What should we use in the NSPredicate for searching a field which is blank but not necessarily nil. We can find records when we are searching for an exact value but not when the field value is a blank string.
Our code is below for the function where we are searching timesheet entries. The field that is giving us the problem is the Out_Time field. We are needing to return the list of entries where the Out_Time is still blank.
Normally in a sql statement we would have either used a trim() or a length() function on that field.