make sure that File.__init__ will call OFS.Image.File.__init__, otherwise

viewing an empty file will result in an 'AttributeError data'.



git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@16164 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/File.py

@@ -37,6 +37,7 @@ from Products.ERP5.Document.Document import Document
 from Products.ERP5.Document.Document import ConversionCacheMixin
 from Products.ERP5Type.Base import Base
 from Products.CMFDefault.File import File as CMFFile
+import OFS
 from zLOG import LOG
 from DateTime import DateTime
 
@@ -106,6 +107,15 @@ class File(Document, CMFFile, ConversionCacheMixin):
   # Declarative interfaces
   #__implements__ = ( , )
   
+  def __init__(self, id, *args, **kw):
+    """Initialize the underlying File. """
+    Document.__init__(self, id, *args, **kw)
+    # We don't call CMFFile.__init__, because it calls DefaultDublinCoreImpl,
+    # which calls some setters that will not work on an ERP5Type.Base object
+    # before beeing in the database. 
+    OFS.Image.File.__init__(self, id, title=None, file='')
+    
+
   ### Special edit method
   security.declarePrivate( '_edit' )
   def _edit(self, **kw):