Question

我在UsersController中编写了一个“跟随”方法

def start_following
    @user = current_user
    @user_to_follow = User.find(params[:id])
    unless @user_to_follow == @user
        @follow_link = @user.follow_link.create(:follow_you_id => @user_to_follow.id, :user_id => @user.id)
        @user.save
        flash[:start_following] = "You started following" + @user_to_follow.name 
    else
        flash[:cant_follow] = "You cannot follow yourself"
    end
end

非常简单。在视图中，我有

<%= link_to 'Follow', follow_user_path(@user) %>

在路线中，

resources :users do
 member do
    get 'follow' => "users#start_following", :as => 'follow'

当我点击该链接时，它会抱怨：Missing template users/start_following

那么，如何让它在动作后保持在同一页面？我想留下的视图页面是要遵循的用户的显示视图。例如：users / {user_id}。简单地重定向不是一个解决方案？我认为添加redirect_to {somewhere}会消除错误，但事实并非如此。

Answer 1

我会重定向到相关用户。如果您使用标准的资源丰富的路线，那么您可以做

redirect_to(@user_to_follow)

除此之外，通常认为让GET请求进行更改是不好的做法 - 人们通常会使用put / patch / post / delete请求。如果浏览器没有用户实际点击链接，您可能会在预先获取链接时遇到问题。

Answer 2

尝试：

redirect_to :back, :notice => "successfully followed someone..."

Answer 3

是redirect_to解决了您的问题，我怀疑您忘记将其添加到unless的两个分支

代码如下所示：

def start_following
    @user = current_user
    @user_to_follow = User.find(params[:id])
    unless @user_to_follow == @user
        @follow_link = @user.follow_link.create(:follow_you_id => @user_to_follow.id, :user_id => @user.id)
        @user.save
        flash[:start_following] = "You started following" + @user_to_follow.name 
    else
        flash[:cant_follow] = "You cannot follow yourself"
    end
    redirect_to @user_to_follow
end

行动中缺少模板

3 个答案: