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public function Schema::addPrimaryKey in Zircon Profile 8

Same name in this branch
  1. 8 core/lib/Drupal/Core/Database/Schema.php \Drupal\Core\Database\Schema::addPrimaryKey()
  2. 8 core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php \Drupal\Core\Database\Driver\sqlite\Schema::addPrimaryKey()
  3. 8 core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php \Drupal\Core\Database\Driver\pgsql\Schema::addPrimaryKey()
  4. 8 core/lib/Drupal/Core/Database/Driver/mysql/Schema.php \Drupal\Core\Database\Driver\mysql\Schema::addPrimaryKey()
Same name and namespace in other branches
  1. 8.0 core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php \Drupal\Core\Database\Driver\sqlite\Schema::addPrimaryKey()

Add a primary key.

Parameters

$table: The table to be altered.

$fields: Fields for the primary key.

Throws

\Drupal\Core\Database\SchemaObjectDoesNotExistException If the specified table doesn't exist.

\Drupal\Core\Database\SchemaObjectExistsException If the specified table already has a primary key.

Overrides Schema::addPrimaryKey

File

core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php, line 649
Contains \Drupal\Core\Database\Driver\sqlite\Schema.

Class

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

Namespace

Drupal\Core\Database\Driver\sqlite

Code

public function addPrimaryKey($table, $fields) {
  if (!$this
    ->tableExists($table)) {
    throw new SchemaObjectDoesNotExistException(t("Cannot add primary key to table @table: table doesn't exist.", array(
      '@table' => $table,
    )));
  }
  $old_schema = $this
    ->introspectSchema($table);
  $new_schema = $old_schema;
  if (!empty($new_schema['primary key'])) {
    throw new SchemaObjectExistsException(t("Cannot add primary key to table @table: primary key already exists.", array(
      '@table' => $table,
    )));
  }
  $new_schema['primary key'] = $fields;
  $this
    ->alterTable($table, $old_schema, $new_schema);
}