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The Example Extension¶
Our first Extension will show an inventory list of products, which we created before in a backend list-module. Each product is marked by a title, a short description and a quantity as the number of pieces in stock. The following steps are necessary for implementation:
Create directory tree and the minimal configuration files
Translate the problem domain in an abstract domain model
Configuration of persistence layer
Definition of database tables
Configure the display of backend forms
Create repositories for product objects
Define the application flow inside the extension (create controller and action methods)
Realize design with HTML-templates
Configure the plugin for list display
Install and test the extension
We choose the step order inside the example extension, so the connection will stay visible and a »natural« growth of extension and knowledge is given. After gathering the first experience in programming with Extbase, you probably will work in another and quicker order. Furthermore, in the future you will have the Extension Builder, a convenient tool to create the base of an extension which is outlined in chapter 10.