Question

我有一个select_tag来从列表中选择项目，这里是代码：

<%= select_tag "Drinks", options_for_select([ "Water", "Soda", "Beer" ], "Water") %>

在提交“水”之后，它不会显示在“饮料”部分的索引和显示视图上。

我做错了什么？

控制器创建和更新方法

def create
    @facture = Facture.new(params[:facture])

    respond_to do |format|
      if @facture.save
        format.html { redirect_to @facture, :notice => 'Facture was successfully created.' }
        format.json { render :json => @facture, :status => :created, :location => @facture }
      else
        format.html { render :action => "new" }
        format.json { render :json => @facture.errors, :status => :unprocessable_entity }
      end
    end
  end


def update
    @facture = Facture.find(params[:id])

    respond_to do |format|
      if @facture.update_attributes(params[:facture])
        format.html { redirect_to @facture, :notice => 'Facture was successfully updated.' }
        format.json { head :ok }
      else
        format.html { render :action => "edit" }
        format.json { render :json => @facture.errors, :status => :unprocessable_entity }
      end
    end
  end

Answer 1

你应该用这个：

select_tag "facture[drinks]", options_for_select([ "Water", "Soda", "Beer" ], "Water")

create方法使用params [：facture]中发送的值，使用“facture [drinks]”将其包含为params [：facture] [：drinks]。

Answer 2

以下是我的表现（感谢miligraf）：

1-让控制器中的代码完整无缺

2-更改views / factures / _form.html.erb中的代码：

<强>前

<%= select_tag "facture", options_for_select([ "Water", "Soda", "Beer" ], "Water") %>

<强>后

<%= select_tag "facture[drinks]", options_for_select([ "Water", "Soda", "Beer" ], "Water") %>

在show和index操作中Rails select_tag问题

2 个答案: