function db_drop_primary_key in Drupal 8

Same name and namespace in other branches

1. 6 includes/database.mysql-common.inc \db_drop_primary_key()
2. 6 includes/database.pgsql.inc \db_drop_primary_key()
3. 7 includes/database/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.

See also

https://www.drupal.org/node/2993033

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

Related topics

1 call to db_drop_primary_key()

DatabaseLegacyTest::testDbDropPrimaryKey in core/tests/Drupal/KernelTests/Core/Database/DatabaseLegacyTest.php

Tests deprecation of the db_drop_primary_key() function.

File

core/includes/database.inc, line 941

Core systems for the database layer.

Code

function db_drop_primary_key($table) {
  @trigger_error('db_drop_primary_key() is deprecated in drupal:8.0.0. It will be removed from 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. For example, $injected_database->schema()->dropPrimaryKey($table). See https://www.drupal.org/node/2993033', E_USER_DEPRECATED);
  return Database::getConnection()
    ->schema()
    ->dropPrimaryKey($table);
}