function Schema::mapKeyDefinition

Utility method: rename columns in an index definition according to a new mapping.

Parameters

$key_definition: The key definition.

$mapping: The new mapping.

File

core/modules/sqlite/src/Driver/Database/sqlite/Schema.php, line 665

Class

Schema

SQLite implementation of <a href="/api/drupal/core%21lib%21Drupal%21Core%21Database%21Schema.php/class/Schema/9" title="Provides a base implementation for Database Schema." class="local">\Drupal\Core\Database\Schema</a>.

Namespace

Code

protected function mapKeyDefinition(array $key_definition, array $mapping) {
    foreach ($key_definition as &$field) {
        // The key definition can be an array($field, $length).
        if (is_array($field)) {
            $field =& $field[0];
        }
        $mapped_field = array_search($field, $mapping, TRUE);
        if ($mapped_field !== FALSE) {
            $field = $mapped_field;
        }
    }
    return $key_definition;
}