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function db_drop_primary_key in Zircon Profile 8

Same name and namespace in other branches
  1. 8.0 core/includes/database.inc \db_drop_primary_key()

Drops the primary key of a database table.

Parameters

$table: Name of the table to be altered.

Return value

bool TRUE if the primary key was successfully dropped, FALSE if there was no primary key on this table to begin with.

Deprecated

as of Drupal 8.0.x, will be removed in Drupal 9.0.0. Instead, get a database connection injected into your service from the container, get its schema driver, and call dropPrimaryKey() on it. E.g. $injected_database->schema()->dropPrimaryKey($table);

See also

\Drupal\Core\Database\Schema::dropPrimaryKey()

Related topics

Schema API
API to handle database schemas.

File

core/includes/database.inc, line 850
Core systems for the database layer.

Code

function db_drop_primary_key($table) {
  return Database::getConnection()
    ->schema()
    ->dropPrimaryKey($table);
}