protected function DatabaseSchema_mysql::createKeysSql

7.x schema.inc protected DatabaseSchema_mysql::createKeysSql($spec)

3 calls to DatabaseSchema_mysql::createKeysSql()

DatabaseSchema_mysql::addField in drupal-7.x/includes/database/mysql/schema.inc: Add a new field to a table.
DatabaseSchema_mysql::changeField in drupal-7.x/includes/database/mysql/schema.inc: Change a field definition.
DatabaseSchema_mysql::createTableSql in drupal-7.x/includes/database/mysql/schema.inc: Generate SQL to create a new table from a Drupal schema definition.

File

drupal-7.x/includes/database/mysql/schema.inc, line 256: Database schema code for MySQL database servers.

Class

DatabaseSchema_mysql

Code

protected function createKeysSql($spec) {
  $keys = array();

  if (!empty($spec['primary key'])) {
    $keys[] = 'PRIMARY KEY (' . $this->createKeysSqlHelper($spec['primary key']) . ')';
  }
  if (!empty($spec['unique keys'])) {
    foreach ($spec['unique keys'] as $key => $fields) {
      $keys[] = 'UNIQUE KEY `' . $key . '` (' . $this->createKeysSqlHelper($fields) . ')';
    }
  }
  if (!empty($spec['indexes'])) {
    foreach ($spec['indexes'] as $index => $fields) {
      $keys[] = 'INDEX `' . $index . '` (' . $this->createKeysSqlHelper($fields) . ')';
    }
  }

  return $keys;
}