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How to use _execute_migration method in autotest

Best Python code snippet using autotest_python

migration_manager.py

...43            return44        Log.i("Schema version table doesn't exist, creating")45        if len(MigrationManager._migrations) == 0:46            raise Exception("Base migration wasn't found")47        MigrationManager._execute_migration(db, MigrationManager._migrations[0])48    @staticmethod49    def _check_for_failed_migrations(db):50        c = db.cursor()51        c.execute("select id, name from schema_versions where success = 0")52        failed = c.fetchone()53        c.close()54        if failed is not None:55            raise Exception("Database contains a failed migration: {}. {}".format(failed[0], failed[1]))56    @staticmethod57    def _execute_missing_migrations(db):58        existing = [x[0] for x in db.execute("select id from schema_versions")]59        for m in MigrationManager._migrations:60            if m.number not in existing:61                MigrationManager._execute_migration(db, m)62    @staticmethod63    def _load_migration_files():64        migrations = map(lambda x: MigrationFile(x), MigrationManager._migration_file_names)65        migrations = sorted(migrations, key=lambda x: x.number)66        numbers = []67        for m in migrations:68            if m.number in numbers:69                raise Exception(70                    "Error while loading migration {}: Migration with number {} already exists".format(m.name,71                                                                                                       m.number))72        MigrationManager._migrations = migrations73    @staticmethod74    def _execute_migration(db, migration):75        Log.i("Executing migration {}. {}".format(migration.number, migration.name))76        exc = None77        statements = MigrationManager._split_statements(migration.content)78        start = time.time()79        try:80            for statement in statements:81                MigrationManager._execute_statement(db, statement)82        except sqlite3.OperationalError as e:83            Log.e("Error while executing migration {}. {}".format(migration.number, migration.name))84            exc = e85        finally:86            end = time.time()87        execution_time = math.floor((end - start) * 1000)88        MigrationManager._save_migration_status(db, migration, execution_time, exc is None)...

migrator.py

Source: migrator.py

...20            current_schema_version = self.dataschema.current_schema()21            migrations = self.collector.migrations()22            migrations_to_execute = self._select_migrations(migrations, current_schema_version)23            for migration in migrations_to_execute:24                self._execute_migration(migration)25        except MigrationExecutionError as exc:26            self.logger.critical("Error executing migration {}".format(exc.dest))27            raise28    def _select_migrations(self, migrations, current_version):29        return migrations[self._index_for_version(migrations, current_version): None]30    def _index_for_version(self, migrations, version):31        if version is None:32            return 033        for index, migration in enumerate(migrations):34            if version in migration:35                return index + 136        return len(migrations)37    def _execute_migration(self, migration):38        return_value = self.subprocess_module.call(['python', migration])39        target = self.extract_version_from_file(migration)40        if return_value == 0:41            self.dataschema.set_schema_version(target)42            self.logger.info("Migration {} successfully executed".format(target))43        else:44            raise MigrationExecutionError(target)45class TestMigrator(object):46    def __init__(self, database, migrator, logger=logging.getLogger()):47        self.database = database48        self.migrator = migrator49        self.logger = logger50    def test_migrate(self):51        self._execute_database_manipulation_command(self.database.remove_test_database)...

__init__.py

Source: __init__.py

...20        if self.version > Credentials.DESIRED_VERSION:21            LOGGER.fatal('credentials.db file is using an unsupported version of the schema.')22            exit(1)23        for num in range(self.version + 1, Credentials.DESIRED_VERSION + 1):24            self._execute_migration(os.path.join(Credentials.MIGRATIONS_DIR, f'v{num}.sql'))25            self._db.execute(f'PRAGMA user_version={num}')26            self._db.commit()27    @property28    def version(self):29        return self._db.execute('PRAGMA user_version').fetchone()[0]30    def _execute_migration(self, path):31        with open(path) as file:32            script = file.read()33        self._db.executescript(script)34    def save_token(self, alias, id_token):35        self._validate_token(alias, id_token)36        self._db.execute('INSERT OR REPLACE INTO tokens(provider, id_token) VALUES (?, ?)', (alias, id_token))37        self._db.commit()38    def get_token(self, alias):39        result = self._db.execute(40                'SELECT id_token FROM tokens WHERE provider = ?',41                (alias,)42            ).fetchone()43        if result:44            try:...

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