1 files changed, 23 insertions, 3 deletions
diff --git a/bin/tools/misc.py b/bin/tools/misc.py
index 993f4eb03f8..6241365f8d0 100644
--- a/bin/tools/misc.py
+++ b/bin/tools/misc.py
@@ -536,14 +536,34 @@ class cache(object):
     Use it as a decorator of the function you plan to cache
     Timeout: 0 = no timeout, otherwise in seconds
     """
-
-    def __init__(self, timeout=10000, skiparg=2, multi=None):
+    
+    __caches = []
+    
+    def __init__(self, timeout=None, skiparg=2, multi=None):
         assert skiparg >= 2 # at least self and cr
-        self.timeout = timeout
+        if timeout is None:
+            self.timeout = config['cache_timeout']
+        else:
+            self.timeout = timeout
         self.skiparg = skiparg
         self.multi = multi
         self.lasttime = time.time()
         self.cache = {}
+        
+        cache.__caches.append(self)
+
+    @classmethod        
+    def clean_cache_for_db(cls, dbname):
+        def get_dbname_from_key(key):
+            for e in key:
+                if e[0] == 'dbname':
+                    return e[1]
+            return None
+
+        for cache in cls.__caches:
+            keys_to_del = [key for key in cache.cache if get_dbname_from_key(key) == dbname]
+            for key in keys_to_del:
+                del cache.cache[key]
 
     def __call__(self, fn):
         arg_names = inspect.getargspec(fn)[0][self.skiparg:]