update camp with read only field, fix #96

src/camps/migrations/0020_camp_read_only.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.5 on 2017-03-07 20:04
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('camps', '0019_auto_20170131_1849'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='camp',
+            name='read_only',
+            field=models.BooleanField(default=False, help_text='Whether the camp is read only (i.e. in the past)'),
+        ),
+    ]

src/camps/models.py

@@ -1,4 +1,3 @@
-import datetime
 from django.db import models
 from utils.models import UUIDModel, CreatedUpdatedModel
 from program.models import EventType, EventLocation
@@ -47,6 +46,11 @@ class Camp(CreatedUpdatedModel, UUIDModel):
         help_text='The camp teardown period.',
     )
 
+    read_only = models.BooleanField(
+        help_text='Whether the camp is read only (i.e. in the past)',
+        default=False
+    )
+
     def get_absolute_url(self):
         return reverse('camp_detail', kwargs={'camp_slug': self.slug})
 
@@ -110,7 +114,7 @@ class Camp(CreatedUpdatedModel, UUIDModel):
                 # on the first day use actual start time instead of midnight
                 days.append(
                     DateTimeTZRange(
-                        field.lower, 
+                        field.lower,
                         (field.lower+timedelta(days=i+1)).replace(hour=0)
                     )
                 )

src/info/models.py

@@ -1,11 +1,9 @@
-
-from django.contrib import messages
 from django.db import models
-from utils.models import CreatedUpdatedModel
+from utils.models import CreatedUpdatedModel, CampRelatedModel
 from django.core.exceptions import ValidationError
 
 
-class InfoCategory(CreatedUpdatedModel):
+class InfoCategory(CreatedUpdatedModel, CampRelatedModel):
     class Meta:
         ordering = ['weight', 'headline']
         unique_together = (('anchor', 'camp'), ('headline', 'camp'))
@@ -40,7 +38,7 @@ class InfoCategory(CreatedUpdatedModel):
         return '%s (%s)' % (self.headline, self.camp)
 
 
-class InfoItem(CreatedUpdatedModel):
+class InfoItem(CreatedUpdatedModel, CampRelatedModel):
     class Meta:
         ordering = ['weight', 'headline']
         unique_together = (('anchor', 'category'), ('headline', 'category'))
@@ -69,6 +67,10 @@ class InfoItem(CreatedUpdatedModel):
         default = 100,
     )
 
+    @property
+    def camp(self):
+        return self.category.camp
+
     def clean(self):
         if InfoCategory.objects.filter(camp=self.category.camp, anchor=self.anchor).exists():
             # this anchor is already in use on a category, so it cannot be used here (they must be unique on the entire page)

src/program/models.py

@@ -3,12 +3,12 @@ from django.db import models
 from django.utils.text import slugify
 from django.conf import settings
 from django.utils.translation import ugettext_lazy as _
-from utils.models import CreatedUpdatedModel
+from utils.models import CreatedUpdatedModel, CampRelatedModel
 from django.core.exceptions import ValidationError
 from datetime import timedelta
 
 
-class EventLocation(CreatedUpdatedModel):
+class EventLocation(CreatedUpdatedModel, CampRelatedModel):
     """ The places where stuff happens """
     name = models.CharField(max_length=100)
     slug = models.SlugField()
@@ -34,7 +34,7 @@ class EventType(CreatedUpdatedModel):
         return self.name
 
 
-class Event(CreatedUpdatedModel):
+class Event(CreatedUpdatedModel, CampRelatedModel):
     """ Something that is on the program one or more times. """
     title = models.CharField(max_length=255)
     slug = models.SlugField(blank=True, max_length=255)
@@ -72,7 +72,7 @@ class Event(CreatedUpdatedModel):
         return False
 
 
-class EventInstance(CreatedUpdatedModel):
+class EventInstance(CreatedUpdatedModel, CampRelatedModel):
     """ An instance of an event """
     event = models.ForeignKey('program.event', related_name='instances')
     when = DateTimeRangeField()
@@ -93,6 +93,10 @@ class EventInstance(CreatedUpdatedModel):
         if errors:
             raise ValidationError(errors)
 
+    @property
+    def camp(self):
+        return self.event.camp
+
     @property
     def schedule_date(self):
         """
@@ -123,7 +127,7 @@ def get_speaker_picture_upload_path(instance, filename):
     }
 
 
-class Speaker(CreatedUpdatedModel):
+class Speaker(CreatedUpdatedModel, CampRelatedModel):
     """ A Person anchoring an event. """
     name = models.CharField(max_length=150)
     biography = models.TextField()

src/utils/models.py

@@ -1,5 +1,6 @@
 import uuid
 from django.core.exceptions import ValidationError
+from django.contrib import messages
 from django.db import models
 
 
@@ -11,7 +12,7 @@ class CleanedModel(models.Model):
         try:
             # call this models full_clean() method before saving,
             # which in turn calls .clean_fields(), .clean() and .validate_unique()
-            #self.full_clean()
+            # self.full_clean()
             # for some reason self.full_clean() appears to call self.clean() before self.clean_fields()
             # which is not supposed to happen. Call them manually one by one instead.
             self.clean_fields()
@@ -46,3 +47,22 @@ class CreatedUpdatedModel(CleanedModel):
     updated = models.DateTimeField(auto_now=True)
 
 
+class CampRelatedModel(CleanedModel):
+    class Meta:
+        abstract = True
+
+    def save(self, **kwargs):
+        if self.camp.read_only:
+            if hasattr(self, 'request'):
+                messages.error(self.request, 'Camp is in read only mode.')
+            raise ValidationError('This camp is in read only mode.')
+
+        super(CampRelatedModel, self).save(**kwargs)
+
+    def delete(self, **kwargs):
+        if self.camp.read_only:
+            if hasattr(self, 'request'):
+                messages.error(self.request, 'Camp is in read only mode.')
+            raise ValidationError('This camp is in read only mode.')
+
+        super(CampRelatedModel, self).save(**kwargs)

src/villages/models.py

@@ -1,15 +1,13 @@
-
-
 from django.core.urlresolvers import reverse_lazy
 from django.db import models
 from django.utils.text import slugify
 
-from utils.models import CreatedUpdatedModel, UUIDModel
+from utils.models import CreatedUpdatedModel, UUIDModel, CampRelatedModel
 
 from .managers import VillageQuerySet
 
 
-class Village(CreatedUpdatedModel, UUIDModel):
+class Village(CreatedUpdatedModel, UUIDModel, CampRelatedModel):
 
     class Meta:
         ordering = ['name']