form_for，每个和fields_for合并时出错

Question

我正在尝试创建一个表，其中包含要编辑的数据形式。 但是，我收到以下错误：

syntax error, unexpected ')' at line 73

第73行是%tr.medium 。 我知道这不是问题所在，我认为这是fields_for行，但是由于我基于类似的在线示例，因此不确定为什么会导致问题。

= form_for :campaign do
  - @campaigns.each do |campaign|
    = fields_for "campaign[]", campaign do |campaign_fields|
    %tr.medium
      %td= link_to campaign.name
      %td= campaign.status    
      %td
        -if ["New", "Updated"].include? campaign.status 
          = campaign_fields.check_box :status, {id: "#{campaign.id}", :class => "approvedservices"}, "Approved", ""
      %td{:style => "width:100px;"}
        -unless ["Rejected", "Approved"].include? campaign.status
          = campaign_fields.check_box :status, {id: "reject#{campaign.id}", :class => "rejectedservices"}, "Rejected", ""
      %td.notes{:style => "display: none"}
        = campaign_fields.text_field :notes, class: 'form-control mandatory', type: "input"
      %tr.medium
        %td.white{:colspan => 8}
        %td.white{:style => "width:100px;"}
          = campaign_fields.submit "Approve", :name => 'Commit'
        %td.white{:style => "width:100px;"}
          = campaign_fields.submit "Reject", :name => 'Reject'

有什么建议么？

Answer 1

%tr.medium及其%tr.medium的代码应如下所示：

= fields_for "campaign[]", campaign do |campaign_fields|
  %tr.medium
    %td= link_to campaign.name

因为HAML与Python类似，所以HAML取决于其制表级别来决定代码块的“级别”。

Answer 2

HAML严格来说是一种要求缩进的语言，因此，如果您错过了缩进，则会发生错误，

= form_for :campaign do
  - @campaigns.each do |campaign|
    = fields_for "campaign[]", campaign do |campaign_fields|
      %tr.medium
        %td= link_to campaign.name
        %td= campaign.status    
        %td
          -if ["New", "Updated"].include? campaign.status 
            = campaign_fields.check_box :status, {id: "#{campaign.id}", :class => "approvedservices"}, "Approved", ""
        %td{:style => "width:100px;"}
          -unless ["Rejected", "Approved"].include? campaign.status
            = campaign_fields.check_box :status, {id: "reject#{campaign.id}", :class => "rejectedservices"}, "Rejected", ""
        %td.notes{:style => "display: none"}
          = campaign_fields.text_field :notes, class: 'form-control mandatory', type: "input"
      %tr.medium
        %td.white{:colspan => 8}
        %td.white{:style => "width:100px;"}
          = campaign_fields.submit "Approve", :name => 'Commit'
        %td.white{:style => "width:100px;"}
          = campaign_fields.submit "Reject", :name => 'Reject'

复制此缩进代码，然后重试一次。