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Returns all Migrations for all `applications` that are migrated.
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c C s? t | t � r% | j d � d } n | j j d � d } | S( sN Works out the app label from either the app label, the app name, or the moduleR i����( t
isinstanceR R R ( t applicationt app_label( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt application_to_app_label& s t MigrationsMetaclassc B s) e Z d Z d � Z d � Z d � Z RS( sc
Metaclass which ensures there is only one instance of a Migrations for
any given app.
c C s) t t | � j | | | � i | _ d S( N( t superR$ t __init__t instances( t selft namet basest dict( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyR& 6 s c K sQ t | � } | | j k rF t t | � j t | � | � | j | <n | j | S( N( R# R' R% R$ t __call__R ( R( R! t kwdsR" ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyR, : s +c C s
i | _ d S( s& Clears the cache of Migration objects.N( R' ( R( ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt _clear_cacheD s ( R t
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Holds a list of Migration objects for a particular app.
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SOUTH_USE_PYCs# (?!__init__)[0-9a-zA-Z_]*(\.pyc?)?$s! (?!__init__)[0-9a-zA-Z_]*(\.py)?$c C s i | _ | j | | | � d S( sO Constructor. Takes the module of the app, NOT its models (like get_app returns)N( t _cachet set_application( R( R! t force_creationt verbose_creation( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyR& W s c C s� | j � } t j j | � sE | r5 t d | � n t j | � n t j j | d � } t j j | � s� | r� t d | � n t | d � j � n d S( sE Given an application, ensures that the migrations directory is ready.s( Creating migrations directory at '%s'...s __init__.pys Creating __init__.py in '%s'...t wN(
t migrations_dirt ost patht isdirt printt mkdirR t isfilet opent close( R( t verboseR7 t init_path( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt create_migrations_directory\ s c C s� | j � } y t j | � } Wn� t k
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Returns the full path of the migrations directory.
If it doesn't exist yet, returns where it would exist, based on the
app's migrations module (defaults to app.migrations)
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import_modulet ImportErrorR R R t InvalidMigrationModuleR! R R8 R9 t dirnamet __file__( R( t module_pathRC t parent( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyR7 l s
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rz | j j d SX| Sd S( s9 Returns the module name of the migrations module for thist SOUTH_MIGRATION_MODULESs .south_migrationss .migrationsN(
R# R! t hasattrR RL t _applicationR R RE RF ( R( R" t module_name( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyRD � s
c C s | j S( N( RN ( R( ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt get_application� s c C s� | | _ t | d � r� t | d � r� y) t j | j � � } | | _ | _ Wq� t k
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Called when the application for this Migrations is set.
Imports the migrations module object, and throws a paddy if it can't.
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c C sB t j | � } | | j k r7 t | | � | j | <n | j | S( N( t Migrationt strip_filenameR2 ( R( t filenameR) ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyRU � s c C s2 t | t � r | j | � St t | � j | � S( N( R R RU R% R t __getitem__( R( t value( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyRg � s
c C s� t j | � } g | D]! } | j � j | � r | ^ q } t | � d k rW | d St | � d k r~ t j | | � � n t j | d � � d S( Ni i ( Rd Re R) t
startswitht lenR t MultiplePrefixMatchest UnknownMigrationR ( R( t prefixt mt matches( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt _guess_migration� s .c C s? | d k s | r d S| d k r+ | d S| j d | � Sd S( Nt zeroi����Rm ( R Rp ( R( t target_name( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt guess_migration� s
c C s | j j j d � d S( NR i����( RN R R ( R( ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyR" � s c C s
| j j S( N( RS R ( R( ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt full_name� s c C sY t | d t � r | r d Sx, t � D]! } x | D] } | j � q4 Wq' Wt | _ d S( s@ Goes through all the migrations, and works out the dependencies.t _dependencies_doneN( R] R^ R t calculate_dependenciest TrueRu ( t clst forceRQ RU ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyRv � s
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Wd S( sD Goes through all the migrations, and invalidates all cached modules.N( R t invalidate_module( RQ RU ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt invalidate_all_modules� s
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Wd | d | f S( sL Returns the fully-formatted filename of what a new migration 'name' would bei t _s
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( R R/ R0 R] R R^ t ret compileRY Rw R& RB R7 RD RP R3 t propertyR! RT RU Rg Rp Rs R" Rt t classmethodRv t staticmethodR{ R� ( ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyR I s,
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Class which represents a particular migration file on-disk.
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Returns the migration class implied by 'filename'.
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dependents( R( RQ Rf ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyR& s c C s | j � d | j � S( Nt :( R" R) ( R( ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt __str__ s c C s d t | � S( Ns <Migration: %s>( t str( R( ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt __repr__ s c C s. | j � | j � k o- | j � | j � k S( N( R" R) ( R( t other( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt __eq__ s c C s t t | � � S( N( t hashR� ( R( ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt __hash__" s c C s
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| S( s) Tries to load the actual migration moduleRd c S s | S( N( ( t x( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt <lambda>? s ( Rt t syst modulest KeyErrort
__import__RF R Rl t exc_infot Exceptiont BrokenMigrationR| R t datetime( R( Rt RU t e( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyRU 2 s
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| j � j S( s+ Returns the Migration class from the module( RU Rd ( R( ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt migration_classD s c C s
| j � � S( s Instantiates the migration_class( R� ( R( ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt migration_instanceH s c C s1 | j j | � d } | d k r& d S| j | S( sA Returns the migration that comes before this one in the sequence.i i N( RQ t indexR ( R( R� ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt previousM s c C s: | j j | � d } | t | j � k r/ d S| j | S( s@ Returns the migration that comes after this one in the sequence.i N( RQ R� Rj R ( R( R� ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt nextU s c c s� x� t | j � | g � D]� \ } } y t | � } Wn# t k
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Given the name of an attribute (depends_on or needed_by), either yields
a list of migration objects representing it, or errors out.
N( R] R� R R R t DependsOnUnmigratedApplicationRU Rl t DependsOnUnknownMigrationt is_beforeR^ t DependsOnHigherMigration( R( t attrnameR R) RQ RU ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt _get_dependency_objects] s %
c C s� x7 | j d � D]& } | j j | � | j j | � q Wx7 | j d � D]& } | j j | � | j j | � qJ W| j � } | r� | j j | � | j j | � n d S( s~
Loads dependency info for this migration, and stores it in itself
and any other relevant migrations.
t
depends_ont needed_byN( R� R� t addR� R� ( R( RU R� ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyRv p s c C s! t | j � � | j j � d S( s�
Removes the cached version of this migration's module import, so we
have to re-import it. Used when south.db.db changes.
N( R RU t _invalidate( R( ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyRz � s c C s
| j � j S( N( R� t forwards( R( ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyR� � s c C s
| j � j S( N( R� t backwards( R( ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyR� � s c C s t | d � � S( s�
Returns a list of Migration objects to be applied, in order.
This list includes `self`, which will be applied last.
c S s | j S( N( R� ( R� ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyR� � s ( R ( R( ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt
forwards_plan� s c C s t | d � � S( Nc S s | j S( N( R� ( R� ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyR� � s ( R ( R( ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt _backwards_plan� s c C s t | j � � S( s�
Returns a list of Migration objects to be unapplied, in order.
This list includes `self`, which will be unapplied last.
( t listR� ( R( ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt backwards_plan� s c C s0 | j | j k r, | j | j k r( t St Sd S( N( RQ Rf Rw R^ ( R( R� ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyR� � s c C s0 | j | j k r, | j | j k r( t St Sd S( N( RQ Rf Rw R^ ( R( R� ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt is_after� s c C sW t | j � d t � r" | j � S| j � } | d k rM t d | j � � S| j � S( Nt symmetrical( R] R� R^ t ormR� R R R" ( R( R� ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt prev_orm� s
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__future__R t collectionsR R� t impR R8 R� R� t django.core.exceptionsR t django.dbR t django.confR t django.utilsR t southR t south.migration.utilsR R R
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R R R t south.utils.py3R R R R R# t typeR$ R� R t objectRd ( ( ( s8 /usr/lib/python2.7/site-packages/south/migration/base.pyt <module> s* " �