set default duration in AK Submission

add default slot size to Event model
set initial form value to event deafult slot size

AKModel/migrations/0023_event_default_slot.py

+# Generated by Django 2.2.6 on 2019-10-25 13:15
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ('AKModel', '0022_remove_akowner_email'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='event',
+            name='default_slot',
+            field=models.DecimalField(decimal_places=2, default=2,
+                                      help_text='Default length in hours that is assumed for AKs in this event.',
+                                      max_digits=4, verbose_name='Default Slot Length'),
+        ),
+    ]

AKModel/models.py

@@ -20,6 +20,8 @@ class Event(models.Model):
     active = models.BooleanField(verbose_name=_('Active State'), help_text=_('Marks currently active events'))
 
     base_url = models.URLField(verbose_name=_("Base URL"), help_text=_("Prefix for wiki link construction"), blank=True)
+    default_slot = models.DecimalField(max_digits=4, decimal_places=2, default=2, verbose_name='Default Slot Length',
+                                       help_text='Default length in hours that is assumed for AKs in this event.')
 
     class Meta:
         verbose_name = _('Event')
@@ -92,7 +94,8 @@ class AKCategory(models.Model):
     """
     name = models.CharField(max_length=64, unique=True, verbose_name=_('Name'), help_text=_('Name of the AK Category'))
     color = models.CharField(max_length=7, blank=True, verbose_name=_('Color'), help_text=_('Color for displaying'))
-    description = models.TextField(blank=True, verbose_name=_("Description"), help_text=_("Short description of this AK Category"))
+    description = models.TextField(blank=True, verbose_name=_("Description"),
+                                   help_text=_("Short description of this AK Category"))
 
     class Meta:
         verbose_name = _('AK Category')

AKSubmission/forms.py

@@ -108,7 +108,9 @@ class AKSubmissionForm(AKForm):
             widget=forms.Textarea,
             label=_("Duration(s)"),
             help_text=_(
-                "Enter at least one planned duration (in hours). If your AK should have multiple slots, use multiple lines")
+                "Enter at least one planned duration (in hours). If your AK should have multiple slots, use multiple lines"),
+            initial=
+            self.initial.get('event').default_slot
         )