Further polishing for subjects

stude/subjects/admin.py

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+from django.contrib import admin
+from .models import Subject
+
+
+admin.site.register(Subject)

stude/subjects/apps.py

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+from django.apps import AppConfig
+
+
+class SubjectsConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'subjects'

stude/subjects/migrations/0001_initial.py

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+# Generated by Django 4.2.2 on 2023-06-27 09:44
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('year_levels', '0001_initial'),
+        ('courses', '0001_initial'),
+        ('semesters', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Subject',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=64)),
+                ('code', models.CharField(max_length=16)),
+                ('courses', models.ManyToManyField(related_name='SubjectCourse_subject', through='courses.SubjectCourse', to='courses.course')),
+                ('semester', models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, to='semesters.semester')),
+                ('year_level', models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='Year_Level_name', to='year_levels.year_level')),
+            ],
+        ),
+    ]

stude/subjects/models.py

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+from django.db import models
+from year_levels.models import Year_Level
+from semesters.models import Semester
+# Create your models here.
+
+
+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')
+
+    year_level = models.ForeignKey(
+        Year_Level,
+        on_delete=models.SET_NULL,
+        null=True,
+        related_name='Year_Level_name'
+    )
+    semester = models.ForeignKey(
+        Semester,
+        on_delete=models.SET_NULL,
+        null=True
+    )
+
+    def __str__(self):
+        return self.name

stude/subjects/serializers.py

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+from rest_framework import serializers
+from .models import Subject
+from year_levels.serializers import YearLevelSerializer
+from semesters.serializers import SemesterSerializer
+
+
+class SubjectSerializer(serializers.ModelSerializer):
+    year_level = serializers.SerializerMethodField()
+    semester = serializers.SerializerMethodField()
+
+    class Meta:
+        model = Subject
+        fields = '__all__'
+
+    def get_year_level(self, obj):
+        return obj.year_level.name
+
+    def get_semester(self, obj):
+        return obj.semester.name

stude/subjects/tests.py

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+from django.test import TestCase
+
+# Create your tests here.

stude/subjects/urls.py

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+from django.urls import include, path
+from .views import SubjectListView
+from .views import SubjectByYearSemesterView
+
+urlpatterns = [
+    path('', SubjectListView.as_view()),
+    path('subjects/<str:year_slug>/',
+         SubjectByYearSemesterView.as_view()),
+]

stude/subjects/views.py

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+from rest_framework import generics
+from .models import Subject
+from .serializers import SubjectSerializer
+from rest_framework.views import APIView
+from rest_framework.response import Response
+
+
+class SubjectListView(generics.ListAPIView):
+    serializer_class = SubjectSerializer
+    queryset = Subject.objects.all()
+
+
+class SubjectByYearSemesterView(generics.ListAPIView):
+    def get(self, request, year_slug):
+        # Retrieve the subjects based on year level and semester slugs
+        subjects = Subject.objects.filter(
+            year_level__shortname=year_slug)
+
+        # Serialize the subjects
+        serializer = SubjectSerializer(subjects, many=True)
+
+        return Response(serializer.data)