Put a link in a flash[:notice]

Question

I am learning Ruby and Rails.

I have a Ruby on Rails project that tracks jobs a server is running. Right now, when I manually create a new job, it announces:

flash[:notice] = "Created job job number #{update.id}."

I would like to turn the #{update.id} into a link to the job on the job list.

The URL for going to the job is jobs/list?job=1234 where 1234 is the update.id that is displayed in the flash notice.

Is it possible to put a link into a flash[:notice] statement? Or do I need to re-work how this message is being displayed in order to turn it into a link?

Answer 1

Don't forget to add .html_safe at the end of the notice, if you're using Rails3. So it would say flash[:notice] = "Your message".html_safe

Answer 2

The @template instance variable is no longer available in Rails 3.

Instead you can use this in your controller:

flash[:notice] = "Successfully created #{view_context.link_to('product', @product)}.".html_safe

Hope this helps :)

Answer 3

I may be missing something obvious, but you should just be able to do

flash[:notice] = %Q[Created job number <a href="/jobs/list?job=#{update.id}">#{update.id}</a>]

and then just make sure you're not escaping the content of the flash when you display it in your view.

Answer 4

As nas commented, link_to is not available from your controller unless you include the appropriate helper module, but url_for is. Therefore I'd do pretty much what Emily said except use url_for instead of hardcoding a URL.

e.g. if a job were defined as a resource in your routes:

link = "<a href=\"#{url_for(update)}\">#{update.id}</a>"    
flash[:notice] = "Created job number #{link}"