Hello,
I'm writing a roster window for our point-of-sale app. I have some methods (on
Employee) for binding to a view-based TableView (which looks a bit like a week
planner), a set of methods for each day of the week. So far I have only
implemented and debugged the Monday ones:
- (Shift *) mondayShift {return [self
shiftForDayOfWeek: [[self class] mondayName]];}
- (void) setMondayShift: (Shift *) value_
{[self willChangeValueForKey: @"shift" withWeekdayPrefix: [[self class]
mondayName]]; [self didChangeValueForKey: @"shift" withWeekdayPrefix: [[self
class] mondayName]];} // KVO hack
- (NSInteger) mondayStartHourValue {return
[self.mondayShift.startHour integerValue];}
- (void) setMondayStartHourValue: (NSUInteger) value_
{[self setShiftValue: value_ forKey: @"startHour" forWeekday:
[[self class] mondayName]];}
- (NSInteger) mondayStartMinuteValue {return
[self.mondayShift.startMinute integerValue];}
- (void) setMondayStartMinuteValue: (NSUInteger) value_
{[self setShiftValue: value_ forKey: @"startMinute" forWeekday:
[[self class] mondayName]];}
- (NSInteger) mondayEndHourValue {return
[self.mondayShift.endHour integerValue];}
- (void) setMondayEndHourValue: (NSUInteger) value_
{[self setShiftValue: value_ forKey: @"endHour"
forWeekday: [[self class] mondayName]];}
- (NSInteger) mondayEndMinuteValue {return
[self.mondayShift.endMinute integerValue];}
- (void) setMondayEndMinuteValue: (NSUInteger) value_
{[self setShiftValue: value_ forKey: @"endMinute" forWeekday:
[[self class] mondayName]];}
- (NSInteger) mondayBreakDurationValue {return
[self.mondayShift.breakDuration integerValue];}
- (void) setMondayBreakDurationValue: (NSUInteger) value_
{[self setShiftValue: value_ forKey: @"breakDuration" forWeekday:
[[self class] mondayName]];}
- (Shift *) createMondayShift {return [self
createShiftForDayOfWeekNamed: [[self class] mondayName]];}
- (void) clearMondayShift {[self
clearShiftForWeekdayNamed: [[self class] mondayName]];}
They look prettier in Xcode - one liners.
For ease of maintenance, I would like to generate these methods dynamically,
like Core Data does for its default accessors -- one set of them for each day
of the week. But neither the mighty Google nor Apple's Runtime doc tells me
how to do that. I was only able to learn how to "attach" an existing method to
a class, not how to create methods fully programmatically - "out of thin air".
I also am not able to see how to do it with macros.
Maybe I'll need some kind of third party tool - or roll my own "templating"
system, like, say, mogenerator.
Thanks for any tips. And for those so inclined, feel free to tell me what a
crappy idea the whole thing is, in general.
Cheers,
Steve
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