/// <summary>
/// Update the specified article. Increment the version if required.
/// </summary>
/// <param name="article"></param>
/// <param name="backupVersion">If true the previous article version is saved as a backup in the VersionedArticle and the current version is incremented.</param>
public override void UpdateArticle(Article article, bool backupVersion)
{
using (TransactionScope transaction = new TransactionScope(mConfiguration))
{
ArticleDataStore dataStore = new ArticleDataStore(transaction);
VersionedArticle versionedArticle = null;
if (backupVersion)
{
//Retrive the previous version (before saving the new instance) and save a versioned row
Article prevVersion = dataStore.FindByKey(article.Id);
if (prevVersion == null)
{
throw new ArticleNotFoundException(article.Id);
}
versionedArticle = new VersionedArticle(prevVersion);
VersionedArticleDataStore versionedStore = new VersionedArticleDataStore(transaction);
versionedStore.Insert(versionedArticle);
//Increment the current article version
article.IncrementVersion();
}
//flag the entity to be updated and attach the entity to the db
// I must use InsertOrUpdateCopy because if backupVersion = true there is already a
// persistent entity in the session and I must copy the values to this instance. The Update method in this case throw an exception
article = dataStore.InsertOrUpdateCopy(article);
transaction.Commit();
}
}
public override Article GetArticle(string id)
{
using (TransactionScope transaction = new TransactionScope(mConfiguration))
{
ArticleDataStore dataStore = new ArticleDataStore(transaction);
Article article = dataStore.FindByKey(id);
if (article == null)
{
throw new ArticleNotFoundException(id);
}
return(article);
}
}