DrupalAPI.de

1. drupal
   1. drupal7

Check if a table exists.

Übergabeparameter

$table The name of the table in drupal (no prefixing).

Rückgabewert

false is no table exists otherwise the actual table name.

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/schema.inc, line 183

<?php
public function tableExists($table) {
  $condition = $this->buildTableNameCondition($this->connection->prefixTables('{' . $table . '}'));
  $condition->compile($this->connection);
  // Normally, we would heartily discourage the use of string
  // concatination for conditionals like this however, we
  // couldn't use db_select() here because it would prefix
  // information_schema.tables and the query would fail.
  // Don't use {} around information_schema table.
  return db_query("SELECT table_name FROM information_schema.tables WHERE " . (string) $condition, $condition->arguments())->fetchField();
}
?>