Re: Self-referencing one-to-many: how to get the owner?

>
> Hmmm ... this is similar to what I tried. And gives the same result. :(
>
> When I print out user.users or user.user it's blank. And there's data in the
> database. With only the 'hasMany' mapping user.users works fine.
>
> Any other suggestions?
>
> Bob
>
>
>
> burtbeckwith wrote:
>>
>> I just did something similar; I think the mapping would be:
>>
>>    class User {
>>       String name
>>
>>       static hasMany=[users:User]
>>       static belongsTo = [user: User]
>>       static constraints = {
>>          user nullable: true
>>       }
>>    }
>>
>> 'user' is nullable for the BigBoss case.
>>
>> Burt
>>
>> On Thursday 15 May 2008 10:50:30 am syg6 wrote:
>>> I have this class:
>>>
>>> class User
>>> {
>>> String name
>>> static hasMany=[users:User]
>>> }
>>>
>>> A uni-directional one-to-many where each User can contain a Collection of
>>> Users, and each User belongs to exactly one User. This might seem a
>>> little
>>> complicated but it's what I need. The reason is I have different types of
>>> Users: (these aren't the real names ...)
>>>
>>> User type I, BigBoss - has 1-3 Managers, belongs to no one.
>>> User type II, Manager - has 1-5 Schmucks, belongs to a BigBoss.
>>> User type III, Schmuck - has nobody, belongs to a Manager.
>>>
>>> The problem is, I'd like to know who my 'owner' is. In other words, if I
>>> am
>>> a Schmuck, who is my Manager, and if I am a Manager, who is my BigBoss?
>>>
>>> I tried making the following change to my class, to make it
>>> bi-directional:
>>>
>>> class User
>>> {
>>> String name
>>>         User user
>>>
>>> static hasMany=[users:User]
>>>         static belongsTo = User
>>> }
>>>
>>> But it doesn't work. Now my Collections aren't being populated.
>>>
>>> Can someone help me out?
>>>
>>> Thanks,
>>> Bob
>>
>>
>>
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