Do not compute precision: displayed exchange rate is related to selected...

Do not compute precision: displayed exchange rate is related to selected currency, so there is no point in doning any rounding to the value to display.
Also, unify the way exchange rate is computed.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@22253 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_banking_cash/SkinTemplateItem/portal_skins/erp5_banking_cash/CashToCurrencyPurchase_view/your_exchange_rate.xml

@@ -157,9 +157,7 @@
                 </item>
                 <item>
                     <key> <string>precision</string> </key>
-                    <value>
-                      <persistent> <string encoding="base64">AAAAAAAAAAM=</string> </persistent>
-                    </value>
+                    <value> <string></string> </value>
                 </item>
                 <item>
                     <key> <string>required</string> </key>
@@ -230,7 +228,7 @@
                 </item>
                 <item>
                     <key> <string>precision</string> </key>
-                    <value> <int>0</int> </value>
+                    <value> <string></string> </value>
                 </item>
                 <item>
                     <key> <string>required</string> </key>
@@ -261,23 +259,7 @@
       <dictionary>
         <item>
             <key> <string>_text</string> </key>
-            <value> <string>python: here.CurrencyExchange_getExchangeRateList()[0]</string> </value>
-        </item>
-      </dictionary>
-    </pickle>
-  </record>
-  <record id="3" aka="AAAAAAAAAAM=">
-    <pickle>
-      <tuple>
-        <global name="TALESMethod" module="Products.Formulator.TALESField"/>
-        <tuple/>
-      </tuple>
-    </pickle>
-    <pickle>
-      <dictionary>
-        <item>
-            <key> <string>_text</string> </key>
-            <value> <string>python: here.getResourceValue().getQuantityPrecision()</string> </value>
+            <value> <string>python: here.CurrencyExchange_getExchangeRateList(from_currency=here.getResource(), to_currency=\'currency_module/%s\' % (here.Baobab_getPortalReferenceCurrencyID()), currency_exchange_type=\'purchase\', start_date=here.getStartDate())[0]</string> </value>
         </item>
       </dictionary>
     </pickle>

bt5/erp5_banking_cash/SkinTemplateItem/portal_skins/erp5_banking_cash/CashToCurrencySale_view/your_exchange_rate.xml

@@ -157,9 +157,7 @@
                 </item>
                 <item>
                     <key> <string>precision</string> </key>
-                    <value>
-                      <persistent> <string encoding="base64">AAAAAAAAAAM=</string> </persistent>
-                    </value>
+                    <value> <string></string> </value>
                 </item>
                 <item>
                     <key> <string>required</string> </key>
@@ -230,7 +228,7 @@
                 </item>
                 <item>
                     <key> <string>precision</string> </key>
-                    <value> <int>0</int> </value>
+                    <value> <string></string> </value>
                 </item>
                 <item>
                     <key> <string>required</string> </key>
@@ -266,20 +264,4 @@
       </dictionary>
     </pickle>
   </record>
-  <record id="3" aka="AAAAAAAAAAM=">
-    <pickle>
-      <tuple>
-        <global name="TALESMethod" module="Products.Formulator.TALESField"/>
-        <tuple/>
-      </tuple>
-    </pickle>
-    <pickle>
-      <dictionary>
-        <item>
-            <key> <string>_text</string> </key>
-            <value> <string>python: here.getResourceValue().getQuantityPrecision()</string> </value>
-        </item>
-      </dictionary>
-    </pickle>
-  </record>
 </ZopeData>

bt5/erp5_banking_cash/bt/revision

-624
+625
\ No newline at end of file