Question

How do I write my own MVC framework?

I want to create my own MVC (Model-View-Controller) framework but don’t know how to start. I understand the basic idea of MVC but need help figuring out how to structure it, manage routes, and connect everything. Can someone explain the steps or give a simple guide on how to build one from scratch?

Answer 1

Let’s see what MVC stands for :

• Modal : Represents the data and logic of the application
• View : The user interface that displays the data
• Controller : Handles user input and updates the model and view accordingly

Creating a custom MVC framework can be a rewarding experience, but it’s also a significant undertaking. It requires a deep understanding of design patterns , programming principles , and the specific requirements of your application.

Key Components and Structure

1. Request Handling :

• A central dispatcher or router to intercept incoming requests
• Mapping of URLs to specific controllers and actions

1. Model :

• Classes representing data entities
• Methods for retrieving , creating , updating , and deleting data
• Consider using database or other data storage mechanism

1. View :

• Templates or files that define the UI (e.g., HTML etc.)
• Placeholders for dynamic content to be filled by the controller
• Techniques like templating engines

1. Controller:

• Handles user requests and interacts with the model and view
• Receives input , processes it , and updates the model as needed
• Renders the appropriate view with the updated data

  from flask import Flask, render_template 
  
  app = Flask(__name__)
  
  class User:
  def __init__(self , id , name ):
  self.id = id
  self.name = name 
  
  @app.route('/')
  def index():
  users = [User(1, "Neha"),User (2, "Rohan")]
  return render_template('index.html' , users=users)
  
  if __name__ == '__main__':
  app.run()