Laravel，在选择下拉列表的选项中添加不同的html属性

Laravel, add different html attributes to the options in select drop-down Lists

提问by agaezcode

Is there a way to add HTML attributes to an option in a dropdown select with blade Form::select()?

有没有办法将 HTML 属性添加到带有刀片的下拉选择中的选项Form::select()？

Well, because I need something like this: (add different CSS classes to the optiontags)

好吧，因为我需要这样的东西：（向option标签添加不同的 CSS 类）

<select id="colors" name="colors">
  <option value="1" class="blue">blue</option>
  <option value="2" class="red">red</option>
  <option value="3" class="yellow">yellow</option>
</select>

UPDATE(The CSS class name should not be the same as the text name. The css classes comes from a table in the database.)

UPDATE（CSS 类名称不应与文本名称相同。css 类来自数据库中的一个表。）

<select id="colors" name="colors">
  <option value="1" class="blue">colors-blue</option>
  <option value="2" class="red">something-red</option>
  <option value="3" class="yellow">banana is yellow</option>
</select>

If it was just one CSS class to add to all those options, I could simply do that with jQuery. But I need to add more than one.

如果只有一个 CSS 类可以添加到所有这些选项中，我可以简单地使用 jQuery 来实现。但我需要添加不止一个。

PS: I have the classes name stored in an table from the database.

PS：我将类名存储在数据库的表中。

From the docs, I can't see no light. I've looked to the API also.

从文档中，我看不到任何光。我也看过API。

Update 2(Giving some more details of the code)

更新 2（提供代码的更多详细信息）

// In my create view I have this:
{{ Form::select( 'colored_stuffs', $colorsList, null, ['id'=>'colored_stuffs'] ) }}

// The $colorsList generate an array in the ColorsController@create
public function getCreate()
  {
    $colorsList      = $this->colors->listAll();
  }

// listAll() is defined here is this repository
public function listAll()
  {
      $colors = $this->model->lists('name', 'id', 'color_class');

      return $colors;
  }

// the HTML optput of the create view it's this
<select id="colored_stuffs" name="colored_stuffs">
  <option value="1">Red is used to alert something</option>
  <option value="2">A banana is yellow</option>
  <option value="3">Sorry no color here</option>
</select>

// But I want this
<select id="colored_stuffs" name="colored_stuffs">
  <option value="1" class="red">Red is used to alert something</option>
  <option value="2" class="light-yellow">A banana is yellow</option>
  <option value="3" class="black">Sorry no color here</option>
</select>

采纳答案by Kirk Beard

The default Form::select()helper will does not support what you're requesting, but you can add additional Form helpers using a Macro:

默认Form::select()助手将不支持您的请求，但您可以使用宏添加其他表单助手：

Form::macro('fancySelect', function($name, $list = array(), $selected = null, $options = array())
{
    $selected = $this->getValueAttribute($name, $selected);

    $options['id'] = $this->getIdAttribute($name, $options);

    if ( ! isset($options['name'])) $options['name'] = $name;

    $html = array();

    foreach ($list as $list_el)
    {
        $selectedAttribute = $this->getSelectedValue($list_el['value'], $selected);
        $option_attr = array('value' => e($list_el['value']), 'selected' => $selectedAttribute, 'class' => $list_el['class']);
        $html[] = '<option'.$this->html->attributes($option_attr).'>'.e($list_el['display']).'</option>';
    }

    $options = $this->html->attributes($options);

    $list = implode('', $html);

    return "<select{$options}>{$list}</select>";
});

You can use this new method with the additional classas required:

您可以class根据需要将此新方法与其他方法一起使用：

$options = [
    [
        'value' => 'value-1',
        'display' => 'display-1',
        'class' => 'class-1'
    ],
    [
        'value' => 'value-2',
        'display' => 'display-2',
        'class' => 'class-2'
    ],
    [
        'value' => 'value-3',
        'display' => 'display-3',
        'class' => 'class-3'
    ],
];
echo Form::fancySelect('fancy-select', $options);

回答by Marek Gralikowski

Creating macro is no longer necessary. From LaravelCollective 5.4 you can use 5th argument with individual attributes for all options.

不再需要创建宏。从 LaravelCollective 5.4 开始，您可以将第 5 个参数与所有选项的各个属性一起使用。

{{ Form::select('name', $list, null, ['id' => 'colored_stuffs'],
[1 => ['color' => 'blue'], 2 => ['color' => 'red'], 3 => ['color' => 'yellow']) }}

You can use it to add custom data-* attributes or standard properties like disabled too.

您可以使用它来添加自定义 data-* 属性或禁用的标准属性。

回答by Milind Anantwar

You can iterate over the option and then use their text to add as class:

您可以遍历该选项，然后使用它们的文本添加为​​类：

$('#colors option').each(function(){
  $(this).addClass($(this).text());
});

回答by Sadikhasan

$colors = array("green","blue","red");
echo '<select id="colors" name="colors">';
foreach($colors as $key => $color)
{
  echo '<option value="'.$key+1.'" class="'.$color.'">'.$color.'</option>';
}
echo '</select>';

Update

更新

$('#colors option').each(function(){
  color = $(this).text().split("-")[1];
  $(this).addClass(color);
});

$('#colors option').each(function(){
  color = $(this).text().split("-")[1];
  $(this).addClass(color);
});

.blue{
  color:blue;
  }

.yellow{
  color:yellow;
  }

.red{
  color:red;
  }

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<select id="colors" name="colors">
  <option value="1">colors-blue</option>
  <option value="2">something-red</option>
  <option value="3">banana-yellow</option>
</select>

回答by Salman Kashfy

It's easy, just Make Sure to use class as the fourthparamneter

很简单，只要确保使用 class 作为第四个参数

$yourArray = array(); Use {{Form::select('cat_id', $yourArray,'',['class' => 'form-control'])}}

$yourArray = array(); 使用 {{Form::select('cat_id', $yourArray,'',['class' => 'form-control'])}}