/*

 Copyright (C) 2015 Apple Inc. All Rights Reserved.

  See LICENSE.txt for this sample’s licensing information

  Abstract:

  CaseInsensitivePredicateTemplate is a subclass of 

   NSPredicateEditorRowTemplate that will generate case insensitive 

   comparison predicates; it can be used as the custom subclass of an 

   NSPredicateEditorRowTemplate in Interface Builder. 

 */

#import "CaseInsensitivePredicateTemplate.h"

@implementation CaseInsensitivePredicateTemplate

- (NSPredicate *)predicateWithSubpredicates:(NSArray *)subpredicates {

    // we only make NSComparisonPredicates

    NSComparisonPredicate *predicate = (NSComparisonPredicate *)[super predicateWithSubpredicates:subpredicates];

    // construct an identical predicate, but add the NSCaseInsensitivePredicateOption flag

    return [NSComparisonPredicate predicateWithLeftExpression:predicate.leftExpression

                                              rightExpression:predicate.rightExpression

                                                     modifier:predicate.comparisonPredicateModifier

                                                         type:predicate.predicateOperatorType

                                                      options:predicate.options | NSCaseInsensitivePredicateOption];

}

@end