DatabaseSchema_sqlite::addPrimaryKey
public function DatabaseSchema_sqlite::addPrimaryKey
public DatabaseSchema_sqlite::addPrimaryKey($table, $fields)
Add a primary key.
Parameters
$table: The table to be altered.
$fields: Fields for the primary key.
Throws
DatabaseSchemaObjectDoesNotExistException If the specified table doesn't exist.
DatabaseSchemaObjectExistsException If the specified table already has a primary key.
Overrides DatabaseSchema::addPrimaryKey
File
- includes/database/sqlite/schema.inc, line 618
- Database schema code for SQLite databases.
Class
Code
public function addPrimaryKey($table, $fields) { if (!$this->tableExists($table)) { throw new DatabaseSchemaObjectDoesNotExistException(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 DatabaseSchemaObjectExistsException(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); }
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