dal.py 文件源码

def retrieve_file_properties(self, name, path=None):
        self_uploadfield = self.uploadfield
        if self.custom_retrieve_file_properties:
            return self.custom_retrieve_file_properties(name, path)
        try:
            m = REGEX_UPLOAD_PATTERN.match(name)
            if not m or not self.isattachment:
                raise TypeError('Can\'t retrieve %s file properties' % name)
            filename = base64.b16decode(m.group('name'), True)
            filename = REGEX_CLEANUP_FN.sub('_', filename)
        except (TypeError, AttributeError):
            filename = name
        if isinstance(self_uploadfield, str):  # ## if file is in DB
            return dict(path=None,filename=filename)
        elif isinstance(self_uploadfield,Field):
            return dict(path=None,filename=filename)
        else:
            # ## if file is on filesystem
            if path:
                pass
            elif 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)