I would start by reading an introduction book to WebObjects. Each one
deals with this topic. In case you can't find one, start with Apple's
documentation: http://developer.apple.com/documentation/DeveloperTools/WebObjects-date.html#/
/apple_ref/doc/uid/TP30000440-TP30000436-TP30000592
Although examples of the mechanics of how to create a relationship
mostly refer to using WebObjects with Xcode which of course has been
deprecated, the theory is the same.
You just need to apply the same ideas in Wolips. In Wolips, it's just
as easy, right click on one of the tables involved in the relationship
and select "New Relationship" select your fields and your done!
If you know nothing about relationships and Enterprise Objects though,
again start with either Apple's Documentation or a book. My favorite
beginner's book, Josh Marker's WebObjects 5, is out of print though
you can find it at some libraries. Can't PeachPit print on demand? But
there are others.
A good project to add to the WebObjects Wiki, a beginner's guide to
WO. I'll get started on that right away! :)
On Feb 15, 2008, at 10:17 AM, Theodore Petrosky wrote:
I am using WO for a couple of internal job lists and
such. I have limited my app to simple table
manipulations. I want to finally spend some time
understanding creating and using to many and to one
relationships. I would love to see and examine any
(simple) examples of a two table join... I am assuming
that multiple table joins are similar to a two table
join (just more tables).
Any help starting (even pointers to web pages would be
appreciated).
Ted
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