Refactor models, seializer, urls, admin and views

recircle/image/admin.py

 from django.contrib import admin
 
-from image.models import Image
-from image.models import Disk
+from image.models import Image, Disk
 
 admin.site.register(Image)
 admin.site.register(Disk)

recircle/image/models.py

@@ -7,12 +7,14 @@ from interface_openstack.implementation.image.openstack_image_manager import Ope
 
 
 class Disk(models.Model):
-
     """A virtual disk.
     """
 
     name = models.CharField(
-        blank=True, max_length=100, verbose_name="name", help_text="Name of the disk"
+        blank=True,
+        max_length=100,
+        verbose_name="name",
+        help_text="Name of the disk"
     )
     remote_id = models.CharField(
         max_length=40,
@@ -23,7 +25,6 @@ class Disk(models.Model):
 
 
 class Image(models.Model):
-
     """A virtual image.
     """
 
@@ -61,48 +62,34 @@ class Image(models.Model):
     )
 
     @classmethod
-    def create(cls, name, description, remote_id, uploaded_by_user, created_by):
-        inst = cls(name=name, description=description, uploaded_by_user=uploaded_by_user,
-                   remote_id=remote_id, created_by=created_by)
-        inst.full_clean()
-        inst.save()
-
-        return inst
-
-    @classmethod
     def create_from_instance(cls, user, instance, description):
         interface = OSVirtualMachineManager(settings.CONNECTION)
         remote_image = interface.create_image(instance.remote_id)
         remote_id = remote_image.id
         name = remote_image.name
-        new_image = cls.create(
-            name=name,
+        new_image = Image.objects.create(name=name,
                                          remote_id=remote_id,
                                          created_by=user,
                                          uploaded_by_user=False,
-            description=description
-        )
-        for attr, value in new_image.__dict__.items():
-            setattr(remote_image, attr, value)
-        return remote_image
+                                         description=description)
+        return new_image
 
     @classmethod
     def create_from_user(cls, description, file_format, image_file, name, user):
         interface = OpenstackImageManager(settings.CONNECTION)
-        remote_image = interface.upload_file(name=name, path=image_file.temporary_file_path(),
+        remote_image = interface.upload_file(name=name,
+                                             path=image_file.temporary_file_path(),
                                              format=file_format)
-        new_image = cls.create(
-            name=name,
+        new_image = Image.objects.create(name=name,
                                          remote_id=remote_image.id,
                                          created_by=user,
                                          uploaded_by_user=True,
-            description=description
-        )
+                                         description=description)
         for attr, value in new_image.__dict__.items():
             setattr(remote_image, attr, value)
         return remote_image
 
-    def delete(self):
+    def delete(self, **kwargs):
         interface = OpenstackImageManager(settings.CONNECTION)
         if interface.delete(self.remote_id):
             super().delete()

recircle/image/serializers.py

@@ -11,7 +11,7 @@ class ImageUpdateSerializer(serializers.Serializer):
 class ImageSerializer(serializers.ModelSerializer):
     image_file = serializers.FileField(write_only=True)
     file_format = serializers.CharField(max_length=10)
-    size = serializers.IntegerField()
+    size = serializers.IntegerField(read_only=True)
 
     class Meta:
         model = Image

recircle/image/urls.py

 from rest_framework import routers
+
 from image import views
 
 router = routers.DefaultRouter()

recircle/image/views.py

-# from django.shortcuts import render
 from rest_framework.viewsets import ViewSet
 from rest_framework.response import Response
 from django.shortcuts import get_object_or_404
@@ -6,8 +5,7 @@ from rest_framework import status
 from django.core.exceptions import ObjectDoesNotExist
 
 from image.models import Image
-from image.serializers import ImageSerializer
-from image.serializers import ImageUpdateSerializer
+from image.serializers import ImageSerializer, ImageUpdateSerializer
 
 
 class ImageViewSet(ViewSet):
@@ -37,7 +35,6 @@ class ImageViewSet(ViewSet):
     def retrieve(self, request, pk=None):
         queryset = Image.objects.all()
         image = get_object_or_404(queryset, pk=pk)
-        serializer = ImageSerializer(instance=image)
         image = image.get()
         serializer = ImageSerializer(instance=image)
         return Response(serializer.data)