public static void SaveCustomerAttribute <TPropType>(this Customer customer, string key, TPropType value,
ICustomerAttributeService _customerAttributeService)
{
if (customer == null || customer.Id == 0)
{
throw new ArgumentNullException("customer");
}
var props = _customerAttributeService.GetAttributeByCustomerId(customer.Id);
var attribute = new CustomerAttribute();
if (props != null &&
props.Count > 0 &&
props.FirstOrDefault(ga =>
ga.Key.Equals(key, StringComparison.InvariantCultureIgnoreCase)) != null)
{
attribute = props.FirstOrDefault(ga =>
ga.Key.Equals(key, StringComparison.InvariantCultureIgnoreCase));
attribute.Value = value.ToString();
}
else
{
attribute.CustomerId = customer.Id;
attribute.Key = key;
attribute.Value = value.ToString();
}
_customerAttributeService.SaveAttribute(attribute);
}