Use the <g:link> tag to link to another action. For example:
To link to ‘someAction’ in the same controller being used to handle this current view page, passing an id:
<code><g:link action="someAction" id="${exampleDomainObject.id}"></code>
If the action is in a different controller, then specify the controller as well:
<code><g:link action="someAction" controller="OtherControlller" id="${exampleDomainObject.id}"></code>