Obtaining a cache dependency key

Normally we then want to invalidate the cached model if the current content has changed, i.e. a new version is published.

To achieve this we need to obtain a version cache key using the IContentCacheKeyCreator interface:

IContentCacheKeyCreator.CreateVersionCacheKey(contentLink) However, this will only work if the contentLink provided contains the necessary version info, meaning both the published version and a work id.

The code sample below show how that can be done for catalog node content:

var currentNodeContentLink = _referenceConverter.GetContentLink(catalogNodeId, CatalogContentType.CatalogNode, 0); // 0 = published version var versionCacheKey = GetVersionKey(currentNodeContentLink); .... public string GetVersionKey(ContentReference contentLink) { var versionCacheKey = string.Empty; var latestPublishedVersion = _contentVersionRepository.List(contentLink).ToList() .FirstOrDefault(v => v.Status == VersionStatus.Published); if (latestPublishedVersion != null) { // adding current published version to cache key versionCacheKey = _cacheKeyCreator.CreateVersionCacheKey(latestPublishedVersion.ContentLink); } return versionCacheKey; }