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| @@ -26,7 +26,7 @@ public class PromotionProductService { | @@ -26,7 +26,7 @@ public class PromotionProductService { | ||
| 26 | result.append(pp.getPromotionId()).append(","); | 26 | result.append(pp.getPromotionId()).append(","); |
| 27 | } | 27 | } |
| 28 | if(result.length()<1){ | 28 | if(result.length()<1){ |
| 29 | - return ""; | 29 | + return null; |
| 30 | } | 30 | } |
| 31 | return result.substring(0,result.length()-1); | 31 | return result.substring(0,result.length()-1); |
| 32 | } | 32 | } |
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