check that cell is not None

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@21422 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_payroll/SkinTemplateItem/portal_skins/erp5_payroll/PaySheetModelLine_view/matrixbox_price.xml

@@ -127,7 +127,7 @@
       <dictionary>
         <item>
             <key> <string>_text</string> </key>
-            <value> <string>python:cell.getProperty(\'price\')</string> </value>
+            <value> <string>python: cell is not None and cell.getProperty(\'price\')</string> </value>
         </item>
       </dictionary>
     </pickle>

bt5/erp5_payroll/SkinTemplateItem/portal_skins/erp5_payroll/PaySheetModelLine_view/matrixbox_quantity.xml

@@ -130,7 +130,7 @@
       <dictionary>
         <item>
             <key> <string>_text</string> </key>
-            <value> <string>python: cell.getProperty(\'quantity\')</string> </value>
+            <value> <string>python: cell is not None and cell.getProperty(\'quantity\')</string> </value>
         </item>
       </dictionary>
     </pickle>

bt5/erp5_payroll/bt/revision

-257
+258
\ No newline at end of file