Essential Books

NSPredicate with AND OR and NOT condition

suggest change

Conditional predicate will be cleaner and safer by using the NSCompoundPredicate class which provides basic boolean operators for the given predicates.

Objective-c

AND - Condition

NSPredicate *predicate = [NSPredicate predicateWithFormat:@“samplePredicate”]; NSPredicate *anotherPredicate = [NSPredicate predicateWithFormat:@“anotherPredicate”]; NSPredicate *combinedPredicate = [NSCompoundPredicate andPredicateWithSubpredicates: @[predicate,anotherPredicate]];

OR - Condition 

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"samplePredicate"];
 NSPredicate *anotherPredicate = [NSPredicate predicateWithFormat:@"anotherPredicate"];
 NSPredicate *combinedPredicate = [NSCompoundPredicate orPredicateWithSubpredicates: @[predicate,anotherPredicate]];

NOT - Condition 

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"samplePredicate"];
 NSPredicate *anotherPredicate = [NSPredicate predicateWithFormat:@"anotherPredicate"];
 NSPredicate *combinedPredicate = [NSCompoundPredicate notPredicateWithSubpredicate: @[predicate,anotherPredicate]];
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NSPredicate:
*NSPredicate
*Form validation using NSPredicate
*Creating an NSPredicate Using predicateWithBlock
*Creating an NSPredicate Using predicateWithFormat
*Creating an NSPredicate with Substitution Variables
*Using NSPredicate to Filter an Array
*NSPredicate with AND OR and NOT condition
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