LIL-224. Add datable fields to ImageObject model

api/v1/serializers.py

@@ -14,7 +14,7 @@ User = get_user_model()
 
 class ImageObjectSerializer(serializers.ModelSerializer):
     image = Base64ImageField(
-        required=True, allow_empty_file=False, allow_null=False,
+        required=True, allow_empty_file=False, allow_null=False, read_only=False,
     )
 
     class Meta:
@@ -22,10 +22,14 @@ class ImageObjectSerializer(serializers.ModelSerializer):
         fields = (
             'id',
             'image',
+            'created_at',
+            'update_at',
         )
 
         read_only_fields = (
             'id',
+            'created_at',
+            'update_at',
         )
 
 

apps/content/migrations/0006_auto_20180208_0551.py

@@ -0,0 +1,29 @@
+# Generated by Django 2.0.2 on 2018-02-08 05:51
+
+from django.db import migrations, models
+import django.utils.timezone
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('content', '0005_auto_20180208_0520'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='imageobject',
+            options={'ordering': ('-created_at',), 'verbose_name': 'Объект изображения', 'verbose_name_plural': 'Объекты изображения'},
+        ),
+        migrations.AddField(
+            model_name='imageobject',
+            name='created_at',
+            field=models.DateTimeField(auto_now_add=True, default=django.utils.timezone.now),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name='imageobject',
+            name='update_at',
+            field=models.DateTimeField(auto_now=True),
+        ),
+    ]

apps/content/models.py

@@ -8,6 +8,14 @@ from apps.course.models import Course, Lesson
 class ImageObject(models.Model):
     image = models.ImageField('Изображение', upload_to='content/imageobject')
 
+    created_at = models.DateTimeField(auto_now_add=True)
+    update_at = models.DateTimeField(auto_now=True)
+
+    class Meta:
+        verbose_name = 'Объект изображения'
+        verbose_name_plural = 'Объекты изображения'
+        ordering = ('-created_at',)
+
 
 class Content(PolymorphicModel):
     course = models.ForeignKey(