CodeIgniter4 DataTables Usage - Searchable Columns

Table Customers

only "selected" column will be searchable on setSearchableColumns code. See Source Code.

Cust. No	Name	Phone	City	Country	Postal Code

Note

This sample database is downloaded from : https://www.mysqltutorial.org/mysql-sample-database.aspx/

Controller

setSearchableColumns() parameter can be : Array or String with separated comma. You can also set columns are not displayed.
on example code. 'state' column is not on select query (will not displayed) but it will querying for search
also available addSearchableColumns() parameter also : Array or String

                    
use \Hermawan\DataTables\DataTable;

public function custom_searchable()
{
    $db = db_connect();
    $builder = $db->table('customers')->select('customerNumber, customerName, phone, city, country, postalCode');
    
    return DataTable::of($builder)
    ->setSearchableColumns(['customerName', 'country', 'state'])
    //->addSearchableColumns('city') //city added 
    ->toJson();
}

Javascript

                    
$(document).ready(function() {
    $('#table').DataTable({
        processing: true,
        serverSide: true,
        ajax: '/ajax-datatable/custom-searchable'
    });
});

AJAX Response :

                    
{
    "draw": "1",
    "recordsTotal": 122,
    "recordsFiltered": 122,
    "data": [
        [
            "103",
            "Atelier graphique",
            "40.32.2555",
            "Nantes",
            "France",
            "44000"
        ],
        [
            "112",
            "Signal Gift Stores",
            "7025551838",
            "Las Vegas",
            "USA",
            "83030"
        ],
        [
            "114",
            "Australian Collectors, Co.",
            "03 9520 4555",
            "Melbourne",
            "Australia",
            "3004"
        ],
        [
            "119",
            "La Rochelle Gifts",
            "40.67.8555",
            "Nantes",
            "France",
            "44000"
        ],
        [
            "121",
            "Baane Mini Imports",
            "07-98 9555",
            "Stavern",
            "Norway",
            "4110"
        ],
        [
            "124",
            "Mini Gifts Distributors Ltd.",
            "4155551450",
            "San Rafael",
            "USA",
            "97562"
        ],
        [
            "125",
            "Havel & Zbyszek Co",
            "(26) 642-7555",
            "Warszawa",
            "Poland",
            "01-012"
        ],
        [
            "128",
            "Blauer See Auto, Co.",
            "+49 69 66 90 2555",
            "Frankfurt",
            "Germany",
            "60528"
        ],
        [
            "129",
            "Mini Wheels Co.",
            "6505555787",
            "San Francisco",
            "USA",
            "94217"
        ],
        [
            "131",
            "Land of Toys Inc.",
            "2125557818",
            "NYC",
            "USA",
            "10022"
        ]
    ]
}