get_app_data function of OpenERP

get_app_data.js

        get_app_data: function() {
            var self = this;
                return $.when(
                    new db.web.Model("res.users").get_func("read")(this.session.uid, ['shop_id']).pipe(function(result) {
                        var shop_id = result['shop_id'][0];

                        new db.web.Model("sale.shop").get_func("search_read")([['id','=',shop_id]],[]).pipe(function(result) {
                        self.set({'shop': result[0]});
                        var company_id = result[0]['company_id'][0];
                        return new db.web.Model("res.company").get_func("read")(company_id, ['currency_id', 'name', 'phone']).pipe(function(result) {
                            self.set({'company': result});
                            var currency_id = result['currency_id'][0]
                            return new db.web.Model("res.currency").get_func("read")([currency_id],
                                    ['symbol', 'position']).pipe(function(result) {
                                self.set({'currency': result[0]});
                         
                            });
                        });
                    });
                    })
                ,
                new db.web.Model("res.users").get_func("read")(this.session.uid, ['name']).pipe(function(result) { self.set({'user': result}); })
                );
        },