feat(chat models): update message read status

apps/chat/migrations/0003_auto_20241125_1737.py

@@ -0,0 +1,34 @@
+# Generated by Django 3.2.4 on 2024-11-25 17:37
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('chat', '0002_auto_20241125_1219'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='chatmessage',
+            name='is_read',
+            field=models.BooleanField(default=False, verbose_name='Is Read'),
+        ),
+        migrations.CreateModel(
+            name='MessageReadStatus',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('is_read', models.BooleanField(default=False, verbose_name='Is Read')),
+                ('read_at', models.DateTimeField(blank=True, null=True, verbose_name='Read At')),
+                ('message', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='read_statuses', to='chat.chatmessage', verbose_name='Message')),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='read_statuses', to=settings.AUTH_USER_MODEL, verbose_name='User')),
+            ],
+            options={
+                'unique_together': {('user', 'message')},
+            },
+        ),
+    ]

apps/chat/models.py

@@ -1,7 +1,7 @@
 
 from django.db import models
 
-from apps.account.models import User, ProfessorUser
+from apps.account.models import User, User
 from apps.course.models import Course
 
 
@@ -85,6 +85,7 @@ class ChatMessage(models.Model):
         blank=True,
         null=True
     )
+    is_read = models.BooleanField(default=False, verbose_name="Is Read")
 
     sent_at = models.DateTimeField(auto_now_add=True, verbose_name="Sent At")        
     updated_at = models.DateTimeField(auto_now=True, verbose_name="Updated At")
@@ -95,4 +96,25 @@ class ChatMessage(models.Model):
         return f"Message from {self.sender} in {self.room}"
     
             
+class MessageReadStatus(models.Model):
+    user = models.ForeignKey(
+        User,
+        on_delete=models.CASCADE,
+        related_name="read_statuses",
+        verbose_name="User"
+    )
+    message = models.ForeignKey(
+        ChatMessage,
+        on_delete=models.CASCADE,
+        related_name="read_statuses",
+        verbose_name="Message"
+    )
+    is_read = models.BooleanField(default=False, verbose_name="Is Read")
+    read_at = models.DateTimeField(null=True, blank=True, verbose_name="Read At")
+
+    class Meta:
+        unique_together = ("user", "message")  # جلوگیری از ثبت تکراری
+
+    def __str__(self):
+        return f"User {self.user.fullname} read Message {self.message.id}: {self.is_read}"