add carts

app/repos/cartsRepo/cartsRepo.go

@@ -0,0 +1,82 @@
+package cartsRepo
+
+import (
+	"git.ma-al.com/goc_daniel/b2b/app/db"
+	"git.ma-al.com/goc_daniel/b2b/app/model"
+	constdata "git.ma-al.com/goc_daniel/b2b/app/utils/const_data"
+)
+
+type UICartsRepo interface {
+	CartsAmount(user_id uint) (uint, error)
+	CreateNewCart(user_id uint) (model.CustomerCart, error)
+	UserHasCart(user_id uint, cart_id uint) (uint, error)
+	UpdateCartName(user_id uint, cart_id uint, new_name string) error
+	RetrieveCart(user_id uint, cart_id uint) (*model.CustomerCart, error)
+}
+
+type CartsRepo struct{}
+
+func New() UICartsRepo {
+	return &CartsRepo{}
+}
+
+func (repo *CartsRepo) CartsAmount(user_id uint) (uint, error) {
+	var amt uint
+
+	err := db.DB.
+		Table("b2b_customer_carts").
+		Select("COUNT(*) AS amt").
+		Where("user_id = ?", user_id).
+		Scan(&amt).
+		Error
+
+	return amt, err
+}
+
+func (repo *CartsRepo) CreateNewCart(user_id uint) (model.CustomerCart, error) {
+	var name string
+	name = constdata.DEFAULT_NEW_CART_NAME
+
+	cart := model.CustomerCart{
+		UserID: uint64(user_id),
+		Name:   &name,
+	}
+	err := db.DB.Create(&cart).Error
+
+	return cart, err
+}
+
+func (repo *CartsRepo) UserHasCart(user_id uint, cart_id uint) (uint, error) {
+	var amt uint
+
+	err := db.DB.
+		Table("b2b_customer_carts").
+		Select("COUNT(*) AS amt").
+		Where("user_id = ? AND cart_id = ?", user_id, cart_id).
+		Scan(&amt).
+		Error
+
+	return amt, err
+}
+
+func (repo *CartsRepo) UpdateCartName(user_id uint, cart_id uint, new_name string) error {
+	err := db.DB.
+		Table("b2b_customer_carts").
+		Where("user_id = ? AND cart_id = ?", user_id, cart_id).
+		Update("name", new_name).
+		Error
+
+	return err
+}
+
+func (repo *CartsRepo) RetrieveCart(user_id uint, cart_id uint) (*model.CustomerCart, error) {
+	var cart model.CustomerCart
+
+	err := db.DB.
+		Preload("b2b_carts_products").
+		Where("user_id = ? AND cart_id = ?", user_id, cart_id).
+		First(&cart).
+		Error
+
+	return &cart, err
+}