Rails 4-如何在关联的部分中使用辅助文本

Question

我试图弄清楚如何从关联的脚手架中的视图中访问助手方法

我有一个叫做项目和伦理的模型。这些协会是：

Project has_many :ethics
Ethic belongs_to :project

在我的道德助手中，我有：

module EthicsHelper
    def text_for_subcategory(category)
      if category == 'Risk of harm'
            [ "Physical Harm", "Psychological distress or discomfort", "Social disadvantage", "Harm to participants", "Financial status", "Privacy"]
        elsif category == 'Informed consent'
            ["Explanation of research", "Explanation of participant's role in research"]
        elsif category == 'Anonymity and Confidentiality'
            ["Remove identifiers", "Use proxies", "Disclosure for limited purposes"]
        elsif category == 'Deceptive practices' 
            ["Feasibility"] 
        else category == 'Right to withdraw'    
            ["Right to withdraw from participation in the project"] 
       end
    end  

end

然后，在我的projects视图文件夹中，我有一个名为_ethics.html.erb的部分，它包含：

<% @project.ethics.each do | project_ethics_issue | %>
                       <strong>ETHICS CONSIDERATION: <%= project_ethics_issue.text_for_subcategory(@category) %></strong>
                        <%= project_ethics_issue.considerations %>

                    <% end %>  

在我的项目控制器中，我尝试过：

  include EthicsHelper

当我尝试这样做时，我会发现一个错误：

undefined method `text_for_subcategory' for #<Ethic:0x007fedc57b7b58>

有人能看到我哪里出了问题吗？

Answer 1

在_ethics.html.erb文件中，您只将此代码修改为：

<% @project.ethics.each do | project_ethics_issue | %>
  <strong>ETHICS CONSIDERATION: <%= text_for_subcategory(@category).join(",") %></strong>
  <%= project_ethics_issue.considerations %>
<% end %>  

更新：

我在您的文件ethics_helper.rb中看到，您的逻辑代码似乎不正确。

module EthicsHelper
  def text_for_subcategory(category)
    if category == 'Risk of harm'
        [ "Physical Harm", "Psychological distress or discomfort", "Social disadvantage", "Harm to participants", "Financial status", "Privacy"]
    elsif category == 'Informed consent'
        ["Explanation of research", "Explanation of participant's role in research"]
    elsif category == 'Anonymity and Confidentiality'
        ["Remove identifiers", "Use proxies", "Disclosure for limited purposes"]
    elsif category == 'Deceptive practices' 
        ["Feasibility"] 
    elsif category == 'Right to withdraw'    
        ["Right to withdraw from participation in the project"] 
    else
        []
    end
  end  
end