没有方法错误 - 从表中获取名称

Question

我有一个代理和一个agent_review模型，我试图创建一个页面，所有评论都可以在同一页面上访问。我有一个问题，要拔出正在审核的代理人和审核人的姓名。

ERB：

<div class="mega-container"> 
    <%= render 'matrix/listings/matrix_navigation' %> 
    <div class="standard-page-header"> 
     <h1>Agent Reviews</h1><br> 
     <hr> 
    </div> 
    <div class="text-center"> 
     <div class="container feedback-index"> 
     <% @agent_reviews.each do |agent_review| %> 
      <div class="row feedback-strip"> 
      <h3>Agent Name: <%= agent_review.agent.name %></h3> 
      <p>Review: <%= agent_review.comment %></p> 
      <p>Star Rating: <%= agent_review.rating %> of 5</p> 
      <p>Reviewer: <%= agent_review.reviewer.name %></p> 
      <p>Submitted: <%= agent_review.created_at.strftime('%D @ %l:%M%p') %></p> 
      </div> 
     <% end %> 
     </div> 
    </div> 
    </div> 

架构：

create_table "agent_reviews", force: :cascade do |t| 
    t.integer "agent_id" 
    t.integer "reviewer_id" 
    t.text  "comment" 
    t.integer "rating" 
    t.datetime "created_at", null: false 
    t.datetime "updated_at", null: false 
end 

控制器：

def all_reviews 
    @agent_reviews = AgentReview.all 
end 

型号：

class Agent < ActiveRecord::Base 
    has_many :agent_reviews 
end 

class AgentReview < ActiveRecord::Base 
    belongs_to :agent, foreign_key: 'reviewer_id' 
end 

Answer 1

在您的AgentReview型号：

belongs_to :reviewer, :class_name => 'Agent', :foreign_key => 'reviewer_id' 
belongs_to :agent, :class_name => 'Agent', :foreign_key => 'agent_id' 

Answer 2

它看起来像你在AgentReview

class AgentReview < ActiveRecord::Base 
    belongs_to :reviewer, class_name: "Agent", foreign_key: 'reviewer_id' 
    belongs_to :agent 
end 

缺少关联