laravel 多选编辑表单选定值
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Multiple select edit form selected values
提问by maunoxyd
Struggling with an issue in Laravel 4, in a "contact" model edit form, I can get all fields current values except those from the multiple select which is to establish a relation with another model "company". It's a many-to-many relationship. I'm getting the list of companies, but none are selected even if a relation exists.
与 Laravel 4 中的一个问题作斗争，在“联系”模型编辑表单中，我可以获得所有字段的当前值，除了来自与另一个模型“公司”建立关系的多重选择的那些。这是一个多对多的关系。我正在获取公司列表，但即使存在关系，也不会选择任何公司。
Here's my edit form:
这是我的编辑表格：
{{ Form::model($contact, array('route' => array('crm.contacts.update', $contact->id), 'id' => 'edit-contact')) }}
<div class="control-group">
{{ Form::label('first_name', 'First Name', array( 'class' => 'control-label' )) }}
{{ Form::text('first_name') }}
</div>
<div class="control-group">
{{ Form::label('last_name', 'Last Name', array( 'class' => 'control-label' )) }}
{{ Form::text('last_name') }}
</div>
<div class="control-group">
{{ Form::label('email', 'Company Email', array( 'class' => 'control-label' )) }}
{{ Form::text('email') }}
</div>
<div class="control-group">
{{ Form::label('company_ids', 'Company', array( 'class' => 'control-label' )) }}
{{ Form::select('company_ids[]', $companies, array('',''), array('multiple'), Input::old('company_ids[]')) }}
</div>
{{ Form::close() }}
My controller:
我的控制器：
public function edit($id)
{
$contact = Contact::find($id);
$company_options = Company::lists('name', 'id');
return View::make('crm.contacts.edit')
->with('contact', $contact)
->with('companies', $company_options);;
}
Any ideas on how to have the multiple select field pre-filled with existing values?
关于如何使用现有值预填充多选字段的任何想法？
Thanks
谢谢
回答by Ryun
Laravel does notsupport multi-select fields by default you need to use a Form::macro
Laravel默认不支持多选字段，需要使用 Form::macro
The example below by @Itrulia was correct, you can simply do:
@Itrulia 下面的例子是正确的，你可以简单地做：
$users = array(
1 => 'joe',
2 => 'bob',
3 => 'john',
4 => 'doe'
);
echo Form::select('members[]', $users, array(1,2), array('multiple' => true));
回答by Itrulia
Laravel does support multiselect by default.
Laravel 默认支持多选。
{{ Form::select('members[]', $users, null, array('multiple' => true)); }}
