ActsAsTaggable Plugin

You might want to look at the Grails Taggable plugin, as it seems to have been updated more recently.

This plugin adds the RoR "acts_as_taggable" ability to domain classes.

The domain class just needs to implement the Taggable interface, then it has the methods below:

class Book implements Taggable
{ … }
def book = new Book()
…
book.save()
…
book.addTag( "java")
book.addTag( "groovy")
book.addTag( "grails")
assertEquals( "java groovy grails", book.tags)
book.removeTag( "groovy")
assertEquals( "java grails", book.tags)
book.tags = "java groovy"
book.removeTag("java")
assertEquals( "groovy", book.tags)

Attention:

The source repository is http://code.google.com/p/grailsactsastaggable/

To install this plugin follow the instructions at http://code.google.com/p/grailsactsastaggable/, since it is not within the grails plugin list to install online.