(self, query, text, lookup=None)
Search *text* in *model* instances.

        This is the functions needing implementation by custom search engines.

        :param query: a :class:`Query` on a :class:`StdModel`.
        :param text: text to search
        :param lookup: Optional lookup, one of ``contains`` or ``in``.
        :return: An updated :class:`Query`.
Search *text* in *model* instances.
Search * text * in * model * instances .
def search_model(self, query, text, lookup=None):
        '''Search *text* in *model* instances.

        This is the functions needing implementation by custom search engines.

        :param query: a :class:`Query` on a :class:`StdModel`.
        :param text: text to search
        :param lookup: Optional lookup, one of ``contains`` or ``in``.
        :return: An updated :class:`Query`.
        '''
        raise NotImplementedError
def search_model ( self , query , text , lookup = None ) : raise NotImplementedError