/// <summary>
/// Saves the current <see cref="IBlogMLCommonObject"/> attributes to the specified <see cref="XmlWriter"/>.
/// </summary>
/// <param name="source">A object that implements the <see cref="IBlogMLCommonObject"/> interface to extract BlogML common object information from.</param>
/// <param name="writer">The <see cref="XmlWriter"/> to which the <paramref name="source"/> information will be written.</param>
/// <exception cref="ArgumentNullException">The <paramref name="source"/> is a null reference (Nothing in Visual Basic).</exception>
/// <exception cref="ArgumentNullException">The <paramref name="writer"/> is a null reference (Nothing in Visual Basic).</exception>
public static void WriteCommonObjectAttributes(IBlogMLCommonObject source, XmlWriter writer)
{
Guard.ArgumentNotNull(source, "source");
Guard.ArgumentNotNull(writer, "writer");
if (!String.IsNullOrEmpty(source.Id))
{
writer.WriteAttributeString("id", source.Id);
}
if (source.CreatedOn != DateTime.MinValue)
{
writer.WriteAttributeString("date-created", SyndicationDateTimeUtility.ToRfc3339DateTime(source.CreatedOn));
}
if (source.LastModifiedOn != DateTime.MinValue)
{
writer.WriteAttributeString("date-modified", SyndicationDateTimeUtility.ToRfc3339DateTime(source.LastModifiedOn));
}
if (source.ApprovalStatus != BlogMLApprovalStatus.None)
{
writer.WriteAttributeString("approved", BlogMLUtility.ApprovalStatusAsString(source.ApprovalStatus));
}
}