递归：python+easyui实现tree

Posted 2020-11-21 yanhuaqiang

后台部分：
@csrf_exempt
def getTree(request):
    row = serializers.serialize("json", models.Tree.objects.all())
    rows = []
    for r in json.loads(row):
        ra = r[‘fields‘]
        rows.append(ra)
    tree = tree_data(‘0‘, rows)
    print(tree)
    return HttpResponse(json.dumps(tree), content_type="application/json")


def tree_data(pid, tree_list):
    tree = []
    for t in tree_list:
        if pid == str(t[‘pid‘]):
            children_map = {}
            domain_id = str(t[‘num‘])
            pid = str(t[‘pid‘])
            name = t[‘text‘]
            children_map[‘id‘] = domain_id
            children_map[‘text‘] = name
            children_map[‘state‘] = ‘closed‘
            tree.append(children_map)
            children_map[‘children‘] = tree_data(domain_id, tree_list)
    return tree

页面：

<script type="text/javascript">

    $(document).ready(function () {
        $.ajax({
            url:‘/getTree/‘,
            type:‘post‘,
            dataType:‘json‘,
            success:function(data){
                console.log(data);
                $(‘#tt‘).tree({
                    data:
                    data
                    ,
                    onClick : function (node) {
                        console.log(node);
                        var text = node[‘text‘]
                        console.log(text);
                        if ($("#tab").tabs(‘exists‘, text)) {
                            $(‘#tab‘).tabs(‘select‘, text);
                        } else {
                            $(‘#tab‘).tabs(‘add‘, {
                                title : text,
                                closable : true,
                                content : text
                            });
                        }
                    }
                });
            },
            error: function (jqXHR, textStatus, errorThrown) {
                                alert(‘失败！‘);
                            }
        });
    })
</script>