One to Many relationship not inserting to one table

[Nirenj George]

Hi there,

I am new to Grails. There are 2 tables names 'Vessel' and 'Comment'. Each vessel records can have multiple comments posted by different users. When user saves any Vessel record along with any Comments, Vessel data must be saved to Vessel table and each Comment must be saved to Comment table with reference to record in Vessel table.

Now the problem is that once I call the save button, my app only inserts record into Vessel table and does not insert any records into Comment table. I have given one-to-many relationship.

Please advice whether I need to do any extra steps to make sure both tables get data inserted, or is there anything I am missing here. I am using Grails 1.3.7.

Thanks a lot in advance.

class Vessel {
	static constraints = {
	}
	
	Date dateCreated
	Date lastUpdated
	String CharterDetails
	String OwnerCompanyInfo
	String createdBy
	String updatedBy
	
	List comments = new ArrayList()
	static hasMany = [ comments:Comment ]
	
	static mapping = {
		comments cascade:"all-delete-orphan"
	}
	
	def expandablecommentList() {
		return LazyList.decorate(comments,FactoryUtils.instantiateFactory(Comment.class))
	}
}

class Comment {
	static constraints = {
	}
	
	String miscComments
	Date dateCreated
	Date lastUpdated
	User createdBy
	User updatedBy

	boolean _deleted	
	static transients = [ '_deleted' ]
	
	static belongsTo = [ vessel:Vessel ]
	
	def String toString(){
		return miscComments
	}
}

def save = {
        def vesselInstance = new Vessel(params)
		if(!vesselInstance.hasErrors() && vesselInstance.save()) {
            flash.message = "${message(code: 'default.created.message', args: [message(code: 'vessel.label', default: 'Vessel'), vesselInstance.id])}"
            redirect(action: "show", id: vesselInstance.id)
        }
        else {
            render(view: "create", model: [vesselInstance: vesselInstance])
        }
    }

[Gregg Bolinger]

the code you have thus far looks good (albeit with some outdated steps but not detrimental). However, you didn't how / tell us how your 2 domain objects are getting populated in the first place.