/// <summary>
/// 获取商品相册图片的储存文件
/// </summary>
/// <param name="id">商品Id</param>
/// <param name="index">图片序号，null时返回主图的路径</param>
/// <param name="type">商品相册的图片类型，原图或缩略图等</param>
/// <returns></returns>
public virtual IFileEntry GetAlbumImageStorageFile(
Guid id, long?index, ProductAlbumImageType type)
{
var fileStorage = Application.Ioc.Resolve <IFileStorage>();
var indexString = index.HasValue ? index.Value.ToString() : "main";
var suffix = type.GetAttribute <ProductAlbumImageSuffixAttribute>().Suffix;
var path = string.Format(AlbumImagePathFormat, id, indexString, suffix);
return(fileStorage.GetStorageFile(path.Split('/').Skip(1).ToArray()));
}
/// <summary>
/// 获取商品相册图片的储存路径，路径不一定存在
/// </summary>
/// <param name="id">商品Id</param>
/// <param name="index">图片序号，null时返回主图的路径</param>
/// <param name="type">商品相册的图片类型，原图或缩略图等</param>
/// <returns></returns>
public virtual string GetAlbumImageStoragePath(
long id, long?index, ProductAlbumImageType type)
{
var pathManager = Application.Ioc.Resolve <PathManager>();
var indexString = index.HasValue ? index.Value.ToString() : "main";
var suffix = type.GetAttribute <ProductAlbumImageSuffixAttribute>().Suffix;
var path = string.Format(AlbumImagePathFormat, id, indexString, suffix);
return(pathManager.GetStorageFullPath(path.Split('/').Skip(1).ToArray()));
}
/// <summary>
/// 获取商品相册图片的网页路径，不存在时返回默认路径
/// </summary>
/// <param name="id">商品Id</param>
/// <param name="index">图片序号，null时返回主图的路径</param>
/// <param name="type">商品相册的图片类型，原图或缩略图等</param>
/// <param name="defaultPath">不存在时返回的默认路径</param>
/// <returns></returns>
public virtual string GetAlbumImageWebPath(
Guid id, long?index, ProductAlbumImageType type, string defaultPath = DefaultAlbumImagePath)
{
var storageFile = GetAlbumImageStorageFile(id, index, type);
if (!storageFile.Exists)
{
return(defaultPath);
}
var indexString = index.HasValue ? index.Value.ToString() : "main";
var suffix = type.GetAttribute <ProductAlbumImageSuffixAttribute>().Suffix;
var webPath = string.Format(AlbumImagePathFormat, id, indexString, suffix);
webPath += "?mtime=" + storageFile.LastWriteTimeUtc.Ticks;
return(webPath);
}
/// <summary>
/// 获取商品相册图片的网页路径，不存在时返回默认路径
/// </summary>
/// <param name="id">商品Id</param>
/// <param name="index">图片序号，null时返回主图的路径</param>
/// <param name="type">商品相册的图片类型，原图或缩略图等</param>
/// <param name="defaultPath">不存在时返回的默认路径</param>
/// <returns></returns>
public virtual string GetAlbumImageWebPath(
long id, long?index, ProductAlbumImageType type, string defaultPath = DefaultAlbumImagePath)
{
var storagePath = GetAlbumImageStoragePath(id, index, type);
var storagePathInfo = new FileInfo(storagePath);
if (!storagePathInfo.Exists)
{
return(defaultPath);
}
var pathManager = Application.Ioc.Resolve <PathManager>();
var indexString = index.HasValue ? index.Value.ToString() : "main";
var suffix = type.GetAttribute <ProductAlbumImageSuffixAttribute>().Suffix;
var webPath = string.Format(AlbumImagePathFormat, id, indexString, suffix);
webPath += "?mtime=" + storagePathInfo.LastWriteTimeUtc.Ticks;
return(webPath);
}
