Check if a table exists.

Parameters

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

Return value

TRUE if the given table exists, otherwise FALSE.

1 call to DatabaseSchema::tableExists()

DatabaseSchema::createTable in includes/database/schema.inc

Create a new table from a Drupal table definition.

3 methods override DatabaseSchema::tableExists()

DatabaseSchema_mysql::tableExists in includes/database/mysql/schema.inc

Check if a table exists.

DatabaseSchema_pgsql::tableExists in includes/database/pgsql/schema.inc

Check if a table exists.

DatabaseSchema_sqlite::tableExists in includes/database/sqlite/schema.inc

Check if a table exists.

File

includes/database/schema.inc, line 321

Class

DatabaseSchema

Base class for database schema definitions.

Code

public function tableExists($table) {
    $condition = $this->buildTableNameCondition($table);
    $condition->compile($this->connection, $this);
    // Normally, we would heartily discourage the use of string
    // concatenation 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.tables table.
    return (bool) $this->connection
        ->query("SELECT 1 FROM information_schema.tables WHERE " . (string) $condition, $condition->arguments())
        ->fetchField();
}

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