/// <summary>
/// Projects the source collection using the passed query parameters.
/// </summary>
/// <param name="source">The source items to filter.</param>
/// <param name="filter">The projection to apply.</param>
/// <typeparam name="T">The <see cref="Type" /> of items in the source collection.</typeparam>
/// <returns>A projected enumeration of the source collection.</returns>
public static IQueryable <object> Project <T>(this IQueryable <T> source, IModelFilter <T> filter)
{
return(filter == null?source.OfType <object>().AsQueryable() : filter.Project(source));
}
