mremi/url-shortener-bundle

Implementation of UrlShortener library for Symfony2

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Language: PHP

v1.0.2 2013-10-18 21:37 UTC

README

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This bundle implements the UrlShortener library for Symfony2.

License

This bundle is available under the MIT license.

Prerequisites

This version of the bundle requires Symfony 2.1+.

Basic Docs

Installation

Installation is a quick 5 step process:

  1. Download MremiUrlShortenerBundle using composer
  2. Enable the Bundle
  3. Create your Link class (optional)
  4. Configure the MremiUrlShortenerBundle
  5. Update your database schema (optional)

Step 1: Download MremiUrlShortenerBundle using composer

Add MremiUrlShortenerBundle in your composer.json:

{
    "require": {
        "mremi/url-shortener-bundle": "dev-master"
    }
}

Now tell composer to download the bundle by running the command:

$ php composer.phar update mremi/url-shortener-bundle

Composer will install the bundle to your project's vendor/mremi directory.

Step 2: Enable the bundle

Enable the bundle in the kernel:

<?php
// app/AppKernel.php

public function registerBundles()
{
    $bundles = array(
        // ...
        new Mremi\UrlShortenerBundle\MremiUrlShortenerBundle(),
    );
}

Step 3: Create your Link class (optional)

The goal of this bundle is not to persist some Link class to a database, but you can if you want just by following next instructions. So if you don't need to do this, you can jump to the next step.

Your first job, then, is to create the Link class for your application. This class can look and act however you want: add any properties or methods you find useful. This is your Link class.

The bundle provides base classes which are already mapped for most fields to make it easier to create your entity. Here is how you use it:

  1. Extend the base Link class from the Entity folder
  2. Map the id field. It must be protected as it is inherited from the parent class
  3. Add index on long_url column: Doctrine does not allow to specify index size in the mapping, so you have to write it manually in a migration class.

Note:

For now, only Doctrine ORM is handled by this bundle (any PR will be appreciated :) ).

<?php
// src/Acme/UrlShortenerBundle/Entity/Link.php

namespace Acme\UrlShortenerBundle\Entity;

use Mremi\UrlShortenerBundle\Entity\Link as BaseLink;

class Link extends BaseLink
{
    /**
     * @var integer
     */
    protected $id;
}
<!-- src/Acme/UrlShortenerBundle/Resources/config/doctrine/Link.orm.xml -->
<?xml version="1.0" encoding="UTF-8"?>
<doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping"
                  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                  xsi:schemaLocation="http://doctrine-project.org/schemas/orm/doctrine-mapping
                  http://doctrine-project.org/schemas/orm/doctrine-mapping.xsd">

    <entity name="Acme\UrlShortenerBundle\Entity\Link"
            table="link">

        <id name="id" column="id" type="integer">
            <generator strategy="AUTO" />
        </id>

    </entity>
</doctrine-mapping>
<?php
// app/DoctrineMigrations/VersionYYYYMMDDHHIISS.php

namespace Application\Migrations;

use Doctrine\DBAL\Migrations\AbstractMigration,
    Doctrine\DBAL\Schema\Schema;

class VersionYYYYMMDDHHIISS extends AbstractMigration
{
    public function up(Schema $schema)
    {
        // customize index size as you want...
        $this->addSql("CREATE INDEX idx_url_shortener_link_long_url ON link (long_url(20))");
    }

    public function down(Schema $schema)
    {
        $this->addSql("DROP INDEX idx_url_shortener_link_long_url ON link;");
    }

Step 4: Configure the MremiUrlShortenerBundle

Fow now, you just have to configure your Bit.ly username and password.

# app/config/config.yml
mremi_url_shortener:
    link_class: Mremi\UrlShortener\Model\Link

    providers:
        bitly:
            enabled:             true
            username:            your_bitly_username
            password:            your_bitly_password
            options:
                connect_timeout: 1
                timeout:         1

        google:
            enabled:             true
            api_key:             your_api_key
            options:
                connect_timeout: 1
                timeout:         1

Step 5: Update your database schema (optional)

If you configured the data storage (step 3), you can now update your database schema.

If you want to first see the create table query:

$ app/console doctrine:schema:update --dump-sql

Then you can run it:

$ app/console doctrine:schema:update --force

Chain providers

One service allow you to shorten/expand URL, to use like this:

<?php

$linkManager   = $container->get('mremi_url_shortener.link_manager');
$chainProvider = $container->get('mremi_url_shortener.chain_provider');

$link = $linkManager->create();
$link->setLongUrl('http://www.google.com');

$chainProvider->getProvider('bitly')->shorten($link);

$chainProvider->getProvider('google')->expand($link);

Custom provider

You can add your own provider to the chain providers:

  1. Create a service which implements \Mremi\UrlShortener\Provider\UrlShortenerProviderInterface
  2. Add the tag mremi_url_shortener.provider
<?xml version="1.0" ?>

<container xmlns="http://symfony.com/schema/dic/services"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">

    <services>
        <service id="acme.custom_provider" class="Acme\YourBundle\Provider\CustomProvider">
            <tag name="mremi_url_shortener.provider" />
        </service>
    </services>
</container>

Test configured providers

You can now test the providers you configured with the following command line:

$ app/console mremi:url-shortener:test

Retrieve link

You can retrieve some links using these finders:

<?php

$linkManager = $container->get('mremi_url_shortener.link_manager');

$shortened = $linkManager->findOneByProviderAndShortUrl('bitly', 'http://bit.ly/ze6poY');

$expanded = $linkManager->findOneByProviderAndLongUrl('google', 'http://www.google.com');

If you configured the data storage (steps 3 & 5), finders look first in database ; if the link exists then return it, otherwise an API call will be done and link will be saved.

Else this will consume an API call.

Twig functions

You can also simply shorten/expand a URL from a twig file. It should be used with caution if no data storage is configured, because it's not HTTP friendly.

{# src/Acme/YourBundle/Resources/views/index.html.twig #}

{{ mremi_url_shorten('bitly', 'http://www.google.com') }}
{{ mremi_url_expand('google', 'http://goo.gl/fbsS') }}

Profiler

If your are in debug mode (see your front controller), you can check in the web debug toolbar the configured providers and some statistics from the current HTTP request: number of requests per provider, consumed memory, request duration...

Screenshot

Contribution

Any question or feedback? Open an issue and I will try to reply quickly.

A feature is missing here? Feel free to create a pull request to solve it!

I hope this has been useful and has helped you. If so, share it and recommend it! :)

@mremitsme