Feature/program courses

courses/apps.py

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+from django.apps import AppConfig
+
+
+class CoursesConfig(AppConfig):
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "courses"
+    verbose_name = "Курсы"

courses/migrations/0001_initial.py

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+# Generated by Django 4.2.11 on 2026-02-20 05:56
+
+import django.core.validators
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('partner_programs', '0016_partnerprogram_is_distributed_evaluation'),
+        ('files', '0007_auto_20230929_1727'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Course',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('title', models.CharField(max_length=45, verbose_name='Название курса')),
+                ('description', models.TextField(blank=True, default='', validators=[django.core.validators.MaxLengthValidator(600)], verbose_name='Описание')),
+                ('access_type', models.CharField(choices=[('all_users', 'Для всех пользователей'), ('program_members', 'Для участников программы'), ('subscription_stub', 'По подписке')], default='all_users', max_length=32, verbose_name='Тип доступа')),
+                ('start_date', models.DateField(blank=True, null=True, verbose_name='Дата старта')),
+                ('end_date', models.DateField(blank=True, null=True, verbose_name='Дата окончания')),
+                ('status', models.CharField(choices=[('draft', 'Черновик'), ('published', 'Опубликован'), ('completed', 'Завершен')], default='draft', max_length=16, verbose_name='Статус курса')),
+                ('is_completed', models.BooleanField(default=False, verbose_name='Курс завершен')),
+                ('completed_at', models.DateTimeField(blank=True, null=True, verbose_name='Дата завершения')),
+                ('datetime_created', models.DateTimeField(auto_now_add=True, verbose_name='Дата создания')),
+                ('datetime_updated', models.DateTimeField(auto_now=True, verbose_name='Дата обновления')),
+                ('avatar_file', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='course_avatars', to='files.userfile', verbose_name='Аватар курса')),
+                ('card_cover_file', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='course_card_covers', to='files.userfile', verbose_name='Обложка карточки курса')),
+                ('header_cover_file', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='course_header_covers', to='files.userfile', verbose_name='Обложка шапки курса')),
+                ('partner_program', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='courses', to='partner_programs.partnerprogram', verbose_name='Программа')),
+            ],
+            options={
+                'verbose_name': 'Курс',
+                'verbose_name_plural': 'Курсы',
+                'ordering': ('-datetime_created',),
+            },
+        ),
+    ]

courses/migrations/0002_course_courses_program_members_requires_program_and_more.py

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+# Generated by Django 4.2.11 on 2026-02-20 06:13
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('courses', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddConstraint(
+            model_name='course',
+            constraint=models.CheckConstraint(check=models.Q(models.Q(('access_type', 'program_members'), _negated=True), ('partner_program__isnull', False), _connector='OR'), name='courses_program_members_requires_program'),
+        ),
+        migrations.AddConstraint(
+            model_name='course',
+            constraint=models.CheckConstraint(check=models.Q(models.Q(('end_date__isnull', True), ('start_date__isnull', True)), models.Q(('end_date__isnull', False), ('start_date__isnull', False)), _connector='OR'), name='courses_dates_must_be_set_together'),
+        ),
+        migrations.AddConstraint(
+            model_name='course',
+            constraint=models.CheckConstraint(check=models.Q(('start_date__isnull', True), ('end_date__gte', models.F('start_date')), _connector='OR'), name='courses_end_date_gte_start_date'),
+        ),
+        migrations.AddConstraint(
+            model_name='course',
+            constraint=models.CheckConstraint(check=models.Q(models.Q(('status', 'completed'), _negated=True), ('is_completed', True), _connector='OR'), name='courses_completed_status_implies_flag'),
+        ),
+        migrations.AddConstraint(
+            model_name='course',
+            constraint=models.CheckConstraint(check=models.Q(('is_completed', False), ('status', 'completed'), _connector='OR'), name='courses_completed_flag_implies_status'),
+        ),
+    ]

courses/migrations/0003_coursemodule_and_more.py

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+# Generated by Django 4.2.11 on 2026-02-20 06:45
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('files', '0007_auto_20230929_1727'),
+        ('courses', '0002_course_courses_program_members_requires_program_and_more'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='CourseModule',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('title', models.CharField(max_length=40, verbose_name='Название модуля')),
+                ('start_date', models.DateField(verbose_name='Дата старта модуля')),
+                ('status', models.CharField(choices=[('draft', 'Черновик'), ('published', 'Опубликован')], default='draft', max_length=16, verbose_name='Статус модуля')),
+                ('order', models.PositiveIntegerField(default=1, verbose_name='Порядковый номер')),
+                ('datetime_created', models.DateTimeField(auto_now_add=True, verbose_name='Дата создания')),
+                ('datetime_updated', models.DateTimeField(auto_now=True, verbose_name='Дата обновления')),
+                ('avatar_file', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='course_module_avatars', to='files.userfile', verbose_name='Аватар модуля')),
+                ('course', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='modules', to='courses.course', verbose_name='Курс')),
+            ],
+            options={
+                'verbose_name': 'Модуль курса',
+                'verbose_name_plural': 'Модули курса',
+                'ordering': ('course_id', 'order', 'id'),
+            },
+        ),
+        migrations.AddConstraint(
+            model_name='coursemodule',
+            constraint=models.UniqueConstraint(fields=('course', 'order'), name='courses_module_unique_course_order'),
+        ),
+        migrations.AddConstraint(
+            model_name='coursemodule',
+            constraint=models.CheckConstraint(check=models.Q(('order__gte', 1)), name='courses_module_order_gte_1'),
+        ),
+    ]

courses/migrations/0004_courselesson_and_more.py

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+# Generated by Django 4.2.11 on 2026-02-20 06:50
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('courses', '0003_coursemodule_and_more'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='CourseLesson',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('title', models.CharField(max_length=45, verbose_name='Название урока')),
+                ('status', models.CharField(choices=[('draft', 'Черновик'), ('published', 'Опубликован')], default='draft', max_length=16, verbose_name='Статус урока')),
+                ('order', models.PositiveIntegerField(default=1, verbose_name='Порядковый номер')),
+                ('datetime_created', models.DateTimeField(auto_now_add=True, verbose_name='Дата создания')),
+                ('datetime_updated', models.DateTimeField(auto_now=True, verbose_name='Дата обновления')),
+                ('module', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='lessons', to='courses.coursemodule', verbose_name='Модуль курса')),
+            ],
+            options={
+                'verbose_name': 'Урок курса',
+                'verbose_name_plural': 'Уроки курса',
+                'ordering': ('module_id', 'order', 'id'),
+            },
+        ),
+        migrations.AddConstraint(
+            model_name='courselesson',
+            constraint=models.UniqueConstraint(fields=('module', 'order'), name='courses_lesson_unique_module_order'),
+        ),
+        migrations.AddConstraint(
+            model_name='courselesson',
+            constraint=models.CheckConstraint(check=models.Q(('order__gte', 1)), name='courses_lesson_order_gte_1'),
+        ),
+    ]