3 Ah`@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)selfrequestviewrF/tmp/pip-build-9m32_hle/djangorestframework/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}|j|d<|j|d<dd|jD|d<dd|jD|d<t|drh|j||}|rh||d <|S) Nname descriptioncSsg|] }|jqSr) media_type).0Zrendererrrr Asz5SimpleMetadata.determine_metadata..ZrenderscSsg|] }|jqSr)r&)r'parserrrrr(BsZparsesget_serializeractions)rZ get_view_nameZget_view_descriptionZrenderer_classesZparser_classeshasattrdetermine_actions)r r rmetadatar+rrrr=s    z!SimpleMetadata.determine_metadatacCsi}xddht|j@D]}t|||_zly4t|drB|j|j|dkr\t|dr\|jWntjt t fk rzYnX|j }|j |||<Wd||_XqW|S)z For generic class based views we return information about the fields that are accepted for 'PUT' and 'POST' methods. PUTPOSTcheck_permissions get_objectN) setZallowed_methodsrr r,r1r2rZ APIExceptionrrr*get_serializer_info)r r rr+method serializerrrrr-Is     z SimpleMetadata.determine_actionscs,t|dr|j}tfdd|jjDS)zn Given an instance of a serializer, return a dictionary of metadata about its fields. childcs*g|]"\}}t|tjs|j|fqSr) isinstancerZ HiddenFieldget_field_info)r' field_namer)r rrr(nsz6SimpleMetadata.get_serializer_info..)r,r7rfieldsitems)r r6r)r rr4ds   z"SimpleMetadata.get_serializer_infocCst}|j||d<t|dd|d<dddddd d g}x8|D]0}t||d }|d k r<|d kr.)r label_lookupgetattrrr9r7r4getr8rZ RelatedFieldZManyRelatedFieldr,rEr<)r rZ field_infoattrsattrrFrrrr9ss(      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 SerializerrGrr-r4r9rrrrrs8  rN)rL collectionsrZdjango.core.exceptionsrZ django.httprZdjango.utils.encodingrZrest_frameworkrrZrest_framework.requestrZ"rest_framework.utils.field_mappingr r rrrrrs