/// <summary>
/// 增加一个销售的记录表
/// </summary>
/// <param name="sale"></param>
/// <returns></returns>
public async Task <bool> AddSale(Sale sale)
{
if (sale != null)
{
var product = await _productRepository.GetModelAsync(u => u.Id == sale.ProductId && u.Quantity >= sale.Quantity);
if (product != null)
{
var model = await _saleRepository.AddModel(sale);
if (model > 0)
{
product.Quantity -= sale.Quantity;
var flag = await _productRepository.Modify(product);
if (flag > 1)
{
return(true);
}
}
}
}
return(false);
}
