public UnitOfWork(AssetContext context)
{
_context = context;
Assets = new AssetRepository(_context);
Countries = new CountryRepository(_context);
MimeTypes = new MimeTypeRepository(_context);
}
/// <summary>
/// Updates the data store records with the values of this instance.
/// </summary>
private void SaveExisting()
{
if (MimeTypeId == int.MinValue)
{
throw new InvalidOperationException("Cannot call SaveExisting for new MIME types.");
}
using (var repo = new MimeTypeRepository())
{
var mtDto = repo.Find(MimeTypeId);
if (mtDto != null && mtDto.MimeTypeValue != FullType)
{
mtDto.MimeTypeValue = FullType;
repo.Save();
}
}
using (var repo = new MimeTypeGalleryRepository())
{
var mtDto = repo.Find(MimeTypeGalleryId);
if (mtDto != null && mtDto.IsEnabled != AllowAddToGallery)
{
mtDto.IsEnabled = AllowAddToGallery;
repo.Save();
}
}
}
/// <summary>
/// Verify there is a MIME type/gallery mapping for the current gallery for every MIME type, creating any
/// if necessary.
/// </summary>
/// <returns><c>true</c> if data was changed that necessitates reloading data from the data store, <c>false</c> otherwise.</returns>
private bool ConfigureMimeTypeGalleryTable()
{
var defaultEnabledExtensions = new List <string> {
".jpg", ".jpeg"
};
var needToClearCache = false;
using (var repoMt = new MimeTypeRepository())
{
using (var repoMtg = new MimeTypeGalleryRepository())
{
// Get MIME types that don't have a match in the MIME Type Gallery table
foreach (var mtDto in repoMt.Where(mt => mt.MimeTypeGalleries.All(mtg => mtg.FKGalleryId != GalleryId)))
{
repoMtg.Add(new MimeTypeGalleryDto()
{
FKGalleryId = GalleryId,
FKMimeTypeId = mtDto.MimeTypeId,
IsEnabled = defaultEnabledExtensions.Contains(mtDto.FileExtension)
});
needToClearCache = true;
}
repoMtg.Save();
}
}
return(needToClearCache);
}
/// <summary>
/// Create a new MimeType and MimeTypeGallery record for this instance.
/// </summary>
/// <exception cref="InvalidOperationException">Thrown when <see cref="MimeTypeId" /> is any value other than <see cref="Int32.MinValue" /></exception>
private void SaveNew()
{
if (MimeTypeId != int.MinValue)
{
throw new InvalidOperationException("Cannot call SaveNew when the MIME type already exists in the data store.");
}
int mimeTypeId;
using (var repo = new MimeTypeRepository())
{
var mimeTypeDto = new MimeTypeDto()
{
FileExtension = Extension, MimeTypeValue = FullType, BrowserMimeTypeValue = BrowserMimeType
};
repo.Add(mimeTypeDto);
repo.Save();
mimeTypeId = mimeTypeDto.MimeTypeId;
}
using (var repo = new MimeTypeGalleryRepository())
{
repo.Add(new MimeTypeGalleryDto()
{
FKGalleryId = GalleryId, FKMimeTypeId = mimeTypeId, IsEnabled = AllowAddToGallery
});
repo.Save();
}
// Clear the gallery cache. This will eventually trigger Gallery.Configure(), which will ensure that all galleries have a MimeTypeGallery record for
// this MIME type.
Factory.ClearGalleryCache();
}
/// <summary>
/// Permanently delete this MIME type from the data store.
/// </summary>
public void Delete()
{
if (MimeTypeId == int.MinValue)
{
return;
}
using (var repo = new MimeTypeRepository())
{
var mtDto = repo.Find(MimeTypeId);
if (mtDto != null)
{
repo.Delete(mtDto);
repo.Save();
}
}
}
/// <summary>
/// Loads the set of MIME types from the data store. These MIME types are the master list of MIME types and are not
/// specific to a particular gallery. That is, the <see cref="IMimeType.GalleryId" /> property is set to <see cref="Int32.MinValue" />
/// and the <see cref="IMimeType.AllowAddToGallery" /> property is <c>false</c> for all items.
/// </summary>
/// <returns>Returns a <see cref="IMimeTypeCollection" /> containing MIME types..</returns>
/// <exception cref="BusinessException">Thrown when no records were found in the master list of MIME types in the data store.</exception>
private static IMimeTypeCollection LoadMimeTypesFromDataStore()
{
IMimeTypeCollection baseMimeTypes = new MimeTypeCollection();
using (var repo = new MimeTypeRepository())
{
foreach (var mimeTypeDto in repo.GetAll().OrderBy(m => m.FileExtension))
{
baseMimeTypes.Add(new MimeType(mimeTypeDto.MimeTypeId, Int32.MinValue, Int32.MinValue, mimeTypeDto.FileExtension.Trim(), mimeTypeDto.MimeTypeValue.Trim(), mimeTypeDto.BrowserMimeTypeValue.Trim(), false));
}
}
if (baseMimeTypes.Count == 0)
{
throw new BusinessException("No records were found in the master list of MIME types in the data store.");
}
return(baseMimeTypes);
}
/// <summary>
/// Loads the set of MIME types from the data store. These MIME types are the master list of MIME types and are not
/// specific to a particular gallery. That is, the <see cref="IMimeType.GalleryId" /> property is set to <see cref="Int32.MinValue" />
/// and the <see cref="IMimeType.AllowAddToGallery" /> property is <c>false</c> for all items.
/// </summary>
/// <returns>Returns a <see cref="IMimeTypeCollection" /> containing MIME types..</returns>
/// <exception cref="BusinessException">Thrown when no records were found in the master list of MIME types in the data store.</exception>
private static IMimeTypeCollection LoadMimeTypesFromDataStore()
{
IMimeTypeCollection baseMimeTypes = new MimeTypeCollection();
using (var repo = new MimeTypeRepository())
{
foreach (var mimeTypeDto in repo.GetAll().OrderBy(m => m.FileExtension))
{
baseMimeTypes.Add(new MimeType(mimeTypeDto.MimeTypeId, Int32.MinValue, Int32.MinValue, mimeTypeDto.FileExtension.Trim(), mimeTypeDto.MimeTypeValue.Trim(), mimeTypeDto.BrowserMimeTypeValue.Trim(), false));
}
}
if (baseMimeTypes.Count == 0)
{
throw new BusinessException("No records were found in the master list of MIME types in the data store.");
}
return baseMimeTypes;
}
/// <summary>
/// Verify there is a MIME type/gallery mapping for the current gallery for every MIME type, creating any
/// if necessary.
/// </summary>
private void ConfigureMimeTypeGalleryTable()
{
var defaultEnabledExtensions = new List<string> { ".jpg", ".jpeg" };
using (var repoMt = new MimeTypeRepository())
{
using (var repoMtg = new MimeTypeGalleryRepository())
{
// Get MIME types that don't have a match in the MIME Type Gallery table
foreach (var mtDto in repoMt.Where(mt => mt.MimeTypeGalleries.All(mtg => mtg.FKGalleryId != GalleryId)))
{
repoMtg.Add(new MimeTypeGalleryDto()
{
FKGalleryId = GalleryId,
FKMimeTypeId = mtDto.MimeTypeId,
IsEnabled = defaultEnabledExtensions.Contains(mtDto.FileExtension)
});
}
repoMtg.Save();
}
}
}
