haml 不允许在 Rails 3 中使用多种形式？答案

【问题标题】：haml is not allowing multiple forms in Rails 3?haml 不允许在 Rails 3 中使用多种形式？
【发布时间】：2014-02-21 17:18:54
【问题描述】：

#social_list
  = form_tag notes_path, class: 'form clearfix', id: 'add_post_form',multipart: true, remote: true 
  .control-group
    = text_area_tag "comment[text]", '', :placeholder => 'Post to the community', :cols => nil, :rows => nil, :class => 'mention expand-without-submit'
    = file_field_tag "picture", id:'image_upload', accept: 'image/png,image/gif,image/jpeg'
    = submit_tag "Post your message", class: 'btn btn-success btn-mini'

  = form_tag images_path
    = submit_tag 'asad'  

  = render "dashboards/activity_stream_filter"

我想添加第二种形式，但它给了我这个错误。

syntax error, unexpected keyword_ensure, expecting $end

我猜有些范围界定问题搞砸了，或者单页中可能有多个表单？

【问题讨论】：

标签： ruby-on-rails-3 forms haml

【解决方案1】：

form_tag method 为表单内容占用一个块。在你的第一个表单中，你根本没有提供一个块，因为它下面没有缩进。在第二种情况下，下面有缩进的内容，但您没有包含do。第二种情况导致语法错误。

我认为你想要的是

#social_list
  - # note 'do' added to this line:
  = form_tag notes_path, class: 'form clearfix', id: 'add_post_form',multipart: true, remote: true do
    - # this section indented:
    .control-group
      = text_area_tag "comment[text]", '', :placeholder => 'Post to the community', :cols => nil, :rows => nil, :class => 'mention expand-without-submit'
      = file_field_tag "picture", id:'image_upload', accept: 'image/png,image/gif,image/jpeg'
      = submit_tag "Post your message", class: 'btn btn-success btn-mini'

  - # 'do'added to next line
  = form_tag images_path do
    = submit_tag 'asad'  

  = render "dashboards/activity_stream_filter"

【讨论】：