在laravel 5.4的多选下拉列表中选择所有选定的ID，并选择收获

问题描述

我有一个称为名称的下拉菜单，用户可以在其中添加一些针对多个名称的信息.如果我在3个指定中添加1个记录，那么我还需要在验证和编辑期间选择这些记录.

I have a dropdown called designation, where a user can add some information against multiple designation. If I add 1 record against 3 designation, then I need to select those during validation and edit time also.

Ex:从[1到10]中选择的ID的{5,7,8}.

Ex: Choosed id's {5,7,8} from [1 to 10].

<select id="forWhom" name="forWhom[]" multiple class="form-control chosen">
<option value="">--- Select ---</option>
@foreach ($desgInfo as $key => $value)
<option value="{{ $key }}" {{ old('forWhom',$info->forWhom) == $key ? 'selected' : ''}} />{{ $value }}</option>
@endforeach
</select>

添加了这些信息之后，我将这些选定的ID存储在逗号分隔符(即5,7,8)中.

After add of those information I store those selected id's in comma(,) separator i.e 5,7,8.

如何在laravel 5.4中进行选择

How can I make select this in laravel 5.4

推荐答案

玩了一段时间之后，我得到了结果.

After playing around a bit, I got the result.

这是代码段.

添加期间

<select id="forWhom" name="forWhom[]" multiple class="form-control chosen">
    <option value="">--- Select ---</option>
    @foreach ($desgInfo as $key => $value)
        <option value="{{ $key }}"
           {{ (collect(old('forWhom'))->contains($key)) ? 'selected':'' }}  />
           {{ $value }}
        </option>
    @endforeach
</select>

在编辑过程中假设您在

<select id="forWhom" name="forWhom[]" multiple class="form-control chosen">
        <option value="">--- Select ---</option>
        @foreach ($desgInfo as $key => $value)
            <option value="{{ $key }}"
               {{ (collect(old('forWhom'))->contains($key)) ? 'selected':'' }}
               {{ (in_array($key,$info->forWhom)) ? 'selected' : ''}}
               />
               {{ $value }}
            </option>
        @endforeach
    </select>

我希望这会对其他人有所帮助.

I hope this will help some one else.

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