Avoid flooding intergration site.

master/bt5/vifib_payzen/SkinTemplateItem/portal_skins/vifib_payzen/AccountingTransaction_startPayment.xml

@@ -69,12 +69,13 @@ transaction_id = str(portal.portal_ids.generateNewId(\n
     id_generator=\'uid\')).zfill(6)\n
 \n
 mapping_id = \'%s_%s\' % (today, transaction_id)\n
-try:\n
+if integration_site.getMappingFromCategory(\'causality/%s\' % context.getRelativeUrl()) == \'Causality/%s\' % context.getRelativeUrl():\n
+  try:\n
     integration_site.getCategoryFromMapping(\'Causality/%s\' % mapping_id, create_mapping_line=True, create_mapping=True)\n
-except ValueError:\n
+  except ValueError:\n
     mapping = integration_site.Causality[mapping_id]\n
     mapping.setDestinationReference(\'causality/%s\' % context.getRelativeUrl())\n
-else:\n
+  else:\n
     system_event.confirm(comment=\'Key %s already found!\' % mapping_id)\n
     return \'There was system issue\'\n
 \n

master/bt5/vifib_payzen/bt/revision

-56
\ No newline at end of file
+57
\ No newline at end of file