优化表结构，重构模型，重新实现基于白银网关的提取节点流程

web/queries/coupon.gen.go

@@ -28,16 +28,16 @@ func newCoupon(db *gorm.DB, opts ...gen.DOOption) coupon {
 	tableName := _coupon.couponDo.TableName()
 	_coupon.ALL = field.NewAsterisk(tableName)
 	_coupon.ID = field.NewInt32(tableName, "id")
+	_coupon.CreatedAt = field.NewTime(tableName, "created_at")
+	_coupon.UpdatedAt = field.NewTime(tableName, "updated_at")
+	_coupon.DeletedAt = field.NewField(tableName, "deleted_at")
 	_coupon.UserID = field.NewInt32(tableName, "user_id")
 	_coupon.Code = field.NewString(tableName, "code")
 	_coupon.Remark = field.NewString(tableName, "remark")
 	_coupon.Amount = field.NewField(tableName, "amount")
 	_coupon.MinAmount = field.NewField(tableName, "min_amount")
-	_coupon.Status = field.NewInt32(tableName, "status")
-	_coupon.ExpireAt = field.NewField(tableName, "expire_at")
-	_coupon.CreatedAt = field.NewField(tableName, "created_at")
-	_coupon.UpdatedAt = field.NewField(tableName, "updated_at")
-	_coupon.DeletedAt = field.NewField(tableName, "deleted_at")
+	_coupon.Status = field.NewInt(tableName, "status")
+	_coupon.ExpireAt = field.NewTime(tableName, "expire_at")
 
 	_coupon.fillFieldMap()
 
@@ -48,17 +48,17 @@ type coupon struct {
 	couponDo
 
 	ALL       field.Asterisk
-	ID        field.Int32  // 优惠券ID
-	UserID    field.Int32  // 用户ID
-	Code      field.String // 优惠券代码
-	Remark    field.String // 优惠券备注
-	Amount    field.Field  // 优惠券金额
-	MinAmount field.Field  // 最低消费金额
-	Status    field.Int32  // 优惠券状态：0-未使用，1-已使用，2-已过期
-	ExpireAt  field.Field  // 过期时间
-	CreatedAt field.Field  // 创建时间
-	UpdatedAt field.Field  // 更新时间
-	DeletedAt field.Field  // 删除时间
+	ID        field.Int32
+	CreatedAt field.Time
+	UpdatedAt field.Time
+	DeletedAt field.Field
+	UserID    field.Int32
+	Code      field.String
+	Remark    field.String
+	Amount    field.Field
+	MinAmount field.Field
+	Status    field.Int
+	ExpireAt  field.Time
 
 	fieldMap map[string]field.Expr
 }
@@ -76,16 +76,16 @@ func (c coupon) As(alias string) *coupon {
 func (c *coupon) updateTableName(table string) *coupon {
 	c.ALL = field.NewAsterisk(table)
 	c.ID = field.NewInt32(table, "id")
+	c.CreatedAt = field.NewTime(table, "created_at")
+	c.UpdatedAt = field.NewTime(table, "updated_at")
+	c.DeletedAt = field.NewField(table, "deleted_at")
 	c.UserID = field.NewInt32(table, "user_id")
 	c.Code = field.NewString(table, "code")
 	c.Remark = field.NewString(table, "remark")
 	c.Amount = field.NewField(table, "amount")
 	c.MinAmount = field.NewField(table, "min_amount")
-	c.Status = field.NewInt32(table, "status")
-	c.ExpireAt = field.NewField(table, "expire_at")
-	c.CreatedAt = field.NewField(table, "created_at")
-	c.UpdatedAt = field.NewField(table, "updated_at")
-	c.DeletedAt = field.NewField(table, "deleted_at")
+	c.Status = field.NewInt(table, "status")
+	c.ExpireAt = field.NewTime(table, "expire_at")
 
 	c.fillFieldMap()
 
@@ -104,6 +104,9 @@ func (c *coupon) GetFieldByName(fieldName string) (field.OrderExpr, bool) {
 func (c *coupon) fillFieldMap() {
 	c.fieldMap = make(map[string]field.Expr, 11)
 	c.fieldMap["id"] = c.ID
+	c.fieldMap["created_at"] = c.CreatedAt
+	c.fieldMap["updated_at"] = c.UpdatedAt
+	c.fieldMap["deleted_at"] = c.DeletedAt
 	c.fieldMap["user_id"] = c.UserID
 	c.fieldMap["code"] = c.Code
 	c.fieldMap["remark"] = c.Remark
@@ -111,9 +114,6 @@ func (c *coupon) fillFieldMap() {
 	c.fieldMap["min_amount"] = c.MinAmount
 	c.fieldMap["status"] = c.Status
 	c.fieldMap["expire_at"] = c.ExpireAt
-	c.fieldMap["created_at"] = c.CreatedAt
-	c.fieldMap["updated_at"] = c.UpdatedAt
-	c.fieldMap["deleted_at"] = c.DeletedAt
 }
 
 func (c coupon) clone(db *gorm.DB) coupon {