function Schema::dropPrimaryKey

Same name in this branch

11.1.x core/lib/Drupal/Core/Database/Schema.php \Drupal\Core\Database\Schema::dropPrimaryKey()
11.1.x core/modules/pgsql/src/Driver/Database/pgsql/Schema.php \Drupal\pgsql\Driver\Database\pgsql\Schema::dropPrimaryKey()
11.1.x core/modules/mysql/src/Driver/Database/mysql/Schema.php \Drupal\mysql\Driver\Database\mysql\Schema::dropPrimaryKey()

Overrides Schema::dropPrimaryKey

File

core/modules/sqlite/src/Driver/Database/sqlite/Schema.php, line 768

Class

Schema: SQLite implementation of \Drupal\Core\Database\Schema.

Namespace

Drupal\sqlite\Driver\Database\sqlite

Code

public function dropPrimaryKey($table) {
    $old_schema = $this->introspectSchema($table);
    $new_schema = $old_schema;
    if (empty($new_schema['primary key'])) {
        return FALSE;
    }
    unset($new_schema['primary key']);
    $this->alterTable($table, $old_schema, $new_schema);
    return TRUE;
}