Создал модели и применил миграции. Добавил приложение в настройки

source/portal/settings.py

-"""
-Django settings for portal project.
-
-Generated by 'django-admin startproject' using Django 3.2.
-
-For more information on this file, see
-https://docs.djangoproject.com/en/3.2/topics/settings/
-
-For the full list of settings and their values, see
-https://docs.djangoproject.com/en/3.2/ref/settings/
-"""
-
+import os
 from pathlib import Path
 
+
 # Build paths inside the project like this: BASE_DIR / 'subdir'.
 BASE_DIR = Path(__file__).resolve().parent.parent
 
@@ -37,6 +27,7 @@ INSTALLED_APPS = [
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
+    'webapp'
 ]
 
 MIDDLEWARE = [
@@ -123,3 +114,7 @@ STATIC_URL = '/static/'
 # https://docs.djangoproject.com/en/3.2/ref/settings/#default-auto-field
 
 DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
+
+
+MEDIA_ROOT = os.path.join(BASE_DIR, 'media')
+MEDIA_URL = '/media/'
\ No newline at end of file

source/webapp/migrations/0001_initial.py

+# Generated by Django 3.2.8 on 2021-10-30 16:52
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Specialization',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('spec_name', models.CharField(max_length=100, verbose_name='spec_name')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Group',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('group_name', models.CharField(max_length=50, verbose_name='group_name')),
+                ('specialization', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='webapp.specialization', verbose_name='specialization')),
+                ('students', models.ManyToManyField(related_name='students', to=settings.AUTH_USER_MODEL, verbose_name='students')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Course',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('title', models.CharField(max_length=50, verbose_name='title')),
+                ('description', models.TextField(max_length=2000, verbose_name='description')),
+                ('start_date', models.DateField(verbose_name='Start date')),
+                ('group', models.ManyToManyField(related_name='groups', to='webapp.Group', verbose_name='group')),
+                ('teacher', models.ForeignKey(default=1, on_delete=django.db.models.deletion.SET_DEFAULT, to=settings.AUTH_USER_MODEL, verbose_name='teacher')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Class',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('title', models.CharField(max_length=100, verbose_name='title')),
+                ('description', models.TextField(max_length=2000, verbose_name='description')),
+                ('file', models.FileField(upload_to='uploads/')),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('course', models.ManyToManyField(related_name='courses', to='webapp.Course', verbose_name='course')),
+            ],
+        ),
+    ]

source/webapp/models.py

 from django.db import models
+from django.contrib.auth import get_user_model
+from django.contrib.auth.models import User 
 
-# Create your models here.
+
+# class Student(User):
+#     name = models.CharField(max_length=50, verbose_name='name')
+#     surname = models.CharField(max_length=50, verbose_name='name')
+#     group = models.ForeignKey('webapp.Group', on_delete=models.CASCADE, verbose_name='group')
+#     course = models.ManyToManyField('webapp.Course', verbose_name='course', related_name='courses')
+#     adviser = models.ForeignKey('webapp.Teacher', on_delete=models.CASCADE, verbose_name='adviser')
+#     admission_date = models.DateField(('Admission date'), auto_now=False, auto_now_add=False)
+#     end_date = models.DateField(('End date'), auto_now=False, auto_now_add=False)
+
+
+# class Teacher(models.Model):
+#     name = models.CharField(max_length=50, verbose_name='name')
+#     surname = models.CharField(max_length=50, verbose_name='name')
+
+
+class Course(models.Model):
+    title = models.CharField(max_length=50, verbose_name='title')
+    description = models.TextField(max_length=2000, verbose_name='description')
+    group = models.ManyToManyField('webapp.Group', verbose_name='group', related_name='groups')
+    teacher = models.ForeignKey(get_user_model(), on_delete=models.SET_DEFAULT, verbose_name='teacher', default=1)
+    start_date = models.DateField(('Start date'), auto_now=False, auto_now_add=False)
+
+    def __str__(self):
+        return self.title
+
+
+class Group(models.Model):
+    group_name = models.CharField(max_length=50, verbose_name='group_name')
+    specialization = models.ForeignKey('webapp.Specialization', on_delete=models.CASCADE, verbose_name='specialization')
+    students = models.ManyToManyField(get_user_model(), verbose_name='students', related_name='students')
+
+    def __str__(self):
+        return self.group_name
+
+
+class Class(models.Model):
+    title = models.CharField(max_length=100, verbose_name='title')
+    description = models.TextField(max_length=2000, verbose_name='description')
+    file = models.FileField(upload_to='uploads/')
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
+    course = models.ManyToManyField('webapp.Course', verbose_name='course', related_name='courses')
+
+    def __str__(self):
+        return self.title
+
+
+class Specialization(models.Model):
+    spec_name = models.CharField(max_length=100, verbose_name='spec_name')
+
+    def __str__(self):
+        return self.spec_name
+    
\ No newline at end of file

source/webapp/views.py → source/webapp/views/courses_views.py

 from django.shortcuts import render
 
-# Create your views here.
+
+def view(request):
+    return render(request, 'courses.html')
\ No newline at end of file