[mythtv-users] Problem with self referenced associations

[Andréas Kühne]

2013/11/2 Tom Lichti <tom at redpepperracing.com>

> On Sat, Nov 2, 2013 at 4:44 PM, Andréas Kühne <andreas at kuhne.se> wrote:
>
>> Hi,
>>
>> I have a domain that has several one to many relationship with itself.
>> They are declared by the following:
>>
>> class Contact {
>> static hasMany = [ bosses: Contact, coworkers: Contact ]
>> static mapping = [ bosses: 'bosses', coworkers: 'coworkers' ]
>>
>> def beforeDelete() {
>> Contact.withNewSession { session ->
>>  for (Contact boss: this.bosses)
>> this.removeBoss(boss)
>> for (Contact coworker: this.coworkers)
>>  this.removeCoworker(coworker)
>> }
>> return true
>> }
>> }
>>
>> (this is just a snippet of the code, the code that I am having problems
>> with). The problem I am having is when the beforeDelete event is run I get
>> a NullPointerException in the line where I try to iterate over the bosses.
>>
>> I can't seem to get this to work and was wondering if anyone has any
>> ideas or could point me in the right direction?
>>
>>
>>
> I'm going to take a wild guess and say you sent this to the wrong list.
> Someone may be able to help you though... :)
>
> Tom
>
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>
Tom,

Thats not such a wild guess. Must have been tired yesterday! Thanks all :-)

Regards,

Andréas
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