package entities import ( "time" "github.com/google/uuid" "gorm.io/gorm" ) type PaymentOrderItem struct { ID uuid.UUID `gorm:"type:uuid;primary_key;default:gen_random_uuid()" json:"id"` PaymentID uuid.UUID `gorm:"type:uuid;not null;index" json:"payment_id"` OrderItemID uuid.UUID `gorm:"type:uuid;not null;index" json:"order_item_id"` Quantity int `gorm:"not null;default:0" json:"quantity"` // Quantity paid for this specific payment Amount float64 `gorm:"type:decimal(10,2);not null" json:"amount"` CreatedAt time.Time `gorm:"autoCreateTime" json:"created_at"` UpdatedAt time.Time `gorm:"autoUpdateTime" json:"updated_at"` Payment Payment `gorm:"foreignKey:PaymentID" json:"payment,omitempty"` OrderItem OrderItem `gorm:"foreignKey:OrderItemID" json:"order_item,omitempty"` } func (poi *PaymentOrderItem) BeforeCreate(tx *gorm.DB) error { if poi.ID == uuid.Nil { poi.ID = uuid.New() } return nil } func (PaymentOrderItem) TableName() string { return "payment_order_items" }