class Forum {
    String title
    String details
    String active
    User user
    Date createdDate
    Date modifiedDate
    static hasMany = [ categories: ForumCategory ]
    static constraints = {
    }
}
class ForumCategory extends Forum {
    Attachment attachment
    static hasMany = [ topics : Topic ]
    static belongsTo = Forum
    static constraints = {
    }
}
class Topic extends ForumCategory {
    static hasMany = [threads: Thread]
    def belongsTo = ForumCategory
    static constraints = {
    }
}
class Thread extends Topic {
    static hasMany = [replies:Reply]
    def belongsTo = Topic
    static constraints = {
    }
}
class Reply extends Thread {
    def belongsTo = Thread
    static constraints = {
    }
}

--------

class User {
    String username
    String firstName
    String lastName
    Date createdDate
    Date modifiedDate
    String active
    String emailAddress
    static hasMany = [ phoneNumbers: PhoneNumber ]
    String password
    String company
    String nickName
    String databaseEventUpdates
    String middlewareEventUpdates
    String applicationEventUpdates
    String partnerEventUpdates
    Avatar avatar

    static constraints = {
    }
}
class PhoneNumber {
    String type
    String phNumber
    static constraints = {
    }
}
class Avatar {
    String thumbURI
    String fullURI

    static constraints = {
    }
}
class Attachment {
    String filename
    String mimetype
    Date createdDate
    Date modifiedDate
    String active

    static constraints = {
    }
}