LIL-102. Создание модели урок

apps/course/admin.py

@@ -1,6 +1,6 @@
 from django.contrib import admin
 
-from .models import Course, Category
+from .models import Course, Category, Lesson
 
 
 @admin.register(Course)
@@ -20,3 +20,11 @@ class CourseAdmin(admin.ModelAdmin):
 @admin.register(Category)
 class CategoryAdmin(admin.ModelAdmin):
     pass
+
+
+@admin.register(Lesson)
+class LessonAdmin(admin.ModelAdmin):
+    list_display = (
+        'title',
+        'course',
+    )

apps/course/migrations/0006_lesson.py

@@ -0,0 +1,29 @@
+# Generated by Django 2.0.1 on 2018-01-29 14:07
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('course', '0005_course_from_author'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Lesson',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('title', models.CharField(max_length=100, verbose_name='Название урока')),
+                ('short_description', models.TextField(verbose_name='Краткое описание курса')),
+                ('cover', models.ImageField(upload_to='lessons', verbose_name='Фон урока')),
+                ('course', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='lessons', to='course.Course')),
+            ],
+            options={
+                'verbose_name': 'Урок',
+                'verbose_name_plural': 'Уроки',
+                'ordering': ('-title',),
+            },
+        ),
+    ]

apps/course/migrations/0007_auto_20180129_1433.py

@@ -0,0 +1,17 @@
+# Generated by Django 2.0.1 on 2018-01-29 14:33
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('course', '0006_lesson'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='lesson',
+            options={'ordering': ('title',), 'verbose_name': 'Урок', 'verbose_name_plural': 'Уроки'},
+        ),
+    ]

apps/course/migrations/0008_auto_20180129_1436.py

@@ -0,0 +1,25 @@
+# Generated by Django 2.0.1 on 2018-01-29 14:36
+
+from django.db import migrations, models
+import django.utils.timezone
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('course', '0007_auto_20180129_1433'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='lesson',
+            name='created_at',
+            field=models.DateTimeField(auto_now_add=True, default=django.utils.timezone.now),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name='lesson',
+            name='update_at',
+            field=models.DateTimeField(auto_now=True),
+        ),
+    ]

apps/course/models.py

@@ -62,6 +62,9 @@ class Course(models.Model):
             return True
         return False
 
+    def __str__(self):
+        return self.title
+
     class Meta:
         verbose_name = "Курс"
         verbose_name_plural = "Курсы"
@@ -77,3 +80,21 @@ class Category(models.Model):
     class Meta:
         verbose_name = "Категория"
         verbose_name_plural = "Категории"
+
+
+class Lesson(models.Model):
+    title = models.CharField("Название урока", max_length=100)
+    short_description = models.TextField("Краткое описание курса")
+    course = models.ForeignKey(Course, on_delete=models.CASCADE, related_name='lessons')
+    cover = models.ImageField("Фон урока", upload_to='lessons')
+
+    created_at = models.DateTimeField(auto_now_add=True)
+    update_at = models.DateTimeField(auto_now=True)
+
+    def __str__(self):
+        return self.title
+
+    class Meta:
+        verbose_name = "Урок"
+        verbose_name_plural = "Уроки"
+        ordering = ('title',)