Question

我是rails的新手，需要一些指导。我确信我误解了一些明显的东西。

我想要留下评论的人的用户名显示在视图页面上。我有一部分内容通过特定对象的评论集合，例如学校。我无法弄清楚如何将该用户变量传递给partial，以便我可以显示注释的登录名。我的评论模型是多态的，我很确定这会让这更复杂。

以下是模型：

class Comment < ActiveRecord::Base
belongs_to :commentable, :polymorphic => true
has_many :comments, :through => :schools

class School < ActiveRecord::Base
belongs_to :installation
belongs_to :neighborhood
has_many :comments, :as => :commentable

class User < ActiveRecord::Base
has_many :users, :through => :schools

学校的管理员：

def show
  @installation = Installation.find(params[:installation_id])
  @school = School.find(params[:id])
  @neighborhood = @school.neighborhood
  @comment = @school.comments
respond_to do |format|
  format.html # show.html.erb
  format.xml  { render :xml => @school }
  end
end

评论部分：

<div class="box-one">
<img src="/images/comment_top.png" alt="" />
<div class="inside">
    <p><span class="stars"><%= display_stars(comment.stars) %></span><br />
<%= comment.content %></p>  
</div>
<img src="/images/comment_bottom.png" alt="" />
</div>

学校观点：

<%= render :partial => "shared/comment", :collection => @comment %>

Answer 1

我认为您的模型可能存在一些问题，但您使用locals将参数传递给部分。

<%= render :partial => "shared/comment", :locals => { :user => your_user } %>

然后在部分内部，您可以访问用户变量。

<p><span class="stars"><%= display_stars(comment.stars) %></span><br />
<%= comment.content %><br />
by <%= user %></p>

Answer 2

例如来自我

def show 
@school = School.find_by_id_and_user_id(params[:id],
params[:user_id],:include => [:user, [:comments => :user]])
end

class Comment < ActiveRecord::Base
  belongs_to :school, :counter_cache => true
  belongs_to :user
end

class School < ActiveRecord::Base
  belongs_to :user, :counter_cache => true
  has_many :comments

  def after_save
   self.user.update_attribute(:last_activity, "bla bla bla")
   self.user.update_attribute(:last_activity_at, Time.now)
  end
end

 class User
   has_many :school or has_one
   has_many :comments
 end

<div class="box-one">
<img src="/images/comment_top.png" alt="" />
<div class="inside">
        <% @schools.comments.each do |comment| -%>
        <%= comment.created_at.to_s(:short) %>  
        <p><span class="stars"><%= <%= comment.user.stars %> said: ## or<%= comment.user.username %> said:##</p> %></span><br />
<%= comment.content %></p>  

</div>
<img src="/images/comment_bottom.png" alt="" />
</div>

<%= render :partial => "shared/comment"%>

部分具有多个变量

2 个答案: