導軌搜索

Question

我有一個Project模型有許多UserStories。我想要的是讓用戶通過title,description或UserStory#name在其項目中的個人資料中進行搜索。我成功搜索了title和descripion。有關如何通過UserStory#name進行搜索的任何幫助？

這是我在views/profile/index形式：

<%= form_tag "profile/", :method => :get do %> 
    <%= text_field_tag :search %> 
    <%= submit_tag "Search"%> 
<% end %> 

這裏是我的個人資料/控制器index行動：

def index 
    if params[:search]  
    @projects = current_user.projects 
        .where('title LIKE ? or description LIKE ?', 
          "%#{params[:search]}%", "%#{params[:search]}%") 

    current_user.projects.each do |project| 
     if (project.user_stories) 
     project.user_stories.each do |story| 
      if story.name.include? params[:search] 
      @projects << story.project 
      end 
     end 
     end 
    end 

    @projects = @projects.page(params[:page]).per_page(4) 
    else 
    @projects = current_user.projects.order("title") 
        .page(params[:page]).per_page(4) 
    end  
end 

Answer 1

infused have it right;你可以在一個查詢中做到這一點。你也可以做很多簡化你的代碼。

def index 
    if params[:search] 
    values = { search: "%#{ params[:search] }%" } 

    conditions = %q{ projects.title   LIKE :search 
        OR projects.description LIKE :search 
        OR user_stories.name LIKE :search } 

    @projects = current_user.projects.joins(:user_stories) 
        .where(conditions, values) 
    else 
    @projects = current_user.projects.order(:title) 
    end  

    @projects = @projects.page(params[:page]).per_page(4) 
end 

Answer 2

可以包括其他表中查詢，然後添加條件where子句：

s = "%#{params[:search]}%" 
current_user.projects.includes(:user_stories).where('title LIKE ? OR description LIKE ? OR user_stories.name LIKE ?', s, s, s)