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Diffstat (limited to 'docs/api-guide/serializers.md')
| -rw-r--r-- | docs/api-guide/serializers.md | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/docs/api-guide/serializers.md b/docs/api-guide/serializers.md index a1f0853e..d9fd4643 100644 --- a/docs/api-guide/serializers.md +++ b/docs/api-guide/serializers.md @@ -28,6 +28,8 @@ We'll declare a serializer that we can use to serialize and deserialize `Comment Declaring a serializer looks very similar to declaring a form: + from rest_framework import serializers + class CommentSerializer(serializers.Serializer): email = serializers.EmailField() content = serializers.CharField(max_length=200) @@ -59,6 +61,8 @@ We can now use `CommentSerializer` to serialize a comment, or list of comments. At this point we've translated the model instance into Python native datatypes. To finalise the serialization process we render the data into `json`. + from rest_framework.renderers import JSONRenderer + json = JSONRenderer().render(serializer.data) json # '{"email": "leila@example.com", "content": "foo bar", "created": "2012-08-22T16:20:09.822"}' @@ -67,6 +71,9 @@ At this point we've translated the model instance into Python native datatypes. Deserialization is similar. First we parse a stream into Python native datatypes... + from StringIO import StringIO + from rest_framework.parsers import JSONParser + stream = StringIO(json) data = JSONParser().parse(stream) @@ -403,7 +410,7 @@ You can change the field that is used for object lookups by setting the `lookup_ Not that the `lookup_field` will be used as the default on *all* hyperlinked fields, including both the URL identity, and any hyperlinked relationships. -For more specfic requirements such as specifying a different lookup for each field, you'll want to set the fields on the serializer explicitly. For example: +For more specific requirements such as specifying a different lookup for each field, you'll want to set the fields on the serializer explicitly. For example: class AccountSerializer(serializers.HyperlinkedModelSerializer): url = serializers.HyperlinkedIdentityField( @@ -429,7 +436,7 @@ You can create customized subclasses of `ModelSerializer` or `HyperlinkedModelSe Doing so should be considered advanced usage, and will only be needed if you have some particular serializer requirements that you often need to repeat. -## Dynamically modifiying fields +## Dynamically modifying fields Once a serializer has been initialized, the dictionary of fields that are set on the serializer may be accessed using the `.fields` attribute. Accessing and modifying this attribute allows you to dynamically modify the serializer. @@ -449,7 +456,7 @@ For example, if you wanted to be able to set which fields should be used by a se # Don't pass the 'fields' arg up to the superclass fields = kwargs.pop('fields', None) - # Instatiate the superclass normally + # Instantiate the superclass normally super(DynamicFieldsModelSerializer, self).__init__(*args, **kwargs) if fields: |