On 2010-12-16, at 9:36 AM, David Holt wrote:
> Hi Peter, > > It should just work if you've set the right rules. > > Check out the example project on the page below. I created new Persons with > avatars and I don't remember doing anything special, certainly not in the > model. > > http://wiki.objectstyle.org/confluence/display/WONDER/ERAttachment+Framework > > What rules are you using for the attachment property? For that matter, what properties are you using to configure the ERAttachment? > > David > > > On 2010-12-16, at 9:11 AM, Dan Beatty wrote: > >> Hi Peter, >> Welcome to the list. I am surprised the Davids, the gentlemen, and Chuck >> have not responded yet. >> >> The only way I am aware of is in the awake from insertion, namely to have >> one always inserted when the EO is created. But, that seems like swap fly >> with shot gun approach. >> >> V/r >> >> Daniel Beatty >> Computer Scientist, Detonation Sciences Branch >> Code 474300D >> 2400 E. Pilot Plant Rd. M/S 1109 >> China Lake, CA 93555 >> [email protected] >> (760)939-7097 >> >> >> >> >> On 12/15/10 10:39 AM, "P C" <[email protected]> wrote: >> >>> I have a table called person, and the ERAttachment is an avatar to that >>> person. My migrations setup initial values for a person, and I can add an >>> avatar (ERAttachment) to an existing person. >>> >>> >>> >>> When I try to create a new person (within ERModernLook) and try to add the >>> avatar I get a NullPropertyException thrown. I think what happens (correct >>> me if I'm wrong) is that the there is no primary key assigned to my person >>> object and values for attributes in person object are not saved in the >>> database and when ERAttachment tries to make a relationship pointing back >>> to the person object it throws the exception "type: NullPropertyException; >>> additionalExceptions: ()>". >>> >>> How do I fix this? Thank you for your help. >>> >>> Very respectfully, >>> Peter >>> >>> _______________________________________________ >>> Do not post admin requests to the list. They will be ignored. >>> Webobjects-dev mailing list ([email protected]) >>> Help/Unsubscribe/Update your Subscription: >>> http://lists.apple.com/mailman/options/webobjects-dev/daniel.beatty%40navy.mil >>> >>> This email sent to [email protected] >> _______________________________________________ >> Do not post admin requests to the list. They will be ignored. >> Webobjects-dev mailing list ([email protected]) >> Help/Unsubscribe/Update your Subscription: >> http://lists.apple.com/mailman/options/webobjects-dev/programmingosx%40mac.com >> >> This email sent to [email protected] > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Webobjects-dev mailing list ([email protected]) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/webobjects-dev/programmingosx%40mac.com > > This email sent to [email protected]
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