Hwg;.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 S/var/www/horilla/myenv/lib/python3.12/site-packages/django/db/models/query_utils.pyrrs4 I&&((h'''('s &202c|eZdZdZdZdZdZeZdZdddfd Z d Z d Z d Z d Z dZ ddZdZefdZdZxZS)Qze Encapsulate filters as objects that can then be combined logically (using `&` and `|`). ANDORXORTNF) _connector_negatedc`t|g|t|j||y)N)children connectornegated)super__init__sorteditems)selfrrargskwargs __class__s rr z Q.__init__0s3 5t5fV\\^45   ct|dddur t||s|jS|s t|tr|jS|j |}|j |||j |||S)N conditionalF)r)getattr TypeErrorcopy isinstancercreateadd)r#otherconnobjs r_combinez Q._combine7sv 5- /5 8E" "::< E1-99; kkDk) d t r'c:|j||jSr )r3rr#r0s r__or__zQ.__or__Ds}}UDGG,,r'c:|j||jSr )r3rr5s r__and__z Q.__and__G}}UDHH--r'c:|j||jSr )r3rr5s r__xor__z Q.__xor__Jr9r'cF|j}|j|Sr )r,negate)r#r2s r __invert__z Q.__invert__Msiik  r'c\|j|||dd|\}}|j||S)NF) allow_joins split_subqcheck_filterable summarize)_add_q promote_joins)r#queryr@reuserCfor_saveclausejoinss rresolve_expressionzQ.resolve_expressionRsB   #" %  E" r'c#K||jD]@}t|tr|d}t|dr|j Ed{=|By7 w)zg Recursively yield this Q object and all subexpressions, in depth-first order. flattenN)rr-tuplehasattrrN)r#childs rrNz Q.flattenbsV  ]] 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)SINGLENrKF)selectrM_checkT) output_field)usingz.Got a database error calling check() on %r: %s)django.db.modelsrSrTdjango.db.models.functionsrUdjango.db.models.sqlrVdjango.db.models.sql.constantsrWr"rPadd_annotationrfeaturessupports_comparing_boolean_expradd_qr get_compiler execute_sqlrloggerwarning) r#againstr[rSrTrUrVrWrFnamevaluecompileres rcheckzQ.checkqs 97.9d "==? @RSDT]]# >>T\\ )#'>>F< <rKrNrrmrv __classcell__)r&s@rrr#sf C B CGK)-  -.. 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N)rrrs r_unregister_instance_lookupz/RegisterLookupMixin._unregister_instance_lookup,s#   ,,K  ! !+ .r'r )rqrprwrr lru_cacherrrr classmethodrr staticmethodrrrrregister_lookuprr_unregister_lookuprr'rrrs9Y&.'.  ++<>RSK#$5655/7O((=>*/2 "= ++CDr'rc^|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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