1 from rest_framework.decorators import api_view
2 from rest_framework.response import Response
3 from rest_framework.reverse import reverse
4 from rest_framework import serializers
5 from rest_framework import generics
6 from rest_framework import status
7 from core.models import *
8 from django.forms import widgets
9 from rest_framework import filters
10 from django.conf.urls import patterns, url
13 Schema of the generator object:
14 all: Set of all Model objects
15 all_if(regex): Set of Model objects that match regex
18 plural: English plural of object name
19 camel: CamelCase version of object name
20 refs: list of references to other Model objects
21 props: list of properties minus refs
23 TODO: Deal with subnets
26 def get_REST_patterns():
28 url(r'^plstackapi/$', api_root),
29 {% for object in generator.all %}
30 url(r'plstackapi/{{ object.rest_name }}/$', {{ object.camel }}List.as_view(), name='{{ object.singular }}-list'),
31 url(r'plstackapi/{{ object.rest_name }}/(?P<pk>[a-zA-Z0-9\-]+)/$', {{ object.camel }}Detail.as_view(), name ='{{ object.singular }}-detail'),
36 def api_root(request, format=None):
38 {% for object in generator.all %}'{{ object.plural }}': reverse('{{ object }}-list', request=request, format=format),
42 # Based on serializers.py
44 {% for object in generator.all %}
46 class {{ object.camel }}Serializer(serializers.HyperlinkedModelSerializer):
47 id = serializers.Field()
48 {% for ref in object.refs %}
50 {{ ref.plural }} = serializers.HyperlinkedRelatedField(many=True, read_only=True, view_name='{{ ref }}-detail')
52 {{ ref }} = serializers.HyperlinkedRelatedField(read_only=True, view_name='{{ ref }}-detail')
56 model = {{ object.camel }}
57 fields = ({% for prop in object.props %}'{{ prop }}',{% endfor %}{% for ref in object.refs %}{%if ref.multi %}'{{ ref.plural }}'{% else %}'{{ ref }}'{% endif %},{% endfor %})
59 class {{ object.camel }}IdSerializer(serializers.ModelSerializer):
60 id = serializers.Field()
61 {% for ref in object.refs %}
63 {{ ref.plural }} = serializers.HyperlinkedRelatedField(many=True, read_only=True, view_name='{{ ref }}-detail')
65 {{ ref }} = serializers.HyperlinkedRelatedField(read_only=True, view_name='{{ ref }}-detail')
69 model = {{ object.camel }}
70 fields = ({% for prop in object.props %}'{{ prop }}',{% endfor %}{% for ref in object.refs %}{%if ref.multi %}'{{ ref.plural }}'{% else %}'{{ ref }}'{% endif %},{% endfor %})
76 {% for object in generator.all %}
77 {{ object.camel }}: {{ object.camel }}Serializer,
82 class PlanetStackRetrieveUpdateDestroyAPIView(generics.RetrieveUpdateDestroyAPIView):
84 # To handle fine-grained field permissions, we have to check can_update
85 # the object has been updated but before it has been saved.
87 def update(self, request, *args, **kwargs):
\r
88 partial = kwargs.pop('partial', False)
\r
89 self.object = self.get_object_or_none()
\r
91 serializer = self.get_serializer(self.object, data=request.DATA,
\r
92 files=request.FILES, partial=partial)
\r
94 if not serializer.is_valid():
\r
95 print "UpdateModelMixin: not serializer.is_valid"
\r
96 print serializer.errors
\r
97 return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
\r
100 self.pre_save(serializer.object)
\r
101 except ValidationError as err:
\r
102 # full_clean on model instance may be called in pre_save,
\r
103 # so we have to handle eventual errors.
\r
104 return Response(err.message_dict, status=status.HTTP_400_BAD_REQUEST)
\r
106 if serializer.object is not None:
\r
107 if not serializer.object.can_update(request.user):
\r
108 return Response(status=status.HTTP_400_BAD_REQUEST)
\r
110 if self.object is None:
\r
111 self.object = serializer.save(force_insert=True)
\r
112 self.post_save(self.object, created=True)
\r
113 return Response(serializer.data, status=status.HTTP_201_CREATED)
\r
115 self.object = serializer.save(force_update=True)
\r
116 self.post_save(self.object, created=False)
\r
117 return Response(serializer.data, status=status.HTTP_200_OK)
119 def destroy(self, request, *args, **kwargs):
120 obj = self.get_object()
121 if obj.can_update(request.user):
122 return super(generics.RetrieveUpdateDestroyAPIView, self).destroy(request, *args, **kwargs)
124 return Response(status=status.HTTP_400_BAD_REQUEST)
127 # Based on core/views/*.py
128 {% for object in generator.all %}
130 class {{ object.camel }}List(generics.ListCreateAPIView):
131 queryset = {{ object.camel }}.objects.select_related().all()
132 serializer_class = {{ object.camel }}Serializer
133 id_serializer_class = {{ object.camel }}IdSerializer
134 filter_backends = (filters.DjangoFilterBackend,)
135 filter_fields = ({% for prop in object.props %}'{{ prop }}',{% endfor %}{% for ref in object.refs %}{%if ref.multi %}'{{ ref.plural }}'{% else %}'{{ ref }}'{% endif %},{% endfor %})
137 def get_serializer_class(self):
138 no_hyperlinks = self.request.QUERY_PARAMS.get('no_hyperlinks', False)
140 return self.id_serializer_class
142 return self.serializer_class
144 def get_queryset(self):
145 return {{ object.camel }}.select_by_user(self.request.user)
147 def create(self, request, *args, **kwargs):
148 obj = {{ object.camel }}(**request.DATA)
149 obj.caller = request.user
150 if obj.can_update(request.user):
151 return super({{ object.camel }}List, self).create(request, *args, **kwargs)
153 raise Exception("failed obj.can_update")
155 ret = super({{ object.camel }}List, self).create(request, *args, **kwargs)
156 if (ret.status_code%100 != 200):
157 raise Exception(ret.data)
162 class {{ object.camel }}Detail(PlanetStackRetrieveUpdateDestroyAPIView):
163 queryset = {{ object.camel }}.objects.select_related().all()
164 serializer_class = {{ object.camel }}Serializer
165 id_serializer_class = {{ object.camel }}IdSerializer
167 def get_serializer_class(self):
168 no_hyperlinks = self.request.QUERY_PARAMS.get('no_hyperlinks', False)
170 return self.id_serializer_class
172 return self.serializer_class
174 def get_queryset(self):
175 return {{ object.camel }}.select_by_user(self.request.user)
177 # update() is handled by PlanetStackRetrieveUpdateDestroyAPIView
179 # destroy() is handled by PlanetStackRetrieveUpdateDestroyAPIView