Initializing Database

university/migrations/0001_initial.py

@@ -1,5 +1,6 @@
-# Generated by Django 5.0.1 on 2024-06-10 02:49
+# Generated by Django 5.0.6 on 2024-06-23 06:06
 
+import django.db.models.deletion
 from django.db import migrations, models
 
 
@@ -13,19 +14,10 @@ class Migration(migrations.Migration):
 
     operations = [
         migrations.CreateModel(
-            name='Sections',
-            fields=[
-                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('area_name', models.CharField(max_length=200)),
-                ('classes', models.ManyToManyField(to='classes.classes')),
-            ],
-        ),
-        migrations.CreateModel(
-            name='Agreements',
+            name='Agreement',
             fields=[
                 ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                 ('major', models.CharField(max_length=200)),
-                ('sections', models.ManyToManyField(to='university.sections')),
             ],
         ),
         migrations.CreateModel(
@@ -33,7 +25,21 @@ class Migration(migrations.Migration):
             fields=[
                 ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                 ('name', models.CharField(max_length=200)),
-                ('agreements', models.ManyToManyField(to='university.agreements')),
             ],
         ),
+        migrations.CreateModel(
+            name='Section',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('area_name', models.CharField(max_length=200)),
+                ('number_of_required_courses', models.IntegerField()),
+                ('agreement', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='sections', to='university.agreement')),
+                ('classes', models.ManyToManyField(related_name='classes', to='classes.classes')),
+            ],
+        ),
+        migrations.AddField(
+            model_name='agreement',
+            name='university',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='agreements', to='university.university'),
+        ),
     ]

university/migrations/0002_rename_agreements_agreement_rename_sections_section.py

@@ -1,22 +0,0 @@
-# Generated by Django 5.0.1 on 2024-06-10 02:52
-
-from django.db import migrations
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('classes', '0001_initial'),
-        ('university', '0001_initial'),
-    ]
-
-    operations = [
-        migrations.RenameModel(
-            old_name='Agreements',
-            new_name='Agreement',
-        ),
-        migrations.RenameModel(
-            old_name='Sections',
-            new_name='Section',
-        ),
-    ]

university/migrations/0003_section_number_of_required_courses.py

@@ -1,19 +0,0 @@
-# Generated by Django 5.0.1 on 2024-06-10 03:42
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('university', '0002_rename_agreements_agreement_rename_sections_section'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='section',
-            name='number_of_required_courses',
-            field=models.IntegerField(default=1),
-            preserve_default=False,
-        ),
-    ]

university/migrations/0004_remove_agreement_sections_and_more.py

@@ -1,34 +0,0 @@
-# Generated by Django 5.0.6 on 2024-06-18 21:20
-
-import django.db.models.deletion
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('university', '0003_section_number_of_required_courses'),
-    ]
-
-    operations = [
-        migrations.RemoveField(
-            model_name='agreement',
-            name='sections',
-        ),
-        migrations.RemoveField(
-            model_name='university',
-            name='agreements',
-        ),
-        migrations.AddField(
-            model_name='agreement',
-            name='university',
-            field=models.ForeignKey(default=1, on_delete=django.db.models.deletion.CASCADE, to='university.university'),
-            preserve_default=False,
-        ),
-        migrations.AddField(
-            model_name='section',
-            name='agreement',
-            field=models.ForeignKey(default=1, on_delete=django.db.models.deletion.CASCADE, to='university.agreement'),
-            preserve_default=False,
-        ),
-    ]

university/models.py

@@ -12,16 +12,16 @@ class University(models.Model):
 
 class Agreement(models.Model):
     major = models.CharField(max_length=200)
-    university = models.ForeignKey(University, on_delete=models.CASCADE)
+    university = models.ForeignKey(University, related_name="agreements", on_delete=models.CASCADE)
 
     def __str__(self) -> str:
-        return self.major
+        return f"{self.major} {self.university.name}"
 
 class Section(models.Model):
     area_name = models.CharField(max_length=200)
     number_of_required_courses = models.IntegerField()
-    classes = models.ManyToManyField(Classes)
-    agreement = models.ForeignKey(Agreement, on_delete=models.CASCADE)
+    classes = models.ManyToManyField(Classes, related_name="classes")
+    agreement = models.ForeignKey(Agreement, related_name="sections", on_delete=models.CASCADE)
 
     def __str__(self) -> str:
-        return self.area_name
+        return f"{self.area_name} {self.agreement.major} {self.agreement.university}"

university/serializers.py

@@ -1,24 +1,6 @@
 from rest_framework import serializers
 from .models import University, Agreement, Section
 
-class UniversitySerializer(serializers.ModelSerializer):
-    
-    class Meta:
-        model = University
-        fields = ["name"]
-
-class AgreementsSerializer(serializers.ModelSerializer):
-
-    # sections = serializers.SlugRelatedField(
-    #     many = True,
-    #     read_only = True,
-    #     slug_field = "area_name"
-    # )
-
-    class Meta:
-        model = Agreement
-        fields = ["major", "university"]
-
 class SectionsSerializer(serializers.ModelSerializer):
 
     classes = serializers.SlugRelatedField(
@@ -29,4 +11,19 @@ class SectionsSerializer(serializers.ModelSerializer):
 
     class Meta:
         model = Section
-        fields = ["area_name", "number_of_required_courses", "classes", "agreement"]
+        fields = ["area_name", "number_of_required_courses", "classes", "agreement"]
+
+
+class AgreementsSerializer(serializers.ModelSerializer):
+    sections = SectionsSerializer(many=True)
+
+    class Meta:
+        model = Agreement
+        fields = ["major", "university", "sections"]
+
+class UniversitySerializer(serializers.ModelSerializer):
+    agreements = AgreementsSerializer(many=True)
+    
+    class Meta:
+        model = University
+        fields = ["id", "name", "agreements"]