Moved subject course associative entity to subjects app

stude/courses/admin.py

@@ -1,6 +1,5 @@
 from django.contrib import admin
-from .models import Course, SubjectCourse
+from .models import Course
 
 
 admin.site.register(Course)
-admin.site.register(SubjectCourse)

stude/courses/migrations/0003_remove_subjectcourse_course_and_more.py

@@ -0,0 +1,21 @@
+# Generated by Django 4.2.3 on 2023-07-10 09:34
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('courses', '0002_initial'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='subjectcourse',
+            name='course',
+        ),
+        migrations.RemoveField(
+            model_name='subjectcourse',
+            name='subject',
+        ),
+    ]

stude/courses/migrations/0004_alter_course_subjects_delete_subjectcourse.py

@@ -0,0 +1,22 @@
+# Generated by Django 4.2.3 on 2023-07-10 09:34
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('subjects', '0002_subjectcourse_alter_subject_courses'),
+        ('courses', '0003_remove_subjectcourse_course_and_more'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='course',
+            name='subjects',
+            field=models.ManyToManyField(related_name='SubjectCourse_course', through='subjects.SubjectCourse', to='subjects.subject'),
+        ),
+        migrations.DeleteModel(
+            name='SubjectCourse',
+        ),
+    ]

stude/courses/models.py

@@ -8,21 +8,12 @@ class Course(models.Model):
     name = models.CharField(max_length=64)
     shortname = models.CharField(max_length=16)
     subjects = models.ManyToManyField(
-        'subjects.Subject', related_name='SubjectCourse_course', through='courses.SubjectCourse')
+        'subjects.Subject', related_name='SubjectCourse_course', through='subjects.SubjectCourse')
 
     def __str__(self):
         return self.name
 
 
-class SubjectCourse(models.Model):
-    subject = models.ForeignKey('subjects.Subject', on_delete=models.CASCADE)
-    course = models.ForeignKey(
-        'courses.Course', on_delete=models.CASCADE, null=True)
-
-    def __str__(self):
-        return (self.subject + ' under course ' + self.course)
-
-
 @receiver(post_migrate)
 def populate_courses(sender, **kwargs):
     if sender.name == 'courses':

stude/study_groups/views.py

@@ -4,7 +4,7 @@ from rest_framework.exceptions import PermissionDenied
 from rest_framework.permissions import IsAuthenticated
 from .serializers import StudyGroupSerializer
 from .models import StudyGroup
-from courses.models import SubjectCourse
+from subjects.models import SubjectCourse
 # Create your views here.
 
 

stude/subjects/admin.py

@@ -1,6 +1,5 @@
 from django.contrib import admin
-from courses.models import Course
-from .models import Subject, SubjectStudent
+from .models import Subject, SubjectStudent, SubjectCourse
 
 
 class SubjectAdmin(admin.ModelAdmin):
@@ -9,3 +8,4 @@ class SubjectAdmin(admin.ModelAdmin):
 
 admin.site.register(Subject, SubjectAdmin)
 admin.site.register(SubjectStudent)
+admin.site.register(SubjectCourse)

stude/subjects/migrations/0002_subjectcourse_alter_subject_courses.py

@@ -0,0 +1,28 @@
+# Generated by Django 4.2.3 on 2023-07-10 09:34
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('courses', '0003_remove_subjectcourse_course_and_more'),
+        ('subjects', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='SubjectCourse',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('course', models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, to='courses.course')),
+                ('subject', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='subjects.subject')),
+            ],
+        ),
+        migrations.AlterField(
+            model_name='subject',
+            name='courses',
+            field=models.ManyToManyField(related_name='SubjectCourse_subject', through='subjects.SubjectCourse', to='courses.course'),
+        ),
+    ]

stude/subjects/models.py

@@ -8,7 +8,7 @@ class Subject(models.Model):
     name = models.CharField(max_length=64)
     code = models.CharField(max_length=16)
     courses = models.ManyToManyField(
-        'courses.Course', through='courses.SubjectCourse', related_name='SubjectCourse_subject')
+        'courses.Course', through='subjects.SubjectCourse', related_name='SubjectCourse_subject')
     students = models.ManyToManyField(
         'accounts.CustomUser', through='subjects.SubjectStudent', related_name='SubjectStudent_subject')
 
@@ -36,3 +36,12 @@ class SubjectStudent(models.Model):
 
     def __str__(self):
         return f'User: User={self.user_id}, Subject={self.subject_name}'
+
+
+class SubjectCourse(models.Model):
+    subject = models.ForeignKey('subjects.Subject', on_delete=models.CASCADE)
+    course = models.ForeignKey(
+        'courses.Course', on_delete=models.CASCADE, null=True)
+
+    def __str__(self):
+        return (self.subject + ' under course ' + self.course)