Python rest_framework.fields.ListField() Examples

The following are 2 code examples of rest_framework.fields.ListField(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module rest_framework.fields , or try the search function .
Example #1
Source File: serializers.py    From django-rest-framework-mongoengine with MIT License 5 votes vote down vote up 
def build_compound_field(self, field_name, model_field, child_field):
        if isinstance(model_field, me_fields.ListField):
            field_class = drf_fields.ListField
        elif isinstance(model_field, me_fields.DictField):
            field_class = drfm_fields.DictField
        else:
            return self.build_unknown_field(field_name, model_field.owner_document)

        field_kwargs = get_field_kwargs(field_name, model_field)
        field_kwargs.pop('model_field', None)

        if child_field is not None:
            field_kwargs['child'] = child_field

        return field_class, field_kwargs
Example #2
Source File: serializers.py    From django-rest-framework-mongoengine with MIT License 4 votes vote down vote up 
def recursive_save(self, validated_data, instance=None):
        """
        Recursively traverses validated_data and creates EmbeddedDocuments
        of the appropriate subtype from them.

        Returns Mongonengine model instance.
        """
        # me_data is an analogue of validated_data, but contains
        # mongoengine EmbeddedDocument instances for nested data structures
        # instead of OrderedDicts.
        #
        # For example:
        # validated_data = {'id:, "1", 'embed': OrderedDict({'a': 'b'})}
        # me_data = {'id': "1", 'embed': <EmbeddedDocument>}
        me_data = dict()

        for key, value in validated_data.items():
            try:
                field = self.fields[key]

                # for EmbeddedDocumentSerializers, call recursive_save
                if isinstance(field, EmbeddedDocumentSerializer):
                    me_data[key] = field.recursive_save(value) if value is not None else value # issue when the value is none 

                # same for lists of EmbeddedDocumentSerializers i.e.
                # ListField(EmbeddedDocumentField) or EmbeddedDocumentListField
                elif ((isinstance(field, serializers.ListSerializer) or
                       isinstance(field, serializers.ListField)) and
                      isinstance(field.child, EmbeddedDocumentSerializer)):
                    me_data[key] = []
                    for datum in value:
                        me_data[key].append(field.child.recursive_save(datum))

                # same for dicts of EmbeddedDocumentSerializers (or, speaking
                # in Mongoengine terms, MapField(EmbeddedDocument(Embed))
                elif (isinstance(field, drfm_fields.DictField) and
                      hasattr(field, "child") and
                      isinstance(field.child, EmbeddedDocumentSerializer)):
                    me_data[key] = {}
                    for datum_key, datum_value in value.items():
                        me_data[key][datum_key] = field.child.recursive_save(datum_value)

                # for regular fields just set value
                else:
                    me_data[key] = value

            except KeyError:  # this is dynamic data
                me_data[key] = value

        # create (if needed), save (if needed) and return mongoengine instance
        if not instance:
            instance = self.Meta.model(**me_data)
        else:
            for key, value in me_data.items():
                setattr(instance, key, value)

        if self._saving_instances:
            instance.save()

        return instance