public static void DiscardChanges <T>(this VersionContainer <T> container) where T : VersionedItem
{
if (container.Current.PublishStatus == PublishStatus.Updated)
{
container.Current = container.Published?.Clone() as T;
}
}
// Publish status defaults to draft, version 1 for new entities
public static void Init <T>(this VersionContainer <T> container) where T : VersionedItem, new()
{
container.Current = new T
{
PublishStatus = PublishStatus.Draft,
Version = 1
};
}
// Archive will remove published version
public static void Archive <T>(this VersionContainer <T> container) where T : VersionedItem
{
container.History = container.History ?? new List <T>();
container.Current.PublishStatus = PublishStatus.Archived;
container.History.Add(container.Current);
container.Published = null;
}
public static void Publish <T>(this VersionContainer <T> container) where T : VersionedItem
{
container.History = container.History ?? new List <T>();
container.Current.PublishStatus = PublishStatus.Approved;
container.Published = container.Current.Clone() as T;
container.History.Add(container.Published);
}
public static void PublishVersion <T>(this VersionContainer <T> container, int version) where T : VersionedItem
{
container.History = container.History ?? new List <T>();
var previous = container.History.FirstOrDefault(x => x.Version == version);
if (previous != null)
{
container.Current = previous.Clone() as T;
}
container.Publish();
}
public static T Save <T>(this VersionContainer <T> container, T item) where T : VersionedItem
{
container.History = container.History ?? new List <T>();
int maxVersion = container.History.Count == 0 ? 0 : container.History.Max(x => x.Version); // If publish previous version current version may not be highest
if (container.Current != null)
{
switch (container.Current.PublishStatus)
{
case PublishStatus.Draft:
item.PublishStatus = PublishStatus.Draft;
break;
case PublishStatus.Approved:
if (item.PublishStatus == PublishStatus.Draft)
{
break;
}
else
{
item.PublishStatus = PublishStatus.Updated;
}
break;
default:
item.PublishStatus = PublishStatus.Updated;
break;
}
}
else
{
item.PublishStatus = PublishStatus.Draft;
}
item.Version = maxVersion + 1;
container.Current = item;
container.History.Add(container.Current);
item.Date = DateTimeOffset.Now.ToLocalTime();
return(container.Current);
}
