space-ios/iOSClient/Library/XLForm/XL/Helpers/NSPredicate+XLFormAdditions.m

//
//  NSPredicate+XLFormAdditions.m
//  XLForm ( https://github.com/xmartlabs/XLForm )
//
//  Copyright (c) 2015 Xmartlabs ( http://xmartlabs.com )
//
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#import "NSPredicate+XLFormAdditions.h"
#import "NSExpression+XLFormAdditions.h"

@implementation NSPredicate (XLFormAdditions)


-(NSMutableArray*) getPredicateVars{
    NSMutableArray* ret = [[NSMutableArray alloc] init];
    if ([self isKindOfClass:([NSCompoundPredicate class])]) {
        for (id object in ((NSCompoundPredicate*) self).subpredicates ) {
            [ret addObjectsFromArray:[object getPredicateVars]];
        }
    }
    else if ([self isKindOfClass:([NSComparisonPredicate class])]){
        [ret addObjectsFromArray:[((NSComparisonPredicate*) self).leftExpression getExpressionVars]];
        [ret addObjectsFromArray:[((NSComparisonPredicate*) self).rightExpression getExpressionVars]];
    }
    return ret;
}

@end