Evg'&nddlZddlmZddlmZddlmZGddZGdd eZ d Z dS) N)get_migration_name_timestamp)atomic)IrreversibleErrorcfeZdZdZgZgZgZgZdZdZ dZ dZ dZ dZ dZdd Zdd Zdd Zd ZdS) Migrationa The base class for all migrations. Migration files will import this from django.db.migrations.Migration and subclass it as a class called Migration. It will have one or more of the following attributes: - operations: A list of Operation instances, probably from django.db.migrations.operations - dependencies: A list of tuples of (app_path, migration_name) - run_before: A list of tuples of (app_path, migration_name) - replaces: A list of migration_names Note that all migrations come out of migrations and into the Loader or Graph as instances, having been initialized with their app label and name. NTc||_||_t|jj|_t|jj|_t|jj|_t|jj|_dSN)name app_labellist __class__ operations dependencies run_beforereplaces)selfr r s [/var/www/pixelcanvas.ch/venv/lib/python3.11/site-packages/django/db/migrations/migration.py__init__zMigration.__init__7se "t~899 !<==t~899T^455 clt|to|j|jko|j|jkSr ) isinstancerr r )rothers r__eq__zMigration.__eq__@s6 ui ( ( 2 UZ' 2%/1 rc(d|jd|jdS)Nz r r rs r__repr__zMigration.__repr__Gs&*nnndiii@@rc$|jd|jSNrrrs r__str__zMigration.__str__Js...$))44rc>t|jd|jSr")hashr r rs r__hash__zMigration.__hash__Mst~~~tyy9:::rc|}|r|}|jD]}||j||S)z Take a ProjectState and return a new one with the migration's operations applied to it. Preserve the original object state by default and return a mutated state from a copy. )clonerstate_forwardsr )r project_statepreserve new_state operations r mutate_statezMigration.mutate_statePsV "  .%++--I @ @I  $ $T^Y ? ? ? ?rFc2|jD]}|r|jd|jd|z|jd|js|jdt |j}|}||j||j p|j o|j du}|j sQ|rOt|j j 5| |j|||dddn #1swxYwYn| |j||||r2|t |jkr|jd|S)a Take a project_state representing all migrations prior to this one and a schema_editor for a live database and apply the migration in a forwards order. Return the resulting project state for efficient reuse by following Migrations. ---- %s*-- THIS OPERATION CANNOT BE WRITTEN AS SQLFN -- (no-op))r collected_sqlappenddescribereduces_to_sqllenr(r)r ratomic_migration connectionaliasdatabase_forwards)rr* schema_editor collect_sqlr-collected_sql_before old_stateatomic_operations rapplyzMigration.apply^s ! A! AI H+224888+227Y=O=O=Q=Q3QRRR+224888 /!/66D'*=+F'G'G$%++--I  $ $T^] C C C(/  = 0 = !1 6F M4:;;// y- ++NM9m A3s=;V7W7WWW+22<@@@sD88D< ?D< cg}|}|jD]{}|jstd|d|d|}|}||j||d|||f||D]b\}}} |r|jd|jd| z|jd|j s|jdt|j} |j p|j o|j du} |j sQ| rOt|jj5||j|| |d d d n #1swxYwYn||j|| ||r2| t|jkr|jd d|S) a Take a project_state representing all migrations prior to this one and a schema_editor for a live database and apply the migration in a reverse order. The backwards migration process consists of two phases: 1. The intermediate states from right before the first until right after the last operation inside this migration are preserved. 2. The operations are applied in reverse order using the states recorded in step 1. z Operation z in z is not reversiblerr0r1r2FNr3)r reversiblerr(r)r insertr4r5r6r7r8rr9r:r;database_backwards) rr*r=r>to_runr,r-r@to_state from_stater?rAs runapplyzMigration.unapplys!  @ @I' ''>GiiN "))I!))I  $ $T^Y ? ? ? MM!iI> ? ? ? ?06 A A +Ix H+224888+227Y=O=O=Q=Q3QRRR+224888 /!/66D'*=+F'G'G$(/  = 0 = !1 6F M4:;;00 z8 ,,NM:x A3s=;V7W7WWW+22<@@@s%FF F c2|jrdSd|jD}d|D}|r%t|t|jkrdtzS|d}|ddD]%}|d|}t|d kr|d }n|}&|S) z Suggest a name for the operations this migration might represent. Names are not guaranteed to be unique, but put some effort into the fallback name to avoid VCS conflicts if possible. initialcg|] }|j S)migration_name_fragment).0ops r z*Migration.suggest_name..sNNN3NNNrc>g|]}|tjdd|S)z\W+_)resub)rPr s rrRz*Migration.suggest_name..s+QQQ4DQRVFC..QQQrzauto_%srrNrT4 _and_more)rLrr8r)r raw_fragments fragmentsr fragmentnew_names r suggest_namezMigration.suggest_names < 9NNdoNNN QQ=QQQ  >C NNc$/.B.BBB;=== =|!!""   H++++H8}}r!!)))DD r)T)F)__name__ __module__ __qualname____doc__rrrrrLrrrr r#r&r.rBrJr]rNrrrr s$JL J HGF666   AAA555;;;    ++++Z;;;;zrrceZdZdZdZdS)SwappableTuplez Subclass of tuple so Django can tell this was originally a swappable dependency when it reads the migration file. cJt||}||_|Sr )tuple__new__setting)clsvaluergrs rrfzSwappableTuple.__new__s!}}S%((  rN)r^r_r`rarfrNrrrcrcs- rrccZt|ddddf|S)z'Turn a setting value into a dependency.rrr __first__)rcsplit)ris rswappable_dependencyrms* 5;;sA..q1;? G GGr) rUdjango.db.migrations.utilsrdjango.db.transactionr exceptionsrrrercrmrNrrrqs CCCCCC(((((())))))UUUUUUUUp     U   HHHHHr