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Tutorials

Detailed tutorials.
Working with Forms in Grok
A walkthrough of the basics of automatically generating HTML forms using Grok, as well as a discussion of a few more advanced Form manipulations.
A Grok-Centric Explanation of Adaptation
Adaptation is a central concept in the Zope 3 Component Architecture. This explanation approaches it from a Grok perspective.
Adder: an adding machine sample application
The most basic Grok app that is still of some use: an adding machine with tape.
Contribute to the Grok Documentation
Guidelines, policies and help for how you can contribute to the Grok documentation effort.
Grok Poller Tutorial
This tutorial shows how to implement a simple polling application using Grok.
Installing and setting up Grok under mod_wsgi
Grok can run behind any WSGI server. This tutorial will show how to install Grok behind the Apache web server and mod_wsgi on a brand new Linux virtual server.
Introduction to zc.buildout
Jim Fulton's tutorial for using buildout, originally given at DZUG 2007
Macros with Grok
Macros are a way to define a chunk of presentation in one template, and share it in others. Changes to the macro are immediately reflected in all of the places, that share it.
Making a website that uses layers to enable a mobile enabled version of the site
As an example application we're going to develop a very simple site that uses macros and then later add a layer dedicated for mobile phone browsing without having to put in "if" statements in your templates to accommodate for the differences you'll want to apply.
Musical Performance Organizer - Part 1
The first in a series of tutorials that will build a reasonably complex application, starting from a simple prototype and evolving it into a finished application. The tutorial will touch on many practical aspects of building the application and demonstrate how to combine the various components that are available in Grok into a finished product.
Navigating To Transient Objects Tutorial
Thanks to the magic of this database, your web apps can create Python objects that are automatically saved to disk and are available every time your application runs. In particular, every grok.Model and grok.Container object you generate can be written safely to your application's Data.fs file. But sometimes you need to create objects that do not persist in the ZODB, wonderful though it is.
Permissions Tutorial
Zope 3 and Grok come with authorization capabilities out of the box. While a vanilla Zope 3 application protects all content by default and performs authorization checks on the content objects themselves, Grok allows access to everything unless you explicitly restrict it. The authorization checks here are done based on the Views used to access (display/manipulate) the content.
Using YUI on Grok
In this tutorial you'll be learning how to use the Yahoo! User Interface Library, or YUI in short in your Grok project. YUI is a JavaScript and CSS library providing all sorts of handy components that you can use to make you site work an look better without too much effort, and in a cross-browser compatible way. In the process, you'll also be learning some basic uses of megrok.layout, megrok.navigation and JSON.