Adding Custom FormFields

You can easily add a new FormField to Laravel Admin Panel. In the example below we will add a number form field (which is already included by default in Laravel Admin Panel).
First we create a new class in our project (it doesn't matter where it is placed) called NumberFormField

<?php

namespace App\FormFields;

use LaravelAdminPanel\FormFields\AbstractHandler;

class NumberFormField extends AbstractHandler
{
    protected $codename = 'number';

    public function createContent($row, $dataType, $dataTypeContent, $options)
    {
        return view('formfields.number', [
            'row' => $row,
            'options' => $options,
            'dataType' => $dataType,
            'dataTypeContent' => $dataTypeContent
        ]);
    }
}

The codename variable is used in the dropdown you see in the CRUD builder. In the createContent method we are returning the view that is used to display our form field.

Next, we will create the view specified above.

<input type="number"
       class="form-control"
       name="{{ $row->field }}"
       data-name="{{ $row->display_name }}"
       type="number"
       @if($row->required == 1) required @endif
			 step="any"
       placeholder="{{ isset($options->placeholder)? old($row->field, $options->placeholder): $row->display_name }}"
       value="@if(isset($dataTypeContent->{$row->field})){{ old($row->field, $dataTypeContent->{$row->field}) }}@else{{old($row->field)}}@endif">

In the view we can add whatever logic we want.

When we are done with our view, we will tell admin panel that we have a new form field. We will do this in a service provider (in the example below we use the AppServiceProvider.

<?php

namespace App\Providers;

use LaravelAdminPanel\Facades\Admin;
use App\FormFields\NumberFormField;
use Illuminate\Support\ServiceProvider;

class AppServiceProvider extends ServiceProvider
{
    //..
    
    public function register()
    {
        Admin::addFormField(NumberFormField::class);
    }
}