Added relationship between user and subjects

stude/accounts/migrations/0003_customuser_subjects.py

@@ -0,0 +1,19 @@
+# Generated by Django 4.2.2 on 2023-06-28 03:09
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('subjects', '0002_subjectstudent_subject_students'),
+        ('accounts', '0002_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='customuser',
+            name='subjects',
+            field=models.ManyToManyField(related_name='SubjectStudent_user', through='subjects.SubjectStudent', to='subjects.subject'),
+        ),
+    ]

stude/accounts/models.py

@@ -54,6 +54,8 @@ class CustomUser(AbstractUser):
         on_delete=models.CASCADE,
         null=True
     )
+    subjects = models.ManyToManyField(
+        'subjects.Subject', through='subjects.SubjectStudent', related_name='SubjectStudent_user')
 
     @property
     def full_name(self):

stude/accounts/serializers.py

@@ -1,5 +1,6 @@
 from djoser.serializers import UserCreateSerializer as BaseUserRegistrationSerializer
 from djoser.serializers import UserSerializer as BaseUserSerializer
+from rest_framework import serializers
 from accounts.models import CustomUser
 from student_status.serializers import StudentStatusSerializer
 from student_status.models import StudentStatus
@@ -12,13 +13,13 @@ class CustomUserSerializer(BaseUserSerializer):
     class Meta(BaseUserSerializer.Meta):
         model = CustomUser
         fields = ('username', 'email', 'password',
-                  'student_id_number', 'year_level', 'semester', 'course', 'avatar', 'first_name', 'last_name', 'is_banned', 'user_status')
+                  'student_id_number', 'year_level', 'semester', 'course', 'subjects', 'avatar', 'first_name', 'last_name', 'is_banned', 'user_status')
 
 
 class UserRegistrationSerializer(BaseUserRegistrationSerializer):
     class Meta(BaseUserRegistrationSerializer.Meta):
         fields = ('username', 'email', 'password',
-                  'student_id_number', 'year_level', 'semester', 'course', 'avatar', 'first_name', 'last_name')
+                  'student_id_number', 'year_level', 'semester', 'course', 'subjects', 'avatar', 'first_name', 'last_name')
 
     def create(self, validated_data):
         # Get the user's year_level and semester from the user model instance

stude/subjects/admin.py

@@ -1,6 +1,6 @@
 from django.contrib import admin
 from courses.models import Course
-from .models import Subject
+from .models import Subject, SubjectStudent
 
 
 class SubjectAdmin(admin.ModelAdmin):
@@ -8,3 +8,4 @@ class SubjectAdmin(admin.ModelAdmin):
 
 
 admin.site.register(Subject, SubjectAdmin)
+admin.site.register(SubjectStudent)

stude/subjects/migrations/0002_subjectstudent_subject_students.py

@@ -0,0 +1,29 @@
+# Generated by Django 4.2.2 on 2023-06-28 03:09
+
+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),
+        ('subjects', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='SubjectStudent',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('subject', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='subjects.subject')),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+        migrations.AddField(
+            model_name='subject',
+            name='students',
+            field=models.ManyToManyField(related_name='SubjectStudent_subject', through='subjects.SubjectStudent', to=settings.AUTH_USER_MODEL),
+        ),
+    ]

stude/subjects/models.py

@@ -9,6 +9,8 @@ class Subject(models.Model):
     code = models.CharField(max_length=16)
     courses = models.ManyToManyField(
         'courses.Course', through='courses.SubjectCourse', related_name='SubjectCourse_subject')
+    students = models.ManyToManyField(
+        'accounts.CustomUser', through='subjects.SubjectStudent', related_name='SubjectStudent_subject')
 
     year_level = models.ForeignKey(
         Year_Level,
@@ -24,3 +26,13 @@ class Subject(models.Model):
 
     def __str__(self):
         return self.name
+
+
+class SubjectStudent(models.Model):
+    user = models.ForeignKey(
+        'accounts.CustomUser', on_delete=models.CASCADE)
+    subject = models.ForeignKey(
+        'subjects.Subject', on_delete=models.CASCADE)
+
+    def __str__(self):
+        return f'User: User={self.user_id}, Subject={self.subject_name}'