Reply To: Search form with meta_field

• permanyer

• June 16, 2022 at 5:30 am

I had to replace

$query->set( 'meta_query', array(
                    'key'       => 'isbn',
                    'value'     => $isbn
                ) );

with

$query->set( 'meta_query', array(
                                                array(
                                                    'key'       => 'isbn',
                                                    'value'     => $isbn
                                                )
                                            ) 
                        );

That is, nesting the array into another array as in docs