ITELEC 4100 (MVC FRAMEWORK)

SIR SANTI

MVC Framework

Architectural pattern that separates an application into three logical components: Model

MVC Usage

MVC is one of the most frequently used industry-standard web development frameworks

Model Component

Corresponds to all data-related logic that the user works with and can retrieve

View Component

User Interface for the users of the application

Controller Component

Acts as a bridge between View and Model — handles user requests

Benefits of MVC

Separation of business logic and presentation

Benefit 2

Allows independent changing/updating of model and view

Benefit 3

Enables code reusability

Benefit 4

Improves code maintainability

Benefit 5

Increases speed of application development

Benefit 6

Allows division of tasks among programmers

Disadvantage 1

Complex even for small projects

Disadvantage 2

Requires proper understanding to avoid misuse

Disadvantage 3

Has slight performance overhead compared to procedural code

Choosing MVC Framework

We must choose a programming language and MVC framework before development

Popular MVC Framework: ASP.NET

Supports multiple programming languages (C# most popular) and is cross-platform

Popular MVC Framework: Django

Uses Python and includes many universal modules

Popular MVC Framework: Ruby on Rails

Good for business and high-speed development

Popular MVC Framework: Laravel

Uses PHP and offers high security

Laravel Framework

Laravel is a web application framework with expressive

Why Laravel?

OOP approach

Why Laravel? (2)

Built-in authentication

Why Laravel? (3)

Templating engine (Blade)

Why Laravel? (4)

Eloquent ORM

Why Laravel? (5)

Security via csrf_token

Why Laravel? (6)

Excellent documentation

PHP for Selecting Laravel Version

Choose compatible PHP version for your Laravel release

Routing (Basics)

Defines how your app responds to different URLs

Routing Methods

Determine HTTP methods (GET

CSRF Protection

Prevents Cross-Site Request Forgery attacks using a CSRF “_token” for each session

CSRF Tokens

Required for POST

Redirect Routes

Redirects a user to another URL or route

View Routes

Displays a specific view when accessed

Route Parameters

Allows dynamic data in routes (e.g.

Route Parameter Constraints

Restricts route parameters using conditions

Route Name

Assigns name to routes for easy reference

Route Group

Groups routes sharing attributes (like middleware)

Route Prefixes

Adds common prefixes to grouped routes

Form Method Spoofing

Allows HTML forms to simulate PUT

Controllers

Acts as intermediary between Model and View

Single Action Controller

Controller that handles only one action or method

Resource Controller

Generates CRUD routes and methods automatically

HTTP Request

Laravel handles requests using OOP-based Request class

Blade Templating Engine

Simple yet powerful templating system used for Laravel views

Validation

Ensures data is correct before saving to the database

Validation (Return in View)

Displays validation errors in view after submission

Validation Rules

Set of predefined rules for validating form input

Eloquent ORM

Object-Relational Mapper that simplifies database interactions

Eloquent Example

Model example with table

Eloquent Relationships

Defines relations between tables like One To One

Eloquent Relationship Types

Has One Through

Getting Started with Laravel

Requires Composer

Creating New Application

Use command: composer create-project laravel/laravel=

Running Laravel App

Use terminal: cd then run php artisan serve

Access Laravel App

Open browser and go to http://127.0.0.1:8000