Fixed editing properties on FileClass nodes.

Previously, if there was no 'content' property in the form when
editing properties, other changes wold be discarded silently. Now, an
exception is raised when there is a empty content property. Also, when
there is no content property, other attributes can be edited.

Author: Johannes Gijsbers

roundup/cgi/client.py

@@ -1,4 +1,4 @@
-# $Id: client.py,v 1.127 2003-08-10 10:30:56 jlgijsbers Exp $
+# $Id: client.py,v 1.128 2003-08-10 13:38:43 jlgijsbers Exp $
 
 __doc__ = """
 WWW request handler (also used in the stand-alone server).
@@ -1953,15 +1953,17 @@ def parsePropsFromForm(self, num_re=re.compile('^\d+$')):
         if s:
             raise ValueError, '\n'.join(s)
 
-        # check that FileClass entries have a "content" property with
-        # content, otherwise remove them
+        # When creating a FileClass node, it should have a non-empty content
+        # property to be created. When editing a FileClass node, it should
+        # either have a non-empty content property or no property at all. In
+        # the latter case, nothing will change.
         for (cn, id), props in all_props.items():
-            cl = self.db.classes[cn]
-            if not isinstance(cl, hyperdb.FileClass):
-                continue
-            # we also don't want to create FileClass items with no content
-            if not props.get('content', ''):
-                del all_props[(cn, id)]
+            if isinstance(self.db.classes[cn], hyperdb.FileClass):
+                if id == '-1':
+                      if not props.get('content', ''):
+                            del all_props[(cn, id)]
+                elif props.has_key('content') and not props['content']:
+                      raise ValueError, _('File is empty')
         return all_props, all_links
 
 def fixNewlines(text):