Rename pre_ and post_syncdb to *_migrate, with aliases from old names
This commit is contained in:
Andrew Godwin
parent
086389f5fc
commit
68e0a169c4
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@ -187,7 +187,7 @@ def get_default_username(check_db=True):
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return ''
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return default_username
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signals.post_syncdb.connect(create_permissions,
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signals.post_migrate.connect(create_permissions,
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dispatch_uid="django.contrib.auth.management.create_permissions")
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signals.post_syncdb.connect(create_superuser,
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signals.post_migrate.connect(create_superuser,
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sender=auth_app, dispatch_uid="django.contrib.auth.management.create_superuser")
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@ -88,7 +88,7 @@ def update_all_contenttypes(verbosity=2, **kwargs):
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for app in get_apps():
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update_contenttypes(app, None, verbosity, **kwargs)
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signals.post_syncdb.connect(update_contenttypes)
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signals.post_migrate.connect(update_contenttypes)
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if __name__ == "__main__":
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update_all_contenttypes()
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@ -45,7 +45,7 @@ class SpatiaLiteCreation(DatabaseCreation):
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# We need to then do a flush to ensure that any data installed by
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# custom SQL has been removed. The only test data should come from
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# test fixtures, or autogenerated from post_syncdb triggers.
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# test fixtures, or autogenerated from post_migrate triggers.
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# This has the side effect of loading initial data (which was
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# intentionally skipped in the syncdb).
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call_command('flush',
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@ -33,4 +33,4 @@ def create_default_site(app, created_models, verbosity, db, **kwargs):
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Site.objects.clear_cache()
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signals.post_syncdb.connect(create_default_site, sender=site_app)
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signals.post_migrate.connect(create_default_site, sender=site_app)
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@ -6,7 +6,7 @@ from django.db import connections, router, transaction, models, DEFAULT_DB_ALIAS
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from django.core.management import call_command
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from django.core.management.base import NoArgsCommand, CommandError
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from django.core.management.color import no_style
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from django.core.management.sql import sql_flush, emit_post_sync_signal
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from django.core.management.sql import sql_flush, emit_post_migrate_signal
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from django.utils.importlib import import_module
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from django.utils.six.moves import input
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from django.utils import six
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@ -23,8 +23,8 @@ class Command(NoArgsCommand):
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help='Tells Django not to load any initial data after database synchronization.'),
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)
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help = ('Returns the database to the state it was in immediately after '
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'syncdb was executed. This means that all data will be removed '
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'from the database, any post-synchronization handlers will be '
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'migrate was first executed. This means that all data will be removed '
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'from the database, any post-migration handlers will be '
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're-executed, and the initial_data fixture will be re-installed.')
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def handle_noargs(self, **options):
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@ -35,7 +35,7 @@ class Command(NoArgsCommand):
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# The following are stealth options used by Django's internals.
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reset_sequences = options.get('reset_sequences', True)
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allow_cascade = options.get('allow_cascade', False)
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inhibit_post_syncdb = options.get('inhibit_post_syncdb', False)
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inhibit_post_migrate = options.get('inhibit_post_migrate', False)
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self.style = no_style()
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@ -54,7 +54,7 @@ class Command(NoArgsCommand):
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if interactive:
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confirm = input("""You have requested a flush of the database.
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This will IRREVERSIBLY DESTROY all data currently in the %r database,
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and return each table to the state it was in after syncdb.
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and return each table to a fresh state.
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Are you sure you want to do this?
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Type 'yes' to continue, or 'no' to cancel: """ % connection.settings_dict['NAME'])
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@ -77,8 +77,8 @@ Are you sure you want to do this?
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"The full error: %s") % (connection.settings_dict['NAME'], e)
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six.reraise(CommandError, CommandError(new_msg), sys.exc_info()[2])
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if not inhibit_post_syncdb:
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self.emit_post_syncdb(verbosity, interactive, db)
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if not inhibit_post_migrate:
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self.emit_post_migrate(verbosity, interactive, db)
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# Reinstall the initial_data fixture.
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if options.get('load_initial_data'):
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@ -89,13 +89,13 @@ Are you sure you want to do this?
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self.stdout.write("Flush cancelled.\n")
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@staticmethod
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def emit_post_syncdb(verbosity, interactive, database):
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# Emit the post sync signal. This allows individual applications to
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# respond as if the database had been sync'd from scratch.
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def emit_post_migrate(verbosity, interactive, database):
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# Emit the post migrate signal. This allows individual applications to
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# respond as if the database had been migrated from scratch.
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all_models = []
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for app in models.get_apps():
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all_models.extend([
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m for m in models.get_models(app, include_auto_created=True)
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if router.allow_syncdb(database, m)
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])
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emit_post_sync_signal(set(all_models), verbosity, interactive, database)
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emit_post_migrate_signal(set(all_models), verbosity, interactive, database)
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@ -6,7 +6,7 @@ from django.conf import settings
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from django.core.management import call_command
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from django.core.management.base import BaseCommand, CommandError
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from django.core.management.color import color_style, no_style
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from django.core.management.sql import custom_sql_for_model, emit_post_sync_signal, emit_pre_sync_signal
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from django.core.management.sql import custom_sql_for_model, emit_post_migrate_signal, emit_pre_migrate_signal
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from django.db import connections, router, transaction, models, DEFAULT_DB_ALIAS
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from django.db.migrations.executor import MigrationExecutor
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from django.db.migrations.loader import AmbiguityError
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@ -99,10 +99,14 @@ class Command(BaseCommand):
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# Run the syncdb phase.
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# If you ever manage to get rid of this, I owe you many, many drinks.
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# Note that pre_migrate is called from inside here, as it needs
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# the list of models about to be installed.
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if run_syncdb:
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if self.verbosity >= 1:
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self.stdout.write(self.style.MIGRATE_HEADING("Synchronizing apps without migrations:"))
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self.sync_apps(connection, executor.loader.unmigrated_apps)
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created_models = self.sync_apps(connection, executor.loader.unmigrated_apps)
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else:
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created_models = []
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# Migrate!
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if self.verbosity >= 1:
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@ -113,6 +117,10 @@ class Command(BaseCommand):
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else:
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executor.migrate(targets, plan, fake=options.get("fake", False))
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# Send the post_migrate signal, so individual apps can do whatever they need
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# to do at this point.
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emit_post_migrate_signal(created_models, self.verbosity, self.interactive, connection.alias)
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def migration_progress_callback(self, action, migration):
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if self.verbosity >= 1:
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if action == "apply_start":
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@ -159,7 +167,7 @@ class Command(BaseCommand):
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)
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create_models = set([x for x in itertools.chain(*manifest.values())])
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emit_pre_sync_signal(create_models, self.verbosity, self.interactive, connection.alias)
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emit_pre_migrate_signal(create_models, self.verbosity, self.interactive, connection.alias)
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# Create the tables for each model
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if self.verbosity >= 1:
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@ -188,10 +196,6 @@ class Command(BaseCommand):
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# If you can prove we don't need this, remove it.
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transaction.set_dirty(using=connection.alias)
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# Send the post_syncdb signal, so individual apps can do whatever they need
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# to do at this point.
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emit_post_sync_signal(created_models, self.verbosity, self.interactive, connection.alias)
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# The connection may have been closed by a syncdb handler.
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cursor = connection.cursor()
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@ -220,6 +224,7 @@ class Command(BaseCommand):
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if self.verbosity >= 1:
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self.stdout.write(" Installing indexes...\n")
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# Install SQL indices for all newly created models
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for app_name, model_list in manifest.items():
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for model in model_list:
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@ -238,3 +243,5 @@ class Command(BaseCommand):
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# Load initial_data fixtures (unless that has been disabled)
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if self.load_initial_data:
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call_command('loaddata', 'initial_data', verbosity=self.verbosity, database=connection.alias, skip_validation=True)
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return created_models
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@ -192,25 +192,25 @@ def custom_sql_for_model(model, style, connection):
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return output
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def emit_pre_sync_signal(create_models, verbosity, interactive, db):
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# Emit the pre_sync signal for every application.
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def emit_pre_migrate_signal(create_models, verbosity, interactive, db):
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# Emit the pre_migrate signal for every application.
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for app in models.get_apps():
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app_name = app.__name__.split('.')[-2]
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if verbosity >= 2:
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print("Running pre-sync handlers for application %s" % app_name)
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models.signals.pre_syncdb.send(sender=app, app=app,
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print("Running pre-migrate handlers for application %s" % app_name)
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models.signals.pre_migrate.send(sender=app, app=app,
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create_models=create_models,
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verbosity=verbosity,
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interactive=interactive,
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db=db)
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def emit_post_sync_signal(created_models, verbosity, interactive, db):
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# Emit the post_sync signal for every application.
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def emit_post_migrate_signal(created_models, verbosity, interactive, db):
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# Emit the post_migrate signal for every application.
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for app in models.get_apps():
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app_name = app.__name__.split('.')[-2]
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if verbosity >= 2:
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print("Running post-sync handlers for application %s" % app_name)
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models.signals.post_syncdb.send(sender=app, app=app,
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print("Running post-migrate handlers for application %s" % app_name)
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models.signals.post_migrate.send(sender=app, app=app,
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created_models=created_models, verbosity=verbosity,
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interactive=interactive, db=db)
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@ -344,7 +344,7 @@ class BaseDatabaseCreation(object):
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# We need to then do a flush to ensure that any data installed by
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# custom SQL has been removed. The only test data should come from
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# test fixtures, or autogenerated from post_syncdb triggers.
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# test fixtures, or autogenerated from post_migrate triggers.
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# This has the side effect of loading initial data (which was
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# intentionally skipped in the syncdb).
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call_command('flush',
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@ -12,7 +12,9 @@ post_save = Signal(providing_args=["instance", "raw", "created", "using", "updat
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pre_delete = Signal(providing_args=["instance", "using"], use_caching=True)
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post_delete = Signal(providing_args=["instance", "using"], use_caching=True)
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pre_syncdb = Signal(providing_args=["app", "create_models", "verbosity", "interactive", "db"])
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post_syncdb = Signal(providing_args=["class", "app", "created_models", "verbosity", "interactive", "db"], use_caching=True)
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pre_migrate = Signal(providing_args=["app", "create_models", "verbosity", "interactive", "db"])
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pre_syncdb = pre_migrate
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post_migrate = Signal(providing_args=["class", "app", "created_models", "verbosity", "interactive", "db"], use_caching=True)
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post_syncdb = post_migrate
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m2m_changed = Signal(providing_args=["action", "instance", "reverse", "model", "pk_set", "using"], use_caching=True)
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@ -718,7 +718,7 @@ class TransactionTestCase(SimpleTestCase):
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"""Performs any pre-test setup. This includes:
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* If the class has an 'available_apps' attribute, restricting the app
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cache to these applications, then firing post_syncdb -- it must run
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cache to these applications, then firing post_migrate -- it must run
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with the correct set of applications for the test case.
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* If the class has a 'fixtures' attribute, installing these fixtures.
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"""
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@ -726,8 +726,7 @@ class TransactionTestCase(SimpleTestCase):
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if self.available_apps is not None:
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cache.set_available_apps(self.available_apps)
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for db_name in self._databases_names(include_mirrors=False):
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flush.Command.emit_post_syncdb(
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verbosity=0, interactive=False, database=db_name)
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flush.Command.emit_post_migrate(verbosity=0, interactive=False, database=db_name)
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try:
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self._fixture_setup()
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except Exception:
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@ -772,7 +771,7 @@ class TransactionTestCase(SimpleTestCase):
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"""Performs any post-test things. This includes:
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* Flushing the contents of the database, to leave a clean slate. If
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the class has an 'available_apps' attribute, post_syncdb isn't fired.
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the class has an 'available_apps' attribute, post_migrate isn't fired.
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* Force-closing the connection, so the next test gets a clean cursor.
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"""
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try:
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@ -790,14 +789,14 @@ class TransactionTestCase(SimpleTestCase):
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cache.unset_available_apps()
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def _fixture_teardown(self):
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# Allow TRUNCATE ... CASCADE and don't emit the post_syncdb signal
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# Allow TRUNCATE ... CASCADE and don't emit the post_migrate signal
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# when flushing only a subset of the apps
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for db_name in self._databases_names(include_mirrors=False):
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call_command('flush', verbosity=0, interactive=False,
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database=db_name, skip_validation=True,
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reset_sequences=False,
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allow_cascade=self.available_apps is not None,
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inhibit_post_syncdb=self.available_apps is not None)
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inhibit_post_migrate=self.available_apps is not None)
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def assertQuerysetEqual(self, qs, values, transform=repr, ordered=True):
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items = six.moves.map(transform, qs)
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@ -267,7 +267,7 @@ To enable the sites framework, follow these steps:
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3. Run :djadmin:`migrate`.
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``django.contrib.sites`` registers a
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:data:`~django.db.models.signals.post_syncdb` signal handler which creates a
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:data:`~django.db.models.signals.post_migrate` signal handler which creates a
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default site named ``example.com`` with the domain ``example.com``. This site
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will also be created after Django creates the test database. To set the
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correct name and domain for your project, you can use an :doc:`initial data
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@ -360,40 +360,36 @@ Management signals
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Signals sent by :doc:`django-admin </ref/django-admin>`.
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pre_syncdb
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----------
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pre_migrate
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-----------
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.. data:: django.db.models.signals.pre_syncdb
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.. data:: django.db.models.signals.pre_migrate
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:module:
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Sent by the :djadmin:`syncdb` command before it starts to install an
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Sent by the :djadmin:`migrate` command before it starts to install an
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application.
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Any handlers that listen to this signal need to be written in a particular
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place: a ``management`` module in one of your :setting:`INSTALLED_APPS`. If
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handlers are registered anywhere else they may not be loaded by
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:djadmin:`syncdb`.
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:djadmin:`migrate`.
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Arguments sent with this signal:
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``sender``
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The ``models`` module that was just installed. That is, if
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:djadmin:`syncdb` just installed an app called ``"foo.bar.myapp"``,
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``sender`` will be the ``foo.bar.myapp.models`` module.
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The ``models`` module of the app about to be migrated/synced.
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For example, if :djadmin:`migrate` is about to install
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an app called ``"foo.bar.myapp"``, ``sender`` will be the
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``foo.bar.myapp.models`` module.
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``app``
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Same as ``sender``.
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``create_models``
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A list of the model classes from any app which :djadmin:`syncdb` plans to
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create.
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``verbosity``
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Indicates how much information manage.py is printing on screen. See
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the :djadminopt:`--verbosity` flag for details.
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Functions which listen for :data:`pre_syncdb` should adjust what they
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Functions which listen for :data:`pre_migrate` should adjust what they
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output to the screen based on the value of this argument.
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``interactive``
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@ -407,42 +403,57 @@ Arguments sent with this signal:
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``db``
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The alias of database on which a command will operate.
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post_syncdb
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-----------
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.. data:: django.db.models.signals.post_syncdb
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pre_syncdb
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----------
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.. data:: django.db.models.signals.pre_syncdb
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:module:
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Sent by the :djadmin:`syncdb` command after it installs an application, and the
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.. deprecated:: 1.7
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This signal has been renamed to :data:`~django.db.models.signals.pre_migrate`.
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Alias of :data:`django.db.models.signals.pre_migrate`. As long as this alias
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is present, for backwards-compatability this signal has an extra argument it sends:
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``create_models``
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A list of the model classes from any app which :djadmin:`migrate` is
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going to create, **only if the app has no migrations**.
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post_migrate
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------------
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.. data:: django.db.models.signals.post_migrate
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:module:
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Sent by the :djadmin:`migrate` command after it installs an application, and the
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:djadmin:`flush` command.
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Any handlers that listen to this signal need to be written in a particular
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place: a ``management`` module in one of your :setting:`INSTALLED_APPS`. If
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handlers are registered anywhere else they may not be loaded by
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:djadmin:`syncdb`. It is important that handlers of this signal perform
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:djadmin:`migrate`. It is important that handlers of this signal perform
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idempotent changes (e.g. no database alterations) as this may cause the
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:djadmin:`flush` management command to fail if it also ran during the
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:djadmin:`syncdb` command.
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:djadmin:`migrate` command.
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Arguments sent with this signal:
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``sender``
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The ``models`` module that was just installed. That is, if
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:djadmin:`syncdb` just installed an app called ``"foo.bar.myapp"``,
|
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:djadmin:`migrate` just installed an app called ``"foo.bar.myapp"``,
|
||||
``sender`` will be the ``foo.bar.myapp.models`` module.
|
||||
|
||||
``app``
|
||||
Same as ``sender``.
|
||||
|
||||
``created_models``
|
||||
A list of the model classes from any app which :djadmin:`syncdb` has
|
||||
created so far.
|
||||
|
||||
``verbosity``
|
||||
Indicates how much information manage.py is printing on screen. See
|
||||
the :djadminopt:`--verbosity` flag for details.
|
||||
|
||||
Functions which listen for :data:`post_syncdb` should adjust what they
|
||||
Functions which listen for :data:`post_migrate` should adjust what they
|
||||
output to the screen based on the value of this argument.
|
||||
|
||||
``interactive``
|
||||
|
|
@ -459,14 +470,34 @@ Arguments sent with this signal:
|
|||
|
||||
For example, ``yourapp/management/__init__.py`` could be written like::
|
||||
|
||||
from django.db.models.signals import post_syncdb
|
||||
from django.db.models.signals import post_migrate
|
||||
import yourapp.models
|
||||
|
||||
def my_callback(sender, **kwargs):
|
||||
# Your specific logic here
|
||||
pass
|
||||
|
||||
post_syncdb.connect(my_callback, sender=yourapp.models)
|
||||
post_migrate.connect(my_callback, sender=yourapp.models)
|
||||
|
||||
|
||||
post_syncdb
|
||||
-----------
|
||||
|
||||
.. data:: django.db.models.signals.post_syncdb
|
||||
:module:
|
||||
|
||||
.. deprecated:: 1.7
|
||||
|
||||
This signal has been renamed to :data:`~django.db.models.signals.post_migrate`.
|
||||
|
||||
Alias of :data:`django.db.models.signals.post_migrate`. As long as this alias
|
||||
is present, for backwards-compatability this signal has an extra argument it sends:
|
||||
|
||||
``created_models``
|
||||
A list of the model classes from any app which :djadmin:`migrate` has
|
||||
created, **only if the app has no migrations**.
|
||||
|
||||
|
||||
|
||||
Request/response signals
|
||||
========================
|
||||
|
|
|
|||
|
|
@ -182,7 +182,7 @@ Advanced features of ``TransactionTestCase``
|
|||
|
||||
By default, ``available_apps`` is set to ``None``. After each test, Django
|
||||
calls :djadmin:`flush` to reset the database state. This empties all tables
|
||||
and emits the :data:`~django.db.models.signals.post_syncdb` signal, which
|
||||
and emits the :data:`~django.db.models.signals.post_migrate` signal, which
|
||||
re-creates one content type and three permissions for each model. This
|
||||
operation gets expensive proportionally to the number of models.
|
||||
|
||||
|
|
@ -190,13 +190,13 @@ Advanced features of ``TransactionTestCase``
|
|||
behave as if only the models from these applications were available. The
|
||||
behavior of ``TransactionTestCase`` changes as follows:
|
||||
|
||||
- :data:`~django.db.models.signals.post_syncdb` is fired before each
|
||||
- :data:`~django.db.models.signals.post_migrate` is fired before each
|
||||
test to create the content types and permissions for each model in
|
||||
available apps, in case they're missing.
|
||||
- After each test, Django empties only tables corresponding to models in
|
||||
available apps. However, at the database level, truncation may cascade to
|
||||
related models in unavailable apps. Furthermore
|
||||
:data:`~django.db.models.signals.post_syncdb` isn't fired; it will be
|
||||
:data:`~django.db.models.signals.post_migrate` isn't fired; it will be
|
||||
fired by the next ``TransactionTestCase``, after the correct set of
|
||||
applications is selected.
|
||||
|
||||
|
|
@ -205,10 +205,10 @@ Advanced features of ``TransactionTestCase``
|
|||
cause unrelated tests to fail. Be careful with tests that use sessions;
|
||||
the default session engine stores them in the database.
|
||||
|
||||
Since :data:`~django.db.models.signals.post_syncdb` isn't emitted after
|
||||
Since :data:`~django.db.models.signals.post_migrate` isn't emitted after
|
||||
flushing the database, its state after a ``TransactionTestCase`` isn't the
|
||||
same as after a ``TestCase``: it's missing the rows created by listeners
|
||||
to :data:`~django.db.models.signals.post_syncdb`. Considering the
|
||||
to :data:`~django.db.models.signals.post_migrate`. Considering the
|
||||
:ref:`order in which tests are executed <order-of-tests>`, this isn't an
|
||||
issue, provided either all ``TransactionTestCase`` in a given test suite
|
||||
declare ``available_apps``, or none of them.
|
||||
|
|
|
|||
Loading…
Reference in New Issue