/// <summary>
/// Invoked via reflection.
/// </summary>
/// <param name="mappings"></param>
public DataTypeRelativeRouteToPredicateMapper(PropertyUrlMapping[] mappings)
{
_mappings = mappings;
var keyProperties = typeof(TDataType).GetKeyProperties();
if (keyProperties.Count == 1)
{
var keyProperty = keyProperties[0];
var keyValueProviderType =
typeof(IRelativeRouteValueProvider <>).MakeGenericType(keyProperty.PropertyType);
int pathSegmentsToIgnore = 0;
for (int i = 0; i < _mappings.Length; i++)
{
var propertyMapping = _mappings[i];
if (propertyMapping.Property == keyProperty &&
keyValueProviderType.IsInstanceOfType(propertyMapping.Mapper))
{
_keyMapping = propertyMapping;
_keyFieldUrlSegmentOffset = pathSegmentsToIgnore;
}
pathSegmentsToIgnore += propertyMapping.Mapper.PathSegmentsCount;
}
}
}
private IData TryDataByKeyProperty(PropertyUrlMapping propertyMapping, RelativeRoute keyRoutePart)
{
var method = StaticReflection.GetGenericMethodInfo(() => TryDataByKeyProperty <Guid>(null, null));
var genericMethod = method.MakeGenericMethod(propertyMapping.Property.PropertyType);
return(genericMethod.Invoke(this, new object[] { propertyMapping, keyRoutePart }) as TDataType);
}
private TDataType TryDataByKeyProperty <TKeyType>(PropertyUrlMapping propertyMapping, RelativeRoute keyRoutePart)
{
var valueProvider = propertyMapping.Mapper as IRelativeRouteValueProvider <TKeyType>;
if (valueProvider == null)
{
return(null);
}
TKeyType key;
if (!valueProvider.TryGetValue(keyRoutePart, out key))
{
return(null);
}
return(DataFacade.TryGetDataByUniqueKey(typeof(TDataType), key) as TDataType);
}