v^]-@s dZddlmZddlmZddlmZeZGddde Z Gddde Z Gd d d e Z Gd d d e ZGd ddZGdddZGdddZGdddZddZddZddZdS)z; Module for abstract serializer/unserializer base classes. )StringIO)ObjectDoesNotExist)modelsc@seZdZdZdS)SerializerDoesNotExistz'The requested serializer was not found.N)__name__ __module__ __qualname____doc__r r >/tmp/pip-build-8lau8j11/django/django/core/serializers/base.pyr s rc@seZdZdZdS)SerializationErrorz,Something bad happened during serialization.N)rrrr r r r r r s r c@s(eZdZdZeddZdS)DeserializationErrorz.Something bad happened during deserialization.cCs|d||||fS)zs Factory method for creating a deserialization error which has a more explanatory message. z#%s: (%s:pk=%s) field_value was '%s'r )cls original_excmodelZfk field_valuer r r WithDataszDeserializationError.WithDataN)rrrr classmethodrr r r r r s r c@s"eZdZdZddZdS)M2MDeserializationErrorzCSomething bad happened during deserialization of a ManyToManyField.cCs||_||_dS)N)rpk)selfrrr r r __init__$s z M2MDeserializationError.__init__N)rrrr rr r r r r"s rc@s.eZdZdZddZddZdS) ProgressBarKcCs||_||_d|_dS)Nr)output total_count prev_done)rrrr r r r,s  zProgressBar.__init__cCs|js dS|d|j}||jd}|j|krBdS||_|jdkr`dnd}|jj|dd|d|j|d||jkr|jjd |jjdS) Nd [. ] )rrprogress_widthrwriteflush)rcountpercdonecrr r r update1s  /zProgressBar.updateN)rrrr&rr-r r r r r)s  rc@seZdZdZdZeZeZddddddddddd d d d Z d dZ ddZ ddZ ddZ ddZddZddZddZdS) Serializerz) Abstract serializer base class. FstreamNfieldsuse_natural_foreign_keysuse_natural_primary_keysprogress_output object_countrcKs ||_|dk r|n |j|_||_||_||_|j||} |jd|_xt |ddD]\} } |j | | j j } |jr| j j } | jr| jjr| nd}nd}x| j jD]}|js ||kr|jdkrL|jdks9|j|jkr|j| |q|jdksw|jdd|jkr|j| |qWxN| j jD]@}|jr|jdks|j|jkr|j| |qW|j| | j| |jod|_q}W|j|jS)z' Serialize a queryset. NTstartrF)options stream_classr/Zselected_fieldsr1r2progress_classstart_serializationfirst enumerate start_object_metaconcrete_modelr remote_fieldZ parent_linkZ local_fields serializeattname handle_fieldhandle_fk_fieldZlocal_many_to_manyhandle_m2m_field end_objectr-end_serializationgetvalue)rZquerysetr/r0r1r2r3r4r8Z progress_barr)objr@rZ pk_parentfieldr r r rBKs> !         $!+ !   zSerializer.serializecCstddS)zA Called when serializing of the queryset starts. zDsubclasses of Serializer must provide a start_serialization() methodN)NotImplementedError)rr r r r;yszSerializer.start_serializationcCsdS)z? Called when serializing of the queryset ends. Nr )rr r r rHszSerializer.end_serializationcCstddS)z> Called when serializing of an object starts. z=subclasses of Serializer must provide a start_object() methodN)rL)rrJr r r r>szSerializer.start_objectcCsdS)z< Called when serializing of an object ends. 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