How do you retrieve the last month's entries from core data
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20-04-2021 - |
Question
how do I ask core data to fetch me the last 30 elements entered or alternatively the elements entered within a month of today?
Solution
To fetch a certain number of records, use qualification like [fetchRequest setFetchLimit:30]
in combination with NSPredicate instance you desired.
To retrieve elements within a range of time, you need first calculate the beginning and the end NSDate instances of the period you want, then code your predicate instance like:
NSPredicate *predicate = [NSPredicate predicateWithFormat:
@"(date >= %@) AND (date <= %@)", startDate, endDate];
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