* add 'cache_id_func' argument in CachingMethod.__init__ to specify how to...

* add 'cache_id_func' argument in CachingMethod.__init__ to specify how to generate cache_id, that is especially useful when you want to use for instance methods where args contain 'self'.
* use 'cache_id_func' in ERP5TypeInformation._getRawActionInformationList().


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@29691 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/Cache.py

@@ -157,7 +157,8 @@ class CachingMethod:
   factories = {}
 
   def __init__(self, callable_object, id, cache_duration=180,
-               cache_factory=DEFAULT_CACHE_FACTORY):
+               cache_factory=DEFAULT_CACHE_FACTORY,
+               cache_id_func=None):
     """Wrap a callable object in a caching method.
 
     callable_object must be callable.
@@ -175,6 +176,7 @@ class CachingMethod:
     self.callable_object = callable_object
     self.cache_duration = cache_duration
     self.cache_factory = cache_factory
+    self.cache_id_func = cache_id_func
 
   def __call__(self, *args, **kwd):
     """Call the method or return cached value using appropriate cache plugin """
@@ -221,6 +223,9 @@ class CachingMethod:
     ## generate cache id out of arguments passed.
     ## depending on arguments we may have different
     ## cache_id for same method_id
+    cache_id_func = self.cache_id_func
+    if cache_id_func is not None:
+      return cache_id_func(method_id, *args, **kwd)
     return str((method_id, args, kwd))
 
 allow_class(CachingMethod)

product/ERP5Type/ERP5Type.py

@@ -530,7 +530,8 @@ class ERP5TypeInformation(XMLObject,
     _getRawActionInformationList = CachingMethod(
       _getRawActionInformationList,
       id='_getRawActionInformationList',
-      cache_factory='erp5_content_long')
+      cache_factory='erp5_content_long',
+      cache_id_func=lambda method_id, *args, **kwd:str(method_id))
 
     security.declarePrivate('getRawActionInformationList')
     def getRawActionInformationList(self):