DrupalAPI.de

1. drupal
   1. drupal6 database.mysql-common.inc
   2. drupal6
   3. drupal7 database.inc

Add a unique key.

Übergabeparameter

$ret Array to which query results will be added.

$table The table to be altered.

$name The name of the key.

$fields An array of field names.

Verwandte Themen

Schema API

A Drupal schema definition is an array structure representing one or more tables and their related keys and indexes. A schema is defined by hook_schema(), which usually lives in a modulename.install file.

Code

includes/database.pgsql.inc, line 781

<?php
function db_add_unique_key(&$ret, $table, $name, $fields) {
  $name = '{' . $table . '}_' . $name . '_key';
  $ret[] = update_sql('ALTER TABLE {' . $table . '} ADD CONSTRAINT ' .
    $name . ' UNIQUE (' . implode(',', $fields) . ')');
}
?>