API updates

- Move all generic API classes definitions to the rest_api.generics
module.
- Update API status code on insufficient access for the apps:
indexes, parsing, documents, metadata, ocr, permission,
user management.
- Update API tests.

Signed-off-by: Roberto Rosario <roberto.rosario@mayan-edms.com>

mayan/apps/document_indexing/api_views.py

@@ -2,14 +2,11 @@ from __future__ import absolute_import, unicode_literals
 
 from django.shortcuts import get_object_or_404
 
-from rest_framework import generics
-
 from mayan.apps.acls.models import AccessControlList
 from mayan.apps.documents.models import Document
 from mayan.apps.documents.permissions import permission_document_view
 from mayan.apps.documents.serializers import DocumentSerializer
-from mayan.apps.rest_api.filters import MayanObjectPermissionsFilter
-from mayan.apps.rest_api.permissions import MayanPermission
+from mayan.apps.rest_api import generics
 
 from .models import Index, IndexInstanceNode, IndexTemplateNode
 from .permissions import (
@@ -26,10 +23,8 @@ class APIIndexListView(generics.ListCreateAPIView):
     get: Returns a list of all the defined indexes.
     post: Create a new index.
     """
-    filter_backends = (MayanObjectPermissionsFilter,)
     mayan_object_permissions = {'GET': (permission_document_indexing_view,)}
     mayan_view_permissions = {'POST': (permission_document_indexing_create,)}
-    permission_classes = (MayanPermission,)
     queryset = Index.objects.all()
     serializer_class = IndexSerializer
 
@@ -47,7 +42,6 @@ class APIIndexView(generics.RetrieveUpdateDestroyAPIView):
         'PATCH': (permission_document_indexing_edit,),
         'DELETE': (permission_document_indexing_delete,)
     }
-    permission_classes = (MayanPermission,)
     queryset = Index.objects.all()
     serializer_class = IndexSerializer
 
@@ -57,7 +51,6 @@ class APIIndexNodeInstanceDocumentListView(generics.ListAPIView):
     Returns a list of all the documents contained by a particular index node
     instance.
     """
-    filter_backends = (MayanObjectPermissionsFilter,)
     mayan_object_permissions = {'GET': (permission_document_view,)}
     serializer_class = DocumentSerializer
 
@@ -78,7 +71,6 @@ class APIIndexTemplateListView(generics.ListAPIView):
     """
     get: Returns a list of all the template nodes for the selected index.
     """
-    filter_backends = (MayanObjectPermissionsFilter,)
     mayan_object_permissions = {'GET': (permission_document_indexing_view,)}
     serializer_class = IndexTemplateNodeSerializer
 
@@ -90,23 +82,20 @@ class APIIndexTemplateView(generics.RetrieveUpdateDestroyAPIView):
     patch: Partially edit an index template node.
     put: Edit an index template node.
     """
-    serializer_class = IndexTemplateNodeSerializer
-    queryset = IndexTemplateNode.objects.all()
-
-    permission_classes = (MayanPermission,)
     mayan_object_permissions = {
         'GET': (permission_document_indexing_view,),
         'PUT': (permission_document_indexing_edit,),
         'PATCH': (permission_document_indexing_edit,),
         'DELETE': (permission_document_indexing_edit,)
     }
+    queryset = IndexTemplateNode.objects.all()
+    serializer_class = IndexTemplateNodeSerializer
 
 
 class APIDocumentIndexListView(generics.ListAPIView):
     """
     Returns a list of all the indexes to which a document belongs.
     """
-    filter_backends = (MayanObjectPermissionsFilter,)
     mayan_object_permissions = {'GET': (permission_document_indexing_view,)}
     serializer_class = IndexInstanceNodeSerializer