109 lines
4.7 KiB
Python
109 lines
4.7 KiB
Python
# hobo - portal to configure and deploy applications
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# Copyright (C) 2019 Entr'ouvert
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#
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# This program is free software: you can redistribute it and/or modify it
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# under the terms of the GNU Affero General Public License as published
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# by the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import django
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from django.apps import apps
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from django.conf import settings
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from django.core.management.commands.migrate import Command as MigrateCommand
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from django.db import connection
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from django.db.migrations.loader import MigrationLoader
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from django.db.migrations.recorder import MigrationRecorder
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from tenant_schemas.postgresql_backend.base import FakeTenant
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from tenant_schemas.utils import get_public_schema_name, schema_exists
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from hobo.multitenant.management.commands import SyncCommon
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from hobo.multitenant.middleware import TenantMiddleware, TenantNotFound
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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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requires_system_checks = []
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def add_arguments(self, parser):
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super().add_arguments(parser)
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command = MigrateCommand()
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command.add_arguments(parser)
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parser.set_defaults(verbosity=0)
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def handle(self, *args, **options):
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super().handle(*args, **options)
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if self.domain:
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try:
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tenant = TenantMiddleware.get_tenant_by_hostname(self.domain)
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except TenantNotFound:
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raise RuntimeError(f'Tenant "{self.domain}" does not exist')
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else:
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self.run_migrations(tenant, settings.TENANT_APPS)
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elif self.schema_name:
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self.run_migrations_on_schema(self.schema_name, settings.TENANT_APPS)
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else:
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app_labels = []
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for app in apps.get_app_configs():
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if app.name in settings.TENANT_APPS:
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app_labels.append(app.label)
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loader = MigrationLoader(None)
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loader.load_disk()
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all_migrations = {
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(app, migration) for app, migration in loader.disk_migrations if app in app_labels
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}
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for tenant in TenantMiddleware.get_tenants():
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connection.set_tenant(tenant, include_public=False)
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applied_migrations = self.get_applied_migrations(app_labels)
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if options.get('fake') or options.get('migration_name') or options.get('app_label'):
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# never skip migrations if explicit migration actions
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# are given.
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applied_migrations = []
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if all([x in applied_migrations for x in all_migrations]):
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if int(self.options.get('verbosity', 1)) >= 1:
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self._notice("=== Skipping migrations of tenant %s" % tenant.domain_url)
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continue
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self.run_migrations(tenant, settings.TENANT_APPS)
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def get_applied_migrations(self, app_labels):
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applied_migrations = []
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with connection.cursor() as cursor:
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cursor.execute('SELECT app, name FROM django_migrations')
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for row in cursor.fetchall():
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applied_migrations.append(row)
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applied_migrations = [x for x in applied_migrations if x[0] in app_labels]
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return applied_migrations
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def run_migrations(self, tenant, included_apps):
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if int(self.options.get('verbosity', 1)) >= 1:
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self._notice("=== Running migrate for tenant %s" % tenant.domain_url)
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connection.set_tenant(tenant, include_public=False)
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command = MigrateCommand()
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command.requires_system_checks = False
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command.requires_migrations_checks = False
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command.execute(*self.args, **self.options)
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connection.set_schema_to_public()
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def run_migrations_on_schema(self, schema, included_apps):
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if int(self.options.get('verbosity', 1)) >= 1:
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self._notice("=== Running migrate for schema %s" % schema)
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connection.set_schema(schema, include_public=False)
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command = MigrateCommand()
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command.requires_system_checks = False
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command.requires_migrations_checks = False
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command.execute(*self.args, **self.options)
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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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Command = MigrateSchemasCommand
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