Re: (no subject)
Re: (no subject)
- Subject: Re: (no subject)
- From: David Avendasora <email@hidden>
- Date: Thu, 1 Dec 2005 12:25:09 +0000
Please don't respond to this one. I re-submitted it with a subject!
Sorry.
On Dec 1, 2005, at 12:16 PM, David Avendasora wrote:
Hi all,
This is a newbie question. I am building a Direct to Java Client
app and I've got the data and object models and the basic screens
pretty well nailed down. I'm now starting to add some business
logic into the application.
I have no problem creating the custom classes, setting defaults or
adding additional actions but I'm drawing a blank when it comes to
making EOOneValueEnumerationControllers context sensitive.
I want to limit the number of options available for a given
attribute depending upon other attributes in the same object. For
example, once I specify that the unitOfMeasureType a given object
is "length" then I only want to see unitOfMeasure values that are
of type "Length" instead of seeing all of the types which include
weight, volume, etc.
Right now I am simply displaying ALL the possible unitOfMeasure
values in the database in the drop-down, only some of which are
valid for any given object.
I'm assuming that I will do it by calling a fetch specification,
but I can't find any examples of this in any of the WO books I
have, or Apple's examples. If they are there and I've just missed
them, please point me to them.
Thanks,
Dave
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| References: | |
| | >(no subject) (From: David Avendasora <email@hidden>) |