Unify usage if format == None.

If format is None it means that we do not want to change the format
and return the raw data or a resized image in same format.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@35752 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/Image.py

@@ -275,7 +275,7 @@ class Image(TextConvertableMixin, File, OFSImage):
     return links
 
   security.declareProtected('Access contents information', 'displayMap')
-  def displayMap(self, exclude=None, format='', quality=DEFAULT_QUALITY,
+  def displayMap(self, exclude=None, format=None, quality=DEFAULT_QUALITY,\
                                                               resolution=None):
     """Return list of displays with size info."""
     displays = []

product/ERP5/Document/TextDocument.py

@@ -142,9 +142,6 @@ class TextDocument(CachedConvertableMixin, BaseConvertableFileMixin,
       if not format:
         # can return document without conversion
         return src_mimetype, self.getTextContent()
-      # Return the raw content
-      if format == 'raw':
-        return 'text/plain', self.getTextContent()
       portal = self.getPortalObject()
       mime_type = getToolByName(portal, 'mimetypes_registry').\
                                             lookupExtension('name.%s' % format)

product/ERP5/interfaces/document.py

@@ -191,7 +191,9 @@ class IDocument(Interface):
 
     format - the format specied in the form of an extension
     string (ex. jpeg, html, text, txt, etc.)
-    **kw can be various things - e.g. resolution
+    if format is None means that we do not want to change the format
+    and return the raw data or a resized image in same format.
+    **kw - can be various things - e.g. resolution
     """
 
   def isSupportBaseDataConversion():