RoR - 选择带有include_blank禁用的标签 [英] RoR - Select tag with include_blank disable

问题描述

 < select dir =rtl> 
<选项已禁用>选择一辆汽车< / option> 
< option value =volvo>沃尔沃< / option> 
< option value =saab> Saab< / option> 
< option value =mercedes> Mercedes< / option> 
< option value =audi> Audi< / option> 
< / select> 
  

使用以下代码，我只能得到：

 <％= f.select（：car，xxxxxx，{：include_blank =>'选择汽车'，：disabled =>'选择汽车'} ）％> 
  

=>

 < select id =xxxname =xxx> 
< option value =>选择一辆汽车< / option> 
< option value =volvo>沃尔沃< / option> 
< option value =saab> Saab< / option> 
< option value =mercedes> Mercedes< / option> 
< option value =audi> Audi< / option> 
< / select> 
  

第一个选项未禁用...

 < / p> 
 
 ％= f.select（：car，xxxxxx，{：include_blank =>'选择一辆车'，：disabled => 1}）％> 
  

I want a result like this :

<select dir="rtl">
  <option selected disabled>Choose a car</option>
  <option value="volvo">Volvo</option>
  <option value="saab">Saab</option>
  <option value="mercedes">Mercedes</option>
  <option value="audi">Audi</option>
</select>

With the following code I can only end up with :

<%= f.select(:car, xxxxxx, {:include_blank => 'Choose a car', :disabled => 'Choose a car'}) %>

=>

<select id="xxx" name="xxx">
  <option value="">Choose a car</option>
  <option value="volvo">Volvo</option>
  <option value="saab">Saab</option>
  <option value="mercedes">Mercedes</option>
  <option value="audi">Audi</option>
</select>

The first option is not disabled...

解决方案

I believe what you are looking for is as below:

<%= f.select(:car, xxxxxx, {:include_blank => 'Choose a car', :disabled => 1}) %>

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