ó TR¹Nc@s¾dZddlmZddlmZddlmZmZddlmZde fd„ƒYZ de fd „ƒYZ d e fd „ƒYZ d e fd „ƒYZde fd„ƒYZdS(s; Module for abstract serializer/unserializer base classes. iÿÿÿÿ(tStringIO(tmodels(t smart_strt smart_unicode(t datetime_safetSerializationErrorcBseZdZRS(s,Something bad happened during serialization.(t__name__t __module__t__doc__(((sI/home/panlixing/Python_Projects/gaeseries/django/core/serializers/base.pyR stDeserializationErrorcBseZdZRS(s.Something bad happened during deserialization.(RRR(((sI/home/panlixing/Python_Projects/gaeseries/django/core/serializers/base.pyR st SerializercBsneZdZeZd„Zd„Zd„Zd„Zd„Z d„Z d„Z d„Z d „Z d „ZRS( s) Abstract serializer base class. cKs‰||_|jdtƒƒ|_|jdƒ|_|jdtƒ|_|jƒx |D]}|j|ƒxž|j j D]}|j ry|j dkrÎ|jdks¸|j|jkr|j||ƒqq |jdksó|jd |jkr |j||ƒq qyqyWxT|j jD]F}|j r|jdksJ|j|jkr`|j||ƒq`qqW|j|ƒqYW|jƒ|jƒS(s' Serialize a queryset. tstreamtfieldstuse_natural_keysiýÿÿÿN(toptionstgetRR tselected_fieldstFalseR tstart_serializationt start_objectt_metat local_fieldst serializetreltNonetattnamet handle_fieldthandle_fk_fieldt many_to_manythandle_m2m_fieldt end_objecttend_serializationtgetvalue(tselftquerysetRtobjtfield((sI/home/panlixing/Python_Projects/gaeseries/django/core/serializers/base.pyRs*     !% ! cCst|j|ƒƒS(s6 Convert a field's value to a string. (Rtvalue_to_string(R!R#R$((sI/home/panlixing/Python_Projects/gaeseries/django/core/serializers/base.pytget_string_value9scCs t‚dS(sA Called when serializing of the queryset starts. N(tNotImplementedError(R!((sI/home/panlixing/Python_Projects/gaeseries/django/core/serializers/base.pyR?scCsdS(s? Called when serializing of the queryset ends. N((R!((sI/home/panlixing/Python_Projects/gaeseries/django/core/serializers/base.pyREscCs t‚dS(s> Called when serializing of an object starts. N(R'(R!R#((sI/home/panlixing/Python_Projects/gaeseries/django/core/serializers/base.pyRKscCsdS(s< Called when serializing of an object ends. N((R!R#((sI/home/panlixing/Python_Projects/gaeseries/django/core/serializers/base.pyRQscCs t‚dS(sW Called to handle each individual (non-relational) field on an object. N(R'(R!R#R$((sI/home/panlixing/Python_Projects/gaeseries/django/core/serializers/base.pyRWscCs t‚dS(s6 Called to handle a ForeignKey field. N(R'(R!R#R$((sI/home/panlixing/Python_Projects/gaeseries/django/core/serializers/base.pyR]scCs t‚dS(s5 Called to handle a ManyToManyField. N(R'(R!R#R$((sI/home/panlixing/Python_Projects/gaeseries/django/core/serializers/base.pyRcscCs,tt|jddƒƒr(|jjƒSdS(sn Return the fully serialized queryset (or None if the output stream is not seekable). R N(tcallabletgetattrR RR (R!((sI/home/panlixing/Python_Projects/gaeseries/django/core/serializers/base.pyR is(RRRRtinternal_use_onlyRR&RRRRRRRR (((sI/home/panlixing/Python_Projects/gaeseries/django/core/serializers/base.pyR s         t DeserializercBs)eZdZd„Zd„Zd„ZRS(s+ Abstract base deserializer class. cKsA||_t|tƒr*t|ƒ|_n ||_tjƒdS(sA Init this serializer given a stream or a string N(Rt isinstancet basestringRR Rtget_apps(R!tstream_or_stringR((sI/home/panlixing/Python_Projects/gaeseries/django/core/serializers/base.pyt__init__vs   cCs|S(N((R!((sI/home/panlixing/Python_Projects/gaeseries/django/core/serializers/base.pyt__iter__„scCs t‚dS(s8Iteration iterface -- return the next item in the streamN(R'(R!((sI/home/panlixing/Python_Projects/gaeseries/django/core/serializers/base.pytnext‡s(RRRR0R1R2(((sI/home/panlixing/Python_Projects/gaeseries/django/core/serializers/base.pyR+qs  tDeserializedObjectcBs2eZdZdd„Zd„Zedd„ZRS(se A deserialized model. Basically a container for holding the pre-saved deserialized data along with the many-to-many data saved with the object. Call ``save()`` to save the object (with the many-to-many data) to the database; call ``save(save_m2m=False)`` to save just the object fields (and not touch the many-to-many stuff.) cCs||_||_dS(N(tobjecttm2m_data(R!R#R5((sI/home/panlixing/Python_Projects/gaeseries/django/core/serializers/base.pyR0—s cCs)d|jjj|jjj|jjfS(Ns"(R4Rt app_labelt object_nametpk(R!((sI/home/panlixing/Python_Projects/gaeseries/django/core/serializers/base.pyt__repr__›scCsqtjj|jd|dtƒ|jrd|rdx3|jjƒD]\}}t|j||ƒq>Wnd|_dS(Ntusingtraw( RtModelt save_baseR4tTrueR5titemstsetattrR(R!tsave_m2mR:t accessor_namet object_list((sI/home/panlixing/Python_Projects/gaeseries/django/core/serializers/base.pytsaveŸs N(RRRRR0R9R>RD(((sI/home/panlixing/Python_Projects/gaeseries/django/core/serializers/base.pyR3‹s   N(RRt django.dbRtdjango.utils.encodingRRt django.utilsRt ExceptionRR R4R R+R3(((sI/home/panlixing/Python_Projects/gaeseries/django/core/serializers/base.pyts^