You have a list with a linked table? For example in the AdminController you display Customer, right? What if you want to separate first names and last names ; and then perform a simple search?
It will trigger an error! You have to use the
filter_key parameter. Here’s how.
Let’s say you have
LEFT JOIN category_lang as cl [...] LEFT JOIN customers as c [...]
You can then use
$this->fields_list = [ 'category' => ['title' => 'Category', 'filter_key' => 'cl!name'], // mind the ! as a separator 'customer' => ['title' => 'Customer', 'filter_key' => 'c!firstname'], ]