Grails update instead of delete

Question

Is there an easy way in Grails to not allow deleting for any Domain Class? And rather have a delete flag in each domain which gets updated whenever something is deleted.

Answer 1

You'll have to ovveride the delete and list methods of all your domain classes. Add code like this to your Bootstrap

class BootStrap {

  def grailsApplication

  def init = { servletContext ->

  for (dc in grailsApplication.domainClasses) {

     dc.clazz.exists(-1);  //to register meta class

     def gormSave = dc.clazz.metaClass.getMetaMethod('save');         
     dc.clazz.metaClass.delete = {  ->
        delegate.deleted = true
        gormSave.invoke delegate
     }

     dc.clazz.metaClass.delete = { Map args  ->
        delegate.deleted = true
        gormSave.invoke(delegate, args)
     }

     dc.clazz.metaClass.static.list = {  ->
        def crit = delegate.createCriteria();
        def list = crit.list{
          eq('deleted', false)
        }
        return list;
     }



  }
}

   def destroy = {}
}