优化交易创建流程，客户管理新增折扣与来源字段及功能

web/queries/trade.gen.go

@@ -103,6 +103,11 @@ func newTrade(db *gorm.DB, opts ...gen.DOOption) trade {
 				},
 			},
 		},
+		Discount: struct {
+			field.RelationField
+		}{
+			RelationField: field.NewRelation("User.Discount", "models.ProductDiscount"),
+		},
 		Roles: struct {
 			field.RelationField
 			Permissions struct {
@@ -257,6 +262,9 @@ type tradeBelongsToUser struct {
 			}
 		}
 	}
+	Discount struct {
+		field.RelationField
+	}
 	Roles struct {
 		field.RelationField
 		Permissions struct {