Add the `DeletedMessage` model.

3 files changed, 66 insertions, 6 deletions

diff --git a/api/migrations/0019_deletedmessage.py b/api/migrations/0019_deletedmessage.py
new file mode 100644
index 00000000..b119c3ef
--- /dev/null
+++ b/api/migrations/0019_deletedmessage.py
@@ -0,0 +1,34 @@
+# Generated by Django 2.1.1 on 2018-11-18 20:26
+
+import api.models
+import api.validators
+import django.contrib.postgres.fields
+import django.contrib.postgres.fields.jsonb
+import django.core.validators
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('api', '0018_messagedeletioncontext'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='DeletedMessage',
+            fields=[
+                ('id', models.BigIntegerField(help_text='The message ID as taken from Discord.', primary_key=True, serialize=False, validators=[django.core.validators.MinValueValidator(limit_value=0, message='Message IDs cannot be negative.')])),
+                ('channel_id', models.BigIntegerField(help_text='The channel ID that this message was sent in, taken from Discord.', validators=[django.core.validators.MinValueValidator(limit_value=0, message='Channel IDs cannot be negative.')])),
+                ('content', models.CharField(help_text='The content of this message, taken from Discord.', max_length=2000)),
+                ('embeds', django.contrib.postgres.fields.ArrayField(base_field=django.contrib.postgres.fields.jsonb.JSONField(validators=[api.validators.validate_tag_embed]), help_text='Embeds attached to this message.', size=None)),
+                ('author', models.ForeignKey(help_text='The author of this message.', on_delete=django.db.models.deletion.CASCADE, to='api.Member')),
+                ('deletion_context', models.ForeignKey(help_text='The deletion context this message is part of.', on_delete=django.db.models.deletion.CASCADE, to='api.MessageDeletionContext')),
+            ],
+            options={
+                'abstract': False,
+            },
+            bases=(api.models.ModelReprMixin, models.Model),
+        ),
+    ]
diff --git a/api/models.py b/api/models.py
index 22722b5c..ded9ebeb 100644
--- a/api/models.py
+++ b/api/models.py
@@ -272,6 +272,14 @@ class MessageDeletionContext(ModelReprMixin, models.Model):
     )
 
 
+class DeletedMessage(Message):
+    deletion_context = models.ForeignKey(
+        MessageDeletionContext,
+        help_text="The deletion context this message is part of.",
+        on_delete=models.CASCADE
+    )
+
+
 class Tag(ModelReprMixin, models.Model):
     """A tag providing (hopefully) useful information."""
 
diff --git a/api/tests/test_models.py b/api/tests/test_models.py
index b36f29b9..8d41c23e 100644
--- a/api/tests/test_models.py
+++ b/api/tests/test_models.py
@@ -3,12 +3,13 @@ from datetime import datetime
 from django.test import SimpleTestCase
 
 from ..models import (
-    DocumentationLink, Member,
-    Message, MessageDeletionContext,
-    ModelReprMixin, OffTopicChannelName,
-    Role, SnakeFact,
-    SnakeIdiom, SnakeName,
-    SpecialSnake, Tag
+    DeletedMessage, DocumentationLink,
+    Member, Message,
+    MessageDeletionContext, ModelReprMixin,
+    OffTopicChannelName, Role,
+    SnakeFact, SnakeIdiom,
+    SnakeName, SpecialSnake,
+    Tag
 )
 
 
@@ -29,6 +30,23 @@ class ReprMixinTests(SimpleTestCase):
 class StringDunderMethodTests(SimpleTestCase):
     def setUp(self):
         self.objects = (
+            DeletedMessage(
+                id=45,
+                author=Member(
+                    id=444, name='bill',
+                    discriminator=5, avatar_hash=None
+                ),
+                channel_id=666,
+                content="wooey",
+                deletion_context=MessageDeletionContext(
+                    actor=Member(
+                        id=5555, name='shawn',
+                        discriminator=555, avatar_hash=None
+                    ),
+                    creation=datetime.utcnow()
+                ),
+                embeds=[]
+            ),
             DocumentationLink(
                 'test', 'http://example.com', 'http://example.com'
             ),