Grails: can we pass string as id in g:link? Or any other way?

Question

Scenario:
I want to create g:link which will redirect to

www.xyz.com/controller/action/title_of_question

instead

www.xyz.com/controller/action/id_of_question

I know that later one can be created easily configuring id param of the g:link.
Please note that title_of_question is String separated with hyphen (-)
Can anybody suggest me how to achieve it?

Answer 1

Short answer: yes, we can :)

If you have no rule in UrlMappings.groovy which defines id as Long or Integer you can create links with String identifier like below:

<g:link controller="controllerName" action="show" id="someName">Link!</g:link>

And define controllers action with identifier as String:

def show(String id) {
    ...
}