Question

当我创建一个新事件时，似乎所有内容都保存在我的Rails 4应用程序上（使用simple_form），但是当我尝试更新现有事件时（通过转到events/3/edit），它没有＆＃39;保存任何更改。

这是我的控制台日志：

Started PATCH "/events/3" for 12.43.117.2 at 2015-06-17 19:28:34 +0000
Started PATCH "/events/3" for 12.43.117.2 at 2015-06-17 19:28:34 +0000
Processing by EventsController#update as HTML
Processing by EventsController#update as HTML
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"tdCaXgxDSLNJg2qcsB91W9No3fJpu7Z7XDxktXGGJ5A=", "event"=>{"event_name"=>"Salute Miami’s Bicycling Heroes: Reception for Kirk Munroe & Wilson Larkins", "location"=>"Coco Plum Woman's Club, 1375 Sunset Road, Miami, FL 33143", "event_date_time(1i)"=>"2015", "event_date_time(2i)"=>"6", "event_date_time(3i)"=>"17", "event_date_time(4i)"=>"12", "event_date_time(5i)"=>"03", "description"=>"Honor Kirk Munroe,\r\nblahbicycblah", "organizer"=>"blah", "category"=>"Community Event"}, "commit"=>"Update Event", "id"=>"3"}
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"tdCaXgxDSLNJg2qcsB91W9No3fJpu7Z7XDxktXGGJ5A=", "event"=>{"event_name"=>"Salute Miami’s Bicycling Heroes: Reception for Kirk Munroe & Wilson Larkins", "location"=>"Coco Plum Woman's Club, 1375 Sunset Road, Miami, FL 33143", "event_date_time(1i)"=>"2015", "event_date_time(2i)"=>"6", "event_date_time(3i)"=>"17", "event_date_time(4i)"=>"12", "event_date_time(5i)"=>"03", "description"=>"Honor Kirk Munroe,\r\nblahbicycblah", "organizer"=>"blah", "category"=>"Community Event"}, "commit"=>"Update Event", "id"=>"3"}
  Rendered events/update.html.erb within layouts/application (0.1ms)
  Rendered events/update.html.erb within layouts/application (0.1ms)
Completed 200 OK in 173ms (Views: 171.3ms | ActiveRecord: 0.0ms)
Completed 200 OK in 173ms (Views: 171.3ms | ActiveRecord: 0.0ms)

发生这种情况后，我得到一个空白的更新事件页面，上面没有表单字段。然后我返回到事件索引并返回到单个事件，只是发现它是最初的方式。无论它在做什么，它似乎都是两次发送信息（原始信息先发布然后更新），但由于某种原因，更新似乎并不坚持。

对于它的价值，事件控制器的def update部分是空的，我使用的是postgresql数据库。

Github回购：https://github.com/yamilethmedina/wheels_registration 测试服务器：https://wheels-registration-yamilethmedina.c9.io/

Answer 1

这是我最终做的，基于此（用user替换单词event）：https://www.railstutorial.org/book/updating_and_deleting_users#sec-unsuccessful_edits

events_controller.rb：

def update
    @event = Event.find(params[:id])
    if @event.update_attributes(event_params)
      # Handle a successful update.
    else
      render 'update'
    end
  end

也许删除else render 'update'可能会避免空白＆＃34;更新事件＆＃34;我执行此操作后显示的页面，但这更像是一个后端功能（用户不会有编辑这些事件的链接）并且它接受更改，因此我是内容。

无法在Rails应用中更新现有记录

1 个答案: