Add getSelectionParams for convenience.

If selection columns are none, set them to the parameter columns
before returning.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@1202 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Form/SelectionTool.py

@@ -145,6 +145,21 @@ class SelectionTool( UniqueObject, SimpleItem ):
       #except:
       #  LOG('WARNING ERP5Form SelectionTool',0,'Could not set Selection')
 
+    security.declareProtected(ERP5Permissions.View, 'getSelectionParams')
+    def getSelectionParams(self, selection_name, params=None, REQUEST=None):
+      """
+        Returns the params in the selection
+      """
+      if params is None: params = []
+      selection = self.getSelectionFor(selection_name, REQUEST=REQUEST)
+      if selection is not None:
+        if len(selection.selection_columns) > 0:
+          return selection.getSelectionParams()
+        else:
+          return params
+      else:
+        return params
+
     security.declareProtected(ERP5Permissions.View, 'setSelectionParamsFor')
     def setSelectionParamsFor(self, selection_name, params, REQUEST=None):
       """
@@ -326,12 +341,11 @@ class SelectionTool( UniqueObject, SimpleItem ):
       if columns is None: columns = []
       selection = self.getSelectionFor(selection_name, REQUEST=REQUEST)
       if selection is not None:
-        if len(selection.selection_columns) > 0:
+        if len(selection.selection_columns) == 0:
+          self.setSelectionColumns(selection_name, columns, REQUEST=REQUEST)
         return selection.selection_columns
       else:
         return columns
-      else:
-        return columns
 
 
     security.declareProtected(ERP5Permissions.View, 'setSelectionStats')