Thanks to Brice Leroy, make ProxyField compatible with render_htmlgrid.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@6048 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Form/ProxyField.py

@@ -149,6 +149,18 @@ class ProxyField(ZMIField):
       proxy_field = None
     return proxy_field
 
+  def render_htmlgrid(self, value=None, REQUEST=None, key=None):
+    """
+    render_htmlgrid returns a list of tuple (title, html render)
+    We will use title generated by the widget.
+    """
+    result = ()
+    proxy_field = self.getTemplateField()
+    if proxy_field is not None :
+      result = proxy_field.render_htmlgrid(key=key, value=value,
+                                           REQUEST=REQUEST)
+    return result
+
   def updateContext(self, REQUEST):
     """
     Update the REQUEST