[algorithms] Update hash and path creation in execute to use new paradigm

beat/cmdline/algorithms.py

@@ -269,13 +269,12 @@ def execute(prefix, cache, instructions_file):
 
     for name, cfg in configuration['inputs'].items():
       cfg['endpoint'] = name
-
+      suffix = ''
       if cfg.has_key('database'):   # Connected to a database output
-        db = DatabaseStorage(prefix, cfg['database'])
-        cfg['hash'] = hash.hashDataset(db.hash(), cfg['protocol'], cfg['set'])
-        cfg['path'] = hash.toPath(cfg['hash'], '')
-      else:
-        cfg['path'] = hash.toPath(cfg['hash'], '')
+        cfg['hash'] = hash.hashDataset(cfg['database'], cfg['protocol'], cfg['set'])
+        suffix = '.db'
+
+      cfg['path'] = hash.toPath(cfg['hash'], suffix=suffix)
 
     algo = AlgorithmStorage(prefix, configuration['algorithm'])