Laravel Simple Forms

Controller.php

//...
/**
     * Generate a URL to a controller action.
     *
     * @param  string  $name
     * @param  array   $parameters
     * @param  bool    $absolute
     * @return string
     */
    public function action($name, $parameters = [], $absolute = true)
    {
        if (strpos($name, '@') == false) {
            $name = static::class.'@'.ltrim($name, '@');
        }

        return action($name, $parameters, $absolute);
    }
//...

form.blade.php

<form class="form-horizontal" role="form" method="POST" action="{{ $form->url() }}">
  {{ csrf_field() }}
  {{ method_field($form->method()) }}

  <div class="form-group{{ $errors->has('name') ? ' has-error' : '' }}">
      <label for="name" class="col-md-4 control-label">{{ trans('validation.attributes.name') }}</label>

      <div class="col-md-6">
          <input id="name" type="text" class="form-control" name="name" value="{{ $form->value('name') }}">

          @if ($errors->has('name'))
              <span class="help-block">
                  <strong>{{ $errors->first('name') }}</strong>
              </span>
          @endif
      </div>
  </div>

  <div class="form-group">
      <label for="login" class="col-md-4 control-label">{{ trans('validation.attributes.login') }}</label>

      <div class="col-md-6">
          <p class="form-control-static" id="login">{{ $form->value('login') }}</p>
      </div>
  </div>

  <div class="form-group">
      <div class="col-md-6 col-md-offset-4">
          <button type="submit" class="btn btn-primary">
              <i class="fa fa-btn fa-save"></i> {{ trans('layout.buttons.save') }}
          </button>
          <a href="{{ url()->previous() }}" class="btn btn-default">{{ trans('layout.buttons.back') }}</a>
      </div>
  </div>
</form>

Form.php

<?php

namespace TS\Backend\UX;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Session\Store;
use Illuminate\Support\Arr;
use Illuminate\Support\Fluent;

class Form extends Fluent
{
    /**
     * @var \Illuminate\Session\Store
     */
    protected $session = null;

    public function __construct($attributes)
    {
        parent::__construct($attributes);
        $this->session = app(Store::class);
    }

    public function url()
    {
        return $this->get('url');
    }
    
    public function method()
    {
        return $this->get('method', 'POST');
    }

    public function data(array $data = null)
    {
        if (is_null($data)) {
            return $this->get('data', []);
        }

        $this->attributes['data'] = $data;
        return $this;
    }

    /**
     * @param Model|null $model
     * @return $this|Model|null
     */
    public function model(Model $model = null)
    {
        if (is_null($model)) {
            return $this->get('model');
        }

        $this->attributes['model'] = $model;
        return $this;
    }

    public function value($key, $default = null)
    {
        if ($this->session->hasOldInput($key)) {
            return $this->session->getOldInput($key);
        }

        if ($model = $this->model()) {
            return data_get($model, $key);
        }

        return Arr::get($this->data(), $key);
    }

    /**
     * Transform key from array to dot syntax.
     *
     * @param  string  $key
     * @return string
     */
    protected function transformKey($key)
    {
        return str_replace(array('.', '[]', '[', ']'), array('_', '', '.', ''), $key);
    }
}

SomeController.php

//...
public function edit(Device $device)
    {
        $this->authorize('edit', $device);

        $data = [
            'name' => $device->name,
            'login' => $device->identifier->login,
        ];

        $form = (new Form([
            'url' => $this->action('update', [$device->getRouteKey()]),
            'method' => 'PUT',
        ]))->data($data);

        return view('devices.form', [
            'form' => $form,
        ]);
    }
//...