
 msgstr "AK-Anforderung"
 
-#: .\AKModel\models.py:228
+#: .\AKModel\models.py:230
 msgid "AK Requirements"
 msgstr "AK-Anforderungen"
 
-#: .\AKModel\models.py:239
+#: .\AKModel\models.py:241
 msgid "Name of the AK"
 msgstr "Name des AKs"
 
-#: .\AKModel\models.py:240
+#: .\AKModel\models.py:242
 msgid "Short Name"
 msgstr "Kurzer Name"
 
-#: .\AKModel\models.py:241
+#: .\AKModel\models.py:243
 msgid "Name displayed in the schedule"
 msgstr "Name zur Anzeige im AK-Plan"
 
-#: .\AKModel\models.py:242
+#: .\AKModel\models.py:244
 msgid "Description of the AK"
 msgstr "Beschreibung des AKs"
 
-#: .\AKModel\models.py:244
+#: .\AKModel\models.py:246
 msgid "Owners"
 msgstr "Leitungen"
 
-#: .\AKModel\models.py:245
+#: .\AKModel\models.py:247
 msgid "Those organizing the AK"
 msgstr "Menschen, die den AK organisieren und halten"
 
-#: .\AKModel\models.py:248
+#: .\AKModel\models.py:250
 msgid "Link to wiki page"
 msgstr "Link zur Wiki Seite"
 
-#: .\AKModel\models.py:249
+#: .\AKModel\models.py:251
 msgid "Protocol Link"
 msgstr "Protokolllink"
 
-#: .\AKModel\models.py:249
+#: .\AKModel\models.py:251
 msgid "Link to protocol"
 msgstr "Link zum Protokoll"
 
-#: .\AKModel\models.py:251
+#: .\AKModel\models.py:253
 msgid "Category"
 msgstr "Kategorie"
 
-#: .\AKModel\models.py:252
+#: .\AKModel\models.py:254
 msgid "Category of the AK"
 msgstr "Kategorie des AKs"
 
-#: .\AKModel\models.py:253
+#: .\AKModel\models.py:255
 msgid "Tags"
 msgstr "Tags"
 
-#: .\AKModel\models.py:253
+#: .\AKModel\models.py:255
 msgid "Tags provided by owners"
 msgstr "Tags, die durch die AK-Leitung vergeben wurden"
 
-#: .\AKModel\models.py:254
+#: .\AKModel\models.py:256
 msgid "Track"
 msgstr "Track"
 
-#: .\AKModel\models.py:255
+#: .\AKModel\models.py:257
 msgid "Track the AK belongs to"
 msgstr "Track zu dem der AK gehört"
 
-#: .\AKModel\models.py:257
+#: .\AKModel\models.py:259
 msgid "Resolution Intention"
 msgstr "Resolutionsabsicht"
 
-#: .\AKModel\models.py:258
+#: .\AKModel\models.py:260
 msgid "Intends to submit a resolution"
 msgstr "Beabsichtigt eine Resolution einzureichen"
 
-#: .\AKModel\models.py:259
+#: .\AKModel\models.py:261
 msgid "Present this AK"
 msgstr "AK präsentieren"
 
-#: .\AKModel\models.py:260
+#: .\AKModel\models.py:262
 msgid "Present results of this AK"
 msgstr "Die Ergebnisse dieses AKs vorstellen"
 
-#: .\AKModel\models.py:262 .\AKModel\templates\admin\AKModel\status.html:97
+#: .\AKModel\models.py:264 .\AKModel\templates\admin\AKModel\status.html:97
 msgid "Requirements"
 msgstr "Anforderungen"
 
-#: .\AKModel\models.py:263
+#: .\AKModel\models.py:265
 msgid "AK's Requirements"
 msgstr "Anforderungen des AKs"
 
-#: .\AKModel\models.py:265
+#: .\AKModel\models.py:267
 msgid "Conflicting AKs"
 msgstr "AK-Konflikte"
 
-#: .\AKModel\models.py:266
+#: .\AKModel\models.py:268
 msgid "AKs that conflict and thus must not take place at the same time"
 msgstr ""
 "AKs, die Konflikte haben und deshalb nicht gleichzeitig stattfinden dürfen"
 
-#: .\AKModel\models.py:267
+#: .\AKModel\models.py:269
 msgid "Prerequisite AKs"
 msgstr "Vorausgesetzte AKs"
 
-#: .\AKModel\models.py:268
+#: .\AKModel\models.py:270
 msgid "AKs that should precede this AK in the schedule"
 msgstr "AKs die im AK-Plan vor diesem AK stattfinden müssen"
 
-#: .\AKModel\models.py:270
+#: .\AKModel\models.py:272
 msgid "Organizational Notes"
 msgstr "Notizen zur Organisation"
 
-#: .\AKModel\models.py:271
+#: .\AKModel\models.py:273
 #, fuzzy
 #| msgid ""
 #| "Notes to organizers. These are public. For private notes, please send an "
@@ -502,258 +526,258 @@ msgstr ""
 "Anmerkungen bitte den Button für Direktnachrichten verwenden (nach dem "
 "Anlegen/Bearbeiten)."
 
-#: .\AKModel\models.py:273
+#: .\AKModel\models.py:275
 msgid "Interest"
 msgstr "Interesse"
 
-#: .\AKModel\models.py:273
+#: .\AKModel\models.py:275
 msgid "Expected number of people"
 msgstr "Erwartete Personenzahl"
 
-#: .\AKModel\models.py:274
+#: .\AKModel\models.py:276
 msgid "Interest Counter"
 msgstr "Interessenszähler"
 
-#: .\AKModel\models.py:275
+#: .\AKModel\models.py:277
 msgid "People who have indicated interest online"
 msgstr "Anzahl Personen, die online Interesse bekundet haben"
 
-#: .\AKModel\models.py:284 .\AKModel\models.py:491
+#: .\AKModel\models.py:286 .\AKModel\models.py:493
 #: .\AKModel\templates\admin\AKModel\status.html:49
 #: .\AKModel\templates\admin\AKModel\status.html:56 .\AKModel\views.py:337
 msgid "AKs"
 msgstr "AKs"
 
-#: .\AKModel\models.py:335
+#: .\AKModel\models.py:337
 msgid "Name or number of the room"
 msgstr "Name oder Nummer des Raums"
 
-#: .\AKModel\models.py:336
+#: .\AKModel\models.py:338
 msgid "Location"
 msgstr "Ort"
 
-#: .\AKModel\models.py:337
+#: .\AKModel\models.py:339
 msgid "Name or number of the location"
 msgstr "Name oder Nummer des Ortes"
 
-#: .\AKModel\models.py:338
+#: .\AKModel\models.py:340
 msgid "Capacity"
 msgstr "Kapazität"
 
-#: .\AKModel\models.py:339
+#: .\AKModel\models.py:341
 msgid "Maximum number of people (-1 for unlimited)."
 msgstr "Maximale Personenzahl (-1 wenn unbeschränkt)."
 
-#: .\AKModel\models.py:340
+#: .\AKModel\models.py:342
 msgid "Properties"
 msgstr "Eigenschaften"
 
-#: .\AKModel\models.py:341
+#: .\AKModel\models.py:343
 msgid "AK requirements fulfilled by the room"
 msgstr "AK-Anforderungen, die dieser Raum erfüllt"
 
-#: .\AKModel\models.py:348 .\AKModel\templates\admin\AKModel\status.html:33
+#: .\AKModel\models.py:350 .\AKModel\templates\admin\AKModel\status.html:33
 msgid "Rooms"
 msgstr "Räume"
 
-#: .\AKModel\models.py:365
+#: .\AKModel\models.py:367
 msgid "AK being mapped"
 msgstr "AK, der zugeordnet wird"
 
-#: .\AKModel\models.py:367
+#: .\AKModel\models.py:369
 msgid "Room the AK will take place in"
 msgstr "Raum in dem der AK stattfindet"
 
-#: .\AKModel\models.py:368
+#: .\AKModel\models.py:370
 msgid "Slot Begin"
 msgstr "Beginn des Slots"
 
-#: .\AKModel\models.py:368
+#: .\AKModel\models.py:370
 msgid "Time and date the slot begins"
 msgstr "Zeit und Datum zu der der AK beginnt"
 
-#: .\AKModel\models.py:370
+#: .\AKModel\models.py:372
 msgid "Duration"
 msgstr "Dauer"
 
-#: .\AKModel\models.py:371
+#: .\AKModel\models.py:373
 msgid "Length in hours"
 msgstr "Länge in Stunden"
 
-#: .\AKModel\models.py:373
+#: .\AKModel\models.py:375
 msgid "Scheduling fixed"
 msgstr "Planung fix"
 
-#: .\AKModel\models.py:374
+#: .\AKModel\models.py:376
 msgid "Length and time of this AK should not be changed"
 msgstr "Dauer und Zeit dieses AKs sollten nicht verändert werden"
 
-#: .\AKModel\models.py:379
+#: .\AKModel\models.py:381
 msgid "Last update"
 msgstr "Letzte Aktualisierung"
 
-#: .\AKModel\models.py:382
+#: .\AKModel\models.py:384
 msgid "AK Slot"
 msgstr "AK-Slot"
 
-#: .\AKModel\models.py:383 .\AKModel\models.py:493
+#: .\AKModel\models.py:385 .\AKModel\models.py:495
 msgid "AK Slots"
 msgstr "AK-Slot"
 
-#: .\AKModel\models.py:405 .\AKModel\models.py:414
+#: .\AKModel\models.py:407 .\AKModel\models.py:416
 msgid "Not scheduled yet"
 msgstr "Noch nicht geplant"
 
-#: .\AKModel\models.py:443
+#: .\AKModel\models.py:445
 msgid "AK this message belongs to"
 msgstr "AK zu dem die Nachricht gehört"
 
-#: .\AKModel\models.py:444
+#: .\AKModel\models.py:446
 msgid "Message text"
 msgstr "Nachrichtentext"
 
-#: .\AKModel\models.py:445
+#: .\AKModel\models.py:447
 msgid "Message to the organizers. This is not publicly visible."
 msgstr ""
 "Nachricht an die Organisator*innen. Diese ist nicht öffentlich sichtbar."
 
-#: .\AKModel\models.py:451
+#: .\AKModel\models.py:453
 msgid "AK Orga Message"
 msgstr "AK-Organachricht"
 
-#: .\AKModel\models.py:452
+#: .\AKModel\models.py:454
 msgid "AK Orga Messages"
 msgstr "AK-Organachrichten"
 
-#: .\AKModel\models.py:461
+#: .\AKModel\models.py:463
 msgid "Constraint Violation"
 msgstr "Constraintverletzung"
 
-#: .\AKModel\models.py:462 .\AKModel\templates\admin\AKModel\status.html:79
+#: .\AKModel\models.py:464 .\AKModel\templates\admin\AKModel\status.html:79
 msgid "Constraint Violations"
 msgstr "Constraintverletzungen"
 
-#: .\AKModel\models.py:466
+#: .\AKModel\models.py:468
 msgid "Owner has two parallel slots"
 msgstr "Leitung hat zwei Slots parallel"
 
-#: .\AKModel\models.py:467
+#: .\AKModel\models.py:469
 msgid "AK Slot was scheduled outside the AK's availabilities"
 msgstr "AK Slot wurde außerhalb der Verfügbarkeit des AKs platziert"
 
-#: .\AKModel\models.py:468
+#: .\AKModel\models.py:470
 msgid "Room has two AK slots scheduled at the same time"
 msgstr "Raum hat zwei AK Slots gleichzeitig"
 
-#: .\AKModel\models.py:469
+#: .\AKModel\models.py:471
 msgid "Room does not satisfy the requirement of the scheduled AK"
 msgstr "Room erfüllt die Anforderungen des platzierten AKs nicht"
 
-#: .\AKModel\models.py:470
+#: .\AKModel\models.py:472
 msgid "AK Slot is scheduled at the same time as an AK listed as a conflict"
 msgstr ""
 "AK Slot wurde wurde zur gleichen Zeit wie ein Konflikt des AKs platziert"
 
-#: .\AKModel\models.py:471
+#: .\AKModel\models.py:473
 msgid "AK Slot is scheduled before an AK listed as a prerequisite"
 msgstr "AK Slot wurde vor einem als Voraussetzung gelisteten AK platziert"
 
-#: .\AKModel\models.py:473
+#: .\AKModel\models.py:475
 msgid ""
 "AK Slot for AK with intention to submit a resolution is scheduled after "
 "resolution deadline"
 msgstr ""
 "AK Slot eines AKs mit Resoabsicht wurde nach der Resodeadline platziert"
 
-#: .\AKModel\models.py:474
+#: .\AKModel\models.py:476
 msgid "AK Slot in a category is outside that categories availabilities"
 msgstr "AK Slot wurde außerhalb der Verfügbarkeiten seiner Kategorie"
 
-#: .\AKModel\models.py:475
+#: .\AKModel\models.py:477
 msgid "Two AK Slots for the same AK scheduled at the same time"
 msgstr "Zwei AK Slots eines AKs wurden zur selben Zeit platziert"
 
-#: .\AKModel\models.py:476
+#: .\AKModel\models.py:478
 msgid "Room does not have enough space for interest in scheduled AK Slot"
 msgstr "Room hat nicht genug Platz für das Interesse am geplanten AK-Slot"
 
-#: .\AKModel\models.py:477
+#: .\AKModel\models.py:479
 msgid "AK Slot is scheduled outside the event's availabilities"
 msgstr "AK Slot wurde außerhalb der Verfügbarkeit des Events platziert"
 
-#: .\AKModel\models.py:480
+#: .\AKModel\models.py:482
 msgid "Warning"
 msgstr "Warnung"
 
-#: .\AKModel\models.py:481
+#: .\AKModel\models.py:483
 msgid "Violation"
 msgstr "Verletzung"
 
-#: .\AKModel\models.py:483
+#: .\AKModel\models.py:485
 msgid "Type"
 msgstr "Art"
 
-#: .\AKModel\models.py:484
+#: .\AKModel\models.py:486
 msgid "Type of violation, i.e. what kind of constraint was violated"
 msgstr "Art der Verletzung, gibt an welche Art Constraint verletzt wurde"
 
-#: .\AKModel\models.py:485
+#: .\AKModel\models.py:487
 msgid "Level"
 msgstr "Level"
 
-#: .\AKModel\models.py:486
+#: .\AKModel\models.py:488
 msgid "Severity level of the violation"
 msgstr "Schweregrad der Verletzung"
 
-#: .\AKModel\models.py:492
+#: .\AKModel\models.py:494
 msgid "AK(s) belonging to this constraint"
 msgstr "AK(s), die zu diesem Constraint gehören"
 
-#: .\AKModel\models.py:494
+#: .\AKModel\models.py:496
 msgid "AK Slot(s) belonging to this constraint"
 msgstr "AK Slot(s), die zu diesem Constraint gehören"
 
-#: .\AKModel\models.py:496
+#: .\AKModel\models.py:498
 msgid "AK Owner belonging to this constraint"
 msgstr "AK Leitung(en), die zu diesem Constraint gehören"
 
-#: .\AKModel\models.py:498
+#: .\AKModel\models.py:500
 msgid "Room belonging to this constraint"
 msgstr "Raum, der zu diesem Constraint gehört"
 
-#: .\AKModel\models.py:501
+#: .\AKModel\models.py:503
 msgid "AK Requirement belonging to this constraint"
 msgstr "AK Anforderung, die zu diesem Constraint gehört"
 
-#: .\AKModel\models.py:503
+#: .\AKModel\models.py:505
 msgid "AK Category belonging to this constraint"
 msgstr "AK Kategorie, di zu diesem Constraint gehört"
 
-#: .\AKModel\models.py:505
+#: .\AKModel\models.py:507
 msgid "Comment"
 msgstr "Kommentar"
 
-#: .\AKModel\models.py:505
+#: .\AKModel\models.py:507
 msgid "Comment or further details for this violation"
 msgstr "Kommentar oder weitere Details zu dieser Vereletzung"
 
-#: .\AKModel\models.py:508
+#: .\AKModel\models.py:510
 msgid "Timestamp"
 msgstr "Timestamp"
 
-#: .\AKModel\models.py:508
+#: .\AKModel\models.py:510
 msgid "Time of creation"
 msgstr "Zeitpunkt der ERstellung"
 
-#: .\AKModel\models.py:509
+#: .\AKModel\models.py:511
 msgid "Manually Resolved"
 msgstr "Manuell behoben"
 
-#: .\AKModel\models.py:510
+#: .\AKModel\models.py:512
 msgid "Mark this violation manually as resolved"
 msgstr "Markiere diese Verletzung manuell als behoben"
 
-#: .\AKModel\models.py:537
+#: .\AKModel\models.py:539
 #: .\AKModel\templates\admin\AKModel\requirements_overview.html:27
 msgid "Details"
 msgstr "Details"
@@ -967,15 +991,15 @@ msgstr "Alle Nachrichten löschen"
 msgid "Active Events"
 msgstr "Aktive Events"
 
-#: .\AKModel\templates\admin\login.html:23
+#: .\AKModel\templates\admin\login.html:8
 msgid "Please correct the error below."
 msgstr "Bitte den untenstehenden Fehler korrigieren."
 
-#: .\AKModel\templates\admin\login.html:23
+#: .\AKModel\templates\admin\login.html:8
 msgid "Please correct the errors below."
 msgstr "Bitte die unten stehenden Fehler korrigieren."
 
-#: .\AKModel\templates\admin\login.html:39
+#: .\AKModel\templates\admin\login.html:24
 #, python-format
 msgid ""
 "You are authenticated as %(username)s, but are not authorized to access this "
@@ -984,15 +1008,15 @@ msgstr ""
 "Du bist als %(username)s eingeloggt, aber bist nicht authorisiert, auf diese "
 "Seite zuzugreifen. Möchtest du dich mit einem anderem Account einloggen?"
 
-#: .\AKModel\templates\admin\login.html:59
+#: .\AKModel\templates\admin\login.html:44
 msgid "Forgotten your password or username?"
 msgstr "Passwort oder Username vergessen"
 
-#: .\AKModel\templates\admin\login.html:63
+#: .\AKModel\templates\admin\login.html:48
 msgid "Log in"
 msgstr "Login"
 
-#: .\AKModel\templates\admin\login.html:66
+#: .\AKModel\templates\admin\login.html:51
 msgid "Register"
 msgstr "Registrieren"
 
diff --git a/AKModel/migrations/0053_plan_published_at.py b/AKModel/migrations/0053_plan_published_at.py
new file mode 100644
index 00000000..80e8eb8e
--- /dev/null
+++ b/AKModel/migrations/0053_plan_published_at.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.2.16 on 2022-10-15 10:18
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('AKModel', '0052_history_upgrade'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='event',
+            name='plan_published_at',
+            field=models.DateTimeField(blank=True, help_text='Timestamp at which the plan was published', null=True, verbose_name='Plan published at'),
+        ),
+    ]
diff --git a/AKModel/models.py b/AKModel/models.py
index 7f82cbd6..a9b2089d 100644
--- a/AKModel/models.py
+++ b/AKModel/models.py
@@ -39,6 +39,8 @@ class Event(models.Model):
     active = models.BooleanField(verbose_name=_('Active State'), help_text=_('Marks currently active events'))
     plan_hidden = models.BooleanField(verbose_name=_('Plan Hidden'), help_text=_('Hides plan for non-staff users'),
                                       default=True)
+    plan_published_at = models.DateTimeField(verbose_name=_('Plan published at'), blank=True, null=True,
+                                         help_text=_('Timestamp at which the plan was published'))
 
     base_url = models.URLField(verbose_name=_("Base URL"), help_text=_("Prefix for wiki link construction"), blank=True)
     wiki_export_template_name = models.CharField(verbose_name=_("Wiki Export Template Name"), blank=True, max_length=50)
diff --git a/AKPlan/templatetags/tags_AKPlan.py b/AKPlan/templatetags/tags_AKPlan.py
index c4d5b32b..8b30bfab 100644
--- a/AKPlan/templatetags/tags_AKPlan.py
+++ b/AKPlan/templatetags/tags_AKPlan.py
@@ -11,6 +11,11 @@ register = template.Library()
 
 @register.filter
 def highlight_change_colors(akslot):
+    # Do not highlight in preview mode or when changes occurred before the plan was published
+    if akslot.event.plan_hidden or (akslot.event.plan_published_at is not None
+                                    and akslot.event.plan_published_at > akslot.updated):
+        return akslot.ak.category.color
+
     seconds_since_update = akslot.seconds_since_last_update
 
     # Last change long ago? Use default color
-- 
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