Re: Displaying attributes derived from relationships in D2W
Re: Displaying attributes derived from relationships in D2W
- Subject: Re: Displaying attributes derived from relationships in D2W
- From: Denis Stanton <email@hidden>
- Date: Tue, 27 Jan 2004 16:19:36 +1300
On Tuesday, January 27, 2004, at 02:48 PM, Steve Sharman wrote:
I have two EO entities, Person and EmailAddress. I have a
relationship:
Person <-->> EmailAddress
which in Person is called emailAddress. What I want to be able to do
is to modify the Person List page in D2W in order to display the email
addresses for the selected Persons in the list. When I start the
Assistant to modify the Person List page, I select the "Properties"
tab, which appears as it is shown in the Apple documentation. I can
see the +emailAddress relationship in the left hand column. What I'm
expecting to be able to then do is click on that, and see the
attributes and relationships of the entity pointed to in the next
column along - and I don't see this. All I see is what looks like a
set of functions - +@avg, +@count, and so on. No attributes or
relationships - although if I click one of these,
Since there are potentially many email addresses for one person the
emailAddress (if you look closely it might be the incorrectly assumed
plural emailAddresss) the relationship cannot point to one record. It
points instead to an array and you are seeing the functions that you
can perform on that array, like count(). If you want to display ALL
the emailAdrress(es) for a Person you need to connect the relationship
to the List binding of a Repetition. Then you can display each
individual emailAddress from the array.
I haven't used D2W for years so I'm sorry if I am not putting this into
quite the right words.
Denis
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