我们从Python开源项目中,提取了以下2个代码示例,用于说明如何使用rest_framework.serializers.RelatedField()。
def get_field_info(self, field): """ Given an instance of a serializer field, return a dictionary of metadata about it. """ field_info = OrderedDict() field_info['type'] = self.label_lookup[field] field_info['required'] = getattr(field, 'required', False) attrs = [ 'read_only', 'label', 'help_text', 'min_length', 'max_length', 'min_value', 'max_value' ] for attr in attrs: value = getattr(field, attr, None) if value is not None and value != '': field_info[attr] = force_text(value, strings_only=True) if getattr(field, 'child', None): field_info['child'] = self.get_field_info(field.child) elif getattr(field, 'fields', None): field_info['children'] = self.get_serializer_info(field) if (not field_info.get('read_only') and not isinstance(field, (serializers.RelatedField, serializers.ManyRelatedField)) and hasattr(field, 'choices')): field_info['choices'] = [ { 'value': choice_value, 'display_name': force_text(choice_name, strings_only=True) } for choice_value, choice_name in field.choices.items() ] return field_info
def field_to_schema(field): title = force_text(field.label) if field.label else '' description = force_text(field.help_text) if field.help_text else '' if isinstance(field, serializers.ListSerializer): child_schema = field_to_schema(field.child) return coreschema.Array( items=child_schema, title=title, description=description ) elif isinstance(field, serializers.Serializer): return coreschema.Object( properties=OrderedDict([ (key, field_to_schema(value)) for key, value in field.fields.items() ]), title=title, description=description ) elif isinstance(field, serializers.ManyRelatedField): return coreschema.Array( items=coreschema.String(), title=title, description=description ) elif isinstance(field, serializers.RelatedField): return coreschema.String(title=title, description=description) elif isinstance(field, serializers.MultipleChoiceField): return coreschema.Array( items=coreschema.Enum(enum=list(field.choices.keys())), title=title, description=description ) elif isinstance(field, serializers.ChoiceField): return coreschema.Enum( enum=list(field.choices.keys()), title=title, description=description ) elif isinstance(field, serializers.BooleanField): return coreschema.Boolean(title=title, description=description) elif isinstance(field, (serializers.DecimalField, serializers.FloatField)): return coreschema.Number(title=title, description=description) elif isinstance(field, serializers.IntegerField): return coreschema.Integer(title=title, description=description) if field.style.get('base_template') == 'textarea.html': return coreschema.String( title=title, description=description, format='textarea' ) return coreschema.String(title=title, description=description)