a Sic@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)selfrequestviewrS/var/www/html/django/DPS/env/lib/python3.9/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 ejdejdejdejdejdejdejdejdiZddZddZddZddZdS)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. fieldbooleanstringurlemailregexslugintegerfloatdecimaldatedatetimetimechoicezmultiple 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).0rendererrrr @z5SimpleMetadata.determine_metadata..ZrenderscSsg|] }|jqSrr()r*parserrrrr,Ar-Zparsesget_serializeractions)r get_view_nameget_view_descriptionrenderer_classesparser_classeshasattrdetermine_actions)r rrmetadatar0rrrr<s    z!SimpleMetadata.determine_metadatac Csi}ddht|j@D]}t|||_zpz4t|dr@||j|dkrZt|drZ|Wntjt t fyvYn0| }| |||<W||_q||_0q|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_methodsr rr5r:r;r APIExceptionrrr/get_serializer_info)r rrr0method serializerrrrr6Hs    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) isinstancer HiddenFieldget_field_info)r* field_namerr rrr,ls z6SimpleMetadata.get_serializer_info..)r5rBrfieldsitems)r rArrGrr?cs   z"SimpleMetadata.get_serializer_infocCst}|j||d<t|dd|d<gd}|D]0}t||d}|dur0|dkr0t|dd||<q0t|d dr||j|d <nt|d dr|||d <|d st|t j t j fst |d rdd|j D|d <|S)zl Given an instance of a serializer field, return a dictionary of metadata about it. typerequiredF) read_onlylabel help_text min_length max_length min_value max_valueNT strings_onlyrBrHchildrenrLchoicescSs"g|]\}}|t|dddqS)TrT)value display_namer)r*Z choice_valueZ choice_namerrrr,s z1SimpleMetadata.get_field_info..)r label_lookupgetattrrrErBr?getrCr RelatedFieldManyRelatedFieldr5rWrI)r r field_infoattrsattrrXrrrrErs*     zSimpleMetadata.get_field_infoN) rrr__doc__r rField BooleanField CharField UUIDFieldURLField EmailField RegexField SlugField IntegerField FloatField DecimalField DateField DateTimeField TimeField ChoiceFieldMultipleChoiceField FileField ImageField ListField DictField SerializerrZrr6r?rErrrrrs8 rN)rb collectionsrdjango.core.exceptionsr django.httprdjango.utils.encodingrrest_frameworkrrrest_framework.requestr "rest_framework.utils.field_mappingr r rrrrrs