in SQL, or Django ORM, what's the conventional way to have an ordered one-to-many?

{% extends 'admin/change_form.html' %}

{% block form_top %}{% endblock %}
{% block extrahead %}{{ block.super }}
<script type="text/javascript" src="/media/js/jquery.js"></script>
<script type="text/javascript" src="/media/js/interface.js"></script>
<script>
$(document).ready(
    function () {
        $('ol.articles').Sortable(
            {
                accept :        'sortableitem',
                helperclass :   'sorthelper',
                activeclass :   'sortableactive',
                hoverclass :    'sortablehover',
                opacity:        0.8,
                fx:             200,
                axis:           'vertically',
                opacity:        0.4,
                revert:         true,
                trim:           'art_',
                onchange:
                    function(list){
                        var arts = list[0].o[list[0].id];
                        var vals = new Array();
                        var a;
                        for (a in arts) {
                            vals[a] = arts[a].replace(/article./, '');
                        }
                        $('#id_article_order').attr('value', vals.join(','));
                    }
            });
    }
);
</script>
{% endblock %}

{% block after_related_objects %}
{% if original.articles %}
<style>
.sortableitem {
    cursor:move;
    width: 300px;
    list-style-type: none;
    }
</style>

<h4>Associated Articles</h4>
<ol class="articles" id="article_list">
{% for art in original.articles %}
    <li id="article.{{art.id}}" class="sortableitem">{{art.title}}</li>

{% endfor %}
</ol>
{% endif %}
{% endblock %}