bhi<.dZddlZddlZddlZddlmZddlmZddlm Z m Z m Z ddl m Z ddlmZej dZed d Zd ZGd d ej(ZGddZGddZGddZddZdZdZGddZy)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#hK||jD]}t|Ed{y7wN)__subclasses__ subclassesclssubclasss R/var/www/alwasay/venv/lib/python3.12/site-packages/django/db/models/query_utils.pyrrs4 I&&((h'''('s &202ceZdZdZdZdZdZeZdZdeeefZ dddfd Z d Z d Z d Z d ZdZ ddZdZefdZdZxZS)Qze Encapsulate filters as objects that can then be combined logically (using `&` and `|`). ANDORXORTNF) _connector_negatedc||jvr4djd|jddD}td|dt|g|t |j ||y)Nz, c3"K|]}| ywr ).0conns r zQ.__init__..3s'T4( 'Ts z_connector must be one of z , or None.)children connectornegated) connectorsjoin ValueErrorsuper__init__sorteditems)selfrrargskwargsconnector_reprs __class__s rr)z Q.__init__1sv T__ ,"ii'TPQPR@S'TTO9/9J*UV V 5t5fV\\^45   ct|dddur t||s|jS|s t|tr|jS|j |}|j |||j |||S)N conditionalF)r#)getattr TypeErrorcopy isinstancercreateadd)r,otherrobjs r_combinez Q._combine;sv 5- /5 8E" "::< E1-99; kkDk) d t r1c:|j||jSr )r<rr,r:s r__or__zQ.__or__Hs}}UDGG,,r1c:|j||jSr )r<rr>s r__and__z Q.__and__K}}UDHH--r1c:|j||jSr )r<rr>s r__xor__z Q.__xor__NrBr1cF|j}|j|Sr )r6negate)r,r;s r __invert__z Q.__invert__Qsiik  r1c\|j|||dd|\}}|j||S)NF) allow_joins split_subqcheck_filterable summarize)_add_q promote_joins)r,queryrIreuserLfor_saveclausejoinss rresolve_expressionzQ.resolve_expressionVsB   #" %  E" r1c#K||jD]@}t|tr|d}t|dr|j Ed{=|By7 w)zg Recursively yield this Q object and all subexpressions, in depth-first order. r!flattenN)r"r7tuplehasattrrV)r,childs rrVz Q.flattenfsV  ]] E%'aui( ==?**   +sAA A Ac Jddlm}m}ddlm}ddlm}ddlm}|d}|jD]-\} } t| ds|| } |j| | d /|j|d d t|jjr)|jt!||d | n|j||j#|} | j%|duS#t&$r!} t(j+d|| Yd} ~ y d} ~ wwxYw)z| Do a database query to check if the expressions of the Q instance matches against the expressions. r) BooleanFieldValue)Coalesce)Query)SINGLENrTF)selectr!_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,againstrcr[r\r]r^r_rOnamevaluecompileres rcheckzQ.checkus 97.9d "==? @RSDT]]# >>T\\ )#'>>F< <8Z%7%78 8r1r )ryrxrrr)rrrr1rrrs  & r1rceZdZdZdZdZy)class_or_instance_methodz Hook used in RegisterLookupMixin to return partial functions depending on the caller type (instance or class of models.Field). c ||_||_yr ) class_methodinstance_method)r,rrs rr)z!class_or_instance_method.__init__s(.r1c| tj|j|Stj|j|Sr ) functoolspartialrr)r,rowners rrz class_or_instance_method.__get__s:  $$T%6%6> >  !5!5x@@r1N)ryrxrrr)rrr1rrrs /Ar1rceZdZdZej ddZdZeeeZ e eZdZ dZ e dZe d Zdd Zdd ZeeeZe eZdd Zdd ZeeeZe eZy)RegisterLookupMixincB|jj|dSr ) get_lookupsget)r, lookup_names r _get_lookupzRegisterLookupMixin._get_lookups!%%k488r1N)maxsizectj|Dcgc]}|jjdi }}|j |Scc}wN class_lookups)inspectgetmrorr merge_dicts)rparentrs rget_class_lookupsz%RegisterLookupMixin.get_class_lookupssQDK>>RUCV 9?FOO   4  }-- s#AcP|j}t|ddx}ri||S|SNinstance_lookups)rr4)r,rrs rget_instance_lookupsz(RegisterLookupMixin.get_instance_lookupss=..0 &t-?F F  F8m8'78 8r1cddlm}|j|}|'t|dr|jj |S| t ||sy|S)Nr)Lookuprb)django.db.models.lookupsrrrXrb get_lookup issubclass)r,rrfounds rrzRegisterLookupMixin.get_lookupsQ3  - =WT>:$$// < <  Zv%> r1cddlm}|j|}|'t|dr|jj |S| t ||sy|S)Nr) Transformrb)rrrrXrb get_transformr)r,rrrs rrz!RegisterLookupMixin.get_transformsQ6  - =WT>:$$22;? ?  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N)rrrs r_unregister_instance_lookupz/RegisterLookupMixin._unregister_instance_lookup0s#   ,,K  ! !+ .r1r )ryrxrrr lru_cacherrrr classmethodrr staticmethodrrrrregister_lookuprr_unregister_lookuprr1rrrs9Y&.'.  ++<>RSK#$5655/7O((=>*/2 "= ++CDr1rc^|jsy|jjr|sy|r&|r|j|vry|s|j|vry|s |jry|rN|rL|j|vr>||vr:t d|j jjd|jdy)af 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). 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