U ߎi@srdZddlmZddlmZddlmZddlmZm Z ddl m Z ddl m Z Gdd 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. )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)selfrequestviewrU/var/www/html/IITS/school/venv/lib/python3.8/site-packages/rest_framework/metadata.pydetermine_metadataszBaseMetadata.determine_metadataN)__name__ __module__ __qualname__rrrrrr sr c-@seZdZdZeejdejdejdej dej dej dej dej dejd ejd ejd ejd ejd ejdejdejdejdejdejdejdejdejdiZddZddZddZddZ 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. fieldbooleanstringurlemailregexslugintegerfloatdecimaldatedatetimetimedurationchoicezmultiple choicez file uploadz image uploadlistz nested objectcCsT||dd|jDdd|jDd}t|drP|||}|rP||d<|S)NcSsg|] }|jqSr media_type).0rendererrrr ?sz5SimpleMetadata.determine_metadata..cSsg|] }|jqSrr&)r(parserrrrr*@s)name descriptionZrendersZparsesget_serializeractions) get_view_nameget_view_descriptionrenderer_classesparser_classeshasattrdetermine_actions)r r rmetadatar/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) setallowed_methodsrr r4r9r:r APIExceptionrrr.get_serializer_info)r r rr/method serializerrrrr5Hs     z SimpleMetadata.determine_actionscs(t|dr|j}fdd|jDS)zn Given an instance of a serializer, return a dictionary of metadata about its fields. childcs(i|] \}}t|tjs||qSr) isinstancer HiddenFieldget_field_info)r( field_namerr rr ls z6SimpleMetadata.get_serializer_info..)r4rAfieldsitems)r r@rrFrr>cs   z"SimpleMetadata.get_serializer_infoc Cs|j|t|ddd}dddddd d d d g }|D]0}t||d }|d k r2|dkr2t|dd||<q2t|dd r||j|d<nt|dd r|||d<|dst|tj tj fst |drdd|j D|d<|S)zl Given an instance of a serializer field, return a dictionary of metadata about it. requiredF)typerJ read_onlylabel help_text min_length max_length min_value max_value max_digitsdecimal_placesNT strings_onlyrArHchildrenchoicescSs"g|]\}}|t|dddqS)TrV)value display_namer)r(Z choice_valueZ choice_namerrrr*s z1SimpleMetadata.get_field_info..) label_lookupgetattrrrDrAr>getrBr RelatedFieldManyRelatedFieldr4rYrI)r r field_infoattrsattrrZrrrrDrs<      zSimpleMetadata.get_field_infoN)!rrr__doc__r rField BooleanField CharField UUIDFieldURLField EmailField RegexField SlugField IntegerField FloatField DecimalField DateField DateTimeField TimeField DurationField ChoiceFieldMultipleChoiceField FileField ImageField ListField DictField Serializerr\rr5r>rDrrrrrsf rN)rddjango.core.exceptionsr django.httprdjango.utils.encodingrrest_frameworkrrrest_framework.requestr"rest_framework.utils.field_mappingr r rrrrrs