diff --git a/product/ERP5/Document/TextDocument.py b/product/ERP5/Document/TextDocument.py index 49652dbcc208f09c1f310b801633fd7942738e57..02cce94bf6ed751665ad72de9513ae6df1f1b2cf 100644 --- a/product/ERP5/Document/TextDocument.py +++ b/product/ERP5/Document/TextDocument.py @@ -147,8 +147,17 @@ class TextDocument(Document, TextContent): src_mimetype = self.getTextFormat(DEFAULT_TEXT_FORMAT) if not src_mimetype.startswith('text/'): src_mimetype = 'text/%s' % src_mimetype - return mime_type, getToolByName(self, 'portal_transforms').convertTo(mime_type, - self.getTextContent(), object=self, mimetype=src_mimetype) + # check if document has set text_content and convert if necessary + text_content = self.getTextContent() + if text_content is not None: + portal_transforms = getToolByName(self, 'portal_transforms') + return mime_type, portal_transforms.convertTo(mime_type, + text_content, + object = self, + mimetype = src_mimetype) + else: + # text_content is not set, return empty string instead of None + return mime_type, '' def __call__(self): _setCacheHeaders(self, {})