id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
5845	_get_next_or_previous_by_FIELD returns the same row in first row	psclil+django@…	nobody	"I'm using sqlite3

when i use:

{{{next = post.get_next_by_date_added()}}}

if post is the first date:

next becomes equale to post.

otherwise this works fine...

i didn't want to change the sql generated or something like that because i'm really new to the framework,
so i decided to do little fixing before returning a value:

{{{
    def _get_next_or_previous_by_FIELD(self, field, is_next, **kwargs):
        op = is_next and '>' or '<'
        where = '(%s %s %%s OR (%s = %%s AND %s.%s %s %%s))' % \
            (backend.quote_name(field.column), op, backend.quote_name(field.column),
            backend.quote_name(self._meta.db_table), backend.quote_name(self._meta.pk.column), op)
        param = str(getattr(self, field.attname))
        q = self.__class__._default_manager.filter(**kwargs).order_by((not is_next and '-' or '') + field.name, (not is_next and '-' or '') + self._meta.pk.name)
        q._where.append(where)
        q._params.extend([param, param, getattr(self, self._meta.pk.attname)])
        try:
            i=0
            while q[i] == self:
                i=i+1
            return q[i]
        except IndexError:
            raise self.DoesNotExist, ""%s matching query does not exist."" % self.__class__._meta.object_name
}}}

I changed

{{{            return q[0]}}}

into

{{{
            i=0
            while q[i] == self:
                i=i+1
            return q[i]
}}}"		closed	Database layer (models, ORM)	dev		worksforme			Unreviewed	0	0	0	0	0	0