Throughout the previous chapters, we wrote all the PHP code in only one class:
MyModComments. This class now handles install/uninstall actions, display on the front office, process triggered by the user's actions, and module configuration in the back office. If we write a more complex module, the code would become hard to read and upgrade. Another point is that, for now, we only added a display to the existing page (for example, product page), and didn't create a new page.
In this chapter, you will learn about controllers and object models. Controllers handle the display on the front and permit us to create a new page type. Object models handle all required database requests.
We will also ...