/// <inheritdoc/>
public override bool ApplyDatabaseChanges(StructuredContentHelper helper, StructuredContentChanges changes, RockContext rockContext)
{
var imageChanges = changes.GetData <ImageChangeData>();
if (imageChanges == null)
{
return(false);
}
var addedBinaryFileIds = imageChanges?.NewFileIds?.Except(imageChanges.OldFileIds)?.ToList();
var removedBinaryFileIds = imageChanges?.OldFileIds?.Except(imageChanges.NewFileIds)?.ToList();
bool needSave = false;
var binaryFileService = new BinaryFileService(rockContext);
// If there are any newly added binary files then mark them as
// permanent so they will persist in the database.
if (addedBinaryFileIds != null && addedBinaryFileIds.Count > 0)
{
var filesToAdd = binaryFileService.Queryable()
.Where(b => addedBinaryFileIds.Contains(b.Id))
.ToList();
filesToAdd.ForEach(b => b.IsTemporary = false);
needSave = true;
}
// If there are any removed binary files then mark them as temporary
// so they will be later removed by the cleanup job.
if (removedBinaryFileIds != null && removedBinaryFileIds.Count > 0)
{
var filesToRemove = binaryFileService.Queryable()
.Where(b => removedBinaryFileIds.Contains(b.Id))
.ToList();
filesToRemove.ForEach(b => b.IsTemporary = true);
needSave = true;
}
return(needSave);
}
/// <inheritdoc/>
protected override void DetectBlockChanges(ImageData newData, ImageData oldData, StructuredContentChanges changes)
{
var imageChanges = changes.GetData <ImageChangeData>();
if (imageChanges == null)
{
imageChanges = new ImageChangeData();
changes.AddOrReplaceData(imageChanges);
}
// If the new data has a file identifier then store it for later review.
if (newData?.File?.FileId != null)
{
imageChanges.NewFileIds.Add(newData.File.FileId.Value);
}
// If the old data has a file identifier then store it for alter review.
if (oldData?.File?.FileId != null)
{
imageChanges.OldFileIds.Add(oldData.File.FileId.Value);
}
}