fix chaincode_meidi.go

examples/chaincode/go/chaincode_meidi/chaincode_meidi.go

@@ -162,7 +162,7 @@ func (t *SimpleChaincode) createBillBatch(stub shim.ChaincodeStubInterface, args
     var billInfos []Bill
     err := json.Unmarshal([]byte(args[0]), &billInfos)
     if err != nil {
-        fmt.Println("getBillById: Unmarshal fail:", err.Error())
+        fmt.Println("createBillBatch: Unmarshal fail:", err.Error())
         return shim.Error("createBillBatch(): json.Unmarshal fail:" + err.Error())
     }
 
@@ -245,7 +245,7 @@ func (t *SimpleChaincode) queryBill(stub shim.ChaincodeStubInterface, args []str
 
     _, billBytes, err := getBillById(stub, args[0])
     if err != nil {
-        fmt.Println("getBillById fail:", err.Error())
+        fmt.Println("queryBill fail:", err.Error())
         return shim.Error("queryBill(): Fail to get Bill" + err.Error())
     }
 
@@ -273,7 +273,6 @@ func (t *SimpleChaincode) queryTransaction(stub shim.ChaincodeStubInterface, arg
 
 // Write Bill info into the fabric
 func writeBill(stub shim.ChaincodeStubInterface, bill Bill) error {
-
     billBytes, err := json.Marshal(&bill)
     if err != nil {
         fmt.Println("writeBill: Marshal fail:", err.Error())
@@ -314,11 +313,13 @@ func getBillById(stub shim.ChaincodeStubInterface, id string) (Bill, []byte, err
     if err != nil {
         fmt.Println("getBillById: GetState fail:", err.Error())
         fmt.Println("Error retrieving cpBytes")
+        return bill, nil, errors.New("getBillById GetState GetState Error:" + err.Error())
     }
     err = json.Unmarshal(billBytes, &bill)
     if err != nil {
         fmt.Println("getBillById: Unmarshal fail:", err.Error())
         fmt.Println("Error unmarshalling Bill")
+        //return bill, nil, errors.New("getBillById Unmarshal Error:" + err.Error())
     }
     return bill, billBytes, nil
 }