public void Compile(IRuleDefinitionContext context)
{
foreach (var rule in _rules)
{
rule.Compile(context);
}
}
public override void Define(IRuleDefinitionContext ruleContext)
{
//var newOrders = ruleContext.OnNew<Order>();
//var updatedOrders = ruleContext.OnChange<Order>().Select(orderFact => (orderFact.Context, orderFact.Fact));
_disposable = ruleContext.OnNew <Order>()
.Where(orderFact => orderFact.Fact.IsOpen)
.Where(orderFact => !orderFact.Fact.IsDiscounted)
.Subscribe(orderFact =>
{
var context = orderFact.Context;
var order = orderFact.Fact;
var customer = context.Get <Customer>(order.Customer.Id);
if (customer.IsPreferred)
{
order.ApplyDiscount(10.0);
context.Update(order, nameof(Order.PercentDiscount));
}
});
}
public abstract void Define(IRuleDefinitionContext context);
public void Compile(IRuleDefinitionContext context)
{
Define(context);
}