Draw up the following model on a piece of paper: We have three entities: Department, Employee, and EmployeeCar. Each of them has the 'name' attribute. Department has the to-many 'employees' relationship to Employee. Its inverse is, naturally, the to-one 'department' relationship in Employee. Employee has a to-one 'employeeCar' relationship to EmployeeCar. Its inverse is the to-many 'employees' relationship in EmployeeCar. This reflects the reality that a single car can be assigned to more than one employee, but a given employee does only have one car assigned to him.
NOW HERE IS THE QUESTION: How can I make Core Data: **** fetch all departments that have an employee whose name starts with 'Jo' and whose assigned car has the name of 'Volvo' **** Can Core Data even make such fetches? Can it be done without ALL,ANY? I ask because I might want to combine many such conditions, making it impossible to do with the SQLite storage option. Maybe I can just simply forget the SQLite storage for this? What are the alternatives? Am I doomed to work with the other slower storages? And note that I do indeed have to have it inside a single predicate because I have an NSArrayController of Department objects, and after having made the correct predicate (for which I need your help) I plan to set the array controller's fetch predicate to that predicate. _________________________________________________________________ Show them the way! Add maps and directions to your party invites. http://www.microsoft.com/windows/windowslive/products/events.aspx_______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
