GPMONGODB-57: Provide a constraint that helps in constraining the depth of a self join

Original Reporter: bond
Environment: Not Specified
Version: 1.0.0.M7
Migrated From: http://jira.grails.org/browse/GPMONGODB-57

Suppose there is

{noformat}
class Organisation{
static hasMany={organisations:Organisation}

static constraints = {
organisations range:1..2
}
}
{noformat}

The above declaration allows 2 Organisation objects to be created under every other Organisation. If possible could you please provide a constraint using which we can restrict this depth. For example, a Organisation should have only two children and no more children of children should be possible.