从常规 ERB 切换到精简文件后，我无法使用表格。这是我尝试进行 slim 渲染的形式:
= form_for @student, :url => students_path(@student), method: :post do |f|
= f.hidden_field :student_id, :value => current_user.id
= f.hidden_field :course_id, :value => group.id
= submit_tag "Join this Class!", :class => "btn btn-primary pull-right join-button"
这是常规 ERB 文件中的工作代码
<%= form_for @student, :url => students_path(@student), method: :post do |f| %>
<%= f.hidden_field :student_id, :value => current_user.id %>
<%= f.hidden_field :course_id, :value => group.id %>
<%= submit_tag "+ Join", :class => "btn btn-primary pull-right join-button" %>
<% end %>
这是我目前遇到的错误:
undefined local variable or method `f'
最佳答案
slim 的最大问题是缩进试试这个(form_for 后的两个空格):
= form_for @student, :url => students_path(@student), method: :post do |f|
= f.hidden_field :student_id, :value => current_user.id
= f.hidden_field :course_id, :value => group.id
= submit_tag "Join this Class!", :class => "btn btn-primary pull-right join-button"
关于ruby-on-rails - Rails slim form_for 标签，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/26914923/