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Added a YAML serializer built on PyYAML (http://pyyaml.org/). This se…

…rializer will only be enabled if PyYAML is installed, so I've not written any unit tests until I figure out how to make them work similarly. Still, the serializer is just a thin layer over the base Python serializer, and seems to Just Work.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@4712 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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commit 9f0c545addb02a91719adec336200a991599280f 1 parent 5295f54
@jacobian jacobian authored
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7 django/core/serializers/__init__.py
@@ -25,6 +25,13 @@
"json" : "django.core.serializers.json",
}
+# Check for PyYaml and register the serializer if it's available.
+try:
+ import yaml
+ BUILTIN_SERIALIZERS["yaml"] = "django.core.serializers.pyyaml"
+except ImportError:
+ pass
+
_serializers = {}
def register_serializer(format, serializer_module):
View
36 django/core/serializers/pyyaml.py
@@ -0,0 +1,36 @@
+"""
+YAML serializer.
+
+Requires PyYaml (http://pyyaml.org/), but that's checked for in __init__.
+"""
+
+import datetime
+from django.core.serializers.python import Serializer as PythonSerializer
+from django.core.serializers.python import Deserializer as PythonDeserializer
+try:
+ from cStringIO import StringIO
+except ImportError:
+ from StringIO import StringIO
+import yaml
+
+class Serializer(PythonSerializer):
+ """
+ Convert a queryset to JSON.
+ """
+ def end_serialization(self):
+ yaml.dump(self.objects, self.stream, **self.options)
+
+ def getvalue(self):
+ return self.stream.getvalue()
+
+def Deserializer(stream_or_string, **options):
+ """
+ Deserialize a stream or string of JSON data.
+ """
+ if isinstance(stream_or_string, basestring):
+ stream = StringIO(stream_or_string)
+ else:
+ stream = stream_or_string
+ for obj in PythonDeserializer(yaml.load(stream)):
+ yield obj
+
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