ruby-on-rails - 如何从 ruby​​ on rails Controller 中的 f.select 标签获取选定值

Question

我如何从 Controller 中的 f.select 标签中获取值。这是我的 erb 代码

<td>
  <%= f.text_field :startdate , :id => "from", :placeholder => "Start Date"%>   
</td>    
<td>           
<%= f.select :repetitive_task, options_for_select(["Every Day","Every Week", "Every Month"]), {:prompt => 'None'}, {:id => "select1"} %>
</td>

这是我的 Controller --

def create
  @micropost = current_user.microposts.build(params[:micropost])
  if params[:repetitive_task] == "Every Day" 
     @micropost.targetdate = params[:startdate]
  elsif params[:repetitive_task] == "Every Week" 
     @micropost.targetdate = params[:startdate] + 7
  elsif params[:repetitive_task] == "Every Month"
     @micropost.targetdate = params[:startdate] + 30 
  else
  end      
  if @micropost.save 
    flash[:success] = "Task created!"
    redirect_to root_url
  else             
   render 'static_pages/index'
end

当我点击提交按钮时，没有获取值。请帮忙

Answer 1

<%= f.select :repetitive_task,options_for_select(["Every Day","Every Week", "Every Month"], params[:micropost][:repetitive_task])
, {:prompt => 'None'}, {:id => "select1"} %>

在 options_for_select 中传递第二个 参数以显示所选值。

同样使用 params[:micropost][:repetitive_task] 而不是在 Controller 中使用 params[:repetitive_task]。