public function DataTable::addIndex in Data 7

Same name and namespace in other branches

1. 6 includes/DataTable.inc \DataTable::addIndex()

Add an index to table.

@todo: support more than one field.

1 call to DataTable::addIndex()

DataTable::changeIndex in includes/DataTable.inc

Change indexes of a table.

File

includes/DataTable.inc, line 291

Contains class definition for DataTable.

Class

DataTable

Manages data access and manipulation for a single data table. Use data_create_table() or data_get_table() to instantiate an object from this class.

Code

public function addIndex($field) {
  $schema = $this->table_schema;
  if ($schema['fields'][$field]) {
    $index = data_get_index_definition($field, $schema['fields'][$field]);
    try {
      db_add_index($this->name, $field, $index);
    } catch (DatabaseSchemaObjectExistsException $e) {
      throw new DataException(t('Error adding index.'));
    }
    $schema['indexes'][$field] = $index;
    $this
      ->update(array(
      'table_schema' => $schema,
    ));
    drupal_get_schema($this->name, TRUE);
  }
}