Alvin Kato
A silent rebel
Design Patterns
Great software
Is n't just built. Its designed.
A layman's definition of design
Design in its simplest form is simply problem solving.
Design Patterns
A design pattern is a general reusable solution to a commonly occurring problem within a given context in software design.
Why Design Patterns?
- No need to reinvent the wheel
- Saves time
- Increases productivity
MVC
Model - View - Controller
Before we go further
Design patterns are language agnostics. They can be used in any language so long as the basic concepts are understood.
Models
Business logic and interaction with the database
For example, a social network's models include users(usernames, email, passwords, bio e.t.c)
Views
Views refer to the presentation of content
We use views to organize what the display looks like. In some cases this is where the user has interaction with software.
Controllers
Controllers are unique in the sense that they seat in between models and views
Think of them as middle men. Whats crucial about them is that they handle requests.
MVC in practise
Rails Structure of MVC
Text
app
-> Models
-- user.rb
-> Views
--layouts
--users
--show.html.erb
--index.html.erb
--edit.html.erb
--new.html.erb
-> Controllers
--users_controllers.rbQuestions?
Design Patterns: Introduction to MVC
By Alvin Kato
Design Patterns: Introduction to MVC
A mini introduction to MVC using Rails
