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53 lines
881 B
Plaintext
53 lines
881 B
Plaintext
//
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// PredicateTransformer.m
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// PredicateEditor
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//
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// Created by x on 22/05/11.
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// Copyright 2011 __MyCompanyName__. All rights reserved.
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//
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@implementation PredicateTransformer : CPValueTransformer
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{
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}
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+ (Class)transformedValueClass
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{
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return [CPString class];
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}
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+ (BOOL)allowsReverseTransformation
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{
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return YES;
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}
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- (CPString)transformedValue:(CPPredicate)predicate
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{
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if (predicate == nil || [predicate isEqual:[CPNull null]])
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return @"";
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return [predicate predicateFormat];
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}
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- (CPPredicate)reverseTransformedValue:(CPString)aValue
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{
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if (aValue == nil || [aValue isEqualToString:@""])
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return nil;
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var predicate;
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try
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{
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predicate = [CPPredicate predicateWithFormat:aValue];
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}
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catch (e)
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{
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CPLogConsole(e);
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predicate = nil;
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}
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finally
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{
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return predicate;
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}
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}
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@end |