function Schema::findPrimaryKeyColumns

Same name in this branch
  1. 9 core/modules/sqlite/src/Driver/Database/sqlite/Schema.php \Drupal\sqlite\Driver\Database\sqlite\Schema::findPrimaryKeyColumns()
  2. 9 core/modules/pgsql/src/Driver/Database/pgsql/Schema.php \Drupal\pgsql\Driver\Database\pgsql\Schema::findPrimaryKeyColumns()
  3. 9 core/lib/Drupal/Core/Database/Schema.php \Drupal\Core\Database\Schema::findPrimaryKeyColumns()
Same name and namespace in other branches
  1. 11.x core/modules/sqlite/src/Driver/Database/sqlite/Schema.php \Drupal\sqlite\Driver\Database\sqlite\Schema::findPrimaryKeyColumns()
  2. 11.x core/modules/mysql/src/Driver/Database/mysql/Schema.php \Drupal\mysql\Driver\Database\mysql\Schema::findPrimaryKeyColumns()
  3. 11.x core/modules/pgsql/src/Driver/Database/pgsql/Schema.php \Drupal\pgsql\Driver\Database\pgsql\Schema::findPrimaryKeyColumns()
  4. 11.x core/lib/Drupal/Core/Database/Schema.php \Drupal\Core\Database\Schema::findPrimaryKeyColumns()

File

core/modules/mysql/src/Driver/Database/mysql/Schema.php, line 525

Class

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

Namespace

Drupal\mysql\Driver\Database\mysql

Code

protected function findPrimaryKeyColumns($table) {
  if (!$this->tableExists($table)) {
    return FALSE;
  }
  $result = $this->connection
    ->query("SHOW KEYS FROM {" . $table . "} WHERE Key_name = 'PRIMARY'")
    ->fetchAllAssoc('Column_name');
  return array_keys($result);
}

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