ruby-on-rails - 在 Rails 中搜索

Question

我有一个“帖子”表，其属性包括 title和 body .

post_controller.rb:

class PostsController < ApplicationController
  def index
    @posts = Post.search(params[:search], params[:id])
  end
end

index.html.erb:

 <%= form_tag posts_path, :method => 'get'  do %>
   <%= text_field_tag :search, params[:search]%>
   <%= submit_tag "Search", :name => nil  %>
 <% end %>

<hr />
<table>
  <tr>
    <th>Title</th>
    <th>Text</th>
  </tr>
 <tr>
  <td><hr></td>
  <td><hr></td>
</tr>
  <% @posts.each do |post| %>

    <tr>
      <td><%= post.title %></td>
      <td><%= post.text %></td>
      <td><%= link_to 'Show', :action => :show, :id => post.id %></td>
      <td><%= link_to 'Edit', :action => :edit, :id => post.id %></td>
      <td><%= link_to 'Destroy', { :action => :destroy, :id => post.id }, :method => :delete, :confirm => 'Are you sure?' %></td>
    </tr>
    <tr>
      <td><hr></td>
      <td><hr></td>
    </tr>
  <% end %>
</table>

和 post.rb

def self.search(search, id)
 if search
   where(['name LIKE ?', "%#{search}%"])
 else
  scoped
 end
end

当我提交搜索参数时，我收到一条错误消息:

ActiveRecord::StatementInvalid in Posts#index 
SQLite3::SQLException: no such column: name: SELECT "posts".* FROM "posts"  WHERE (name LIKE '%lorem%') 

Extracted source (around line #23):

23:   <% @posts.each do |post| %>

APD:我想按“标题”搜索。

Answer 1

虽然这不是您问题的直接答案，但这里有一些资源可以帮助您了解搜索并在 Rails 应用程序中实现它。

A Simple search form

Advanced search form

Searching with AJAX

Powerful search functionality with the Sunspot gem

List of the most popular search tools for Ruby

- - - - - - - -更新 - - - - - - - -

Elasticsearch 之所以越来越受欢迎，是因为它具有一些现代的功能，例如即时索引。它有一颗名为轮胎的 ruby 。绝对值得一看。

Elasticsearch

Tire

---------------更新 2----------------

轮胎已退役，已被 Elasticsearch-ruby 取代