U ƽb@s~dZddlmZddlmZddlmZddlmZddl m Z m Z ddl m Z ddlmZGd d d ZGd d d eZd S)aL The metadata API is used to allow customization of how `OPTIONS` requests are handled. We currently provide a single default implementation that returns some fairly ad-hoc information about the view. Future implementations might use JSON schema or other definitions in order to return this information in a more standardized way. ) OrderedDict)PermissionDenied)Http404 force_str) exceptions serializers) clone_request)ClassLookupDictc@seZdZddZdS) BaseMetadatacCs tddS)zx Return a dictionary of metadata about the view. Used to return responses for OPTIONS requests. z).determine_metadata() must be overridden.N)NotImplementedError)selfrequestviewr;/tmp/pip-unpacked-wheel-iohwuy7z/rest_framework/metadata.pydetermine_metadataszBaseMetadata.determine_metadataN)__name__ __module__ __qualname__rrrrrr sr c-@seZdZdZeejdejdejdej dej dej dej dej dejdejd ejd ejd ejd ejd ejdejdejdejdejdejdejdejdiZddZddZddZddZ dS)SimpleMetadataz This is the default metadata implementation. It returns an ad-hoc set of information about the view. There are not any formalized standards for `OPTIONS` responses for us to base this on. fieldbooleanstringurlemailregexZslugintegerfloatdecimaldatedatetimetimechoicezmultiple choicez file uploadz image uploadlistz nested objectcCslt}||d<||d<dd|jD|d<dd|jD|d<t|drh|||}|rh||d <|S) Nname descriptioncSsg|] }|jqSr media_type).0Zrendererrrr Asz5SimpleMetadata.determine_metadata..ZrenderscSsg|] }|jqSrr')r)parserrrrr*BsZparsesget_serializeractions)rZ get_view_nameZget_view_descriptionZrenderer_classesZparser_classeshasattrdetermine_actions)r rrmetadatar-rrrr=s    z!SimpleMetadata.determine_metadatac Csi}ddht|j@D]}t|||_zlz4t|dr@||j|dkrZt|drZ|Wntjt t fk rxYnX| }| |||<W5||_Xq|S)z For generic class based views we return information about the fields that are accepted for 'PUT' and 'POST' methods. PUTPOSTcheck_permissions get_object) setZallowed_methodsr rr.r3r4rZ APIExceptionrrr,get_serializer_info)r rrr-method serializerrrrr/Is     z SimpleMetadata.determine_actionscs,t|dr|j}tfdd|jDS)zn Given an instance of a serializer, return a dictionary of metadata about its fields. childcs*g|]"\}}t|tjs||fqSr) isinstancerZ HiddenFieldget_field_info)r) field_namerr rrr*ms z6SimpleMetadata.get_serializer_info..)r.r9rfieldsitems)r r8rr=rr6ds   z"SimpleMetadata.get_serializer_infocCst}|j||d<t|dd|d<dddddd d g}|D]0}t||d }|d k r:|d kr:t|d d||<q:t|dd r||j|d<nt|dd r|||d<|dst|t j t j fst |drdd|j D|d<|S)zl Given an instance of a serializer field, return a dictionary of metadata about it. typerequiredFZ read_onlylabel help_textZ min_length max_lengthZ min_valueZ max_valueNTZ strings_onlyr9r>childrenchoicescSs"g|]\}}|t|dddqS)TrF)valueZ display_namer)r)Z choice_valueZ choice_namerrrr*s z1SimpleMetadata.get_field_info..)r label_lookupgetattrrr;r9r6getr:rZ RelatedFieldZManyRelatedFieldr.rHr?)r rZ field_infoattrsattrrIrrrr;ss8     zSimpleMetadata.get_field_infoN)!rrr__doc__r rZFieldZ BooleanFieldZNullBooleanFieldZ CharFieldZ UUIDFieldZURLFieldZ EmailFieldZ RegexFieldZ SlugFieldZ IntegerFieldZ FloatFieldZ DecimalFieldZ DateFieldZ DateTimeFieldZ TimeFieldZ ChoiceFieldZMultipleChoiceFieldZ FileFieldZ ImageFieldZ ListFieldZ DictField SerializerrJrr/r6r;rrrrrsf rN)rO collectionsrZdjango.core.exceptionsrZ django.httprZdjango.utils.encodingrZrest_frameworkrrZrest_framework.requestr Z"rest_framework.utils.field_mappingr r rrrrrs