Make model DateTime fields timezone aware.

Make all Datetime fields in models using `datetime.datetime.now` switch
to the timezone-aware `django.utils.timezone.now`.

Fields changed include:

  - reviews.models.Comments.commented_at
  - reviews.models.LatestVote.submitted_at
  - reviews.models.ProposalMessage.submitted_at
  - reviews.models.ResultNotification.timestamp
  - reviews.models.Review.submitted_at
  - reviews.models.ReviewAssignment.assigned_at
  - schedule.models.SessionRole.submitted
  - speakers.models.Speaker.created
  - sponsorship.models.Sponsor.added
  - teams.models.Team.created

symposion/reviews/migrations/0002_make_fields_timezone_aware.py

@@ -0,0 +1,46 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.12 on 2016-12-25 01:46
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.utils.timezone
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('symposion_reviews', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='comment',
+            name='commented_at',
+            field=models.DateTimeField(default=django.utils.timezone.now, verbose_name='Commented at'),
+        ),
+        migrations.AlterField(
+            model_name='latestvote',
+            name='submitted_at',
+            field=models.DateTimeField(default=django.utils.timezone.now, editable=False, verbose_name='Submitted at'),
+        ),
+        migrations.AlterField(
+            model_name='proposalmessage',
+            name='submitted_at',
+            field=models.DateTimeField(default=django.utils.timezone.now, editable=False, verbose_name='Submitted at'),
+        ),
+        migrations.AlterField(
+            model_name='resultnotification',
+            name='timestamp',
+            field=models.DateTimeField(default=django.utils.timezone.now, verbose_name='Timestamp'),
+        ),
+        migrations.AlterField(
+            model_name='review',
+            name='submitted_at',
+            field=models.DateTimeField(default=django.utils.timezone.now, editable=False, verbose_name='Submitted at'),
+        ),
+        migrations.AlterField(
+            model_name='reviewassignment',
+            name='assigned_at',
+            field=models.DateTimeField(default=django.utils.timezone.now, verbose_name='Assigned at'),
+        ),
+    ]

symposion/reviews/models.py

@@ -1,13 +1,13 @@
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
-from datetime import datetime
 from decimal import Decimal
 
 from django.db import models
 from django.db.models import Q, F
 from django.db.models.signals import post_save
 
 from django.contrib.auth.models import User
+from django.utils import timezone
 from django.utils.translation import ugettext_lazy as _
 
 from symposion.markdown_parser import parse
@@ -55,7 +55,7 @@ class ReviewAssignment(models.Model):
 
     origin = models.IntegerField(choices=ORIGIN_CHOICES, verbose_name=_("Origin"))
 
-    assigned_at = models.DateTimeField(default=datetime.now, verbose_name=_("Assigned at"))
+    assigned_at = models.DateTimeField(default=timezone.now, verbose_name=_("Assigned at"))
     opted_out = models.BooleanField(default=False, verbose_name=_("Opted out"))
 
     @classmethod
@@ -95,7 +95,7 @@ class ProposalMessage(models.Model):
 
     message = models.TextField(verbose_name=_("Message"))
     message_html = models.TextField(blank=True)
-    submitted_at = models.DateTimeField(default=datetime.now, editable=False, verbose_name=_("Submitted at"))
+    submitted_at = models.DateTimeField(default=timezone.now, editable=False, verbose_name=_("Submitted at"))
 
     def save(self, *args, **kwargs):
         self.message_html = parse(self.message)
@@ -118,7 +118,7 @@ class Review(models.Model):
     vote = models.CharField(max_length=2, blank=True, choices=VOTES.CHOICES, verbose_name=_("Vote"))
     comment = models.TextField(verbose_name=_("Comment"))
     comment_html = models.TextField(blank=True)
-    submitted_at = models.DateTimeField(default=datetime.now, editable=False, verbose_name=_("Submitted at"))
+    submitted_at = models.DateTimeField(default=timezone.now, editable=False, verbose_name=_("Submitted at"))
 
     def save(self, **kwargs):
         self.comment_html = parse(self.comment)
@@ -201,7 +201,7 @@ class LatestVote(models.Model):
     # No way to encode "-0" vs. "+0" into an IntegerField, and I don't feel
     # like some complicated encoding system.
     vote = models.CharField(max_length=2, choices=VOTES.CHOICES, verbose_name=_("Vote"))
-    submitted_at = models.DateTimeField(default=datetime.now, editable=False, verbose_name=_("Submitted at"))
+    submitted_at = models.DateTimeField(default=timezone.now, editable=False, verbose_name=_("Submitted at"))
 
     class Meta:
         unique_together = [("proposal", "user")]
@@ -305,7 +305,7 @@ class Comment(models.Model):
 
     # Or perhaps more accurately, can the user see this comment.
     public = models.BooleanField(choices=[(True, _("public")), (False, _("private"))], default=False, verbose_name=_("Public"))
-    commented_at = models.DateTimeField(default=datetime.now, verbose_name=_("Commented at"))
+    commented_at = models.DateTimeField(default=timezone.now, verbose_name=_("Commented at"))
 
     class Meta:
         verbose_name = _("comment")
@@ -333,7 +333,7 @@ class ResultNotification(models.Model):
     proposal = models.ForeignKey(ProposalBase, related_name="notifications", verbose_name=_("Proposal"))
     template = models.ForeignKey(NotificationTemplate, null=True, blank=True,
                                  on_delete=models.SET_NULL, verbose_name=_("Template"))
-    timestamp = models.DateTimeField(default=datetime.now, verbose_name=_("Timestamp"))
+    timestamp = models.DateTimeField(default=timezone.now, verbose_name=_("Timestamp"))
     to_address = models.EmailField(verbose_name=_("To address"))
     from_address = models.EmailField(verbose_name=_("From address"))
     subject = models.CharField(max_length=100, verbose_name=_("Subject"))

symposion/schedule/migrations/0003_make_sessionrole_submitted_timezone_aware.py

@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.12 on 2016-12-25 02:02
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.utils.timezone
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('symposion_schedule', '0002_slot_name'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='sessionrole',
+            name='submitted',
+            field=models.DateTimeField(default=django.utils.timezone.now),
+        ),
+    ]

symposion/schedule/models.py

@@ -5,6 +5,7 @@
 from django.core.exceptions import ObjectDoesNotExist
 from django.contrib.auth.models import User
 from django.db import models
+from django.utils import timezone
 from django.utils.encoding import python_2_unicode_compatible
 from django.utils.translation import ugettext_lazy as _
 
@@ -281,7 +282,7 @@ class SessionRole(models.Model):
     role = models.IntegerField(choices=SESSION_ROLE_TYPES, verbose_name=_("Role"))
     status = models.NullBooleanField(verbose_name=_("Status"))
 
-    submitted = models.DateTimeField(default=datetime.datetime.now)
+    submitted = models.DateTimeField(default=timezone.now)
 
     class Meta:
         unique_together = [("session", "user", "role")]

symposion/speakers/migrations/0003_make_speaker_created_timezone_aware.py

@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.12 on 2016-12-24 23:19
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.utils.timezone
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('symposion_speakers', '0002_speaker_twitter_username'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='speaker',
+            name='created',
+            field=models.DateTimeField(default=django.utils.timezone.now, editable=False, verbose_name='Created'),
+        ),
+    ]

symposion/speakers/models.py

@@ -1,9 +1,8 @@
 from __future__ import unicode_literals
 
-import datetime
-
 from django.core.urlresolvers import reverse
 from django.db import models
+from django.utils import timezone
 from django.utils.encoding import python_2_unicode_compatible
 from django.utils.translation import ugettext_lazy as _
 
@@ -39,7 +38,7 @@ class Speaker(models.Model):
     invite_email = models.CharField(max_length=200, unique=True, null=True, db_index=True, verbose_name=_("Invite_email"))
     invite_token = models.CharField(max_length=40, db_index=True, verbose_name=_("Invite token"))
     created = models.DateTimeField(
-        default=datetime.datetime.now,
+        default=timezone.now,
         editable=False,
         verbose_name=_("Created")
     )

symposion/sponsorship/migrations/0003_make_sponsor_added_timezone_aware.py

@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.12 on 2016-12-25 00:53
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.utils.timezone
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('symposion_sponsorship', '0002_auto_20160517_1726'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='sponsor',
+            name='added',
+            field=models.DateTimeField(default=django.utils.timezone.now, verbose_name='added'),
+        ),
+    ]

symposion/sponsorship/models.py

@@ -1,12 +1,11 @@
 from __future__ import unicode_literals
 
-import datetime
-
 from django.conf import settings
 from django.core.exceptions import ValidationError
 from django.core.urlresolvers import reverse
 from django.db import models
 from django.db.models.signals import post_init, post_save
+from django.utils import timezone
 from django.utils.encoding import python_2_unicode_compatible
 from django.utils.translation import ugettext_lazy as _
 
@@ -79,7 +78,7 @@ class Sponsor(models.Model):
     contact_name = models.CharField(_("Contact Name"), max_length=100)
     contact_email = models.EmailField(_("Contact Email"))
     level = models.ForeignKey(SponsorLevel, verbose_name=_("level"))
-    added = models.DateTimeField(_("added"), default=datetime.datetime.now)
+    added = models.DateTimeField(_("added"), default=timezone.now)
     active = models.BooleanField(_("active"), default=False)
 
     # Denormalization (this assumes only one logo)

symposion/teams/migrations/0002_make_team_created_timezone_aware.py

@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.12 on 2016-12-25 01:54
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.utils.timezone
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('teams', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='team',
+            name='created',
+            field=models.DateTimeField(default=django.utils.timezone.now, editable=False, verbose_name='Created'),
+        ),
+    ]

symposion/teams/models.py

@@ -1,8 +1,7 @@
 from __future__ import unicode_literals
 
-import datetime
-
 from django.db import models
+from django.utils import timezone
 from django.utils.encoding import python_2_unicode_compatible
 from django.utils.translation import ugettext_lazy as _
 
@@ -37,7 +36,7 @@ class Team(models.Model):
                                                  related_name="manager_teams",
                                                  verbose_name=_("Manager permissions"))
 
-    created = models.DateTimeField(default=datetime.datetime.now,
+    created = models.DateTimeField(default=timezone.now,
                                    editable=False, verbose_name=_("Created"))
 
     @models.permalink