如何根据需要设置f.select字段 - rails 5

Question

如何根据需要设置f.select字段？

:required => true事先不工作

<div class="form-group"> 
<label>Bedrooms</label> 
<%= f.select :bed_room, [["1",1], ["2",2], ["3",3], ["4",4], ["5",5], ["6",6], ["7",7], ["8",8], ["9",9], ["10+",10]], prompt: "Select...", class: "form-control", :required => true %> 
</div> 

韩国社交协会

Answer 1

它的工作原理就像一个魅力：

<%= f.select :bed_room, [["1",1], ["2",2], ["3",3], ["4",4], ["5",5], ["6",6], ["7",7], ["8",8], ["9",9], ["10+",10]], { prompt: "Select..." }, { class: "form-control", required: true } %>