create UserMeeting for handle user in one meeting

appointment/migrations/0004_usermeeting.py

@@ -0,0 +1,24 @@
+# Generated by Django 3.1 on 2020-11-07 13:14
+
+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),
+        ('appointment', '0003_auto_20201016_2150'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='UserMeeting',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('meeting', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='appointment.meeting')),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+    ]

appointment/models.py

@@ -1,6 +1,7 @@
 """Config for Django models."""
 from django.db import models
 from django.urls import reverse
+from django.contrib.auth.models import User
 
 
 class Meeting(models.Model):
@@ -27,3 +28,8 @@ def get_html_url(self):
         """Return HTML of detail page."""
         url = reverse("appointment:detail", args=(self.id,))
         return f'<a href="{url}"> {self.subject}</a>'
+
+class UserMeeting(models.Model):
+    """The model for handle users in one meeting"""
+    user = models.ForeignKey(User, on_delete=models.CASCADE)
+    meeting = models.ForeignKey(Meeting, on_delete=models.CASCADE)