R jkRSSKJrJr SSKJrJr SSKJr SSKJ r J r SSK J r J r JrJr SSKJrJrJr "SS\ 5r"S S \ 5rS rS rS rSrSrS\lSrS\lSrSr"SS5rg))Counter defaultdict)partialreduce)chain) attrgetteror_)IntegrityError connectionsmodels transaction) query_utilssignalssqlc(^\rSrSrU4SjrSrU=r$)ProtectedError c0>X l[TU] X5 gN)protected_objectssuper__init__)selfmsgr __class__s ED:\diplom_project\venv\Lib\site-packages\django/db/models/deletion.pyrProtectedError.__init__ s!2 0)r__name__ __module__ __qualname____firstlineno__r__static_attributes__ __classcell__rs@rrr s 11rrc(^\rSrSrU4SjrSrU=r$)RestrictedErrorc0>X l[TU] X5 gr)restricted_objectsrr)rrr+rs rrRestrictedError.__init__s"4 1r)r+rr&s@rr(r(s 22rr(c URUURRURURSS9 UR(a7[ UR R(dURUSU5 ggg)NF)source source_attrnullablefail_on_restricted) collect remote_fieldmodelnamenullr featurescan_defer_constraint_checksadd_field_update collectorfieldsub_objsusings rCASCADEr?sn !!''JJ  zz+e,55QQ""5$9Rzrc [SURRR<SUSRR<SUR <S3U5e)Nz'Cannot delete some instances of model 'z@' because they are referenced through a protected foreign key: 'r.')rr3r4r rr5r:s rPROTECTrC"sJ     $ $ - - QK ! ! * * JJ     rcURX5 URURRUR5 gr)add_restricted_objectsadd_dependencyr3r4r:s rRESTRICTrG/s0 $$U5 U//55u{{Crcf^[T5(aU4SjnOU4SjnU4SjUlSUlU$)Nc6>URUT"5U5 grr9r;r<r=r>values r set_on_deleteSET..set_on_delete7s  & &uegx @rc,>URUTU5 grrJrKs rrMrN<s  & &ueX >rc>ST404$)Nzdjango.db.models.SET)rLsrSET..?s)?%2(NrT)callable deconstruct lazy_sub_objs)rLrMs` rSETrW4s0 A  ?!OM"&M rc*URUSU5 grrJr:s rSET_NULLrYDs udH5rTcDURXR5U5 gr)r9 get_defaultr:s r SET_DEFAULTr\Ks u&7&7&98DrcgrrQr:s r DO_NOTHINGr^Rsrc.SURSS95$)Nc3# UHQnUR(dMUR(aM)UR(dUR(dMMUv MS g7fr) auto_createdconcrete one_to_one one_to_many).0fs r 4get_candidate_relations_to_delete..Ys> 5A >> "#** 23,,!-- 5sAA A AT)include_hidden) get_fields)optss r!get_candidate_relations_to_deleterlVs 5 rc\rSrSrSSjrSSjrSSjrSrSrSr S r S r SS jr S r SS jrSrSrSrSrSrg) Collector`NcXlX l[[5Ul[[ 5Ul[[[[55Ul/Ul [[5Ul gr) r>originrsetdatalist field_updatesrr+ fast_deletes dependencies)rr>rqs rrCollector.__init__asR  $ (."-gk3.G"H(,rcU(d/$/nUSRnURUnUHnX;dM URU5 M URU5 UbU(dUR X&US9 U$)a Add 'objs' to the collection of objects to be deleted. If the call is the result of a cascade, 'source' should be the model that caused it, and 'nullable' should be set to True if the relation can be null. Return a list of all objects that were not already collected. rreverse_dependency)rrsappendupdaterF) robjsr.r0r{new_objsr4 instancesobjs radd Collector.addvs}IQ!!IIe$ C#$ "  h   BT  UrcU(aX!p!URURRRURR5 URR X RR 55 gr)rw_metaconcrete_modelrrs setdefaultdefault_factory)rr4 dependencyr{s rrFCollector.add_dependencys]  *: %++44599    + +  Z)B)B)DErcBURX4RU5 g)zq Schedule a field update. 'objs' must be a homogeneous iterable collection of model instances (e.g. a QuerySet). N)rur|)rr<rLr~s rr9Collector.add_field_updates 5<(//5rctU(a1USRnURUURU5 gg)Nr)rr+r})rr<r~r4s rrE Collector.add_restricted_objectss7 G%%E  # #E *5 1 8 8 > rcXR;aCURUR5VVs0sH up4X4U- _M snnURU'ggs snnfr)r+items)rr4r~r<rs r!clear_restricted_objects_from_set+Collector.clear_restricted_objects_from_sets_ ++ +%)$;$;E$B$H$H$J.$JLEt|#$J.D # #E * ,.sAc XR;al[URURUR5VVs/sHnUHnURPM M snnS95nUR X5 ggs snnf)N)pk__in)r+rrfiltervaluespkr)rr4qsr~rs r&clear_restricted_objects_from_queryset0Collector.clear_restricted_objects_from_querysets ++ + %)$;$;E$B$I$I$K$KD#'C#'$KD  2 25 ? ,s A=c[RRU5=(d [RRU5$r)r pre_delete has_listeners post_delete)rr4s r_has_signal_listenersCollector._has_signal_listenerss7!!//  6  . .u 5 6rcZ^T(aTRR[Lag[US5(aURR nO0[US5(a[US5(a UR nOgUR U5(agURn[U4SjURRRR555=(aC [S[U555=(a! [SUR55(+$)a Determine if the objects in the given queryset-like or single object can be fast-deleted. This can be done if there are no cascades, no parents and no signal listeners for the object class. 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Frr4 _raw_deletec3.># UH nUT:Hv M g7frrQ)relink from_fields rrg,Collector.can_fast_delete..sFD "Fsc3n# UH+nURRR[Lv M- g7fr)r<r3 on_deleter^)rerelateds rrgrs,FG **44 BF35c3:# UHn[US5v M g7f)bulk_related_objectsN)hasattr)rer<s rrgrs"!4E#9::!4s)r3rr?rrr4rallrparentsrrlanyprivate_fields)rr~rr4rks ` rcan_fast_deleteCollector.can_fast_deletes *11;;7J 4 ! !JJ$$E T7 # #m(D(DJJE  % %e , ,{{  //55==DDF   @F   !%!4!4 rc2UVs/sHo3RPM nn[[URRR XA5S5n[ U5U:a+[S[ U5U5Vs/sH nXXe-PM sn$U/$s snfs snf)zD Return the objs in suitably sized batches for the used connection. r)r5maxr r>opsbulk_batch_sizelenrange)rr~fieldsr< field_namesconn_batch_sizeis rget_del_batchesCollector.get_del_batchess066vezzv 6  # ' ' 7 7 JA  t9 &q#d)_==A,-=  6M7 s B9Bc l URU5(aURRU5 gURXX6S9n U (dgU SRn U(dU R R n U R RR5HYn U (dM U V s/sHn [XR5PM nn URUU U RRSSSS9 M[ U(dgU(a#[U R R55n[!["5n[!["5n[%U R 5GHenU(aUR&W;aMUR(nURR*nU[,:XaMKUR.nURUUS9(aUURU5 MUR1U U/5nUHnUR3UU/U5nUR4R6(dgUR9U5(dQ[[:R<"S[%UR 5555nUR>"[AU56n[US S5(d U(dMU"UUUURB5 M GMh U(aY[ES U RF<S SRKU5<S 3[[:R<"UR5555eURM5HOunnUR1U U5nUH1nUR3UUU5nURRU5 M3 MQ U R RNHCn[QUS5(dMURSXRB5nURUU SSS9 ME U(GahURTRM5HunnURWUU5 M URHnURYUR&U5 M! 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If 'fail_on_restricted' is False, error won't be raised even if it's prohibited to delete such objects due to RESTRICT, that defers restricted object checking in recursive calls where the top-level call may need to collect more objects to determine whether restricted ones can be deleted. 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