如何在rails中删除多个选中的记录？

问题描述

我想出了如何显示每一行的复选框。
问题是，我找不到如何编写form_tag和提交标签，以便使用detele操作将checked rows参数传递给messages_controller。
和在删除操作中要写什么。

I figured out how to display checkbox for each row.The problem is that I can't find out how to write form_tag and submit tag in order to pass the checked rows parameter to messages_controller with using detele action.and what to write in delete action.

请帮助我！

我的视图

<table>
  <tr>
    <th>delete</th>
    <th>ID</th>
    <th>Read</th>
    <th>Date</th>
    <th>Sender</th>
    <th>Subject</th>
  </tr>


<% @messages.each do |m| %>
  <tr>
    <td><%= check_box_tag '', m.id, false, class: 'delete_multiple_checkbox', name: "conversations[]" %>
    <td><%= m.last_message.id %></td>
    <td><%= 'unread' if m.is_unread?(current_user) %></td>
    <td><%= m.last_message.created_at %></td>
    <td><%= m.last_sender.username %></td>
    <td><%= m.subject %></td>
 </tr>
<% end %>
</table>

和控制器应该是这样的（根据这里）

and controller should be something like this( according to this here https://github.com/frodefi/rails-messaging/blob/master/app/controllers/messaging/messages_controller.rb)

def trash
  conversation = Conversation.find_by_id(params[:id])
  if conversation
    current_user.trash(conversation)
    flash[:notice] = "Message sent to trash."
  else
    conversations = Conversation.find(params[:conversations])
    conversations.each { |c| current_user.trash(c) }
    flash[:notice] = "Messages sent to trash."
  end
  redirect_to messages_path(box: params[:current_box])
end

$ b b

route.rb

route.rb

Example::Application.routes.draw do



 root :to => "top#index"
 devise_for :users, :controllers => { :registrations => "registrations" }

 get 'girls', :to => 'girls#index', :as => :user_root
 match '/girls/comment' => 'girls#comment', :via => :post
 get "girls/show"
 resources :girls
 resources :home

 devise_for :users do get 'logout' => 'devise/sessions#destroy' end

 resources :girls do
   collection do
     get 'tag'
   end
 end


  resources :contacts
  resources :user_profiles

  match 'messages/new/:username', :to => 'messages#new'



  get "messages/sent"
  get "messages/trash"
  get "messages/received"
  get "messages/show"
  get "messages/trash"
  match '/messages/deliver' => 'messages#deliver', :via => :post


end

推荐答案

修改下面列出的语法以符合您的要求：

Modify the syntax listed below to fit your requirement:

Model.where(:id => [1,2,3,4,5]).destroy_all

或

Model.where(id: params[:id]).destroy_all

这篇关于如何在rails中删除多个选中的记录？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！