无法从产量中放入参数

Question

Why I can't puts parameter from yield?

Error:

undefined local variable or method `options' for #<#<Class:0x007fd1bd8735e8>:0x007fd1ba3e4fe8>

/app/helpers/bootstrap_form_helper.rb

...
  def inline
    options = "row_disable"
    content_tag(:div, class: "row test") { yield(options) }
  end
...

/app/views/signup/new.html.erb

...    
<%= inline do %>
  <%= options %>
  <%= person_f.text_field(:last_name, control_col: 7) %>
<% end %>
...

Answer 1

You cannot access the local variable , options , defined in the inline method. You have to access the argument passed to the block by the inline method, and to do that you need to have your block in new.html.erb accept an options argument:

  ...    
  <%= inline do |options| %>
    <%= options %>
    <%= person_f.text_field(:last_name, control_col: 7) %>
  <% end %>
  ...

Just to clarify a little further, you don't even need to call it options in new.html.erb. The following would also work:

  ...    
  <%= inline do |foo| %>
    <%= foo %>
    <%= person_f.text_field(:last_name, control_col: 7) %>
  <% end %>
  ...