saas-one/frontend/operation-web/app/view/viewport/ViewportModel.js

Ext.define('saas.view.viewport.ViewportModel', {
    extend: 'Ext.app.ViewModel',
    alias: 'viewmodel.viewport',

    data: {
        account: null
    },

    formulas: {
        company: function (get) {
            var account = get('account');
            return account && account.companies.find(function(c){
                return c.id == account.companyId;
            });
        },
        avatarUrl: function (get) {
            var account = get('account');
            return (account && account.avatarUrl) || 'resources/images/default/user-icon.png'
        }
    }    
});