/// <summary>
/// Processes the PreSave event when this value is for
/// <see cref="Field.Types.StructureContentEditorFieldType"/>. Detect any
/// changes to the internal content and apply them to the database as well.
/// </summary>
/// <param name="dbContext">The database context.</param>
/// <param name="entry">The entry.</param>
private void PreSaveStructuredContent(Rock.Data.DbContext dbContext, DbEntityEntry entry)
{
if (dbContext is RockContext rockContext)
{
string content = entry.State == EntityState.Added || entry.State == EntityState.Modified ? Value : string.Empty;
string oldContent = entry.State == EntityState.Modified ? entry.OriginalValues["Value"] as string : string.Empty;
var helper = new StructuredContentHelper(content);
var changes = helper.DetectChanges(oldContent);
helper.ApplyDatabaseChanges(changes, rockContext);
}
}
/// <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/>
public override string GetHtmlValue(string value, Dictionary <string, string> configurationValues)
{
var helper = new StructuredContentHelper(value);
return(helper.Render());
}
