R j;0SrSSKrSSKrSSKrSSKJr SSKJr SSKJ r J r J r SSK J r SSKJr \R "S5r\"S S 5rS r"S S \R(5r"SS5r"SS5r"SS5rSSjrSrSr"SS5rg)z Various data structures used in query construction. Factored out from django.db.models.query to avoid making the main module very large and/or so that they can be used by other modules without getting into circular import difficulties. N) namedtuple) FieldError)DEFAULT_DB_ALIAS DatabaseError connections) LOOKUP_SEP)treedjango.db.modelsPathInfozGfrom_opts to_opts target_fields join_field m2m direct filtered_relationc#l# Uv UR5Hn[U5ShvN M gN 7fN)__subclasses__ subclassesclssubclasss HD:\diplom_project\venv\Lib\site-packages\django/db/models/query_utils.pyrrs. I&&(h''')'s &42 4c^\rSrSrSrSrSrSr\rSr SSS .U4S jjr S r S r S r SrSrSSjrSr\4SjrSrSrU=r$)Q#zY Encapsulate filters as objects that can then be combined logically (using `&` and `|`). ANDORXORTNF) _connector_negatedcZ>[TU]/UQ[UR55QUUS9 g)N)children connectornegated)super__init__sorteditems)selfrrargskwargs __class__s rr! Q.__init__0s3 5t5fV\\^45   c$[USS5SLa [U5eU(dUR5$U(d%[U[5(aUR5$UR US9nUR X5 UR X5 U$)N conditionalF)r)getattr TypeErrorcopy isinstancercreateadd)r$otherconnobjs r_combine Q._combine7su 5- /5 8E" "::< E1--99; kkDk)   r)c8URXR5$r )r5rr$r2s r__or__Q.__or__Ds}}UGG,,r)c8URXR5$r )r5rr8s r__and__ Q.__and__G}}UHH--r)c8URXR5$r )r5rr8s r__xor__ Q.__xor__Jr>r)cFUR5nUR5 U$r )r.negate)r$r4s r __invert__ Q.__invert__Msiik  r)c TURUUUSSUS9upgURU5 U$)NF) allow_joins split_subqcheck_filterable summarize)_add_q promote_joins)r$queryrGreuserJfor_saveclausejoinss rresolve_expressionQ.resolve_expressionRs@   #" %  E" r)c## Uv URHLn[U[5(aUSn[US5(aUR 5ShvN MHUv MN gN7f)zO Recursively yield this Q object and all subexpressions, in depth-first order. flattenN)rr/tuplehasattrrV)r$childs rrV Q.flattenbsV  ]]E%''aui(( ==?** # +sAA&A$A&c LSSKJnJn SSKJn SSKJn SSKJn U"S5nUR5H.up[U S5(dU"U 5n URXSS 9 M0 URU"S 5S 5 [URR(a&UR[!U"US U"5S 955 OURU5 UR#US9n U R%U5SL$![&a n [(R+SX 5 Sn A g Sn A ff=f)zd Do a database query to check if the expressions of the Q instance matches against the expressions. r) BooleanFieldValue)Coalesce)Query)SINGLENrRF)selectrU_checkT) output_field)usingz.Got a database error calling check() on %r: %s)django.db.modelsr\r]django.db.models.functionsr^django.db.models.sqlr_django.db.models.sql.constantsr`r#rXadd_annotationrfeaturessupports_comparing_boolean_expradd_qr get_compiler execute_sqlrloggerwarning) r$againstrdr\r]r^r_r`rMnamevaluecompileres rcheckQ.checkqs 97.9d "==?KD5"677e   U ;+ U1Xx0 u  & & F F KK(4LNKL M KK %%E%2 ''/t; ;  NNKT U s&C99 D#DD#chURR<SURR<3nURS5(aUR SS5n[ UR 5n0nURUR:waURUS'UR(aSUS'XU4$)N.zdjango.db.models.query_utilsr rTr) r' __module____name__ startswithreplacerWrrdefaultr)r$pathr%r&s r deconstruct Q.deconstructs..33T^^5L5LM ??9 : :<< >@RSDT]]# >>T\\ )#'>>F< <8%7%78 8r)rr ) r{rzrrrr!rrrrr)rrrs  & r)rc$\rSrSrSrSrSrSrg)class_or_instance_methodz Hook used in RegisterLookupMixin to return partial functions depending on the caller type (instance or class of models.Field). cXlX lgr  class_methodinstance_method)r$rrs rr!!class_or_instance_method.__init__s(.r)cUc![R"URU5$[R"URU5$r ) functoolspartialrr)r$rowners rr class_or_instance_method.__get__s:  $$T%6%6> >  !5!5x@@r)rN)r{rzrrrr!rrrr)rrrs /Ar)rc\rSrSrSr\R "SS9S5rSr\ "\\5r \ "\5rSr Sr \S 5r\ S 5rSS jrSS jr\ "\\5r\ "\5rSS jrSSjr\ "\\5r\ "\5rSrg)RegisterLookupMixincBUR5RUS5$r ) get_lookupsget)r$ lookup_names r _get_lookupRegisterLookupMixin._get_lookups!%%k488r)N)maxsizec[R"U5Vs/sHoRRS05PM nnUR U5$s snfN class_lookups)inspectgetmrorr merge_dicts)rparentrs rget_class_lookups%RegisterLookupMixin.get_class_lookupssRDK>>RUCV CVOO   4CV  }-- s%AcZUR5n[USS5=n(a0UEUE$U$Ninstance_lookups)rr,)r$rrs rget_instance_lookups(RegisterLookupMixin.get_instance_lookupss=..0 &t-?F F  F8m8'78 8r)cSSKJn URU5nUc,[US5(aURR U5$Ub[ X25(dgU$)Nr)Lookuprc)django.db.models.lookupsrrrXrc get_lookup issubclass)r$rrfounds rrRegisterLookupMixin.get_lookupsU3  - =WT>::$$// < <  Z%>%> r)cSSKJn URU5nUc,[US5(aURR U5$Ub[ X25(dgU$)Nr) Transformrc)rrrrXrc get_transformr)r$rrrs rr!RegisterLookupMixin.get_transformsU6  - =WT>::$$22;? ?  Z%A%A r)cP0n[U5HnURU5 M U$)z Merge dicts in reverse to preference the order of the original list. e.g., merge_dicts([a, b]) will preference the keys in 'a' over those in 'b'. )reversedupdate)dictsmergedds rrRegisterLookupMixin.merge_dictss( %A MM! ! r)c\[U5HnURR5 M gr )rr cache_clearrs r_clear_cached_class_lookups/RegisterLookupMixin._clear_cached_class_lookupss""3H  & & 2 2 4(r)cUc URnSUR;a0UlXRU'UR5 U$r)rrrrrlookuprs rregister_class_lookup)RegisterLookupMixin.register_class_lookup sF   ,,K #,, . "C )/+& '') r)cnUc URnSUR;a0UlXRU'U$r)rrrr$rrs rregister_instance_lookup,RegisterLookupMixin.register_instance_lookups:   ,,K T]] 2$&D !-3k* r)c\Uc URnURU UR5 g)zV Remove given lookup from cls lookups. For use in tests only as it's not thread-safe. N)rrrrs r_unregister_class_lookup,RegisterLookupMixin._unregister_class_lookup"s/   ,,K   k * '')r)c<Uc URnURU g)z[ Remove given lookup from instance lookups. For use in tests only as it's not thread-safe. N)rrrs r_unregister_instance_lookup/RegisterLookupMixin._unregister_instance_lookup,s#   ,,K  ! !+ .r))rr )r{rzrrrr lru_cacherrrr classmethodrr staticmethodrrrrregister_lookuprr_unregister_lookuprrr)rrrs9&.'.  ++<>RSK#$5655/7O((=>*/2 "= ++CDr)rcUR(dgURR(aU(dgU(a4U(aUR5U;agU(dURU;agU(dUR(agU(aVU(aOURU;a?X;a:[ SUR RRSURS35eg)a6 Return True if this field should be used to descend deeper for select_related() purposes. Used by both the query construction code (compiler.get_related_selections()) and the model instance creation code (compiler.klass_info). Arguments: * field - the field to be checked * restricted - a boolean field, indicating if the field list has been manually restricted using a requested clause) * requested - The select_related() dictionary. * select_mask - the dictionary of selected fields. * reverse - boolean, True if we are checking a reverse select related FzField ryzM cannot be both deferred and traversed using select_related at the same time.T) remote_field parent_linkrelated_query_namerrnullrrr object_name)r restricted requested select_maskreverses rselect_related_descendr;s    %%g u//1B5::Y6 %**  JJ) #  $U[[&&2231UZZLAL L   r)c[S[U5S-5H:n[R"USU5nUR U5(dM4X0US4s $ g)z Check if the lookup_parts contains references to the given annotations set. Because the LOOKUP_SEP is contained in the default annotation names, check each prefix of the lookup_parts for a match. rUrN)Nr)rangelenrjoinr) lookup_parts annotationsnlevel_n_lookups rrefs_expressionrbsX 1c,'!+ ,#a):; ??> * *!#33 3- r)c^U4SjnU"U5=(d0 [USS5=(a U"URR5$)z Check that self.model is compatible with target_opts. Compatibility is OK if: 1) model and opts match (where proxy inheritance is removed) 2) model is parent of opts' model or the other way around c>TRRUR:H=(dA URTRR5;=(d TUR5;$r )rconcrete_modelget_parent_list)rrs rrv-check_rel_lookup_compatibility..checkwsV KK & &$*=*= = /""ekk&A&A&CC /,,.. r)rF)r,rr)r target_optsrrvs` rcheck_rel_lookup_compatibilityr os<   }e,Iu{{7H7H1Ir)cH\rSrSrSr\"5S.SjrSrSrSr Sr S r g ) FilteredRelationiz7Specify custom filtering in the ON clause of SQL joins. conditioncU(d [S5eXlSUl[U[5(d [S5eX l/Ulg)Nzrelation_name cannot be empty.z*condition argument must be a Q() instance.) ValueError relation_namealiasr/rrr)r$rrs rr!FilteredRelation.__init__sC=> >* )Q''IJ J" r)c[XR5(d[$URUR:H=(a9 URUR:H=(a UR UR :H$r )r/r'NotImplementedrrrr8s r__eq__FilteredRelation.__eq__sZ%00! !   %"5"5 5 2 ekk) 2%//1 r)c[URURS9nURUlURSSUlU$)Nr)rrrrr)r$clones rrFilteredRelation.clones7 !3!3t~~Njj YYq\  r)c[S5e)zb QuerySet.annotate() only accepts expression-like arguments (with a resolve_expression() method). z0FilteredRelation.resolve_expression() is unused.)NotImplementedError)r$r%r&s rrR#FilteredRelation.resolve_expressions ""TUUr)cURnURUR[UR5S9nUR U5$)N)rN)rMbuild_filtered_relation_qrsetrcompile)r$rt connectionrMwheres ras_sqlFilteredRelation.as_sqls=//c$))n/U&&r))rrrrN) r{rzrrrrr!rrrRr&rrr)rrrs$A343  V'r)r)F)rrrlogging collectionsrdjango.core.exceptionsr django.dbrrrdjango.db.models.constantsr django.utilsr getLoggerror rNoderrrrrrr rrr)rr0s"-BB1   - . M  ( u" u"p&&R A A dEdEN$N :''''r)