multiselect requester

gistfile1.js

function sendMultiRequestFor(userIds, cfg, method) {

        var i = 1, width = 300, len = userIds.length, step = width / len,
            dataFn = cfg.dataFn || function(userId) {
                return {
                    user_id: userId
                }
            };

        Ext.MessageBox.show({
            title: cfg.msgBox.title,
            msg: cfg.msgBox.msg,
            progressText: cfg.msgBox.progressText,
            width: width,
            progress: true,
            closable: false
        });

        function progress() {
            Ext.MessageBox.updateProgress(i * step, Math.round(i * 100/ len) + '% been completed!');
            i++;
        }

        if (method !== 'post' && method !== 'update') {
            return $.when.apply(this, $.map(userIds, function(userId) {
                return $[method](cfg.url.supplant(dataFn(userId)), progress);
            }));
        } else {
            return $.when.apply(this, $.map(userIds, function(userId) {
                return $.post(cfg.url, dataFn(userId), progress);
            }));
        }

    }