使用JSON对象时,Laravel 5.1 - DRY创建/编辑表单

时间:2016-01-26 23:15:17

标签: php arrays json laravel laravel-5.1

我有一个非常相似的创建表单和编辑表单,实际上它们之间只有一个关键区别,这就是我需要帮助的地方。

我想将表单提取为部分,以便我不会重复自己,但是我有点问题。

我将遗传数组(genetics[])作为JSON对象保存到我的数据库中,它可能如下所示:

{
    "Bell-Albino":"BA",
    "Rainwater-Albino":"na",
    "Tremper-Albino":"na",
    "Murphys-Patternless":"mp",
    "Eclipse":"EC",
    "Marble-Eye":"na",
    "Blizzard":"b",
    "Mack-Snow":"na",
    "Super-Snow":"SS",
    "Gem-Snow":"na",
    "TUG-Snow":"na",
    "Line-Bred-Snow":"na",
    "Enigma":"EN",
    "White-and-Yellow":"WY",
    "Wildtype":"na",
    "Giant":"na"
}

以下是Bell-Albino字段的代码摘录,向您展示如何在create视图中设置其余内容。我必须设置值的键。在提交错误后,Request::old()执行它需要做的事情并保持绝对正确的值。这个工作正常并且没有被破坏:

<label for="genetics">Bell Albino</label>
<?php $options = array('na' => 'N/A', 'BA' => 'Visual', 'ba' => 'Recessive'); ?>
{!! Form::select(
    'genetics[Bell-Albino]', 
    $options, 
    Request::old('genetics[Bell-Albino]'), 
    array('class' => 'form-control')) 
!!}

同样,这里是edit视图中的相同代码。再一次,这个工作正常但它不是DRY,这是我关心的问题。

<label for="genetics">Bell Albino</label>
<?php $options = array('na' => 'N/A', 'BA' => 'Visual', 'ba' => 'Recessive'); ?>
{!! Form::select(
    'genetics[Bell-Albino]', 
    $options, 
    $genetics[0]['Bell-Albino'], 
    array('class'=>'form-control')) 
!!}

为了在页面加载时正确显示/显示/选择遗传数组值,我必须将json_decode我的字段值放入不同的数组中,如上所述form

<?php $genetics[] = json_decode($gecko->genetics, true); ?>

对于那些感兴趣的人,所以你知道解码对象的外观,这是$genetics的转储:

array:1 [▼
  0 => array:16 [▼
    "Bell-Albino" => "BA"
    "Rainwater-Albino" => "na"
    "Tremper-Albino" => "na"
    "Murphys-Patternless" => "mp"
    "Eclipse" => "EC"
    "Marble-Eye" => "na"
    "Blizzard" => "b"
    "Mack-Snow" => "na"
    "Super-Snow" => "SS"
    "Gem-Snow" => "na"
    "TUG-Snow" => "na"
    "Line-Bred-Snow" => "na"
    "Enigma" => "EN"
    "White-and-Yellow" => "WY"
    "Wildtype" => "na"
    "Giant" => "na"
  ]
]

现在从上面的两段代码可以看出,唯一真正的区别在于我正在使用Request::old()。是否有任何方法来实现将此表单与JSON对象一起使用的干燥方式?

1 个答案:

答案 0 :(得分:1)

无论你的&#34;线索&#34;是告诉您它是编辑表单还是创建表单,在ternary statement中使用不同的一行:

<label for="genetics">Bell Albino</label>
<?php $options = array('na' => 'N/A', 'BA' => 'Visual', 'ba' => 'Recessive'); ?>
{!! Form::select(
    'genetics[Bell-Albino]', 
    $options, 
    $isEdit ? $genetics[0]['Bell-Albino'] : Request::old('genetics[Bell-Albino]'), // here!
    array('class' => 'form-control')) 
!!}

例如,这可能在您的&#34;创建&#34;页:

@include('my.form', ['isEdit' => false]);

这可能出现在你的&#34;编辑&#34;页:

@include('my.form', ['isEdit' => true]);

其中my.form包含上述Form::select