EvgPHddlZddlZddlmZmZddlmZddlmZddl m Z ddl m Z ddl mZddlmZdd lmZdd lmZdd lmZdd lmZdd lmZmZmZddlmZGddeddZGddZ dS)N) defaultdict namedtuple)Enum)TopologicalSorter)chain)settings)models) operations) Migration)AlterModelOptions)MigrationOptimizer)MigrationQuestioner)COMPILED_REGEX_TYPE RegexObjectresolve_relation)cached_propertycVeZdZGddeZedZedZdS)OperationDependencyc"eZdZdZdZdZdZdZdS)OperationDependency.TyperN)__name__ __module__ __qualname__CREATEREMOVEALTERREMOVE_ORDER_WRTALTER_FOO_TOGETHER^/var/www/pixelcanvas.ch/venv/lib/python3.11/site-packages/django/db/migrations/autodetector.pyTypers+r$r&c4|jSN) model_namelowerselfs r%model_name_lowerz$OperationDependency.model_name_lower!$$&&&r$c4|jSr() field_namer*r+s r%field_name_lowerz$OperationDependency.field_name_lower%r.r$N)rrrrr&rr-r1r#r$r%rrstt''_'''_'''r$rz$app_label model_name field_name typecteZdZdZd5dZd6dZdZdZd7dZdZ d Z e d Z d5d Z d Zd ZdZd8dZdZdZdZdZdZdZdZdZdZdZdZdZdZdZdZ d Z!d!Z"d"Z#d#Z$d$Z%e d%Z&d&Z'd'Z(d(Z)d)Z*d*Z+d+Z,d,Z-d-Z.d.Z/d/Z0d0Z1d1Z2d5d2Z3d3Z4e5d4Z6dS)9MigrationAutodetectora  Take a pair of ProjectStates and compare them to see what the first would need doing to make it match the second (the second usually being the project's current state). Note that this naturally operates on entire projects at a time, as it's likely that changes interact (for example, you can't add a ForeignKey without having a migration to add the table it depends on first). A user interface may offer single-app usage if it wishes, with the caveat that it may not always be possible. Ncx||_||_|p t|_d|jD|_dS)Nch|]\}}|Sr#r#).0appmodels r% z1MigrationAutodetector.__init__..;sFFFjc5cFFFr$) from_stateto_stater questionerr existing_apps)r,r:r;r<s r%__init__zMigrationAutodetector.__init__7sB$  $=(;(=(=FFJ4EFFFr$c|||}||||}|r|||}|S)z Main entry point to produce a list of applicable changes. Take a graph to base names on and an optional set of apps to try and restrict to (restriction is not guaranteed) )_detect_changesarrange_for_graph _trim_to_apps)r,graph trim_to_apps convert_appsmigration_namechangess r%rGzMigrationAutodetector.changes=sS &&|U;;((%HH  @((,??Gr$c0t|trfd|DSt|trtfd|DSt|tr fd|DSt|t jr:|j|j |j fSt|trt|St|tr|St|drm|}t|t jr |dd}|\}}}|fd|Dfd|DfS|S) z Recursive deconstruction for a field and its arguments. Used for full comparison for rename/alter; sometimes a single-level deconstruction will not compare correctly. c:g|]}|Sr#deep_deconstructr6valuer,s r% z:MigrationAutodetector.deep_deconstruct..Ps'BBBUD))%00BBBr$c3BK|]}|VdSr(rJrLs r% z9MigrationAutodetector.deep_deconstruct..Rs1GG%..u55GGGGGGr$cBi|]\}}||Sr#rJr6keyrMr,s r% z:MigrationAutodetector.deep_deconstruct..Ts-TTT*#uC..u55TTTr$ deconstructrNc:g|]}|Sr#rJrLs r%rNz:MigrationAutodetector.deep_deconstruct..is'@@@%&&u--@@@r$cBi|]\}}||Sr#rJrRs r%rTz:MigrationAutodetector.deep_deconstruct..js-TTTzsEd++E22TTTr$) isinstancelisttupledictitems functoolspartialfuncrKargskeywordsrrtypehasattrrUr Field)r,obj deconstructedpathr`kwargss` r%rKz&MigrationAutodetector.deep_deconstructIs c4  BBBBcBBB B U # # GGGG3GGGGG G T " " TTTT TTT T Y. / / %%ch//%%cl33  0 1 1 s## # T " " J S- ( ( OO--M#v|,, 2 -abb 1 !. D$@@@@4@@@TTTTV\\^^TTT  Jr$c g}t|D]^\}}||}|jr(|jjr|ddd||_|S)z Return a definition of the fields that ignores field names and what related fields actually relate to. Used for detecting renames (as the related fields change during renames). rtoN)sortedr\rK remote_fieldr8popappend)r,fields fields_defnamefielddeconstructions r%only_relation_agnostic_fieldsz3MigrationAutodetector.only_relation_agnostic_fieldsos  !&,,..11 . .KD%!22599N! 2e&8&> 2q!%%dD111   n - - - -r$c& i|_i|_i|_i|_t |_t |_t |_t |_t |_ t |_ |j j D]\\}}}|jdds|j||f@||j jvrS|jdr|j||f|j||f|jj D]\\}}}|jdds|j ||f@||j jvs|rW||vrS|jdr|j ||f|j||f|j |j||||||||||||| |!|"|#|$|%|&|'|(|)|*|+|,|-|.|/||0|j1S)aX Return a dict of migration plans which will achieve the change from from_state to to_state. The dict has app labels as keys and a list of migrations as values. The resulting migrations aren't specially named, but the names do matter for dependencies inside the set. convert_apps is the list of apps to convert to use migrations (i.e. to make initial migrations for, in the usual case) graph is an optional argument that, if provided, can help improve dependency generation and avoid potential circular dependencies. managedTproxy)2generated_operationsaltered_indexesaltered_constraintsrenamed_fieldssetold_model_keysold_proxy_keysold_unmanaged_keysnew_model_keysnew_proxy_keysnew_unmanaged_keysr:r r\optionsgetadd real_appsr;resolve_fields_and_relationsgenerate_renamed_models_prepare_field_lists_generate_through_model_mapgenerate_deleted_modelsgenerate_created_modelsgenerate_deleted_proxiesgenerate_created_proxiesgenerate_altered_optionsgenerate_altered_managers!generate_altered_db_table_commentcreate_renamed_fieldscreate_altered_indexescreate_altered_constraintsgenerate_removed_constraintsgenerate_removed_indexesgenerate_renamed_fieldsgenerate_renamed_indexes(generate_removed_altered_unique_togethergenerate_removed_fieldsgenerate_added_fieldsgenerate_altered_fields&generate_altered_order_with_respect_to generate_altered_unique_togethergenerate_added_indexesgenerate_added_constraintsgenerate_altered_db_table_sort_migrations_build_migration_list_optimize_migrations migrations)r,rErC app_labelr) model_states r%r@z%MigrationAutodetector._detect_changes}sa&%'!!#%  "ee!ee"%%%!ee!ee"%%%48O4J4P4P4R4R E E 0 #Y [&**9d;; E'++Y ,CDDDD$/";;;&**733E'++Y ,CDDDD'++Y ,CDDD48M4H4N4N4P4P E E 0 #Y [&**9d;; E'++Y ,CDDDD$/";;;.sx   % :"o44.22Iz3JJWWW    J /    r$cXh|]&\}}jj||fjD]}|||f'Sr#)r;r rors r%r9z=MigrationAutodetector._prepare_field_lists..s]   % :"m29j3HIP   J /    r$N) r}rkept_model_keysr~rkept_proxy_keysrrkept_unmanaged_keys through_usersold_field_keysnew_field_keysr+s`r%rz*MigrationAutodetector._prepare_field_listss $2T5HH#2T5HH#'#:T=T#T     )-)=       )-)=   r$cvt|jD]\}}|j||f|}|jj||f}|jD]S\}}t|dr>t|j ddr(t|j j ||}|||f|j |<TdS)zThrough model map generation.rlthroughN)rkr}rrr:r ror\rcgetattrrlrrr)r,rr)old_model_nameold_model_stater0rr through_keys r%rz1MigrationAutodetector._generate_through_model_maps%+D,?%@%@   !Iz!044J'N#o4Y5NOO%4%;%A%A%C%C  ! E5.11 g& 477 #3*2Iz##K"&"7D&{3    r$c|jdkr|dfStt|jd\}}t |||j|jdfS)zp Return the resolved dependency and a boolean denoting whether or not it was swappable. __setting__F.T) rrrr)splitrr*r0rb) dependencyresolved_app_labelresolved_object_names r%_resolve_dependencyz)MigrationAutodetector._resolve_dependencys  = 0 0u$ $3: j+4 4 %** 10 "$**,,%      r$c i|_td|jD}d}|rt |jD]}g}t }t |j|D]}d}t } |jD]G} | } || \} } | j |kr|j | j gD]} | | | rd}n|sn| r"| | j | j f| j |jvr8| | j |j| j djf|ro|rO|| j r5| || j d'| | j dfEd}I|r:|||| |j|d=|s|r|j|r|rt%dt&fggd}|d t)|j |gd zz|}t ||_||_||jv|_|j|g|d}||j|z|j|<td |jD}||kr|sd}nt5d |jz|}|d Sd S)ag Chop the lists of operations up into migrations with dependencies on each other. Do this by going through an app's list of operations until one is found that has an outgoing dependency that isn't in another app's migration yet (hasn't been chopped off its list). Then chop off the operations before it into a migration and move onto the next app. If the loops completes without doing anything, there's a circular dependency (which _should_ be impossible as the operations are all split at this point so they can't depend and be depended on). c34K|]}t|VdSr(lenr6xs r%rPz>MigrationAutodetector._build_migration_list..2s(IIc!ffIIIIIIr$FTr __first__r )r dependencieszauto_%irc34K|]}t|VdSr(rrs r%rPz>MigrationAutodetector._build_migration_list..s(QQc!ffQQQQQQr$z)Cannot resolve operation dependencies: %rN)rsumrxvaluesrkr|rY _auto_depsrrrcheck_dependencyrr)rq leaf_nodesrnupdaterbr rrr r=initial setdefault ValueError)r,rCnum_ops chop_moderchoppedr operationdeps_satisfiedoperation_dependenciesdep original_depis_swappable_depother_operationsubclassinstance new_num_opss r%rz+MigrationAutodetector._build_migration_list&s)IId&?&F&F&H&HIIIII h "$D$=>>W W  "uu !%d&? &J!K!K??I%)N-0UU*(36?6? (+ 040H0H0M0M--=I55483L3P3P # r44**$(#8#8##N#N!*5:N$)E!*$2&? %#3#!?$:$>$>,8,B,8,C)*%&%&%&%& &)]do%E%E$:$>$>,/M,0OCM,J2,N,S)*%&%&%&%&(1%?,1).U5E5Ecm5T5T).,B,F,F050@0@0O0OPQ0R-.-.-.-.-C,F,F14 0L-.-.-.-.:?%y111$++,BCCC 5i@CC74Y?9#''&L+-rBB$$ $,8%T_-@-@B-O-O)P)PST)TU%$$15\0B0B-.5++4D.s8 Q Qq43H3HC3P3P Q Q Q Q Q Q Qr$N) rkrxr\rrrrrrY static_order)r,ropstsoprs` @r%rz&MigrationAutodetector._sort_migrationss %T%>%D%D%F%FGG K KNIs"$$B S Sr =SSC22377:C} 11 BF2R Q Q Q Q QC Q Q QRRRRR S488I8I3J3JD %i 0 0 K Kr$c|jD]D\}}t||ddD]&\}}|j||jf'E|jD]-}|D](}tt|j|_).|jD]6\}}|D].}t |j ||_ /7dS)Nr) rr\ziprrnrqrrYr|r optimizer )r,rrm1m2 migrations r%rz*MigrationAutodetector._optimize_migrationss/%)_%:%:%<%< = = !Izj*QRR.99 = =B&& 27';<<<< =/0022 K KJ' K K )-c)2H.I.I)J)J && K&*_%:%:%<%<   !Iz'   '9';';'D'D()(( $$   r$cjDjtjjkr*t |t jo|jj kSjjtjjkrt |t jo/|jj kotfd|j Dp9t |t j o|j j ko|jj kSjTjtjjkr:t |t jo|j j ko|jj kSjDjtjjkr*t |t jo|jj kSjTjtjjkr:t |t jo|j j ko|jj kSjhjtjjkrNt |t jo3|jj ko#|jpdj kSjPjtjjkr6t |t jt jfo|jj kSt5d)zn Return True if the given operation depends on the given dependency, False otherwise. Nc34K|]\}}j|kVdSr()r0)r6ryrs r%rPz9MigrationAutodetector.check_dependency..s/PPtq! -2PPPPPPr$zCan't handle dependency )r0rbrr&rrXr CreateModel name_lowerr-anyroAddFieldr1r RemoveField DeleteModelr AlterFieldr!AlterOrderWithRespectToorder_with_respect_tor*r"AlterUniqueTogetherAlterIndexTogetherr)r,rrs `r%rz&MigrationAutodetector.check_dependencys  ! )#6#;#BBB9j&<==H(J,GG   ! -#6#;#BBB9j&<==Q(J,GGQPPPPy?OPPPPP 9j&9::H.*2MMH(J,GG   ! -#6#;#BBB9j&<==H.*2MMH(J,GG   ! )#6#;#BBB9j&<==H(J,GG   ! -#6#;#AAA9j&;<<H.*2MMH(J,GG   ! -#6#;#LLL9j&HII/(J,GG/4:AACC./   ! -#6#;#NNN3Z5RSH(J,GG  *ZZIJJ Jr$Fc|pg|_|r1|j|gd|dS|j|g|dS)Nr)rrxrinsertrn)r,rrr beginnings r% add_operationz#MigrationAutodetector.add_operationsv ,1r   R  % 0 0B ? ? F Fq) T T T T T  % 0 0B ? ? F Fy Q Q Q Q Qr$cn |jj|}d|jD}|dd|d}|jds.&s=#4--@4=r$rrr swappable AbstractUserAbstractBaseUser___) r;r basesrrrAUTH_USER_MODELr* LookupError)r,itemr base_namesstring_versions r%swappable_first_keyz)MigrationAutodetector.swappable_first_keys  -.t4K'-J)-Qa9N#'' 44 :!Z//%33+1133~7K7K7M7MMMQa99N    D  sB!B%% B21B2c "i|_i|_|j|jz }t |D]\}}|jj||f}||j}|j|jz }|D]\}}||kr|j j||f} || j} || krW|j | |r;g} t|j d|jj||f Dz} | D]9} | jr0| |||| |j:||t'j| j|j| ||j||f<| jd| j}|jd|j|j|<|j||f|j||fndS)z Find any renamed models, generate the operations for them, and remove the old entry from the model lists. Must be run before other model-level generation. cJg|] }|D] }|j !Sr#)rrl)r6 relationsrrs r%rNzAMigrationAutodetector.generate_renamed_models..QsYJJJ$-.7-=-=-?-? JJ %* !& 2JJJJr$)old_namenew_namerrN)rrenamed_models_relrr}rkr;r rtror:r<ask_rename_modelrYrr is_relationextend!_get_dependencies_for_foreign_keyrr RenameModelrqrrremover)r, added_modelsrr)rmodel_fields_defremoved_models rem_app_labelrem_model_namerem_model_staterem_model_fields_defrrorrrenamed_models_rel_keys r%rz-MigrationAutodetector.generate_renamed_models6s !"$*T-@@ %+L%9%99 "9 " !Iz-.y*/DEK#AA+BTUU !043FFN1?4 "4 "- ~ I--&*o&<%~5'O,0+M+M'.,,((+????;;+[+",.L%)+*<*C*C*E*E%F%FJJ151H$-z$92""(&(( JJJ&F*0 & &#(#4!&$0$7$7(,(N(N,5,6,1,0M )*)*%&%&%&!.. ) * 6-<-A-8-=!"!"!".: /JXD/ :0EF / 9 9 9 / : :62%0$9$9$9$/$:$:!"!34JK!/66 ~7VWWW /33Y 4KLLL!Es9 "9 "r$c   |j|jz}|j|z }|j|z }t t ||jdt ||jd}|D]\|jjf}i d}|j D]X\}}|j rL|j j r%|j r |j j }n|j js| |<t|j ddr| |<Y|jd} |jd} |jdd} |jdd} t%dt$jjg} |jD].}t-|t.rd |vr|d d \}}| t%||dt$jj|jj||f}|jj||f}|r|r}t;|j |j |j }|D]6}| t%|||t$jj70|rA| t%gtA|dt$jjR|!tEj#|j$ fd |j D|j|j|j% | d |jddst D]\}}|&||j} | t%dt$jj|!tEj'||tQt;| | rl|!tEj)| t%| t$jjt%dt$jjgfdt D}|t%dt$jj| D].}|!tEj*||/| D].}|!tEj+||/| r,|!tEj,| ||jj-}f|j.vr|f D]\} |jj|} D]\\}}|!|j/tEj0|j$||t%dt$jjg]dS)ar Find all new models (both managed and unmanaged) and make create operations for them as well as separate operations to create any foreign key or M2M relationships (these are optimized later, if possible). Defer any model options that refer to collections of fields that might be deferred (e.g. unique_together). T)rSreverseNrindexes constraintsunique_togetherrrrc(g|]}|dv |S)rr#)r6drelated_fieldss r%rNzAMigrationAutodetector.generate_created_models..s2Q4~55555r$rqrorrmanagers)rrrvr)rqrrrrqrcRg|]#}t|tjj$Sr#)rr&r)r6rqrr)s r%rNzAMigrationAutodetector.generate_created_models..sE$$$$z41D1I1P$$$r$r)indexr) constraintrqr()1r}rrrrrkrr;r ror\rlr8 primary_key parent_linkrrrmrr&rrrXrrrnrr:rr| difference intersectionrrr rrqr-rrrYrAddIndex AddConstraintrrr~rr)!r,old_keysradded_unmanaged_modelsall_added_modelsrprimary_key_relr0rrr&r'r(rrrbase_app_label base_nameold_base_model_statenew_base_model_stateremoved_base_fieldsremoved_base_fieldrqrelated_dependenciesr2r4rrelated_model_keyrelated_model_staterelated_field_name related_fieldrr)r+s! @@@r%rz-MigrationAutodetector.generate_created_modelszs&)@@*X5 !%!88!C N:6u19dCC;5:z2")--i88G%-11-@@K)1556GNNO$/$7$;$;'%% ! $z41D1I1PL $)# # dC(("SD[[04 30B0B-NI ''+*% /4; ,0?+A+E+E'3,,(,0=+?+C+C'3,,(,0D 4 ;<<'Z 4 ;*\+*<== ,3F.(// 3$2$-$6$7$<$C !"!" ##')/9jQQ,07   &$)!,!3!9!9!;!; (/%+(1   *    $&**9d;;  &n&:&:&<&<==   e#EEM    ##'!:t5H5M5T ""'#-!# "&c,&7&7!8!8#% ""6'.C ,%&1/4;  ,%z49L9Q9X " #$$$$$$#>22 $$$ ! ' '#z41D1I1P    !  ""'#-#"6 #*   "",#-#-"6 # ""2'(7"6 # /I:&$*===9Bz):%''5%~+/-*>?P*Q'=K=Q=Q=S=S9*M**/9&1+>+C%7&3 !4$-$.$($7$<$C !"!"*+uJ J r$c \|j|jz }t|D] \}}|jj||f}|jdsJt||dtjj g}|j D]h}t|trQd|vrM| dd\}}|t||dtjji||t#j|jg|j|j |j| dS)z Make CreateModel statements for proxy models. Use the same statements as that way there's less code duplication, but for proxy models it's safe to skip all the pointless field stuff and chuck out an operation. rwNrrr,r)rr~rkr;r rrrr&rrrXrrrnrrr rrqr-) r,addedrr)rrrr@rAs r%rz.MigrationAutodetector.generate_created_proxiesWsi #d&99%+E]]! !  !Iz-.y*/DEK&**733 3 3 3$z41D1I1PL $)  dC(( SD[[04 30B0B-NI ''+*% /4;    &$)'/%+(1 *     -! ! r$c |j|jz}|j|z }|j|z }t t |t |}|D]\}}|jj||f}i}|j D]8\} } | j r,| j j r| || <t| j ddr| || <9|j dd} | r*||t!j|dt |D],} ||t!j|| -g} |jj}|||f D]\\}}}| D]t\} } | t+||| t*jj| js4| t+||| t*jjut |D]6} | t+||| t*jj7|j||jf}|r0| t+g|t*jjR||t!j|jt?tA| dS)a Find all deleted models (managed and unmanaged) and make delete operations for them as well as separate operations to delete any foreign key or M2M relationships (these are optimized later, if possible). Also bring forward removal of any model options that refer to collections of fields - the inverse of generate_created_models(). rNr(r5r)rqrqr)!rrr}rrrkr:r ror\rlr8rrrmrr rrrrnrr&r many_to_manyr rrrrrqrYr|)r,new_keysdeleted_modelsdeleted_unmanaged_modelsall_deleted_modelsrr)rr+r0rrr(rqrrrelated_object_app_label object_namerelation_related_fields through_users r%rz-MigrationAutodetector.generate_deleted_modelss&)@@,x7#'#:X#E " > " "F+C$D$D  &8M M  !Iz/0J1FGKN%0%7%=%=%?%? ; ;! E%;)/;5:z2u19dCC;5:z2)1556GNNO ""2'(,~..  ""*#-!L1I+4Iz4I*J*P*P*R*R  '(&)@)F)F)H)H%J ''+4'&/4; !-$++/ 8 + * 3 8 > &~..  ##'!:t5H5M5T  -119k>T2UVVL ##'WW7J7O7VWWW   &$)"#l"3"344     OM M r$c |j|jz }t|D]c\}}|jj||f}|jdsJ||tj |j ddS)z*Make DeleteModel options for proxy models.rwrON) r~rrkr:r rrrr rrq)r,deletedrr)rs r%rz.MigrationAutodetector.generate_deleted_proxiess%(;;%+G__   !Iz/0J1FGK&**733 3 3 3   &$)      r$c g|_|j}t|j|z D]\}}}|j||f|}|jj||f}|j j||f}| |}| |} t||jz D]x\} } } | |krj| |krc| | } | | }|j rC|j j r7d|dvr-|dd}||jvr|j||dd<| | | d}|| ks7|dd| ddkrt#|d|| dkr|j|| ||rf|j| | | j| ||||f|| | | f||||f| |j|||f<nz dS)zWork out renamed fields.rjrrr) db_columnN)renamed_operationsrcopyrkrrrr:r r; get_fieldrKrlr8rset_attributes_from_nameget_attname_columnr[r< ask_renamernr\rrr{)r,rrr)r0rrnew_model_staterr field_decrr rem_field_name old_field old_field_dec old_rel_to old_db_columns r%rz+MigrationAutodetector.create_renamed_fieldss"$,113317  . 02 2 8 "8 " -Iz:"044J'N#o4Y5NOO"m29j3HIO#--j99E--e44IAG!44BB- "- "= ~~!I--.J2N2N / 9 9. I II$($9$9)$D$DM*Y!.4Y!M!$444%21%5d%; %)@@@595LZ5XM!,T266~FFF$-$@$@$B$B1$EM$ 11&ac*i!n<< q!1]KKK$Q<(( ?55& E"!3::$1$2$-$7$2$-$.$)$. !"   +11!. O+.. :z/RSSS .!/ :z0QR"Eq8 "8 "r$c |jD]\}}}}}}}}||jkrF|} || _||t j||| ||t j||||j |||f|j |||fdS)z Generate RenameField operations.r.)r)rrN) r]r\clonerqrr r RenameFieldrrr) r,rr  rem_db_columnrerr)rrr0 altered_fields r%rz-MigrationAutodetector.generate_renamed_fields+s $! I! I         // % %3 """)#-++   &)+'      & & ~~'V W W W   # #Y J$G H H H HC! I! Ir$czt|j|jz D]\}}}||||dS)zMake AddField operations.N)rkrr_generate_added_fieldr,rr)r0s r%rz+MigrationAutodetector.generate_added_fieldsPs[17  $"5 52 2  J J -Iz:  & &y*j I I I I J Jr$c @|jj||f|}t|||tjjg}|jr<|jjr0|| ||||j|j r(|| |tj tj tjf}|jpR|p>|jtjup+|jp$|jo|jpt-||o|j}|sl|}t-||r(|jr!|j|||_n |j|||_|jrB|jtjur/t?|jr|j |||!|tEj#|||||dS)Nr)rqrrpreserve_defaultr)$r;r r_rr&rrlr8rr generated%_get_dependencies_for_generated_field DateField DateTimeField TimeFieldnull has_default db_default NOT_PROVIDEDrPblankempty_strings_allowedrXauto_nowrk auto_now_addr<ask_auto_now_add_additiondefaultask_not_null_additionuniquecallable$ask_unique_callable_default_additionrr r)r,rr)r0rrr time_fieldsrts r%rpz+MigrationAutodetector._generate_added_fieldWsa $Y %:;EEjQQ :z3F3K3R     %"4":    66M     ? S    J J5 Q Q R R R')=v?OP J C  "" Cv':: C! C ; ;  C 5+..A5>  KKMME%-- %2D  $ I I !! !% E E !!  L Y V%888''9 O @ @Z X X X    %!1     &  r$czt|j|jz D]\}}}||||dS)zMake RemoveField operations.N)rkrr_generate_removed_fieldrqs r%rz-MigrationAutodetector.generate_removed_fieldss[17  $"5 52 2  L L -Iz:  ( (J K K K K L Lr$c ||tj||t|||tjjt|||tjjgdS)NrNr)rr rrr&r!r"rqs r%rz-MigrationAutodetector._generate_removed_fields    "%   $',=  $',?        r$c tjjzD]\}}}j||f|}j|||f|}jj||f|}j j||f|}g}t|drrt|j ddr[t|j j||jvr|j j|j _t|j dd} | r;| fz} | jvr,|j j|j _|j j|j _t|dd} | r||ft!fd| D|_t!fd|jD|_t|ddx} r-t!| |_t!|j|_||||j t|drPt|j ddr:t|j j||jvr|j j|j _|} |}| |kr||kr|jo|j}|j o|j }|s|rd }|jr||jsu|sa|jtjurN|jsG|}j||}|tjur ||_d }n|} |tCj"|||| | #|||$|||dS) zp Make AlterField operations, or possibly RemovedField/AddField if alter isn't possible. rlr8Nr0 from_fieldscNg|]!}j|fz|"Sr#r{r)r6 from_fieldfrom_rename_keyr,s r%rNzAMigrationAutodetector.generate_altered_fields..sJ!+!/33 /:- ?r$cNg|]!}j|fz|"Sr#r)r6to_field rename_keyr,s r%rNzAMigrationAutodetector.generate_altered_fields..sC (!/33J(4LhWWr$rTFrsr)%rkrrrrr{r:r r_r;rcrrlrr8r0rZr to_fieldsrrrrKrPrzr{r|r}rkr<ask_not_null_alterationrrr rrrp)r,rr)r0rold_field_namerf new_fieldrremote_field_nameto_field_rename_keyrold_from_fieldsrg new_field_decboth_m2m neither_m2mrtrr new_defaultrrs` @@r%rz-MigrationAutodetector.generate_altered_fieldss 28  $"5 52 2 t Rt R -Iz:"044J'N"044J 3ZN.y./HISSI ,Y -BCMMILy.110 g&770 .*0)Z !4443<3I3OI*0$+I,BLRV$W$W!$ *48I7K*K'*d.AAA8A7M7S .4%2=".9&iEE I'0*&=O,1/: --I)+0,5,?++I' +2)]D*Q*QQI05o0F0F -.3I4G.H.H +##::!"! y.11 Tg& 477 T.*2Iz !4445>5K5SI*2 11)<.:s#RRRS3k;Q;QS;Q;Q;Qr$cg|]}|v| Sr#r#)r6r new_indexess r%rNz@MigrationAutodetector.create_altered_indexes..;s#TTTsS =S=Ss=S=S=Sr$rrqrorrcg|]}|v| Sr#r#)r6rremove_from_addeds r%rNz@MigrationAutodetector.create_altered_indexes..us+;L0L0L0L0L0Lr$cg|]}|v| Sr#r#)r6rremove_from_removeds r%rNz@MigrationAutodetector.create_altered_indexes..xs+#=P2P2P2P2P2Pr$) added_indexesremoved_indexesrenamed_indexes)r r: option_namerrYrenamed_index_together_valuesrkrrrr:r r;rrUrmrn$_get_altered_foo_together_operationsrr8ror|rrqryr) r,rrr)rrrcrrr new_index new_index_decnew_index_name old_index old_index_decold_index_name old_value new_valueindex_together_app_labelindex_together_model_namerremoved_valuesremoved_index_togetherrenamed_index_together_indexes_r`rh renamed_indexrrrrs @@@@r%rz,MigrationAutodetector.create_altered_indexes-s )5 -8->->*%+D,@%A%AS S  !Iz!044J'N#o4Y5NOO"m29j3HIO)1+>K)1+>KRRRRKRRRMTTTTkTTTO O " "$ * > > ) 5 5 7 7 !.q!1!5!5f!=!=!0 > >I$-$9$9$;$;M%21%5%9%9&%A%AN&66*n<<'..PT/UVVV)00;;;+229=== >$::-9 # 9# 9() !999!%>>>!*!5!5i!@!@.<99*572%2MM *3*?*?*A*A4!%M ) 0D9O4P4P P P #F /A A A:AA)LLL9::a??(Fq(I )00???'..!=#57MN:46OO &!7888)9.,M.O  ' ' +)6+:+:..    WS S r$c |jD]U\\}}}|||}|dD].}||t j|||/VdS)Nrr1r)ryr\_get_dependencies_for_modelrr r:)r,rr) alt_indexesrr2s r%rz,MigrationAutodetector.generate_added_indexess484H4N4N4P4P   0 #Y [;;IzRRL$_5  ""'#-#". #   r$c |jD]B\\}}}|dD]1}||tj||j2CdS)NrrN)ryr\rr RemoveIndexrq)r,rr)rr2s r%rz.MigrationAutodetector.generate_removed_indexess484H4N4N4P4P   0 #Y [$%67  ""*#-"Z   r$c |jD]C\\}}}|dD]2\}}}||tj||||3DdS)Nr)r)rr old_fields)ryr\rr RenameIndex)r,rr)rrrrs r%rz.MigrationAutodetector.generate_renamed_indexess484H4N4N4P4P   0 #Y [>I!?  : ""*#-!/!/#-    r$c tjj}t|jD]\}}|j||f|}|jj||f}|j j||f}|j | |j | fd D} fd D}|j ||f||didS)Ncg|]}|v| Sr#r#)r6cold_constraintss r%rNzDMigrationAutodetector.create_altered_constraints..#VVVQQo=U=Uq=U=U=Ur$cg|]}|v| Sr#r#)r6rnew_constraintss r%rNzDMigrationAutodetector.create_altered_constraints..rr$)added_constraintsremoved_constraints) r r;rrkrrrr:r r;rrzr) r,rrr)rrrcadd_constraintsrem_constraintsrrs @@r%rz0MigrationAutodetector.create_altered_constraintss  .: %+D,@%A%A   !Iz!044J'N#o4Y5NOO"m29j3HIO-5kBO-5kBOVVVV/VVVOVVVV/VVVO  $ + + +-..      r$c |jD]U\\}}}|||}|dD].}||t j|||/VdS)Nrr3r)rzr\rrr r;)r,rr)alt_constraintsrr4s r%rz0MigrationAutodetector.generate_added_constraintss#6<<>>      ;;IzRRL-.AB   "",#-#-". #   r$c |jD]B\\}}}|dD]1}||tj||j2CdS)NrrN)rzr\rr RemoveConstraintrq)r,rr)rr4s r%rz2MigrationAutodetector.generate_removed_constraintss#6<<>>      -.CD   ""/#-'_   r$cd}tjdr jj}nb|j||f}|D]>\\}}}t fd|Dr |d|}n?tdd} | d} | } nt|||\} } t| | dtj j g} tjddrRtjj ||\} }| t| |dtj j | S)Nr8c3.K|]}|jkVdSr()rl)r6rJrrs r%rPzJMigrationAutodetector._get_dependencies_for_foreign_key..s?%]77r$rswappable_settingrr)rcrlr8rr\rrrrrr&rrrn)rr)rr project_stateremote_field_modelrremote_app_labelremote_model_nameror dep_app_labeldep_object_namerthrough_app_labelthrough_object_names ` r%rz7MigrationAutodetector._get_dependencies_for_foreign_keys! 5%w / / !&!3!9  %/ :0EFIAJARAR  =5!#4v)/-=)R)R?P)R)R&E $E+>EE  ()M/OO-=".. *M? 6I6N6U   5%y$ 7 7 5E"*66 2 2   #%'',3    r$c g}tj|jj}t |j|jz }|D]\}}}|jj||f|}|j r |j j s |j |vr9| t|||j tjj|Sr()r Q expressionreferenced_base_fieldsrkrrr;r_rlr8rqrnrr&r) r,rrrrnewly_added_fieldsrr)added_field_name added_fields r%rvz;MigrationAutodetector._get_dependencies_for_generated_fields !'%*:!;!;!R#D$7$:M$MNN7I   3Iz#3-.y*/DEOO K( -8-E-K !%;;;##'!"#(+07 r$c g}|jj||f}|jD]9}|jr0||||||j:|S)z3Return foreign key dependencies of the given model.)r;r rorrrr)r,rr)rrrrs r%rz1MigrationAutodetector._get_dependencies_for_model%s m*9j+@A  '..00  E  ##::!" r$c # KtjD]1\ j f }jj |f}jj f}|j|}|r fd|Dn t}|j|}|rt|n t}||krmg}|D]_}|D]Z} | | } | j r<| j j r0| | j[`|| |fV3dS)NcJh|]}tfd|D S)c3TK|]"}j|f|V#dSr(r)r6nrr)r,s r%rPzWMigrationAutodetector._get_altered_foo_together_operations...AsQ+//J0JANNr$)rZ)r6rrr)r,s r%r9zMMigrationAutodetector._get_altered_foo_together_operations..@se  !'r$)rkrrrr:r r;rr|r_rlr8rr) r,rrrrcrrr foo_togethersr0rrrr)s ` @@r%rz:MigrationAutodetector._get_altered_foo_together_operations5s%+D,@%A%A, ,  !Iz!044J'N#o4Y5NOO"m29j3HIO(/33K@@I #, UU (/33K@@I*3>III%%! %.  M&3   / 9 9* E E -%2D2J(// $ F F$-$.$)$(M !"!"  M, , r$c |jD]h\}}}|tjkrfd|D}||}|s|r'|ddi|j|i|idS)Nc6h|]}|jfv|Sr#)r)r6rMrr)r,s r%r9zOMigrationAutodetector._generate_removed_altered_foo_together..msK=i>STUUUUUr$rqrr#)rrr rr9r)r,rrrr removal_valuerr)s` @@r%&_generate_removed_altered_foo_togetherzMigrationAutodetector.generate_removed_altered_unique_together}s 33J4RSSSSSr$c ||jD]J\}}}}}||}||kr'|||dd|i|j|i|KdS)Nrqrr#)rrr9r)r,rrrrr)rrs r%_generate_altered_foo_togetherz4MigrationAutodetector._generate_altered_foo_togethers 6 6y7L M M       %229==MM))""ITT:T)2G1STT!-#  r$cD|tjdSr()rr rr+s r%rz6MigrationAutodetector.generate_altered_unique_togethers ++J,JKKKKKr$c|j|j|j}t |D]\}}|j||f|}|jj||f}|j j||f}|j d}|j d}||kr*| |tj ||dS)Ndb_table)rqtable)runionrrrkrrr:r r;rrr AlterModelTable) r,models_to_checkrr)rrrcold_db_table_namenew_db_table_names r%rz/MigrationAutodetector.generate_altered_db_tables .44  $":  &,O%<%<   !Iz!044J'N#o4Y5NOO"m29j3HIO / 7 ; ;J G G  / 7 ; ;J G G  $555"".'/  r$c|j|j|j}t |D]\}}|j||f|}|jj||f}|j j||f}|j d}|j d}||kr*| |tj ||dS)Ndb_table_comment)rq table_comment)rrrrrkrrr:r r;rrr AlterModelTableComment) r,rrr)rrrcold_db_table_commentnew_db_table_comments r%rz7MigrationAutodetector.generate_altered_db_table_comments .44  $":  &,O%<%<   !Iz!044J'N#o4Y5NOO"m29j3HIO#2#:#>#>?Q#R#R #2#:#>#>?Q#R#R #';;;""5'&:  r$c(|j|j|j|j|jz|j|jz}t|D]\}}|j ||f|}|j j ||f}|j j ||f}d|jD}d|jD}||kr*||t#j||dS)z Work out if any non-schema-affecting options have changed and make an operation to represent them in state changes (in case Python code in migrations needs them). c6i|]\}}|tjv||Sr#r ALTER_OPTION_KEYSr6rSrMs r%rTzBMigrationAutodetector.generate_altered_options..7C+===U===r$c6i|]\}}|tjv||Sr#rrs r%rTzBMigrationAutodetector.generate_altered_options..r r$)rqrN)rrrrrrr}rrkrrr:r r;rr\rr r ) r,rrr)rrrc old_options new_optionss r%rz.MigrationAutodetector.generate_altered_optionssV .44   $  #d&9 9  $"9 9   &,O%<%<   !Iz!044J'N#o4Y5NOO"m29j3HIO"1"9"?"?"A"AK "1"9"?"?"A"AK k))""0' +#  r$c rt|jD] \}}|j||f|}|jj||f}|jj||f}|jd|jdkrg}|jdr?|t|||jdtj j | |tj||jd|"dS)Nrr/r)rkrrrr:r r;rrnrr&rrr r)r,rr)rrrcrs r%rz.Gs4***+,HLLA&&***r$) rrYr\r< ask_initialrq parse_number enumeraterrn suggest_namejoinr)r,rGrCrFleavesrrapp_leafleafr next_numberinew_name_partsrrs @r%rAz'MigrationAutodetector.arrange_for_graphs[ !!##%)'--//%:%:# *# * !Iz H  7i''#HE((C(CI(N(N!+UUI=F ._s*UUU)"&&y"55UUUr$)r\rrr|rrrY) r,rG app_labelsrrrrrq required_appsold_required_appsr"s @r%rBz#MigrationAutodetector._trim_to_appsLs%,]]__ U U !Iz' U U +4+AUU'M4$// 355AAEEmTTTTU UJ  =00 #M 2 2  M UUUU}UUU   =00 g ' 'I --I&r$ctjd|x}rt|dStjd|}|rt|dSdS)u Given a migration name, try to extract a number from the beginning of it. For a squashed migration such as '0001_squashed_0004…', return the second number. If no number is found, return None. z.*_squashed_(\d+)rz^\d+rN)researchintmatch)clsrqsquashed_matchr*s r%rz"MigrationAutodetector.parse_numbergs_ Y';TBB B> *~a()) )$''  !uQx== tr$r()NNN)NN)NF)7rrr__doc__r>rGrKrtr@rr staticmethodrrrrrrrrrrrrrrrrprrrrrrrrrrrrvrrrrrrrrrrrrArB classmethodrr#r$r%r3r3*s  GGGG    $$$L   ggggR   .(  \ (v"v"v"v"pKKK$$RKRKRKhRRRR.B"B"B"H[[[z(((T]]]~   <"<"<"|#I#I#IJJJJ8 8 8 tLLL   4yRyRyRvWWWr         .   ++\+Z* ---^2TTT LLL*,&&&P   D 2222h6  [   r$r3)!r]r' collectionsrrenumrgraphlibr itertoolsr django.confr django.dbr django.db.migrationsr django.db.migrations.migrationr &django.db.migrations.operations.modelsr django.db.migrations.optimizerr django.db.migrations.questionerrdjango.db.migrations.utilsrrrdjango.utils.functionalrrr3r#r$r%r=s ////////&&&&&& ++++++444444DDDDDD======?????? 433333'''''J$&LMM'''&IIIIIIIIIIr$