Book Image

Professional Plone 4 Development

Book Image

Professional Plone 4 Development

Overview of this book

A years of experience in Plone development and project management are combined with an approachable writing style to create an engaging and highly-informative guide to working with Plone. Professional Plone 4 Development stands as an excellent resource for developers of all levels. - Eric Steele, Plone Release Manager Plone is a web content management system that features among the top 2% of open source projects and is used by more than 300 solution providers in 57 countries. Its powerful workflow system, outstanding security track record, friendly user interface, elegant development model and vibrant community makes Plone a popular choice for building content-centric applications. By customising and extending the base platform, integrators can build unique solutions tailored to specific projects quickly and easily.If you want to create your own web applications and advanced websites using Plone 4, Professional Plone 4 Development is the book you need.The https://www.packtpub.com/Professional-Plone-web-applications-CMS/book first edition of this book remains one of the most widely read and recommended Plone books. This second edition is completely revised and up-to-date for Plone 4.1, covering new topics such as Dexterity, Diazo, jQuery and z3c.form, as well as improved ways of working with existing technologies such as Buildout, SQLAlchemy and the Pluggable Authentication Service. It retains the writing style and comprehensive approach that made the first edition so popular. Built around a realistic case study, Professional Plone 4 Development will take you from an understanding of Plone’s central concepts, through basic customization, theming, and custom development, to deployment and optimization. The book is divided into four sections: First, you will be introduced to Plone and the case study, and learn how to set up a development environment. The second section covers basic customization, including theming a Plone site using Diazo. The third section focuses on custom development – building new content types and user interfaces, customizing security and integrating with external databases. The final chapters cover deployment and performance optimization.
Table of Contents (6 chapters)

Chapter 9. Nine Core Concepts of Zope Programming

Now that we have learned how to set up and customize Plone, we are nearly ready to start developing brand new functionality for our application. This often means writing new content types, with custom views and forms to manage them. Sometimes, we will also need to create forms and pages that are not connected to any particular content type.

However, before we continue with Optilux Cinemas, we will take a look at the core principles that underpin Zope programming. Writing software for Zope is a little different from writing software for other web programming platforms such as PHP or ASP.NET. Having a solid understanding of Zope's core concepts will help you understand the examples which follow in this book, and help you apply what you learn to your own applications.

In this chapter, we will cover:

  • Object publishing and traversal, which is how Zope relates URLs to content objects
  • Persistence, Zope's transparent data storage...