Q: Grails ManyToOne Relationship auto-insert to List? I have the following Grails classes and relationships: 
class Book {
   static hasMany = [articles: Article]
}

class Article {
   static belongsTo = [book: Book]
}

Can I do the following to get a correct relationship being set? 
def book = // some book instance
def article = new Article()
article.book = book
article.save()

Is the former same as the following? 
def book = // some book instance
def article = new Article()
book.addToArticles(article)
book.save()


A: *

*Yes you can.

*Yes it is.


you can turn on sqllog in DataSource.config and compare result sql.
belongsTo  - saves and deletes will cascade from Book to the associated Article.
