Playing around with moving html from flash messages into helper methods

flash_helper.rb

module FlashHelper
  
  # If message contains symbol like strings we'll inject the value from that helper method
  # e.g. 'foo :bar baz' will return 'foo <return value of the bar method> baz'
  def render_flash_message(message)
    h(message).gsub(/:(flash_\w+)/) { send $1 }
  end
  
  def flash_helper_method
    '*you called a_helper_method*'
  end
  
  def flash_signup_link
    link_to 'sign up', new_user_path
  end
  
end

index.html.erb

<div>
  <%= render_flash_message flash[:message] %>
</div>

output.html

<div> 
  hello world *you called a_helper_method* and a <a href="/users/new">sign up</a> link
</div>

wems_controller.rb

class WemsController < ApplicationController
  
  def index
    flash.now[:message] = "hello world :flash_helper_method and a :flash_signup_link link"
  end
  
end