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':