private static void WriteNavigationLinks(ODataWriter writer, object element, Uri parentEntryUri, IEdmEntityType parentEntityType, IEdmModel model, ODataVersion targetVersion, IEnumerable <string> expandedNavigationProperties)
{
foreach (var navigationProperty in parentEntityType.NavigationProperties())
{
IEdmTypeReference propertyTypeReference = navigationProperty.Type;
bool isCollection = navigationProperty.Type.IsCollection();
var navigationLink = new ODataNavigationLink
{
Url = new Uri(parentEntryUri, navigationProperty.Name),
IsCollection = isCollection,
Name = navigationProperty.Name,
};
writer.WriteStart(navigationLink);
if (expandedNavigationProperties.Contains(navigationProperty.Name))
{
var propertyValue = DataContext.GetPropertyValue(element, navigationProperty.Name);
if (propertyValue != null)
{
var propertyEntityType = propertyTypeReference.Definition as IEdmEntityType;
IEdmEntitySet targetEntitySet = model.EntityContainer.EntitySets().Single(s => s.EntityType() == propertyEntityType);
if (isCollection)
{
WriteFeed(writer, propertyValue as IEnumerable, targetEntitySet, model, targetVersion, Enumerable.Empty <string>());
}
else
{
WriteEntry(writer, propertyValue, targetEntitySet, model, targetVersion, Enumerable.Empty <string>());
}
}
}
writer.WriteEnd();
}
}
/// <summary>
/// Converts a value from the data store into an ODataProperty.
/// </summary>
/// <param name="instance">The item from the data store.</param>
/// <param name="propertyName">The name of the property to convert.</param>
/// <returns>The converted ODataProperty.</returns>
public static ODataProperty ConvertToODataProperty(object instance, string propertyName)
{
object value = DataContext.GetPropertyValue(instance, propertyName);
return(CreateODataProperty(value, propertyName));
}