From: Chuck Hill <[email protected]>
Subject: Re: help with a relationship...
To: "Theodore Petrosky" <[email protected]>
Cc: [email protected]
Date: Wednesday, May 6, 2009, 12:47 PM
On May 6, 2009, at 8:08 AM, Theodore Petrosky wrote:
I have an object -- Contact -- the has a relationship
to a Category.
each contact one category. when I create a new
contact, I read the categories from the backend and apply
the first (zeroth) category (my generic category)
public void createNewContact() {
NSLog.out.appendln("top of createNewContact
+++++++++++++++++++++++++++++");
newContact = new
Contact();
Unrelated, but that line above is not needed with the next
line:
newContact =
(Contact)EOUtilities.createAndInsertInstance(contactEO,
"Contact");
contactEO is an EditingContext, not an EO, right?
newContact.setContactCategory(contactCategoryList.objectAtIndex(0));
NSLog.out.appendln("newContact.setSubCategory+++ = " +
newContact.subCategory());
newContact.setUser(repList.objectAtIndex(0));
}
This works beautifully. I get a new contact. If I
actually type something in the contact name field and
saveChanges() to the EO everything is happy.
well they want to add subCategories. I create the
entity and have a relationship between subCategory and
Contacts as well as subCategory and Category.
each contact one subCategory
each Category one subCategory
but obviously each Category many subCategories (same
for Contacts).
I can not seem to get the relation to work with the
subCategory... I need to create a new contact so I add a
line to the createNewContact:
newContact.setSubCategory(subCategoryList.objectAtIndex(0));
obviously subCategoryList is an array of subCategories
that I read in exactly the same as the categoryList.
so when I try to save the EO I get an error:
- ValidationException e = Please provide a
<b>Sub CategoryID</b>.
So I added some NSLogs around the saveChanges() and I
see:
NSLog.out.appendln("inside try
newContact.subCategory+++ = " + newContact.subCategory());
contactEO.saveChanges();
if I read this correctly, the newContact has a
subCategory with a primary key "1", but I still get this:
- ValidationException e = Please provide a
<b>Sub CategoryID</b>.
I am at a loss.... I have added so many NSLogs to try
to see the flow and it 'should' work... (I think) but I hate
shoulding on myself....
Ted
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