delete_like method implementation missing in no_cache and session_cache (Chamilo 2.1 stable) (Cache application)
This is a bug encountered in Chamilo 2.1 stable. I've created the issue here because there is no issue tracker for the Cache application and the Cache application is mainly used for the Handbook application.
Cache implementations extend from a super Cache class, which is abstract. Subclasses need to implement a delete_like method. The db_cache provides such an implemenation, but the no_cache and session_cache versions do not. This will cause a fatal error when one of these caches is configured, and an administrator tries to clear the cache.
The attached cache.patch file implements this method for both classes.