2. A URL Shortener | CodeIgniter Web Application Blueprints

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Table Of Contents

CodeIgniter Web Application Blueprints

By : Robert Foster

3.8 (6)

CodeIgniter Web Application Blueprints

3.8 (6)

By: Robert Foster

Overview of this book

If you are a PHP programmer or developer looking for a framework to quickly develop your applications, this book is for you. The prerequisites needed would be prior experience with CodeIgniter.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

1. Introduction and Shared Project Resources

1. Introduction and Shared Project Resources

Common resources

Downloading CodeIgniter

Installing Twitter Bootstrap

Removing index.php from the address bar

Installing and using Sparks

Creating a shared header and footer view

Common language items

Creating the MY_Controller file

Autoloading common system resources

Security considerations

Summary

2. A URL Shortener

2. A URL Shortener

Design and wireframes

Creating the database

Adjusting the routes.php file

Creating the model

Creating views

Creating controllers

Creating the language file

Putting it all together

Summary

3. Discussion Forum

3. Discussion Forum

Design and wireframes

Creating the database

Adjusting the config.php file

Adjusting the routes.php file

Creating the models

Creating views

Creating the controllers

Creating the language file

Putting it all together

Summary

4. Creating a Photo-sharing Application

4. Creating a Photo-sharing Application

Design and wireframes

Creating the database

Adjusting the config.php and autoload.php files

Adjusting the routes.php file

Creating the model

Creating the views

Creating the controllers

Creating the language file

Putting it all together

Summary

5. Creating a Newsletter Signup

5. Creating a Newsletter Signup

Introduction

Design and wireframes

Creating the database

Adjusting the routes.php file

Creating the model

Creating the views

Creating the controllers

Creating the language file

Putting it all together

Summary

6. Creating an Authentication System

6. Creating an Authentication System

Introduction

Design and wireframes

Creating the database

Adjusting the config.php file

Adjusting the routes.php file

Creating the models

Creating the views

Creating the controllers

Creating the language file

Putting it all together

Summary

7. Creating an E-Commerce Site

7. Creating an E-Commerce Site

Introduction

Design and wireframes

Creating the database

Adjusting the config.php file

Adjusting the routes.php file

Creating the model

Creating the views

Creating the controllers

Creating the language file

Putting it all together

Summary

8. Creating a To-do List

8. Creating a To-do List

Introduction

Design and wireframes

Creating the database

Adjusting the config.php file

Adjusting the routes.php file

Creating the model

Creating views

Creating the controller

Creating the language file

Putting it all together

Summary

9. Creating a Job Board

9. Creating a Job Board

Introduction

Design and wireframes

Creating the database

Adjusting the config.php file

Adjusting the routes.php file

Creating the model

Creating views

Creating the controller

Creating the language file

Putting it all together

Summary

Index

Index

Creating the model

The Urls_model contains three functions; obviously it contains our __construct() function but we're not focusing on that at the moment as it's not doing anything except referencing its parent.

Instead, let's look at the two functions save_url() and fetch_url(). As their names suggest, one saves information to the database and the other fetches information from it. For now, let's go and create the code and we'll discuss in detail what each function does later: Create the urls_model.php model file and add the following code to it:

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Urls_model extends CI_Model {
  function __construct() {
    parent::__construct();
  }

  function save_url($data) {
    /*
    Let's see if the unique code already exists in 
    the database.  If it does exist then make a new 
    one and we'll check if that exists too.  
    Keep making new ones until it's unique.  
    When we make one that's unique, use it...

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