Laravel 4 表单模型绑定 Form::select
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Laravel 4 form model binding Form::select
提问by user1543871
OK after reading the documentation: http://four.laravel.com/docs/html#form-model-binding
阅读文档后确定：http: //four.laravel.com/docs/html#form-model-binding
I have a form that looks something like this:
我有一个看起来像这样的表格：
{{ Form::model($profile, array('action' => 'ProfilesController@edit', $profile->user_id, 'files' => true)) }}
{{ Form::select('gender', array('0' => 'What gender are you?', '1' => 'Male', '2' => 'Female'), array('class' => 'span12')) }}
{{ From::close() }}
My problem is: model binding does not work with Form::select, works great with text input. What am I doing wrong??
我的问题是：模型绑定不适用于 Form::select，适用于文本输入。我究竟做错了什么？？
Thanks for your help.
谢谢你的帮助。
回答by kJamesy
I think your 3rd parameter in the select needs to be the selected value:
我认为您在选择中的第三个参数需要是选定的值：
{{ Form::select('gender', array('0' => 'What gender are you?', '1' => 'Male', '2' => 'Female'), $profile->gender) }}
I know it kinda defeats the purpose of model binding but it will actually work. Other issue of course is that now you've lost your class!
我知道它有点违背了模型绑定的目的，但它实际上会起作用。另一个问题当然是现在你已经失去了你的课程！
But if we have a quick look at the api:
但是，如果我们快速浏览一下 api：
select( string $name, array $list = array(), string $selected = null, array $options = array() )
We see that you can pass your options array as the 4th argument.
我们看到您可以将选项数组作为第四个参数传递。
Therefore, the working code is:
因此，工作代码是：
{{ Form::select('gender', array('0' => 'What gender are you?', '1' => 'Male', '2' => 'Female'), $profile->gender, array('class' => 'span12')) }}
{{ Form::select('gender', array('0' => '你是什么性别？', '1' => 'Male', '2' => 'Female'), $profile->gender , array('class' => 'span12')) }}
回答by Cope99
kJamesy is right, the third parameter must be the selected value, but if you set it to null, the form model binding will set default value.
kJamesy 是对的，第三个参数必须是选中的值，但是如果设置为null，表单模型绑定会设置默认值。
{{ Form::model($profile, array('action' => 'ProfilesController@edit', $profile->user_id, 'files' => true)) }}
{{ Form::select('gender', array('0' => 'What gender are you?', '1' => 'Male', '2' => 'Female'), null, array('class' => 'span12')) }}
{{ From::close() }}
