Check string for nil value

NSMutableString · NSMutableString · commit dd7e8f76dd34 · 2014-05-20T17:58:57.000+02:00
make sure to check the string for nil value before doing the caseInsensitiveCompare, otherwise this could introduce a bug.
diff --git a/JSONModel/JSONModelTransformations/JSONValueTransformer.m b/JSONModel/JSONModelTransformations/JSONValueTransformer.m
@@ -142,8 +142,9 @@ -(NSNumber*)BOOLFromNSNumber:(NSNumber*)number
 
 -(NSNumber*)BOOLFromNSString:(NSString*)string
 {
-    if ([string caseInsensitiveCompare:@"true"] == NSOrderedSame ||
-        [string caseInsensitiveCompare:@"yes"] == NSOrderedSame) {
+    if (string != nil && 
+        ([string caseInsensitiveCompare:@"true"] == NSOrderedSame ||
+        [string caseInsensitiveCompare:@"yes"] == NSOrderedSame)) {
         return [NSNumber numberWithBool:YES];
     }
     int val = [string intValue];

Original file line number	Diff line number	Diff line change
`@@ -142,8 +142,9 @@ -(NSNumber)BOOLFromNSNumber:(NSNumber)number`
`142`	`142`
`143`	`143`	`-(NSNumber)BOOLFromNSString:(NSString)string`
`144`	`144`	`{`
`145`		`- if ([string caseInsensitiveCompare:@"true"] == NSOrderedSame \|\|`
`146`		`- [string caseInsensitiveCompare:@"yes"] == NSOrderedSame) {`
	`145`	`+ if (string != nil &&`
	`146`	`+ ([string caseInsensitiveCompare:@"true"] == NSOrderedSame \|\|`
	`147`	`+ [string caseInsensitiveCompare:@"yes"] == NSOrderedSame)) {`
`147`	`148`	`return [NSNumber numberWithBool:YES];`
`148`	`149`	`}`
`149`	`150`	`int val = [string intValue];`