Rails generate HTML in custom helper

Question

I have the following simplified helper which works:

module MyHelper
  def widget
    link_to new_flag_path do
      content_tag(:i, '', class: "fa fa-flag")
    end
  end
end

I would like to output a second link such as:

  module MyHelper
    def widget
      link_to new_flag_path do
        content_tag(:i, '', class: "fa fa-flag")
      end
      link_to new_comment_path do
        content_tag(:i, '', class: "fa fa-comment")
      end
    end
  end

The solution outlined in the pugautomatic article uses "concat" to concatenate multiple helpers within a single block helper. http://thepugautomatic.com/2013/06/helpers/ This works for standard link_to helpers such as:

module MyHelper
  def widget
    concat link_to("Hello", hello_path)
    concat " "
    concat link_to("Bye", goodbye_path)
  end
end

When using a glyphon in a href you need to use a link_to block helper such as:

link_to new_comment_path do
  content_tag(:i, '', class: "fa fa-comment")
end

Concat does not allow me to concat multiple link_to block helpers such as:

module MyHelper
  def widget
    concat link_to new_flag_path do
      content_tag(:i, '', class: "fa fa-flag")
    end
    concat link_to new_comment_path do
      content_tag(:i, '', class: "fa fa-comment")
    end
  end
end

What is the solution in this scenario?

possible duplicate of Rails 4 custom helper method with form doesn't get output in view - fully — Pavan
– Pavan, Commented Sep 30, 2015 at 9:57
I am familiar with the solution in the linked article however it does now work in this scenario. Concat can only be used within the link_to and accordingly does not allow multiple link_to helpers to be chained. — Dercni
– Dercni, Commented Sep 30, 2015 at 10:00

Arsen · Accepted Answer · 2015-09-30 09:57:35Z

2

I think you have to put each link_to to separate method:

module MyHelper
  def link_to_flag_page
    link_to new_flag_path do
      content_tag(:i, '', class: "fa fa-flag")
    end
  end

  def link_to_new_comment
    link_to new_comment_path do
      content_tag(:i, '', class: "fa fa-comment")
    end
  end
end

And call them one by one

answered Sep 30, 2015 at 9:57

Arsen

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2 Comments

Dercni Over a year ago

The example above is a simplified version of a helper with much logic that needs to output two links from the one helper method.

Matheus208 Over a year ago

But what you showed is not a helper method, it's just a module. Can you encapsulate this logic into a method, then call it from the view?

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