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Custom Column Classes

Create reusable column classes to standardize column formatting across your application. Custom columns encapsulate styling, JavaScript rendering, and export configurations into a single, reusable component.

When to Create Custom Column Classes

Consider creating custom column classes when you:

Have repeated column configurations across multiple DataTables
Want to standardize formatting for specific data types (money, dates, percentages)
Need consistent styling and rendering across different views
Want to centralize export formatting logic

Basic Structure

Custom column classes extend BaseColumn and configure the column in the constructor:

<?php
declare(strict_types=1);
 
namespace App\DataTables\Columns;
 
use Yajra\DataTables\Html\Editor\Columns\BaseColumn;
 
final class MoneyColumn extends BaseColumn
{
    public function __construct(array $attributes = [])
    {
        parent::__construct($attributes);
 
        // Configure the column here
    }
}

Available Methods

addClass()

Add CSS class names to the column:

$this->addClass('text-right');

renderJs()

Set a JavaScript rendering function for the DataTables display:

$this->renderJs('number(",", ".", 2, "", "")');

The function formats numbers with thousand separators and decimal places using DataTables' number() helper.

exportFormat()

Set the Excel number format for exports:

$this->exportFormat('#,##0.00');

Common formats:

#,##0.00 - Number with 2 decimals
$#,##0.00 - Currency
0.00% - Percentage
mm/dd/yyyy - Date

exportRender()

Define a callback to transform values during export:

$this->exportRender(fn (mixed $row, mixed $value): float => round((float) ($value ?? 0), 2));

The callback receives:

$row - The model/row instance
$value - The raw column value

Returns the formatted value for export.

Example: MoneyColumn

This MoneyColumn class configures right-aligned display, JavaScript number formatting, and Excel-compatible export:

<?php
declare(strict_types=1);
 
namespace App\Editor\Columns;
 
final class MoneyColumn extends BaseColumn
{
    public function __construct(array $attributes = [])
    {
        parent::__construct($attributes);
 
        $this->addClass('text-right')
            ->renderJs('number(",", ".", 2, "", "")')
            ->exportFormat('#,##0.00')
            ->exportRender(fn (mixed $row, mixed $value): float => round((float) ($value ?? 0), 2));
    }
}

Usage in DataTable:

use App\DataTables\Columns\MoneyColumn;
 
protected function getColumns(): array
{
    return [
        // ...
        MoneyColumn::make('price', 'orders.price'),
        MoneyColumn::make('total', 'orders.total'),
        // ...
    ];
}

Other Use Cases

PercentageColumn

<?php
declare(strict_types=1);
 
namespace App\DataTables\Columns;
 
final class PercentageColumn extends BaseColumn
{
    public function __construct(array $attributes = [])
    {
        parent::__construct($attributes);
 
        $this->addClass('text-center')
            ->renderJs('function(data) { return (data * 100).toFixed(2) + "%"; }')
            ->exportFormat('0.00%')
            ->exportRender(fn (mixed $row, mixed $value): float => round((float) ($value ?? 0) * 100, 2));
    }
}

PhoneColumn

<?php
declare(strict_types=1);
 
namespace App\DataTables\Columns;
 
final class PhoneColumn extends BaseColumn
{
    public function __construct(array $attributes = [])
    {
        parent::__construct($attributes);
 
        $this->addClass('text-center')
            ->exportFormat('@') // Text format in Excel
            ->exportRender(fn (mixed $row, mixed $value): string => preg_replace('/[^0-9+]/', '', $value ?? ''));
    }
}

Namespace Organization

Place custom column classes in a dedicated namespace:

app/
└── DataTables/
    └── Columns/
        ├── MoneyColumn.php
        ├── PercentageColumn.php
        └── PhoneColumn.php

Or for Editor-specific columns:

app/
└── Editor/
    └── Columns/
        └── MoneyColumn.php

Laravel DataTables