Create Grails app

• create-app blog
• create-domain-class post
• Edit Post.groovy:
• package blog
  class Post {
      String title
      String content
      Date date
      static constraints = {    }
  }
• generate-all blog.Post
• create-domain-class comment
• Add comments to Post.groovy:
• class Post {
      String subject
      String content
      Date date
      static hasMany = [comments: Comment]
      static constraints = {
          // Ordering constraint
          subject()
          content()
          date()
          comments()    }
  }
• generate-all *
• add to views/post/show.gsp
• <g:link class="comment" action="comment" id="${postInstance?.id}"><g:message code="default.button.comment.label" default="Comment" /></g:link>
•