Question

我正在尝试使用button_to帮助程序来远程更新我的数据库，虽然我遇到了一些问题，它似乎没有通过params。

在我看来我正在使用

- @availabilities.each do |a|
    =button_to 'Accept', { :controller => 'availabilities', :action => :update, :id => a.id, :available => true }, :confirm => 'Are you sure?', :method => :post, :remote => true

并在控制器中

# PUT /availabilities/1


# PUT /availabilities/1.json
  def update
    @availability = Availability.find(params[:id])

    respond_to do |format|
      if @availability.update_attributes(params[:availability])
        format.html { redirect_to @availability, :notice => 'Availability was successfully updated.' }
        format.js
      else
        format.html { render :action => "edit" }
        format.js
      end
    end
  end

控制台输出

    Started POST "/availabilities/2/edit?available=true" for 127.0.0.1 at 2013-02-25 21:43:30 +1100

ActionController::RoutingError (No route matches [POST] "/availabilities/2/edit"):

Answer 1

看起来您已经设置了默认路由，该路由将POST与控制器的创建操作匹配，并拒绝任何POST ed数据以更新现有对象。< / p>

在按钮的代码中，将方法更改为PUT。

=button_to 'Accept', { :controller => 'availabilities', :action => :update, :id => a.id, :available => true }, :confirm => 'Are you sure?', :method => :put, :remote => true

评论讨论后的示例代码

在帮助器中，我在视图中显示以下内容。

def toggle_admin(user)
  if user.is_admin?
    button_to "Yes", toggle_admin_path(user), :id => "toggle_admin_#{user.id}", :class => "btn btn-mini toggle-admin", :remote => true
  else
    button_to "No", toggle_admin_path(user), :id => "toggle_admin_#{user.id}", :class => "btn btn-inverse btn-mini toggle-admin", :remote => true
  end
end

我的路线文件将toggle_admin_path指向包含以下内容的用户设置控制器：

def toggle_admin
  @user = User.find(params[:id])
  @account = @user.account
  if @user.is_admin? && @account.admins > 1
    @user.remove_role :admin
  else
    @user.roles << :admin
  end
  if request.xhr?
    render :status => 200, :content_type => 'text/javascript'
  else
    redirect_to edit_account_path
  end
 end

button_to远程更新

1 个答案:

评论讨论后的示例代码