gorm - Grails : Retrieve all latest children records -

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I'm new to Grails, I have a problem as described below.

I have 2 domain classes: Parents and children I am storing arrays of arrays in the database.

The parent category is: 

  class guardian {is stable [large: child]}   
 is a child class:   class  string string value is static = [parent: parent] static barriers = {time (empty: wrong) record (empty: incorrect) I now need:  < P> I need to recover the baby's latest records, which contain several rows in the database with unique original ID . Example: Parents have the latest ID 7. There are approximately 10 records on Parent ID 7 in the hair table. I want to retrieve all these 10 records with the reference of parent ID (7).  
 Please type some help codes / queries.   
 
 
  gorm  is a greate  ORM  You can use:  
  def parent = parent.get (7) def hair list = hair. Find AllByParent (Parents); Read   
, it will help you to understand the  gorm  better.

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