軌道4 - 如何使用幫助文檔中的相關部分

Question

我試圖找出如何從一個視圖訪問一個輔助方法，在相關的支架

我有型號名爲Project和倫理。該協會是：

Project has_many :ethics 
Ethic belongs_to :project 

在我的道德幫手，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 

然後在我的項目文件夾查看，我有一個叫做偏其中_ethics.html.erb有：

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

        <% end %> 

在我的項目控制，我曾嘗試：

include EthicsHelper 

當我嘗試，我得到一個錯誤，指出：

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

任何人都可以看到我已經錯了嗎？

Answer 1

在文件_ethics.html.erb，你只能修改這個代碼：

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

更新：

我在你的文件ethics_helper.rb看到，看來你的邏輯代碼是不正確的。

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