prependTo*

Purpose

Prepends an element to an existing instance’s embedded list, where the actual list prepended to is indicated by the property used as the suffix to the method.

Examples

class Person {
    List<Integer> scores
    Set<String> friends
    Map<String, String> pets
}

def person = Person.get(uuid)
person.prependToScores(5)
Person.prependToScores(5(person.id, 6, [flush:true])

Description

The prependTo* method is a dynamic method that adds an element to the start of an embedded list. The method exists as a static and instance method. The static method simply adds the element to the datastore, the instance method adds the element to the in-memory instance and the datastore.

Argument: * id - the id or primary key map of the instance. Only required if using the static method. * element - the element to prepend * flush (optional) - When set to true flushes the persistence context, updating the datastore immediately