print to find bug

models/workflow/workflow_mongo_accessor.go

@@ -144,6 +144,7 @@ func (wfa *workflowMongoAccessor) book(id string, realData *Workflow, execs []*w
 						ResourceID: dc_id, // set the datacenter id "WHERE"
 						Executions: execs, // set the executions to book "WHAT"
 					}).Serialize(), wfa.Caller)
+				fmt.Println("BOOKING", err)
 				if err != nil {
 					return err
 				}