Automatically add subjects based on a .csv file

stude/courses/migrations/0003_alter_course_name_alter_course_shortname.py

@@ -0,0 +1,23 @@
+# Generated by Django 4.2.3 on 2023-07-18 10:28
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('courses', '0002_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='course',
+            name='name',
+            field=models.CharField(max_length=64, unique=True),
+        ),
+        migrations.AlterField(
+            model_name='course',
+            name='shortname',
+            field=models.CharField(max_length=16, unique=True),
+        ),
+    ]

stude/courses/models.py

@@ -5,8 +5,8 @@ from django.db import models
 
 
 class Course(models.Model):
-    name = models.CharField(max_length=64)
+    name = models.CharField(max_length=64, unique=True)
-    shortname = models.CharField(max_length=16)
+    shortname = models.CharField(max_length=16, unique=True)
     subjects = models.ManyToManyField(
         'subjects.Subject', related_name='SubjectCourse_course', through='subjects.SubjectCourse')
 

stude/semesters/migrations/0002_alter_semester_name_alter_semester_shortname.py

@@ -0,0 +1,23 @@
+# Generated by Django 4.2.3 on 2023-07-18 10:28
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('semesters', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='semester',
+            name='name',
+            field=models.CharField(max_length=64, unique=True),
+        ),
+        migrations.AlterField(
+            model_name='semester',
+            name='shortname',
+            field=models.CharField(max_length=16, unique=True),
+        ),
+    ]

stude/semesters/models.py

@@ -6,8 +6,8 @@ from django.dispatch import receiver
 
 
 class Semester(models.Model):
-    name = models.CharField(max_length=64)
+    name = models.CharField(max_length=64, unique=True)
-    shortname = models.CharField(max_length=16)
+    shortname = models.CharField(max_length=16, unique=True)
 
     def __str__(self):
         return self.name

stude/subjects/migrations/0002_alter_subject_code_alter_subject_name_and_more.py

@@ -0,0 +1,76 @@
+# Generated by Django 4.2.3 on 2023-07-18 10:28
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('year_levels', '0002_alter_year_level_name_alter_year_level_shortname'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('courses', '0003_alter_course_name_alter_course_shortname'),
+        ('semesters', '0002_alter_semester_name_alter_semester_shortname'),
+        ('subjects', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='subject',
+            name='code',
+            field=models.CharField(max_length=16, unique=True),
+        ),
+        migrations.AlterField(
+            model_name='subject',
+            name='name',
+            field=models.CharField(max_length=64, unique=True),
+        ),
+        migrations.AlterField(
+            model_name='subject',
+            name='students',
+            field=models.ManyToManyField(blank=True, to=settings.AUTH_USER_MODEL),
+        ),
+        migrations.AlterField(
+            model_name='subjectcourse',
+            name='course',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, to='courses.course', to_field='name'),
+        ),
+        migrations.AlterField(
+            model_name='subjectcourse',
+            name='subject',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='subjects.subject', to_field='name'),
+        ),
+        migrations.AlterField(
+            model_name='subjectsemester',
+            name='semester',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='semesters.semester', to_field='name'),
+        ),
+        migrations.AlterField(
+            model_name='subjectsemester',
+            name='subject',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='subjects.subject', to_field='name'),
+        ),
+        migrations.AlterField(
+            model_name='subjectyearlevel',
+            name='subject',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='subjects.subject', to_field='name'),
+        ),
+        migrations.AlterField(
+            model_name='subjectyearlevel',
+            name='year_level',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='year_levels.year_level', to_field='name'),
+        ),
+        migrations.AlterUniqueTogether(
+            name='subjectcourse',
+            unique_together={('subject', 'course')},
+        ),
+        migrations.AlterUniqueTogether(
+            name='subjectsemester',
+            unique_together={('subject', 'semester')},
+        ),
+        migrations.AlterUniqueTogether(
+            name='subjectyearlevel',
+            unique_together={('subject', 'year_level')},
+        ),
+    ]

stude/subjects/models.py

@@ -1,12 +1,19 @@
+
+import os
+import csv
+from django.conf import settings
 from django.db import models
+from django.db.models.signals import post_migrate
+from django.dispatch import receiver
+from courses.models import Course
 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)
+    name = models.CharField(max_length=64, unique=True)
-    code = models.CharField(max_length=16)
+    code = models.CharField(max_length=16, unique=True)
     courses = models.ManyToManyField(
         'courses.Course', through='subjects.SubjectCourse', related_name='SubjectCourse_subject')
     students = models.ManyToManyField(
@@ -23,9 +30,10 @@ class Subject(models.Model):
 
 
 class SubjectCourse(models.Model):
-    subject = models.ForeignKey('subjects.Subject', on_delete=models.CASCADE)
+    subject = models.ForeignKey(
+        'subjects.Subject', on_delete=models.CASCADE, to_field='name')
     course = models.ForeignKey(
-        'courses.Course', on_delete=models.CASCADE, null=True)
+        'courses.Course', on_delete=models.CASCADE, null=True, to_field='name')
 
     def __str__(self):
         return f'Subject={self.subject.name}, Course={self.course.name}'
@@ -36,9 +44,9 @@ class SubjectCourse(models.Model):
 
 class SubjectYearLevel(models.Model):
     subject = models.ForeignKey(
-        'subjects.Subject', on_delete=models.CASCADE)
+        'subjects.Subject', on_delete=models.CASCADE, to_field='name')
     year_level = models.ForeignKey(
-        'year_levels.Year_Level', on_delete=models.CASCADE)
+        'year_levels.Year_Level', on_delete=models.CASCADE, to_field='name')
 
     def __str__(self):
         return f'Subject={self.subject.name}, Year Level={self.year_level.name}'
@@ -49,12 +57,70 @@ class SubjectYearLevel(models.Model):
 
 class SubjectSemester(models.Model):
     subject = models.ForeignKey(
-        'subjects.Subject', on_delete=models.CASCADE)
+        'subjects.Subject', on_delete=models.CASCADE, to_field='name')
     semester = models.ForeignKey(
-        'semesters.Semester', on_delete=models.CASCADE)
+        'semesters.Semester', on_delete=models.CASCADE, to_field='name')
 
     def __str__(self):
         return f'Subject={self.subject.name}, Semester={self.semester.name}'
 
     class Meta:
         unique_together = [['subject', 'semester']]
+
+
+# Create subjects on initial migrate
+@receiver(post_migrate)
+def populate_subjects(sender, **kwargs):
+    if sender.name == 'subjects':
+        root_path = os.path.join(settings.MEDIA_ROOT, 'records')
+        csv_files = [f for f in os.listdir(root_path) if f.endswith('.csv')]
+
+        for csv_file in csv_files:
+            csv_file_path = os.path.join(root_path, csv_file)
+            # Filename contains course of subjects
+            filename = os.path.splitext(csv_file)[0]
+            print('Reading subjects from', filename)
+            with open(csv_file_path, newline='') as csvfile:
+
+                reader = csv.reader(csvfile)
+                next(reader)  # Skip the header row
+
+                for row in reader:
+                    if not any(row):
+                        continue
+
+                    # Get subject information
+                    year_term = row[0].split('-')
+                    subject_year_level = year_term[0].strip()
+                    subject_semester = year_term[1].strip()
+                    subject_code = row[1]
+                    subject_name = row[2]
+
+                    # Skip ROTC/NSTP Subjects
+                    if (subject_code is 'NSTP102,ROTC/CWTS/LTS 2'):
+                        continue
+
+                    # Skip Practicum Subjects
+                    if ('PRACTICUM' in subject_name):
+                        continue
+
+                    # Skip Capstone Subjects
+                    if ('CAPSTONE' in subject_name):
+                        continue
+
+                    course = Course.objects.filter(
+                        name=filename).first()
+                    year_level = Year_Level.objects.filter(
+                        name=subject_year_level).first()
+                    semester = Semester.objects.filter(
+                        name=subject_semester).first()
+                    # Create the subject instance or get if it already exists
+                    SUBJECT = Subject.objects.get_or_create(
+                        name=subject_name,
+                        code=subject_code,
+
+                    )
+                    # Set the course, year level, and semester of the subject
+                    SUBJECT[0].courses.set([course])
+                    SUBJECT[0].year_levels.set([year_level])
+                    SUBJECT[0].semesters.set([semester])

stude/year_levels/migrations/0002_alter_year_level_name_alter_year_level_shortname.py

@@ -0,0 +1,23 @@
+# Generated by Django 4.2.3 on 2023-07-18 10:28
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('year_levels', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='year_level',
+            name='name',
+            field=models.CharField(max_length=64, unique=True),
+        ),
+        migrations.AlterField(
+            model_name='year_level',
+            name='shortname',
+            field=models.CharField(max_length=16, unique=True),
+        ),
+    ]

stude/year_levels/models.py

@@ -6,8 +6,8 @@ from django.dispatch import receiver
 
 
 class Year_Level(models.Model):
-    name = models.CharField(max_length=64)
+    name = models.CharField(max_length=64, unique=True)
-    shortname = models.CharField(max_length=16)
+    shortname = models.CharField(max_length=16, unique=True)
 
     def __str__(self):
         return self.name