protected virtual Func <PomonaContext, PomonaResponse> ResolveGetCollectionProperty(ResourcePropertyRoute route,
ResourceProperty property,
ResourceType resourceItemType)
{
if (this.capabilityResolver.PropertyIsMapped(property.PropertyInfo) || property.GetPropertyFormula() != null)
{
return
(pr =>
{
// Check existance of parent here, cannot differentiate between an empty collection and not found.
var parent = pr.Node.Parent;
if (parent.Route.IsSingle)
{
if (!parent.Exists)
{
throw new ResourceNotFoundException("Resource not found.");
}
}
return new PomonaResponse(
parent
.Query()
.OfTypeIfRequired(pr.Node.Route.InputType)
.SelectManyEx(x => x.Apply(property.CreateGetterExpression))
.WrapActionResult(defaultPageSize: property.ExposedAsRepository ? (int?)null : int.MaxValue));
});
}
else
{
return
(pr =>
{
var parentNode = pr.Node.Parent;
if (parentNode.Route.IsSingle)
{
return new PomonaResponse(((IEnumerable)property.GetValue(parentNode.Get())).AsQueryable());
}
return new PomonaResponse(
pr.Node.Parent
.Query()
.OfTypeIfRequired(pr.Node.Route.InputType)
.ToListDetectType()
.AsQueryable()
.SelectManyEx(x => x.Apply(property.CreateGetterExpression))
.WrapActionResult(defaultPageSize: property.ExposedAsRepository ? (int?)null : int.MaxValue));
});
}
}
private void LoadDisplayName()
{
_DisplayName = null;
if (ResourceType != null)
{
PropertyInfo ResourceProperty;
ResourceProperty = ResourceType.GetProperty(Name);
if (ResourceProperty != null)
{
object Value;
Value = ResourceProperty.GetValue(null);
if (Value != null)
{
_DisplayName = Value.ToString();
}
}
}
}