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
\ No newline at end of file
+625
\ No newline at end of file