GORM TransientObjectException

0
votes

I am being plagued by an 

org.hibernate.TransientObjectException

using Grails 2.3.9 and Grails Hibernate 3 Plugin 3.6.10.15

Here's the specific issue:

I have a domain class called Pencil and a domain class Backpack with a many-to-many relationship:

 Pencil{
    PencilType type
    Location location
    Date creationDate
    String description
    int position
    boolean active

    static hasMany = [backpacks: BackPack]
    static belongTo = [backpacks: BackPack]

    static constraints = { .... all nullable ..... }
 }

 BackPack{
    Color color
    int size

    static hasMany = [pencils: Pencil]
    static belongsTo = [pencils: Pencil]

    static constraints = { .... all nullable ..... }
  }

If I create and save a pencil, I cannot save without getting the:

org.hibernate.TransientObject Exception
Message: object references an unsaved transient instance - save the transient instance before flushing: Pencil

This occurs even when creating a blank pencil object. 

 new Pencil().save()

--UPDATE-- **Problem occurs using both Hibernate3 and Hibernate4 Grails plugin.

1
hibernategrailsgrails-orm

1 Answers

0
votes

Try making sure you have properly demarcated your transactional boundaries with @Transactional or withTransaction for write operations.