Feature/kak/multiple event destinations#1107

python/cac_tripplanner/destinations/admin.py

@@ -82,7 +82,7 @@ class EventAdmin(ImageCroppingMixin, admin.ModelAdmin):
 
     fields = ('name', 'website_url', 'description', 'image', 'image_raw', 'wide_image',
               'wide_image_raw', 'published', 'priority', 'accessible', 'activities',
-              'start_date', 'end_date', 'destination')
+              'start_date', 'end_date', 'destinations')
     list_display = ('name', 'published', 'priority', )
     actions = ('make_published', 'make_unpublished', )
     ordering = ('name', )

python/cac_tripplanner/destinations/forms.py

@@ -35,9 +35,9 @@ class Meta:
 
     def __init__(self, *args, **kwargs):
         super(EventForm, self).__init__(*args, **kwargs)
-        self.fields['destination'].widget.can_delete_related = False
-        self.fields['destination'].widget.can_add_related = False
-        self.fields['destination'].widget.can_change_related = False
+        self.fields['destinations'].widget.can_delete_related = False
+        self.fields['destinations'].widget.can_add_related = False
+        self.fields['destinations'].widget.can_change_related = False
 
     def clean(self):
         """Validate start date is less than end date"""

python/cac_tripplanner/destinations/migrations/0047_allow_multiple_event_destinations.py

@@ -0,0 +1,48 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.22 on 2019-07-29 18:05
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+def move_event_destinations_to_multiple(apps, schema_editor):
+    """Move event destination to new set of multiple destinations."""
+    Event = apps.get_model('destinations', 'Event')
+    events = Event.objects.all()
+    for event in events:
+        if event.destination:
+            event.destinations.add(event.destination)
+            event.save()
+
+
+def move_event_destinations_to_single(apps, schema_editor):
+    """Move event destination from new set of multiple destinations.
+
+    Use the first destination for the event.
+    """
+    Event = apps.get_model('destinations', 'Event')
+    events = Event.objects.all()
+    for event in events:
+        if event.destinations.count() > 0:
+            event.destination = event.destinations.first()
+            event.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('destinations', '0046_prepopulate_events'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='event',
+            name='destinations',
+            field=models.ManyToManyField(blank=True, to='destinations.Destination'),
+        ),
+        migrations.RunPython(move_event_destinations_to_multiple, move_event_destinations_to_single),
+        migrations.RemoveField(
+            model_name='event',
+            name='destination',
+        ),
+    ]

python/cac_tripplanner/destinations/models.py

@@ -190,7 +190,7 @@ class Meta:
     start_date = models.DateTimeField()
     end_date = models.DateTimeField()
 
-    destination = models.ForeignKey('Destination', on_delete=models.SET_NULL, null=True, blank=True)
+    destinations = models.ManyToManyField('Destination', blank=True)
 
     objects = EventManager()
 

python/cac_tripplanner/destinations/views.py

@@ -257,11 +257,13 @@ def set_event_properties(event):
 
     extra_images = ExtraEventPicture.objects.filter(event=event)
     obj = set_attraction_properties(obj, event, extra_images)
-    # add properties of related destination, if any
-    obj = set_location_properties(obj, event.destination)
+    # add properties of first related destination, if any
+    obj = set_location_properties(obj, event.destinations.first())
 
-    # if related destination belongs to Watershed Alliance, so does this event
-    obj['watershed_alliance'] = event.destination.watershed_alliance if event.destination else False
+    obj['destinations'] = [set_destination_properties(x) for x in event.destinations.all()]
+
+    # if the first related destination belongs to Watershed Alliance, so does this event
+    obj['watershed_alliance'] = event.destinations.first().watershed_alliance if event.destinations.count() else False
     return obj