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https://github.com/encode/django-rest-framework.git
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Fix yaml rendering
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5c7f3e23ee
commit
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@ -18,7 +18,7 @@ from rest_framework.utils import encoders
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from rest_framework.utils.breadcrumbs import get_breadcrumbs
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from rest_framework.utils.mediatypes import get_media_type_params
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from rest_framework import VERSION
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from rest_framework import serializers
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from rest_framework import serializers, parsers
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class BaseRenderer(object):
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@ -125,6 +125,7 @@ class YAMLRenderer(BaseRenderer):
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media_type = 'application/yaml'
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format = 'yaml'
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encoder = encoders.SafeDumper
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def render(self, data, accepted_media_type=None, renderer_context=None):
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"""
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@ -133,7 +134,7 @@ class YAMLRenderer(BaseRenderer):
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if data is None:
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return ''
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return yaml.safe_dump(data)
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return yaml.dump(data, stream=None, Dumper=self.encoder)
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class HTMLRenderer(BaseRenderer):
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@ -240,7 +241,8 @@ class BrowsableAPIRenderer(BaseRenderer):
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if method == 'DELETE' or method == 'OPTIONS':
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return True # Don't actually need to return a form
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if not getattr(view, 'get_serializer', None):
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if (not getattr(view, 'get_serializer', None) or
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not parsers.FormParser in getattr(view, 'parser_classes')):
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media_types = [parser.media_type for parser in view.parser_classes]
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return self.get_generic_content_form(media_types)
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@ -3,8 +3,11 @@ Helper classes for parsers.
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"""
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import datetime
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import decimal
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import types
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from django.utils import simplejson as json
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from django.utils.datastructures import SortedDict
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from rest_framework.compat import timezone
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from rest_framework.serializers import DictWithMetadata, SortedDictWithMetadata
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class JSONEncoder(json.JSONEncoder):
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@ -36,3 +39,53 @@ class JSONEncoder(json.JSONEncoder):
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elif hasattr(o, '__iter__'):
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return [i for i in o]
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return super(JSONEncoder, self).default(o)
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try:
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import yaml
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except ImportError:
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SafeDumper = None
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else:
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# Adapted from http://pyyaml.org/attachment/ticket/161/use_ordered_dict.py
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class SafeDumper(yaml.SafeDumper):
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"""
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Handles decimals as strings.
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Handles SortedDicts as usual dicts, but preserves field order, rather
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than the usual behaviour of sorting the keys.
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"""
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def represent_decimal(self, data):
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return self.represent_scalar('tag:yaml.org,2002:str', str(data))
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def represent_mapping(self, tag, mapping, flow_style=None):
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value = []
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node = yaml.MappingNode(tag, value, flow_style=flow_style)
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if self.alias_key is not None:
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self.represented_objects[self.alias_key] = node
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best_style = True
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if hasattr(mapping, 'items'):
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mapping = list(mapping.items())
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if not isinstance(mapping, SortedDict):
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mapping.sort()
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for item_key, item_value in mapping:
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node_key = self.represent_data(item_key)
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node_value = self.represent_data(item_value)
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if not (isinstance(node_key, yaml.ScalarNode) and not node_key.style):
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best_style = False
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if not (isinstance(node_value, yaml.ScalarNode) and not node_value.style):
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best_style = False
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value.append((node_key, node_value))
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if flow_style is None:
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if self.default_flow_style is not None:
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node.flow_style = self.default_flow_style
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else:
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node.flow_style = best_style
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return node
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SafeDumper.add_representer(SortedDict,
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yaml.representer.SafeRepresenter.represent_dict)
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SafeDumper.add_representer(DictWithMetadata,
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yaml.representer.SafeRepresenter.represent_dict)
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SafeDumper.add_representer(SortedDictWithMetadata,
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yaml.representer.SafeRepresenter.represent_dict)
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SafeDumper.add_representer(types.GeneratorType,
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yaml.representer.SafeRepresenter.represent_list)
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