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RE: Displaying Primary Keys
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RE: Displaying Primary Keys


  • Subject: RE: Displaying Primary Keys
  • From: "Jonathan Fleming" <email@hidden>
  • Date: Fri, 26 Dec 2003 17:19:05 +0000

Hi Drew,

best place to use this is from your custom java class( your business logic)

Try this,

import com.apple.yellow.eoaccess.*; // IMPORTANT, required for this method to work

   public Number desiredPrimaryKey() {
     NSDictionary keyDict = EOUtilities.primaryKeyForObject(
        this.editingContext(), this);
      return (Number)keyDict.objectForKey("desiredPrimaryKey");
   }

You might need to use "valueForKey" and not "objectForKey"???

Jonathan :^)


From: Drew Thoeni <email@hidden>
To: email@hidden
Subject: Displaying Primary Keys
Date: Fri, 26 Dec 2003 08:54:22 -0500

public void newbieProblem() {
I read (and have found) that if I want to properly used object references between enterprise objects that I must not include the primary key in the class (i.e., I click the diamond off in EO Modeler). However, there are times I want to display the primary key. For example, in administration pages, I like to display the userID. Or when editing code tables, the primary key would be useful to display.
}


public Answer newbieQuestion() {
What is the proper way to do this? Any references out there you suggest.
}
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