remove caching

currency.py

@@ -3,8 +3,7 @@
 # The COPYRIGHT file at the top level of this repository contains the
 # full copyright notices and license terms.
 
-from trytond.pool import Pool, PoolMeta
-from .model import CACHEKEY_CURRENCY
+from trytond.pool import PoolMeta
 
 
 class CurrencyRate(metaclass=PoolMeta):
@@ -14,36 +13,22 @@ class CurrencyRate(metaclass=PoolMeta):
     def create(cls, vlist):
         """ update cache-value
         """
-        MemCache = Pool().get('cashbook.memcache')
-
         records = super(CurrencyRate, cls).create(vlist)
-        for rate in records:
-            MemCache.record_update(CACHEKEY_CURRENCY % rate.currency.id, rate)
+        # TODO: update cashbooks using this rate
         return records
 
     @classmethod
     def write(cls, *args):
         """ update cache-value
         """
-        MemCache = Pool().get('cashbook.memcache')
-
         super(CurrencyRate, cls).write(*args)
-
-        actions = iter(args)
-        for rates, values in zip(actions, actions):
-            for rate in rates:
-                MemCache.record_update(
-                    CACHEKEY_CURRENCY % rate.currency.id, rate)
+        # TODO: update cashbooks using this rate
 
     @classmethod
     def delete(cls, records):
         """ set cache to None
         """
-        MemCache = Pool().get('cashbook.memcache')
-
-        for record in records:
-            MemCache.record_update(
-                CACHEKEY_CURRENCY % record.currency.id, None)
         super(CurrencyRate, cls).delete(records)
+        # TODO: update cashbooks using this rate
 
 # end