Révision bf1da717
Ajouté par Thomas Noël il y a plus de 9 ans
| entrouvert/djommon/safemigrate/management/commands/safemigrate.py | ||
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from django.core.management.base import NoArgsCommand |
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from django.db import connections, router, models |
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from django.db import connection, models |
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from south.models import MigrationHistory |
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from south.management.commands import syncdb, migrate |
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from django.core.management.commands import syncdb as django_syncdb |
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from django.core.management.commands.syncdb import Command as DjangoSyncdbCommand |
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from south.management.commands.syncdb import Command as SouthSyncdbCommand |
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from south.management.commands.migrate import Command as SouthMigrateCommand |
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class Command(NoArgsCommand): |
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option_list = django_syncdb.Command.option_list
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help = '''syncdb + migrate, with "migrate --fake app 0001" for apps with new initial migrations'''
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option_list = DjangoSyncdbCommand.option_list
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help = "syncdb and migrate the project, migrate '--fake app 0001' each app that has a new initial migration"
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def handle_noargs(self, *args, **options): |
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verbosity = int(options['verbosity']) |
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# step 1 : syncdb, create all apps without migrations |
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syncdb.Command().execute(migrate_all=False, migrate=False, **options) |
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SouthSyncdbCommand().execute(migrate_all=False, migrate=False, **options) |
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# step 2 : detect and "fake 0001" all installed apps that had never |
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# migrated (applications in database but not in south history) |
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if verbosity > 0: |
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self.fake_if_needed(verbosity) |
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# step 3 : migrate |
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if verbosity > 0: |
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SouthMigrateCommand().execute(**options) |
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def fake_if_needed(self, verbosity=1): |
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# detect installed models |
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# (code borrowed from django syncdb command) |
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db = options.get('database')
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connection = connections[db] |
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cursor = connection.cursor() |
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tables = connection.introspection.table_names() |
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def model_in_database(model): |
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opts = model._meta |
| ... | ... | |
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applied_migrations = MigrationHistory.objects.filter(app_name__in=[app.app_label() for app in apps]) |
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applied_migrations_lookup = dict(('%s.%s' % (mi.app_name, mi.migration), mi) for mi in applied_migrations)
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print 'Status after syncdb:' |
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if verbosity > 0: |
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print 'Status after syncdb:' |
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for app in apps: |
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# for each app with migrations, list already applied migrations |
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applied_migrations = [] |
| ... | ... | |
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applied_migration = applied_migrations_lookup[full_name] |
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if applied_migration.applied: |
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applied_migrations.append(migration.name()) |
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# try all models in database, if there none, the application is new |
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# (because south syncdb does not create any tables) |
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new = True |
| ... | ... | |
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if model_in_database(m): |
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new = False |
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break |
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if new: |
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status = 'application-is-new' |
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elif not applied_migrations: |
| ... | ... | |
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else: |
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status = 'normal' |
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print ' - %s: %s' % (app.app_label(), status)
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if verbosity > 0:
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print ' - %s: %s' % (app.app_label(), status) |
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if status == 'migration-is-new': |
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print ' need fake migration to 0001_initial' |
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if verbosity > 0: |
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print ' need fake migration to 0001_initial' |
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# migrate --fake gdc 0001 |
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migrate.Command().execute(app=app.app_label(), target='0001', fake=True) |
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migrate.Command().execute(**options) |
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SouthMigrateCommand().execute(app=app.app_label(), target='0001', fake=True, verbosity=verbosity) |
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Formats disponibles : Unified diff
improve safemigrate command (#5781)
better readability, handle verbosity, prepare for safemigrate_schema