/// <summary>
/// Adds or updates the given model in the database
/// depending on its state.
/// </summary>
/// <param name="content">The content to save</param>
public async Task SaveAsync(MediaContent content)
{
if (!App.MediaTypes.IsSupported(content.Filename))
{
throw new ValidationException("Filetype not supported.");
}
Media model = null;
if (content.Id.HasValue)
{
model = await GetByIdAsync(content.Id.Value).ConfigureAwait(false);
}
if (model == null)
{
model = new Media()
{
Id = model != null || content.Id.HasValue ? content.Id.Value : Guid.NewGuid(),
Created = DateTime.Now
};
content.Id = model.Id;
}
else
{
using (var session = await _storage.OpenAsync().ConfigureAwait(false))
{
// Delete all versions as we're updating the image
if (model.Versions.Count > 0)
{
foreach (var version in model.Versions)
{
// Delete version from storage
await session.DeleteAsync(model, GetResourceName(model, version.Width, version.Height, version.FileExtension)).ConfigureAwait(false);
}
model.Versions.Clear();
}
// Delete the old file because we might have a different filename
await session.DeleteAsync(model, GetResourceName(model)).ConfigureAwait(false);
}
}
var type = App.MediaTypes.GetItem(content.Filename);
model.Filename = content.Filename.Replace(" ", "_");
model.FolderId = content.FolderId;
model.Type = App.MediaTypes.GetMediaType(content.Filename);
model.ContentType = type.ContentType;
model.LastModified = DateTime.Now;
Stream stream = null;
if (content is BinaryMediaContent binaryContent)
{
stream = new MemoryStream(binaryContent.Data);
}
else if (content is StreamMediaContent streamContent)
{
stream = streamContent.Data;
}
// Pre-process if this is an image
if (_processor != null && type.AllowProcessing && model.Type == MediaType.Image)
{
// Make sure to apply auto orientation according to exif
var memStream = new MemoryStream();
_processor.AutoOrient(stream, memStream);
// Get the image size
_processor.GetSize(memStream, out var width, out var height);
model.Width = width;
model.Height = height;
stream = memStream;
}
// Upload to storage
using (var session = await _storage.OpenAsync().ConfigureAwait(false))
{
model.Size = stream.Length;
await session.PutAsync(model, model.Filename,
model.ContentType, stream).ConfigureAwait(false);
}
App.Hooks.OnBeforeSave(model);
await _repo.Save(model).ConfigureAwait(false);
App.Hooks.OnAfterSave(model);
RemoveFromCache(model);
RemoveStructureFromCache();
}
