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Diffstat (limited to 'docs/api-guide/serializers.md')
| -rw-r--r-- | docs/api-guide/serializers.md | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/docs/api-guide/serializers.md b/docs/api-guide/serializers.md index 8e9de10e..bbc8d019 100644 --- a/docs/api-guide/serializers.md +++ b/docs/api-guide/serializers.md @@ -308,6 +308,12 @@ By default, all the model fields on the class will be mapped to corresponding se Any relationships such as foreign keys on the model will be mapped to `PrimaryKeyRelatedField`. Other models fields will be mapped to a corresponding serializer field. +--- + +**Note**: When validation is applied to a `ModelSerializer`, both the serializer fields, and their corresponding model fields must correctly validate. If you have optional fields on your model, make sure to correctly set `blank=True` on the model field, as well as setting `required=False` on the serializer field. + +--- + ## Specifying which fields should be included If you only want a subset of the default fields to be used in a model serializer, you can do so using `fields` or `exclude` options, just as you would with a `ModelForm`. @@ -397,7 +403,7 @@ 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( @@ -423,7 +429,7 @@ 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. @@ -443,7 +449,7 @@ 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: |