: str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated in
namespace Yoast\WP\SEO\Config\Migrations;
use Yoast\WP\Lib\Migrations\Migration;
* Class AddColumnsToIndexables.
class AddColumnsToIndexables extends Migration {
* The plugin this migration belongs to.
public static $plugin = 'free';
$tables = $this->get_tables();
$blog_id = \get_current_blog_id();
foreach ( $tables as $table ) {
$indexable_table = $this->get_indexable_table();
$this->add_column( $indexable_table, 'language', 'string', $attr_limit_32 );
$this->add_column( $indexable_table, 'region', 'string', $attr_limit_32 );
$this->add_column( $indexable_table, 'schema_page_type', 'string', $attr_limit_64 );
$this->add_column( $indexable_table, 'schema_article_type', 'string', $attr_limit_64 );
$tables = $this->get_tables();
foreach ( $tables as $table ) {
$this->remove_column( $table, 'blog_id' );
$indexable_table = $this->get_indexable_table();
$this->remove_column( $indexable_table, 'language' );
$this->remove_column( $indexable_table, 'region' );
$this->remove_column( $indexable_table, 'schema_page_type' );
$this->remove_column( $indexable_table, 'schema_article_type' );
* Retrieves the Indexable table.
* @return string The Indexable table name.
protected function get_indexable_table() {
return Model::get_table_name( 'Indexable' );
* Retrieves the table names to use.
* @return string[] The table names to use.
protected function get_tables() {
$this->get_indexable_table(),
Model::get_table_name( 'Indexable_Hierarchy' ),
Model::get_table_name( 'Primary_Term' ),