/// <summary>
/// The summary of the referred to item in the data system to which the supplied Collator belongs
/// </summary>
public virtual Summary Summary(Collator coll)
{
if (Id == null || string.IsNullOrEmpty(DataType))
{
return(null);
}
if (summary == null && ItemId != null)
{
summary = coll.Get <Summary>(ItemId);
}
return(summary);
}
// Get the discounted products
public List <ProductSummary> Discounted()
{
// Get ProductSummary type objects as these are designed to be used as references to other pages.
// The first type argument to Get is the type returned, the second is the type in which you
// define the filter/query
// Rather than providing an IQueryable as a source, the content data API takes an argument which
// is a function on an IQueryable returning another IQueryable of the same type.
// Note that you can use parent types here and this will return both TileSummary and EquipmentSummary
// typed objects, running the query across every type which inherits from ProductSummary. This is very
// useful for information architecture of any complexity.
var discounted = Collator.Get <ProductSummary, ProductSummary>(iq => iq.Where(ps => ps.Discount > 0m));
return(discounted.ToList());
}