WP_list_table bulk_action get edit and delete

So, I found the problem.

First of all, I was not selecting the right ID’s on my checkbox or buttons, so I changed to code to do so:

function column_name($item){
    $item_json = json_decode(json_encode($item), true);
    $actions = array(
        'edit' => sprintf('<a href="https://wordpress.stackexchange.com/questions/265648/?page=%s&action=%s&id=%s">Edit</a>', $_REQUEST['page'], 'edit', $item_json['id']),
        'delete' => sprintf('<a href="https://wordpress.stackexchange.com/questions/265648/?page=%s&action=%s&id=%s">Delete</a>', $_REQUEST['page'], 'delete', $item_json['id']),
    );
    return '<em>' . sprintf('%s %s', $item_json['name'], $this->row_actions($actions)) . '</em>';
}

Notice here that I have $items now who will get all the data needed. I will do an JSON decode and encode to turn it into an array and after that I can call the JSON array id or name in the sprinttf() where I need it.

Same for the checkboxes (without the JSON):

function column_cb($item) {
        return sprintf(
            '<input type="checkbox" name="id[]" value="%s" />',
            $item->id
        );
    }

After that i added this to my case ‘delete’ :

case 'delete':
                global $wpdb;
                $table_name = $wpdb->prefix . 'designitcountries';

                if ('delete' === $this->current_action()) {
                    $ids = isset($_REQUEST['id']) ? $_REQUEST['id'] : array();
                    if (is_array($ids)) $ids = implode(',', $ids);

                    if (!empty($ids)) {
                        $wpdb->query("DELETE FROM $table_name WHERE id IN($ids)");
                    }
                }

                wp_die( 'You have deleted this succesfully' );
                break;

Now I have a working method to delete from the buttons and from the checkboxes.