Question

我安装了https://github.com/ryanto/acts_as_votable gem。我试过通过Rails控制台在文档中展示的各种东西。但是我不明白如何在视图中调用这些方法。

def vote
    @post.liked_by current_user
end

这是我的观点。删除和编辑工作很好，但投票没有。什么是正确的方法？

<% if current_user?(post.user) %>
    <%= link_to "delete", post, method: :delete %>,
    <%= link_to "edit", edit_post_path(post)%>
  <% end %>
  <%= link_to "vote", post, method: :vote if logged_in? %>

Answer 1

您需要在routes.rb中进行投票，然后按照构建删除和编辑链接的方式构建链接：方法名称，对象名称，路径：

vote_post_path(post)

method参数不是控制器方法，而是html verb

Answer 2

你添加了路线吗？类似的东西：

resources :answers do 
  member do 
    put "like", to: "answers#upvote"
    put "dislike", to: "answers#downvote"
  end
end

然后在你看来：

<%= link_to "", like_answer_path(answer), method: :put, class: "glyphicon glyphicon-arrow-up" %>

<%= link_to "", dislike_answer_path(answer), method: :put, class: "glyphicon glyphicon-arrow-down" %>

如何在视图中正确调用方法？

2 个答案: