feat: 站内信 (#6183)

* 添加站内信

* s

* s

* 添加接口

* fix

* fix

* 重构了一些

* 完成

* 完善

* s

* s

* s

* s

* s

* s

* 测试ok

* 替换业务中发送消息的方式

* 修改

* s

* 去掉 update 兼容 create

* 添加 unread total 接口

* 调整json字段

Co-authored-by: xinwen <coderWen@126.com>

apps/notifications/migrations/0001_initial.py

@@ -0,0 +1,92 @@
+# Generated by Django 3.1 on 2021-05-31 08:59
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+import uuid
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('users', '0035_auto_20210526_1100'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='SiteMessage',
+            fields=[
+                ('created_by', models.CharField(blank=True, max_length=32, null=True, verbose_name='Created by')),
+                ('updated_by', models.CharField(blank=True, max_length=32, null=True, verbose_name='Updated by')),
+                ('date_created', models.DateTimeField(auto_now_add=True, null=True, verbose_name='Date created')),
+                ('date_updated', models.DateTimeField(auto_now=True, verbose_name='Date updated')),
+                ('id', models.UUIDField(default=uuid.uuid4, primary_key=True, serialize=False)),
+                ('subject', models.CharField(max_length=1024)),
+                ('message', models.TextField()),
+                ('is_broadcast', models.BooleanField(default=False)),
+                ('groups', models.ManyToManyField(to='users.UserGroup')),
+                ('sender', models.ForeignKey(db_constraint=False, default=None, null=True, on_delete=django.db.models.deletion.DO_NOTHING, related_name='send_site_message', to=settings.AUTH_USER_MODEL)),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+        migrations.CreateModel(
+            name='UserMsgSubscription',
+            fields=[
+                ('created_by', models.CharField(blank=True, max_length=32, null=True, verbose_name='Created by')),
+                ('updated_by', models.CharField(blank=True, max_length=32, null=True, verbose_name='Updated by')),
+                ('date_created', models.DateTimeField(auto_now_add=True, null=True, verbose_name='Date created')),
+                ('date_updated', models.DateTimeField(auto_now=True, verbose_name='Date updated')),
+                ('id', models.UUIDField(default=uuid.uuid4, primary_key=True, serialize=False)),
+                ('message_type', models.CharField(max_length=128)),
+                ('receive_backends', models.JSONField(default=list)),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='user_msg_subscriptions', to=settings.AUTH_USER_MODEL)),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+        migrations.CreateModel(
+            name='SystemMsgSubscription',
+            fields=[
+                ('created_by', models.CharField(blank=True, max_length=32, null=True, verbose_name='Created by')),
+                ('updated_by', models.CharField(blank=True, max_length=32, null=True, verbose_name='Updated by')),
+                ('date_created', models.DateTimeField(auto_now_add=True, null=True, verbose_name='Date created')),
+                ('date_updated', models.DateTimeField(auto_now=True, verbose_name='Date updated')),
+                ('id', models.UUIDField(default=uuid.uuid4, primary_key=True, serialize=False)),
+                ('message_type', models.CharField(max_length=128, unique=True)),
+                ('receive_backends', models.JSONField(default=list)),
+                ('groups', models.ManyToManyField(related_name='system_msg_subscriptions', to='users.UserGroup')),
+                ('users', models.ManyToManyField(related_name='system_msg_subscriptions', to=settings.AUTH_USER_MODEL)),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+        migrations.CreateModel(
+            name='SiteMessageUsers',
+            fields=[
+                ('created_by', models.CharField(blank=True, max_length=32, null=True, verbose_name='Created by')),
+                ('updated_by', models.CharField(blank=True, max_length=32, null=True, verbose_name='Updated by')),
+                ('date_created', models.DateTimeField(auto_now_add=True, null=True, verbose_name='Date created')),
+                ('date_updated', models.DateTimeField(auto_now=True, verbose_name='Date updated')),
+                ('id', models.UUIDField(default=uuid.uuid4, primary_key=True, serialize=False)),
+                ('has_read', models.BooleanField(default=False)),
+                ('read_at', models.DateTimeField(default=None, null=True)),
+                ('sitemessage', models.ForeignKey(db_constraint=False, on_delete=django.db.models.deletion.CASCADE, related_name='m2m_sitemessageusers', to='notifications.sitemessage')),
+                ('user', models.ForeignKey(db_constraint=False, on_delete=django.db.models.deletion.CASCADE, related_name='m2m_sitemessageusers', to=settings.AUTH_USER_MODEL)),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+        migrations.AddField(
+            model_name='sitemessage',
+            name='users',
+            field=models.ManyToManyField(related_name='recv_site_messages', through='notifications.SiteMessageUsers', to=settings.AUTH_USER_MODEL),
+        ),
+    ]