public Result <CartModel> AddProductVariantToCart(string productId, string variantId, decimal quantity)
{
var model = this.CartManager.GetCurrentCart(this.StorefrontContext.ShopName, this.VisitorContext.ContactId);
var cartLineArgument = new CartLineArgument
{
CatalogName = this.StorefrontContext.CatalogName,
ProductId = productId,
Quantity = quantity,
VariantId = variantId
};
var cart = this.CartManager.AddLineItemsToCart(
model.Result,
new[]
{
cartLineArgument
},
null,
null);
var result = this.GetCart(cart.ServiceProviderResult, cart.Result);
return(result);
}
public Result <CartModel> UpdateProductVariantQuantity(string productId, string variantId, decimal quantity)
{
var model = this.CartManager.GetCurrentCart(this.StorefrontContext.ShopName, this.VisitorContext.ContactId);
var cartLine = model.Result.Lines.FirstOrDefault(
x =>
{
var current = x.Product as CommerceCartProduct;
return((current?.ProductId == productId) && (current?.ProductVariantId == variantId));
});
if (cartLine != null)
{
if (quantity <= 0)
{
return(this.RemoveProductVariantFromCart(cartLine.ExternalCartLineId));
}
var cartLineArgument = new CartLineArgument
{
CatalogName = this.StorefrontContext.CatalogName,
ProductId = productId,
Quantity = quantity,
VariantId = variantId
};
var cart = this.CartManager.UpdateLineItemsInCart(
model.Result,
new[]
{
cartLineArgument
},
null,
null);
var result = this.GetCart(cart.ServiceProviderResult, cart.Result);
return(result);
}
if (quantity > 0)
{
return(this.AddProductVariantToCart(productId, variantId, quantity));
}
return(null);
}