Model View Controller ... and generic classes?

Question

I read some questions related to what I'm going to ask but I couldn't really figure it out. Let's revision together:

• Models are classes that manage datas from and to database. So they are classes database-related.
• View is the HTML part. Basically the layout of the page.
• Controller is the logic part of the application and uses models, gets/give input/output from/to the view.

Wonderful. What if I have to use a class that is not database related. Like a class for Sessions, a Template class or a pure logic Class that help me with some common logic function I use. Where should this classes go? Are they Model or just Library classes?

Answer 1

You put it on the model class. Model handles data logic and validations too.

Controllers only handles user input.

Views display what the user sees.