rails i18n - translating text with links inside

Question

I\'d like to i18n a text that looks like this:

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Note that there is a link on the text. On this example

Answer 1

Thank you very much, holli, for sharing this approach. It works like a charm for me. Would vote you up if I could, but this is my first post so I'm lacking the proper reputation ... As an additional piece to the puzzle: The problem I realized with your approach is that it still won't work from inside the controller. I did some research and combined your approach with the one from Glenn on rubypond.

Here is what I came up with:

View helper, e.g. application_helper.rb

  def render_flash_messages
    messages = flash.collect do |key, value|
      content_tag(:div, flash_message_with_link(key, value), :class => "flash #{key}") unless key.to_s =~ /_link$/i
    end
    messages.join.html_safe
  end

  def flash_message_with_link(key, value)
    link = flash["#{key}_link".to_sym]
    link.nil? ? value : string_with_link(value, link).html_safe
  end

  # Converts
  # "string with __link__ in the middle." to
  # "string with #{link_to('link', link_url, link_options)} in the middle."
  # --> see http://stackoverflow.com/questions/2543936/rails-i18n-translating-text-with-links-inside (holli)
  def string_with_link(str, link_url, link_options = {})
    match = str.match(/__([^_]{2,30})__/)
    if !match.blank?
      $` + link_to($1, link_url, link_options) + $'
    else
      raise "string_with_link: No place for __link__ given in #{str}" if Rails.env.test?
      nil
    end
  end

In the controller:

flash.now[:alert] = t("path.to.translation")
flash.now[:alert_link] = here_comes_the_link_path # or _url

In the locale.yml:

path:
  to:
    translation: "string with __link__ in the middle"

In the view:

<%= render_flash_messages %>

Hope this post earns me the reputation to vote you up, holli :) Any feedback is welcome.