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import django
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from optparse import NO_DEFAULT
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if django.VERSION >= (1, 7, 0):
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from django.core.management.commands.migrate import Command as MigrateCommand
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from django.db.migrations.recorder import MigrationRecorder
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from django.db import connection
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from django.conf import settings
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from tenant_schemas.utils import get_public_schema_name
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from entrouvert.djommon.multitenant.middleware import TenantMiddleware, TenantNotFound
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from entrouvert.djommon.multitenant.management.commands import SyncCommon
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class MigrateSchemasCommand(SyncCommon):
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help = "Updates database schema. Manages both apps with migrations and those without."
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def run_from_argv(self, argv):
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"""
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Changes the option_list to use the options from the wrapped command.
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Adds schema parameter to specify which schema will be used when
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executing the wrapped command.
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"""
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self.option_list += MigrateCommand.option_list
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super(MigrateSchemasCommand, self).run_from_argv(argv)
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def handle(self, *args, **options):
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super(MigrateSchemasCommand, self).handle(*args, **options)
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self.PUBLIC_SCHEMA_NAME = get_public_schema_name()
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if self.sync_public and not self.schema_name:
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self.schema_name = self.PUBLIC_SCHEMA_NAME
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if self.sync_public:
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self.run_migrations(self.schema_name, settings.SHARED_APPS)
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if self.sync_tenant:
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if self.schema_name and self.schema_name != self.PUBLIC_SCHEMA_NAME:
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try:
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tenant = TenantMiddleware.get_tenant_by_hostname(self.schema_name)
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except TenantNotFound:
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raise RuntimeError('Schema "{}" does not exist'.format(
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self.schema_name))
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else:
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self.run_migrations(tenant.schema_name, settings.TENANT_APPS)
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else:
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all_tenants = TenantMiddleware.get_tenants()
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for tenant in all_tenants:
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self.run_migrations(tenant.schema_name, settings.TENANT_APPS)
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def run_migrations(self, schema_name, included_apps):
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self._notice("=== Running migrate for schema %s" % schema_name)
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connection.set_schema(schema_name)
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command = MigrateCommand()
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defaults = {}
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for opt in MigrateCommand.option_list:
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if opt.dest in self.options:
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defaults[opt.dest] = self.options[opt.dest]
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elif opt.default is NO_DEFAULT:
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defaults[opt.dest] = None
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else:
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defaults[opt.dest] = opt.default
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command.execute(*self.args, **defaults)
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connection.set_schema_to_public()
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def _notice(self, output):
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self.stdout.write(self.style.NOTICE(output))
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if django.VERSION >= (1, 7, 0):
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Command = MigrateSchemasCommand
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else:
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raise RuntimeError('Django 1.7 required')
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