168 lines
4.9 KiB
Python
168 lines
4.9 KiB
Python
from django.conf import settings
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from django.db.transaction import on_commit
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from rest_framework import generics, status
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from rest_framework.permissions import AllowAny
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from rest_framework.response import Response
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from utils.methods import get_permission_classes
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from utils.permissions import IsContentPageManager, IsCountryAdmin, IsEstablishmentManager, \
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IsProducerFoodInspector, IsEstablishmentAdministrator
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from . import tasks, models, serializers
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class ImageBaseView(generics.GenericAPIView):
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"""Base Image view."""
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model = models.Image
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queryset = models.Image.objects.all()
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serializer_class = serializers.ImageSerializer
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permission_classes = get_permission_classes(
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IsContentPageManager
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)
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class ImageListCreateView(ImageBaseView, generics.ListCreateAPIView):
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"""
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## List/Create view
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### *GET*
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#### Description
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Get paginated list of images, with ordering by field `modified` (descending)
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#### Response
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E.g.:
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```
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{
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"count": 40595,
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"next": 2,
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"previous": null,
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"results": [
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{
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"id": 47336,
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...
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}
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]
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}
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```
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### *POST*
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#### Description
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Upload an image on a server.
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##### Request
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Required:
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* file (`file`) - download file
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Available:
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* orientation (`enum`) - default: `null`
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```
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0 (Horizontal)
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1 (Vertical)
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```
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* title (`str`) - title of image file (default - `''`)
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* is_public (`bool`) - flag that responds for availability
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for displaying (default - `True`)
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* preview (`file`) - download preview file (default - `null`)
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* link (`str`) - mp4 or youtube video link (default - `null`)
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* order (`int`) - order number (default - `0`)
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##### Response
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E.g.:
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```
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{
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"id": 47336,
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...
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}
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```
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"""
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class MediaForEstablishmentView(ImageBaseView, generics.ListCreateAPIView):
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"""View for creating and retrieving certain establishment media."""
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pagination_class = None
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# permission_classes = (IsCountryAdmin, IsEstablishmentAdministrator, IsEstablishmentManager, IsProducerFoodInspector)
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permission_classes = (AllowAny, )
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serializer_class = serializers.EstablishmentGallerySerializer
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def get_queryset(self):
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return super().get_queryset().filter(establishment__pk=self.kwargs['establishment_id'])\
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.order_by('-establishment_gallery__is_main', '-order').prefetch_related('created_by',
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'establishment_gallery')
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class MediaUpdateView(ImageBaseView, generics.UpdateAPIView, generics.DestroyAPIView):
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"""View for updating media data"""
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serializer_class = serializers.EstablishmentGallerySerializer
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# permission_classes = (IsCountryAdmin, IsEstablishmentAdministrator, IsEstablishmentManager, IsProducerFoodInspector)
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permission_classes = (AllowAny, )
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def delete(self, request, *args, **kwargs):
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"""Override destroy view"""
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instance = self.get_object()
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if settings.USE_CELERY:
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on_commit(lambda: tasks.delete_image.delay(image_id=instance.id))
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else:
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on_commit(lambda: tasks.delete_image(image_id=instance.id))
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return Response(status=status.HTTP_204_NO_CONTENT)
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class ImageRetrieveDestroyView(ImageBaseView, generics.RetrieveDestroyAPIView):
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"""
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## Retrieve/Destroy view.
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### *GET*
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#### Description
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Retrieve serialized instance of Image model by image identifier.
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#### Response
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E.g.:
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```
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{
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"id": 1,
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...
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}
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```
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### *DELETE*
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#### Description
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Delete an image (DB record and storage object) by image identifier.
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##### Response
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```
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No content
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```
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"""
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def delete(self, request, *args, **kwargs):
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"""Override destroy view"""
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instance = self.get_object()
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if settings.USE_CELERY:
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on_commit(lambda: tasks.delete_image.delay(image_id=instance.id))
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else:
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on_commit(lambda: tasks.delete_image(image_id=instance.id))
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return Response(status=status.HTTP_204_NO_CONTENT)
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class CropImageCreateView(ImageBaseView, generics.CreateAPIView):
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"""
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## Create view
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### *POST*
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#### Description
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Create crop of an existing image by an identifier of image and parameters in request data.
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##### Request
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Required
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* width (`int`) - width of cropped image
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* height (`int`) - height of cropped image
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* crop (`str`) - crop coordinates (e.g.: `100px 200px`)
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Non-required
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* quality (`int`) - image quality, by default - `settings.THUMBNAIL_QUALITY` (85%)
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* certain_aspect (`str`) - certain aspect, by default -
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```
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(x2 - x1)
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x
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(y2 - y1)
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```
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> where x, y is coordinates parsed from `crop` parameter
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##### Response
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E.g.:
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```
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{
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"id": 1,
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...
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}
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```
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"""
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serializer_class = serializers.CropImageSerializer
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