Prevent raising an error when value of a ListField is not in the item list.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@26797 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_ods_style/SkinTemplateItem/portal_skins/erp5_ods_style/form_view.xml

@@ -113,8 +113,14 @@ dQEAAAAA</string> </value>
                                   tal:content="value">\n
                               </text:p>\n
                             <tal:block tal:condition="python: value != \'\'">\n
-                              <text:p tal:condition="item_list"\n
-                                    tal:content="python: [str(i[0]).replace(\'&amp;\', \'\') for i in item_list if i[1] == value][0]">\n
+\n
+                              <text:p tal:condition="item_list">\n
+                                <tal:block tal:define="displayed_value_list python: [str(i[0]).replace(\'&amp;\', \'\') for i in item_list if i[1] == value]">\n
+                                  <tal:block tal:condition="displayed_value_list"\n
+                                             tal:replace="python: displayed_value_list[0]" />\n
+                                  <tal:block tal:condition="not: displayed_value_list"\n
+                                             tal:replace="python: value" />\n
+                                </tal:block>\n
                               </text:p>\n
                             </tal:block>\n
                             <tal:block tal:condition="python: value is None">\n

bt5/erp5_ods_style/bt/revision

-202
+203
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