Documentation Missing

Discussion in 'iOS Programming' started by teguh123, Apr 7, 2011.

  1. macrumors member

    Mar 22, 2011
    I search for Creating a Managed Object Model with Xcode

    The only thing left is
  2. macrumors demi-god

    Apr 20, 2009
  3. ClutchThese, Apr 7, 2011
    Last edited by a moderator: Apr 8, 2011

    macrumors 65816


    Jun 25, 2010
    Alexandria, VA
    if you still have trouble finding what you're looking for, go to

    That's your best bet for reference material pertaining to Xcode. Good luck.
  4. thread starter macrumors member

    Mar 22, 2011
    One Way Relationship in Core Data

    Every restaurant must have Latitude and Longitude. However, every LatitudeLongitude object must not have "a restaurant"

    So I have a one way relationship and generate a compiler warning.

    What's the catch?

    Should I use fetchRelationship instead? But what the hell is fetchRelationship?

    Why is it one way? Why does it have predicate? Why it is called fetch? I read the documentation and doesn't seem to get what it really is.
  5. macrumors 6502


    Jan 21, 2011
    You're using Core Data, right?

    If you have a read about it it will say that Core Data really wants you to have a reverse relationship.

    So if your Restaurant has a Location object (1-1) Then your Location Object need a Restaurant object (1-1) to point back to.

    Core data uses this to ensure it won't end up with orphans.

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