let ideasRef = firebase.childByAppendingPath(IdeaStructure.PATH_IDEAS)
    ideasRef.observeEventOfType(.Value, withBlock: { snapshot in
        print(snapshot.value)
        }, withCancelBlock: { error in
            print(error.description)
    })

let ideasRef = firebase.childByAppendingPath(IdeaStructure.PATH_IDEAS).childByAutoId()
    let idea = [
        IdeaStructure.FIELD_MESSAGE: message,
        IdeaStructure.FIELD_CREATOR_ID: userId,
        IdeaStructure.FIELD_CREATION_DATE: NSDate().formattedISO8601
    ]
    ideasRef.setValue(idea)