使用复选框/错误数量的参数rails 4以一种形式更新多个记录 [英] update multiple records in one form using checkboxes / wrong number of arguments rails 4

问题描述

我一直在教程/论坛中摸索，试图弄清楚如何使用复选框更新多种方法.

I've been bumbling my way through tutorials/forums in an attempt to figure out how update multiple methods using checkboxes.

我需要能够列出我的事件"，并在日期可用的情况下选中或取消选中它们.我想以一种形式进行此操作.我知道这是可能的，但是在无法正常工作之后，我终于来了.

I need to be able to list my "events" and check or uncheck them if the date is available. I'd like to do this on one form. I know this is possible, but I'm finally coming here after failing to get it working.

使用我发布的代码，我收到错误的参数数量，2对1"错误.

With the code I've posted I'm getting "Wrong Number of Arguments, 2 for 1" error.

我尝试了以下信息来源: http://railscasts.com/episodes/52-update-through-checkboxes http://discuss.codeschool. io/t/surviving-apis-with-rails-posting-multiple-records/4776/4 http://railscasts.com/episodes/165-edit-multiple-revised

I've tried these info sources: http://railscasts.com/episodes/52-update-through-checkboxes http://discuss.codeschool.io/t/surviving-apis-with-rails-posting-multiple-records/4776/4 http://railscasts.com/episodes/165-edit-multiple-revised

我在这里

routes.rb

routes.rb

resources :events do
  collection do
    put  :verified
    post :make_events
  end
end

events_controller.rb

events_controller.rb

def verified
  if Event.update_all(["available", true], :id => params[:event_ids])
    redirect_to step2_path(:pid => @project.id,  :u => current_user.id)
  else
  end
end

show.html.erb

show.html.erb

<%= form_tag verified_events_path(:pid =>  @project.id ), method: :put  do  %>
  <table class="table-event-dates">
    <thead>
    <tr>
      <th> </th>
      <th> </th>
    </tr>
    </thead>
    <tbody>
    <tr><% @these_events.each do |event| %>

        <td><%= check_box_tag "event_id[]", event.id, :value => event.available  %></td>
        <td><label> <%= event.date.strftime("%A, %b. %d %G") %></label></td>
        </tr>
        </tbody>
      <% end %>
      </table>

  </div><br><!-- panel-body -->
  <div class="panel-footer2">
    <div class="row">
      <%= submit_tag 'Verify Dates',  :class => 'btn btn-green btn-lg btn-block' %>
<% end %>

推荐答案

可能应该采用老式风格:

Probably it should work in old-fashioned style:

Event.update_all("available = 1", ["id in (?)", params[:event_ids]])

也许available = true或'true'，我不确定.或者:

perhaps available = true or 'true', i'm not sure. Or:

Event.update_all(["available", true], ["id in (?)", params[:event_ids]])

但是，也许您应该清除参数.检查它们的格式是否正确(1, 2, 4 ..).

However, maybe you should clear params. Check that they are in correct form (1, 2, 4..).

您也可以尝试以下方法:

Also you could try this:

Event.where(id: params[:event_ids]).update_all(available: true)

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