public IList <OrderProduct> GetProducts(DiscountParameter parameter)
{
if (string.IsNullOrEmpty(FilterExpression))
{
FilterExpression = "p => true";
}
var query = parameter.ProductList.AsQueryable();
return(query.Where(FilterExpression).ToList());
}
public bool Validate(DiscountParameter parameter, CoreContext context)
{
var plist = GetProducts(parameter);
switch (Property)
{
case "TotalFee":
{
var expressionInput = (decimal)plist.Sum(p => p.Counter * p.SalePrice);
ParameterExpression paramExp = Expression.Parameter(typeof(decimal));
ConstantExpression constantExpression = Expression.Constant(Convert.ToDecimal(Value));
return(OnValidate <decimal>(paramExp, constantExpression, expressionInput));
}
case "TotalCount":
{
decimal expressionInput = plist.Sum(p => p.Counter);
ParameterExpression paramExp = Expression.Parameter(typeof(decimal));
ConstantExpression constantExpression = Expression.Constant(Convert.ToDecimal(Value));
return(OnValidate <decimal>(paramExp, constantExpression, expressionInput));
}
}
return(false);
}
public bool Validate(DiscountParameter parameter, CoreContext context)
{
return(ConditionValidator.Validate(parameter, context));
}
public IList <OrderProduct> GetProducts(DiscountParameter parameter)
{
ProductValidator productValidator = ConditionValidator as ProductValidator;
return(productValidator.GetProducts(parameter));
}