Rails- nested content_tag

Question

I\'m trying to nest content tags into a custom helper, to create something like this:

   A Label
   &l         


        
                      

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Answer 1

You can also use the concat method:

module InputHelper
  def editable_input(label,name)
    content_tag :div, :class => "field" do
      concat(content_tag(:label,label))
      concat(text_field_tag(name,'', :class => 'medium new_value'))
    end
  end
end

Source: Nesting content_tag in Rails 3

Answer 2

You need a + to quick fix :D

module InputHelper
  def editable_input(label,name)
    content_tag :div, :class => "field" do
      content_tag(:label,label) + # Note the + in this line
      text_field_tag(name,'', :class => 'medium new_value')
    end
  end
end

<%= editable_input 'Year Founded', 'companyStartDate' %>

Inside the block of content_tag :div, only the last returned string would be displayed.

Answer 3

I use a variable and concat to help with deeper nesting.

def billing_address customer
  state_line = content_tag :div do
    concat(
      content_tag(:span, customer.BillAddress_City) + ' ' +
      content_tag(:span, customer.BillAddress_State) + ' ' +
      content_tag(:span, customer.BillAddress_PostalCode)
    )
  end
  content_tag :div do
    concat(
      content_tag(:div, customer.BillAddress_Addr1) +
      content_tag(:div, customer.BillAddress_Addr2) +
      content_tag(:div, customer.BillAddress_Addr3) +
      content_tag(:div, customer.BillAddress_Addr4) +
      content_tag(:div, state_line) +
      content_tag(:div, customer.BillAddress_Country) +
      content_tag(:div, customer.BillAddress_Note)
    )
  end
end

Answer 4

building nested content tags with iteration is a little different and gets me every time... here is one method:

      content_tag :div do
        friends.pluck(:firstname).map do |first| 
          concat( content_tag(:div, first, class: 'first') )
        end
      end