X"@sddlmZddlmZmZddlmZmZmZddl m Z m Z ddl m Z ddlmZddlmZddlmZdd lmZGd d d eZd S) )settings) BaseCommand CommandError)DEFAULT_DB_ALIAS connections migrations)AmbiguityErrorMigrationLoader)SwappableTuple)MigrationOptimizer)MigrationWriter)six)get_docs_versionc@s:eZdZdZddZddZddZdS) CommandzZSquashes an existing set of migrations (from first until specified) into a single new one.c Cs|jddd|jddddddd|jd dd |jd d d dddddd|jddd ddddddddS)N app_labelhelpz6App label of the application to squash migrations for.start_migration_namedefaultnargs?zGMigrations will be squashed starting from and including this migration.migration_namez?Migrations will be squashed until and including this migration.z --no-optimizeaction store_truedest no_optimizeFz/Do not try to optimize the squashed operations.z --noinputz --no-input store_false interactiveTz:Tells Django to NOT prompt the user for input of any kind.) add_argument)selfparserr ^/home/ubuntu/projects/ifolica/build/django/django/core/management/commands/squashmigrations.py add_argumentsszCommand.add_argumentsc s|d|_|d|_|d}|d}|d}|d}ttt|jkrttd|n|j||fdd jj j j fD}|rD|j||}j |j |j }y#|j |} || d}WqDtk r@td ||fYqDXn|jd ks\|jr|jj|jjd x%|D]|jjd j qW|jrd} xI| s| dkrtjjd} | sd} Pq| d j} qW| dkrdSqng} t} d} x|D]}|jrRtdtn| j|jx{|jD]p}t|trtj |j!kr| j"d+q| j"|ql|d |j ks| rl| j"|qlqlWd} q-W|r'|jd kr|jj|jjdn| }n|jd krU|jj|jjdnt#}|j$| j }|jd krt%|t%| kr|jjdq|jjdt%| t%|fng}xC|D];jr|jjq|j&j j fqWt'dt(j)fi| d6|d6|d6}|rw|d|j j f|}n|d j |}d|_*t+|}t,|j-d!}|j|j.WdQX|jd kr|jj|jjd"|j-|jjd#|jjd$|jjd%|jjd&|j/r|jj|jjd'|jjd(|jjd)|jjd*qndS),N verbosityrrrrrzLApp '%s' does not have migrations (so squashmigrations on it makes no sense)cs7g|]-\}}|jkrj||qSr )r get_migration).0almn)loader migrationr r! :s  z"Command.handle..zThe migration '%s' cannot be found. Maybe it comes after the migration '%s'? Have a look at: python manage.py showmigrations %s to debug this issue.rz%Will squash the following migrations:z - %sZynzDo you wish to proceed? [yN] nyTzYou cannot squash squashed migrations! Please transition it to a normal migration first: https://docs.djangoproject.com/en/%s/topics/migrations/#squashing-migrations __setting__AUTH_USER_MODELFz(Skipping optimization.)z Optimizing...z No optimizations possible.z0 Optimized from %s operations to %s operations. Migration dependencies operationsreplacesz%s_squashed_%sz0001_squashed_%swbz!Created new squashed migration %szC You should commit this migration but leave the old ones in place;zD the new migration will be used for new installs. Once you are surezI all instances of the codebase have applied the migrations you squashed,z you can delete them.zManual porting requiredzH Your migrations contained functions that must be manually copied over,z3 as we could not safely copy their implementation.zC See the comment at the top of the squashed migration for details.)r-zAUTH_USER_MODEL)0r#rr rrZ migrated_appsrfind_migrationgraphZ forwards_planrnamer$index ValueErrorstdoutwritestyleZMIGRATE_HEADINGr movesinputlowersetr2rextendr1r0 isinstancer rr.Zsettingaddr optimizelenappendtyperr/initialr openpath as_stringZneeds_manual_porting)roptionsrrrrZmigrations_to_squashZstart_migrationstartZ start_indexZanswerr1r0Zfirst_migrationZ smigration dependencyZnew_operationsZ optimizerr2subclassZ new_migrationwriterfhr )r(r)r!handle%s       "               "  # zCommand.handlec Csjy|j||SWnOtk r>td||fYn(tk retd||fYnXdS)NzJMore than one migration matches '%s' in app '%s'. Please be more specific.z4Cannot find a migration matching '%s' from app '%s'.)Zget_migration_by_prefixrrKeyError)rr(rr6r r r!r4s  zCommand.find_migrationN)__name__ __module__ __qualname__rr"rQr4r r r r!r s   rN)Z django.confrZdjango.core.management.baserrZ django.dbrrrZdjango.db.migrations.loaderrr Zdjango.db.migrations.migrationr Zdjango.db.migrations.optimizerr Zdjango.db.migrations.writerr Z django.utilsr Zdjango.utils.versionrrr r r r!s