self.search body Rails

Question

在 Rails 中，我正在尝试为 Articles 项目创建一个额外的 Search 字段，其中第二次搜索字段搜索文章 Body 和 not the Title!

看这里的项目 https://glacial-island-18918.herokuapp.com/

index.html.erb

    <div id="main">
     <%= form_tag articles_path, :method => 'get' do %>
      <%= text_field_tag :search, params[:search], class: "form-control", placeholder: "Search Title" %><br><div>
       <%= submit_tag "Search", :name => nil, class: "btn btn-success" %>
        <% end %>

     <%= form_tag articles_path, :method => 'get' do %>
      <%= text_field_tag :body, params[:body], class: "form-control", placeholder: "Search Body" %>
       <%= submit_tag "Search", :name => nil, class: "btn btn-success" %>
        <% end %>

Article.rb

    def self.search(query)
     # where(:title, query) -> This would return an exact match of the query
       where("title like ?", "%#{query}%")
    end

ArticlesController.rb

    def index

     @articles = Article.all
     @markdown = Redcarpet::Markdown.new(Redcarpet::Render::HTML)

    # Adding search feature for Title.
      if params[:search]
         @articles = Article.search(params[:search]).order("created_at DESC")
      else
         @articles = Article.all.order('created_at DESC')
      end
    end

我搜索了这些 Stack 帖子，但似乎找不到答案（我本想 post 编辑更多，但因为我的声誉很低，所以我只能 post 两个链接。 )

Search in Rails ==> 但它只讨论如何让搜索正确地针对标题工作，没有提到 body

http://railscasts.com/episodes/111-advanced-search-form/ ==> 这有点符合我的要求，但这对我来说似乎更难，而不是简单地搜索 table 中行的另一列；搜索 Body 列而不是 Title 列。

我试过向 Article.rb 模型添加不同的方法，Articles_controller.rb，但我只是在黑暗中拍摄； any suggestions Stack family?

Your help would be greatly appreciated! Thanks! =)

Answer 1

这不是最优雅的解决方案，但这里有一个简单的方法。

首先，更改您的视图以对标题和 body 搜索使用不同的键（title_search 用于标题，body_search 用于 body）：

<div id="main">
 <%= form_tag articles_path, :method => 'get' do %>
   <%= text_field_tag :title_search, params[:title_search], class: "form-control", placeholder: "Search Title" %><br><div>
   <%= submit_tag "Search", :name => nil, class: "btn btn-success" %>
 <% end %>

 <%= form_tag articles_path, :method => 'get' do %>
   <%= text_field_tag :body_search, params[:body_search], class: "form-control", placeholder: "Search Body" %>
   <%= submit_tag "Search", :name => nil, class: "btn btn-success" %>
 <% end %>
</div>

然后将控制器更改为

def index
  @articles = Article.all
  @markdown = Redcarpet::Markdown.new(Redcarpet::Render::HTML)

  if (title = params[:title_search].presence) || (summary = params[:body_search].presence)
    @articles = Article.search(title: title, body: body).order("created_at DESC")
  else
    @articles = Article.all.order('created_at DESC')
  end
end

最后，更新您的 search 方法以获取哈希值：

def self.search(query_hash)
   result = all
   result = result.where("title like ?", "%#{query_hash[:title]}%") if query_hash[:title]
   result = result.where("body like ?", "%#{query_hash[:body]}%") if query_hash[:body]
   result
end

self.search body Rails