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Laravel-adminのformをgrid対応する

Last updated at Posted at 2018-06-29

(2019-10-21追記)
ver1.7.6より"Form Layout"が実装されました。
https://laravel-admin.org/docs/#/en/model-form-layout

(2019-08-14追記)
Laravel-admin v1.7.3 (2019-07-22)では、こちらの方法はうまくいきません。

概要

$form->rowがいまいち思ったとおりに機能しないので、自力で実装した

出来上がりはこんな感じ

スクリーンショット 2018-06-29 9.11.00.png

TabやHasManyの中につっこんでもきちんと動作します。
スクリーンショット 2018-06-29 9.45.06.png

実装方法

1.App/Admin/Extensionsに下記ファイルを配置

MultipleColumn.php

<?php

namespace App\Admin\Extensions;

use Encore\Admin\Form;
use Encore\Admin\Form\Field;

class MultipleColumn extends Field
{
	protected $label;

	/**
	 * Callback for add field to current row.s.
	 *
	 * @var \Closure
	 */
	protected $callback;

	/**
	 * Parent form.
	 *
	 * @var Form
	 */
	protected $form;

	/**
	 * Fields in this row.
	 *
	 * @var array
	 */
	protected $fields = [];

	/**
	 * Default field width for appended field.
	 *
	 * @var int
	 */
	protected $defaultFieldWidth = 12;

	protected $view = 'form.multiplecolumn';

	public function __construct($label, $arguments = [])
	{
		$this->label = $label;
		$this->callback = $arguments[0];
		$this->form = $arguments[1];
		call_user_func($this->callback, $this);
	}

	/**
	 * Set width for a incomming field.
	 *
	 * @param int $width
	 *
	 * @return $this
	 */
	public function width($width = 12)
	{
		$this->defaultFieldWidth = $width;

		return $this;
	}

	public function render()
	{
		return parent::render($this->view)->with([
			'fields' => $this->fields,
			'label' => $this->label,
		]);
	}

	/**
	 * Add field.
	 *
	 * @param string $method
	 * @param array  $arguments
	 *
	 * @return Field|void
	 */
	public function __call($method, $arguments)
	{
		$field = $this->form->__call($method, $arguments);

		$this->fields[] = [
			'width'   => $this->defaultFieldWidth,
			'element' => $field,
		];

		return $field;
	}
}

2.bootstrap.phpに下記追加

use App\Admin\Extensions\MultipleColumn;

Encore\Admin\Form::extend('multipleColumn', MultipleColumn::class);

3.resources/views/formに下記ファイルを配置

multiplecolumn.blade.php
@php
    $rand = mt_rand();
@endphp
<div class="form-group  multiColumn{{ $rand }}">
        <label class="col-sm-2 control-label">{{$label}}</label>
        @foreach($fields as $field)
            <div class="col-sm-{{ $field['width'] }}">
                {!! $field['element']->render() !!}
            </div>
        @endforeach
</div>
<script>
    for (var i=0; i<{{ count($fields) }}; i++) {
        $('.multiColumn{{ $rand }} ').prev().remove();
        $('.multiColumn{{ $rand }} .form-group').css('margin-bottom','initial');
    }
</script>

All set!!

使い方

$form->multipleColumn('郵便番号',function ($column){
  $column->width(2)
         ->text('postal_code','')
         ->rules('digits:7', ['digits' => '7桁の数字を入力してください'])
         ->placeholder('郵便番号')
         ->setWidth(12,0);
  $column->width(5)
         ->select('prefucture','都道府県')
         ->placeholder('都道府県')
         ->options(config('pref'))
         ->setWidth(3,2);
},$form);

$form->multipleColumn('住所',function ($column){
  $column->width(4)
         ->text('address1','')
         ->placeholder('住所1')
       ->setWidth(12,0);
  $column->width(4)
         ->text('address2','')
         ->placeholder('住所2(マンション名・ビル名など)')
         ->setWidth(12,0);

},$form);

以上です。
form-groupが二重で生成されるのをjsで無理やり消してるところがミソ
(そもそも二重生成しないようになんとかしたい)

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