predicateWithColumn value of NULL not possible?

Question

predicateWithColumn value of NULL not possible?

DougPuchalski opened this issue 12 years ago · comments

Douglas Puchalski commented 12 years ago

Is there not a way to find records that have NULL values in a column?

Tito Ciuro · Answer 1 · Thu Jan 10 2013 21:16:31 GMT+0800 (China Standard Time)

Hi Doug, while it's possible to store NSNulls, it's not possible yet to query for them using either NSFNanoPredicate or NSFNanoSearch.

I have a fix that I'll commit shortly. Thanks for reporting it!

Tito Ciuro · Answer 2 · Fri Jan 11 2013 05:39:13 GMT+0800 (China Standard Time)

Additional fixes:

#62
#67

Douglas Puchalski · Answer 3 · Sat Jan 12 2013 04:45:55 GMT+0800 (China Standard Time)

Thanks for jumping on this!

Douglas Puchalski · Answer 4 · Fri Jan 25 2013 23:48:43 GMT+0800 (China Standard Time)

RubyMotion collapses the values of nil and NSNull.null, which breaks the assertions in initWithColumn:(NSFTableColumnType)type matching:(NSFMatchType)matching value:(id)aValue and the first if in + (NSString *)_querySegmentForAttributeColumnWithValue:(id)anAttributeValue matching:(NSFMatchType)match valueColumnWithValue:(id)aValue.

Can you explain the reason for distinguishing the values nil and NSNull.null here?

Tito Ciuro · Answer 5 · Mon Jan 28 2013 11:11:54 GMT+0800 (China Standard Time)

Please don't comment on closed issues. Open a new one instead, so I can submit a potential fix/comment to that issue without mixing issues. Thanks.

Douglas Puchalski · Answer 6 · Mon Jan 28 2013 12:38:55 GMT+0800 (China Standard Time)

Understood. Opened #70.