objects.py 文件源码

def retrieve_file_properties(self, name, path=None):
        m = REGEX_UPLOAD_PATTERN.match(name)
        if not m or not self.isattachment:
            raise TypeError('Can\'t retrieve %s file properties' % name)
        self_uploadfield = self.uploadfield
        if self.custom_retrieve_file_properties:
            return self.custom_retrieve_file_properties(name, path)
        if m.group('name'):
            try:
                filename = base64.b16decode(m.group('name'), True).decode('utf-8')
                filename = REGEX_CLEANUP_FN.sub('_', filename)
            except (TypeError, AttributeError):
                filename = name
        else:
            filename = name
        # ## if file is in DB
        if isinstance(self_uploadfield, (str, Field)):
            return dict(path=None, filename=filename)
        # ## if file is on filesystem
        if not path:
            if self.uploadfolder:
                path = self.uploadfolder
            else:
                path = pjoin(self.db._adapter.folder, '..', 'uploads')
        if self.uploadseparate:
            t = m.group('table')
            f = m.group('field')
            u = m.group('uuidkey')
            path = pjoin(path, "%s.%s" % (t, f), u[:2])
        return dict(path=path, filename=filename)