Introduction

This is a tutorial & how-to on creating your first project using the fully featured PHP Doctrine ORM. This tutorial uses the the ready to go Doctrine sandbox package. It requires a web server, PHP and PDO + Sqlite.

Download

To get started, first download the latest Doctrine sandbox package: http://www.doctrine-project.org/download. Second, extract the downloaded file and you should have a directory named Doctrine-x.x.x-Sandbox. Inside of that directory is a simple example implementation of a Doctrine based web application.

Running the CLI

If you execute the doctrine shell script from the command line it will output the following:

$ ./doctrine Doctrine Command Line Interface

./doctrine build-all ./doctrine build-all-load ./doctrine build-all-reload ./doctrine compile ./doctrine create-db ./doctrine create-tables ./doctrine dql ./doctrine drop-db ./doctrine dump-data ./doctrine generate-migration ./doctrine generate-migrations-db ./doctrine generate-migrations-models ./doctrine generate-models-db ./doctrine generate-models-yaml ./doctrine generate-sql ./doctrine generate-yaml-db ./doctrine generate-yaml-models ./doctrine load-data ./doctrine migrate ./doctrine rebuild-db

Defining Schema

Below is a sample yaml schema file to get started. You can place the yaml file in schemas/schema.yml. The command line interface looks for all *.yml files in the schemas folder.

User: columns: id: primary: true autoincrement: true type: integer(4) username: string(255) password: string(255) relations: Groups: class: Group refClass: UserGroup foreignAlias: Users

Group: tableName: groups columns: id: primary: true autoincrement: true type: integer(4) name: string(255)

UserGroup: columns: user_id: integer(4) group_id: integer(4) relations: User: onDelete: CASCADE Group: onDelete: CASCADE

Test Data Fixtures

Below is a sample yaml data fixtures file. You can place this file in data/fixtures/data.yml. The command line interface looks for all *.yml files in the data/fixtures folder.

User: zyne: username: zYne- password: changeme Groups: [founder, lead, documentation] jwage: username: jwage password: changeme Groups: [lead, documentation]

Group: founder: name: Founder lead: name: Lead documentation: name: Documentation

Building Everything Now that you have written your schema files and

data fixtures, you can now build everything and begin working with your models . Run the command below and your models will be generated in the models folder.

$ ./doctrine build-all-reload build-all-reload - Are you sure you wish

to drop your databases? (y/n) y build-all-reload - Successfully dropped database for connection sandbox at path /Users/jwage/Sites/doctrine/branches/0.10/tools/sandbox/sandbox.db build-all-reload - Generated models successfully from YAML schema build-all-reload - Successfully created database for connection sandbox at path /Users/jwage/Sites/doctrine/branches/0.10/tools/sandbox/sandbox.db build-all-reload - Created tables successfully build-all-reload - Data was successfully loaded

Take a peak in the models folder and you will see that the model classes were generated for you. Now you can begin coding in your index.php to play with Doctrine itself. Inside index.php place some code like the following for a simple test.

Running Tests

$query = new Doctrine_Query(); $query->from('User u, u.Groups g');

$users = $query->execute();

echo '

'; print_r($users->toArray(true));
The print_r() should output the following data. You will notice that
this is the data that we populated by placing the yaml file in the
data/fixtures files. You can add more data to the fixtures and rerun the
build-all-reload command to reinitialize the database.
Array ( [0] => Array ( [id] => 1 [username] => zYne- [password] =>

changeme [Groups] => Array ( [0] => Array ( [id] => 1 [name] => Founder
)
                [1] => Array
                    (
                        [id] => 2
                        [name] => Lead
                    )

                [2] => Array
                    (
                        [id] => 3
                        [name] => Documentation
                    )

            )

    )

[1] => Array
    (
        [id] => 2
        [username] => jwage
        [password] => changeme
        [Groups] => Array
            (
                [0] => Array
                    (
                        [id] => 2
                        [name] => Lead
                    )

                [1] => Array
                    (
                        [id] => 3
                        [name] => Documentation
                    )

            )

    )
)
You can also issue DQL queries directly to your database by using the
dql command line function. It is used like the following.
jwage:sandbox jwage$ ./doctrine dql FROM User u, u.Groups g dql -

executing: FROM User u, u.Groups g () dql - - dql - id: 1 dql -
username: zYne- dql - password: changeme dql - Groups: dql - - dql - id:
1 dql - name: Founder dql - - dql - id: 2 dql - name: Lead dql - - dql -
id: 3 dql - name: Documentation dql - - dql - id: 2 dql - username:
jwage dql - password: changeme dql - Groups: dql - - dql - id: 2 dql -
name: Lead dql - - dql - id: 3 dql - name: Documentation

User CRUD
Now we can demonstrate how to implement Doctrine in to a
super simple module for managing users and passwords. Place the
following code in your index.php and pull it up in your browser. You
will see the simple application.
require_once('config.php');

Doctrine_Core::loadModels('models');
`module = isset(` REQUEST['module']) ?$REQUEST['module']:'users'; `action = isset(` REQUEST['action'])? $REQUEST['action']:'list';
if ($module == 'users') { `userId = isset(` REQUEST['id']) &&$REQUEST['id'] > 0 ? $_REQUEST['id']:null; $userTable =
Doctrine_Core::getTable('User');
if ($userId === null) {
    $user = new User();
} else {
    $user = $userTable->find($userId);
}

switch ($action) {
    case 'edit':
    case 'add':
        echo '

              

                
User
                
                Username 
                Password 
                
              
              
';
        break;
    case 'save':
        $user->merge($_REQUEST['user']);
        $user->save();

        header('location: index.php?module=users&action=edit&id=' . $user->id);
        break;
    case 'delete':
        $user->delete();

        header('location: index.php?module=users&action=list');
        break;
    default:
        $query = new Doctrine_Query();
        $query->from('User u')
              ->orderby('u.username');

        $users = $query->execute();

        echo '
';
        foreach ($users as $user) {
            echo '
' . $user->username . '   [X]
';
        }
        echo '
';
}

echo '

        
Add
        
List
      
';
} else { throw new Exception('Invalid module'); }