gorm

Need of help. I am new to Grails, My question is How to do db-reverse-engineer.? I did it in Grails 2.5.1 but I am struggling with Grails 3.1.0.M2 version. Thanks in advance. There's no plugin for Grails 3. I started to convert the older one but it's more work than I was expecting because it has to work with Hibernate 4, and the old plugin only works with Hibernate 3. But the generated files wouldn't be any different in Grails 3 than in Grails 2 since GORM has stayed rather consistent. Since the plugin is only used at build time, and often only once or at most a few times, I recommend that you

I'm trying to map existing tables in a GORM/Grails app. Most of the tables have composite primary keys (not my choice). I'm finding that when I map an association to a class (parent of a child) where the composite key of the parent class contains an association to a class with a composite key also (grandparent), GORM doesn't bother to check the mapping of the grandparent class and subs in a non-composite key. Child class Child implements Serializable { Parent parent String name belongsTo= [parent: Parent] static mapping= { id(composite: ['parent', 'name']) } } Parent class Parent implements

If I make a domain object in a controller and don't call .save() , Grails will do it for me automatically at some point. I am creating lots of domain objects without planning to save all of them and getting 'references an unsaved transient instance' exceptions when my service exits. How would I get a list of all objects that Grails will try to save when the controller/service exits so that I could prevent some of them from being saved? You're better off retrieving instances that you know you will edit but don't want persisted with the read method instead of get . Using read doesn't make it