function Schema::indexExists

Same name in this branch

11.1.x core/lib/Drupal/Core/Database/Schema.php \Drupal\Core\Database\Schema::indexExists()
11.1.x core/modules/pgsql/src/Driver/Database/pgsql/Schema.php \Drupal\pgsql\Driver\Database\pgsql\Schema::indexExists()
11.1.x core/modules/sqlite/src/Driver/Database/sqlite/Schema.php \Drupal\sqlite\Driver\Database\sqlite\Schema::indexExists()

Overrides Schema::indexExists

7 calls to Schema::indexExists()

Schema::addField in core/modules/mysql/src/Driver/Database/mysql/Schema.php: Add a new field to a table.
Schema::addIndex in core/modules/mysql/src/Driver/Database/mysql/Schema.php: Add an index.
Schema::addPrimaryKey in core/modules/mysql/src/Driver/Database/mysql/Schema.php: Add a primary key.
Schema::addUniqueKey in core/modules/mysql/src/Driver/Database/mysql/Schema.php: Add a unique key.
Schema::dropIndex in core/modules/mysql/src/Driver/Database/mysql/Schema.php: Drop an index.

... See full list

File

core/modules/mysql/src/Driver/Database/mysql/Schema.php, line 498

Class

Schema: MySQL implementation of \Drupal\Core\Database\Schema.

Namespace

Drupal\mysql\Driver\Database\mysql

Code

public function indexExists($table, $name) {
    // Returns one row for each column in the index. Result is string or FALSE.
    // Details at http://dev.mysql.com/doc/refman/5.0/en/show-index.html
    $row = $this->connection
        ->query('SHOW INDEX FROM {' . $table . '} WHERE key_name = ' . $this->connection
        ->quote($name))
        ->fetchAssoc();
    return isset($row['Key_name']);
}