I have started to experiment with the core data framework and have run
immediately into a problem.
I have modelled a data entity "Person" and setup a window in IB which
displays all parameters of a single data record. Then I have added a
button which calls the add: method of the PersonController Object, IB
has created.
When I execute the program and click on the add button, the controller
creates a new data record and I can enter the attributes. If I press
again the button, the add method is called, but no new record is
created.
I have subclassed the controller object and learned that the canAdd:
method returns false after I press the button the second time.
What have I done wrong? Which action does the controller expect?
Any suggestions?
Michael
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