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Desarrollo de una aplicación de Planillas con Zend Framework y Doctrine - Capitulo III

 

Integración de Doctrine 1 con Zend Framework

 

Bajar Doctrine
http://www.doctrine-project.org/downloads/Doctrine-1.2.4.tgz

*descomprimir y copiar archivos que estan en lib a
/projects/planillas/library

Crear siguiente estructura de directorios
/projects/planillas/doctrine/data/fixtures
                                                       /sql
                                               /migrations
                                               /schema
                                /bin

Editar el /projects/planillas/application/configs/application.ini

doctrine.connection_string = "mysql://root:alumno@127.0.0.1/planilla"
doctrine.data_fixtures_path = APPLICATION_PATH "/../doctrine/data/fixtures"
doctrine.models_path = APPLICATION_PATH "/models"
doctrine.migrations_path = APPLICATION_PATH "/../doctrine/migrations"
doctrine.sql_path = APPLICATION_PATH "/../doctrine/data/sql"
doctrine.yaml_schema_path = APPLICATION_PATH "/../doctrine/schema"
autoloaderNamespaces[] = "Doctrine"  


Editar el BootStrap de ZendFramework para integrar Doctrine en la aplicación
/projects/planillas/application/Bootstrap.php
<?php
class Bootstrap extends Zend_Application_Bootstrap_Bootstrap
{
   protected function _initDoctrine()
    {
        require_once 'Doctrine.php';        

        $loader = Zend_Loader_Autoloader::getInstance();
        //$loader->pushAutoloader(array('Doctrine', 'autoload'));
        $loader->registerNamespace('Doctrine')->pushAutoloader(array('Doctrine', 'modelsAutoload'), '');
        $doctrineConfig = $this->getOption('doctrine');
        $manager = Doctrine_Manager::getInstance();

        $manager->setAttribute(
            Doctrine::ATTR_MODEL_LOADING,
            Doctrine::MODEL_LOADING_CONSERVATIVE
        );    
 
        // Add models and generated base classes to Doctrine autoloader
        Doctrine::loadModels($doctrineConfig['models_path']);
        $manager->openConnection($doctrineConfig['connection_string']);    
        return $manager;
    }    
}

Crear script para doctrine (sirve para crear las clases del modelo, generar el sql, yaml, etc)

/projects/planillas/bin/doctrine
#!/usr/bin/env php
<?php
/**
 * Doctrine CLI script
 */
 
define('APPLICATION_ENV', 'development');
 
define('APPLICATION_PATH', realpath(dirname(__FILE__) . '/../application'));
set_include_path(implode(PATH_SEPARATOR, array(
    realpath(APPLICATION_PATH . '/../library'),
    realpath(APPLICATION_PATH . '/../library/vendor'),
    get_include_path(),
)));
 
require_once 'Zend/Application.php';

require_once APPLICATION_PATH ."/../library/Doctrine/Parser/sfYaml/sfYaml.php";
// Create application, bootstrap, and run
$application = new Zend_Application(
    APPLICATION_ENV,
    APPLICATION_PATH . '/configs/application.ini'
);

$application->getBootstrap()->bootstrap('doctrine');

if(!isset($argv[1])){
        echo "./doctrine importdata /path/to/yaml\n";
}

// Opcion para importar data de YAML
if(isset($argv[1]) && $argv[1]=="importdata"){
        if(is_file($argv[2])){
                Doctrine_Core::loadData($argv[2]);
                echo "Data Importada\n";
                exit();
        }else{
                echo "No existe el archivo ".$argv[2]."\n";
        }
}

$cli = new Doctrine_Cli($application->getOption('doctrine'));
$cli->run($_SERVER['argv']);
                           
$> cd /projects/planillas/bin
$> chmod 755 doctrine
$> ./doctrine

 

Crear Archivo YAML para las tablas del sistema

/projects/planillas/doctrine/schema/schema.yml

Usuario:
  connection: 0
  tableName: usuario
  columns:
    id_usuario:
      type: integer(4)
      fixed: false
      unsigned: false
      primary: true
      autoincrement: true
    username:
      type: string(50)
      fixed: false
      unsigned: false
      primary: false
      notnull: true
      autoincrement: false
    pass:
      type: string(32)
      fixed: false
      unsigned: false
      primary: false
      notnull: false
      autoincrement: false
    nombres:
      type: string(250)
      fixed: false
      unsigned: false
      primary: false
      notnull: false
      autoincrement: false
    apellidos:
      type: string(250)
      fixed: false
      unsigned: false
      primary: false
      notnull: false
      autoincrement: false

    perfil:
      type: string(30)
      fixed: false
      unsigned: false
      primary: false
      default: usuario
      notnull: false
      autoincrement: false
    fecha_creacion:
      type: timestamp(25)
      fixed: false
      unsigned: false
      primary: false
      notnull: false
      autoincrement: false

 

Crear archivo YAML para la insercion inicial de data

/projects/planillas/doctrine/data/fixtures/data.yml
Usuario:
  Usuario_1:
    username: admin
    pass: c6865cf98b133f1f3de596a4a2894630
    nombres: Tuxito
    apellidos: Developer

    perfil: admin
    fecha_creacion: '2011-07-09 16:06:56'


Crear la base de Datos
$> cd /projects/planillas/bin

$>./doctrine create-db

 

Generar clases del modelo a partir del archivo YAML

$> ./doctrine generate-models-yaml

 

Crear las Tablas de la Aplicacion leyendo el archivo yaml

$>./doctrine create-tables

 

Importar los datos Iniciales a la Aplicación

$> ./doctrine importdata /projects/planillas/doctrine/data/fixtures/data.yml

 

Verificar las clases de modelo

$> ls /projects/planillas/application/models

 

 

Autenticación y Sesiones con Zend Framework  y Doctrine

 

Creamos el controlador login

create controller login

 

Editamos el formulario

/projects/planillas/application/modules/admin/views/scripts/login/index.phtml

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<form action="" method="post" name="formlogin" id="formlogin">
    <table width="362" align="center">
    <tr>
      <td colspan="2"><div align="center"><strong><font size="4">Login</font></strong></div></td>
    </tr>
    <tr>
      <td width="112">User</td>
      <td width="372"><input name="username" type="text" id="username"></td>
    </tr>
    <tr>
      <td>Password</td>
      <td><input name="pass" type="password" id="pass"></td>
    </tr>
    <tr>
      <td> </td>
      <td><input type="submit" value="Aceptar" id="aceptar"></td>
    </tr>
  </table>
  <div align="center" id="mensaje">
  </div>
<div align="center"><h3><font color="#990000"><?php echo $this->mensaje;?></font></h3></div>
</form>

 

Deshabilitamos el Layout para que el formulario del Login se muestre antes de acceder al sistema

/projects/planillas/application/controllers/LoginController.php

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class LoginController extends Zend_Controller_Action
{
 
    public function init()
    {
        /* Initialize action controller here */
    }
 
    public function indexAction()
    {
       $this->_helper->layout()->disableLayout();
    }
 
 
}

 

Ahora editaremos el controlador para realizar la autenticación, usaremos el proveedor de Doctrine ZendX_Doctrine_Auth_Adapter

http://framework.zend.com/svn/framework/extras/incubator/library/ZendX/Doctrine/Auth/Adapter.php
 

/projects/planillas/library/ZendX/Doctrine/Auth/Adapter.php

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<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to Esta dirección de correo electrónico está protegida contra spambots. Usted necesita tener Javascript activado para poder verla. so we can send you a copy immediately.
 *
 * @category   ZendX
 * @package    ZendX_Doctrine
 * @subpackage ZendX_Doctrine_Auth_Adapter
 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: $
 */
 
 
/**
 * @see Zend_Auth_Adapter_Interface
 */
require_once 'Zend/Auth/Adapter/Interface.php';
 
/**
 * @see Doctrine_Connection
 */
require_once 'Doctrine/Connection.php';
 
/**
 * @see Zend_Auth_Result
 */
require_once 'Zend/Auth/Result.php';
 
 
/**
 * @category   Zend
 * @package    Zend_Auth
 * @subpackage Zend_Auth_Adapter
 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class ZendX_Doctrine_Auth_Adapter implements Zend_Auth_Adapter_Interface
{
    /**
     * Database Connection
     *
     * @var Doctrine_Connection
     */
    protected $_conn = null;
 
    /**
     * $_tableName - the table name to check
     *
     * @var string
     */
    protected $_tableName = null;
 
    /**
     * $_identityColumn - the column to use as the identity
     *
     * @var string
     */
    protected $_identityColumn = null;
 
    /**
     * $_credentialColumns - columns to be used as the credentials
     *
     * @var string
     */
    protected $_credentialColumn = null;
 
    /**
     * $_identity - Identity value
     *
     * @var string
     */
    protected $_identity = null;
 
    /**
     * $_credential - Credential values
     *
     * @var string
     */
    protected $_credential = null;
 
    /**
     * $_credentialTreatment - Treatment applied to the credential, such as MD5() or PASSWORD()
     *
     * @var string
     */
    protected $_credentialTreatment = null;
 
    /**
     * $_authenticateResultInfo
     *
     * @var array
     */
    protected $_authenticateResultInfo = null;
     
    /**
     * $_resultRow - Results of database authentication query
     *
     * @var array
     */
    protected $_resultRow = null;
 
    /**
     * __construct() - Sets configuration options
     *
     * @param  Doctrine_Connection      $zendDb
     * @param  string                   $tableName
     * @param  string                   $identityColumn
     * @param  string                   $credentialColumn
     * @param  string                   $credentialTreatment
     * @return void
     */
    public function __construct(Doctrine_Connection $conn = null, $tableName = null, $identityColumn = null,
                                $credentialColumn = null, $credentialTreatment = null)
    {
        if (null !== $conn) {
            $this->setConnection($conn);
        }
 
        if (null !== $tableName) {
            $this->setTableName($tableName);
        }
 
        if (null !== $identityColumn) {
            $this->setIdentityColumn($identityColumn);
        }
 
        if (null !== $credentialColumn) {
            $this->setCredentialColumn($credentialColumn);
        }
 
        if (null !== $credentialTreatment) {
            $this->setCredentialTreatment($credentialTreatment);
        }
    }
     
    /**
     * setConnection() - set the connection to the database
     *
     * @param  Doctrine_Connection $conn
     * @return ZendX_Doctrine_Auth_Adapter Provides a fluent interface
     */
    public function setConnection(Doctrine_Connection $conn)
    {
        $this->_conn = $conn;
        return $this;
    }
     
    /**
     * getConnection() - get the connection to the database
     *
     * @return Doctrine_Connection|null
     */
    public function getConnection()
    {
        if (null === $this->_conn &&
            null !== $this->_tableName) {
             
            $this->_conn = Doctrine::getConnectionByTableName($this->_tableName);
        }
         
        return $this->_conn;
    }
 
    /**
     * setTableName() - set the table name to be used in the select query
     *
     * @param  string $tableName
     * @return ZendX_Doctrine_Auth_Adapter Provides a fluent interface
     */
    public function setTableName($tableName)
    {
        $this->_tableName = $tableName;
        return $this;
    }
 
    /**
     * setIdentityColumn() - set the column name to be used as the identity column
     *
     * @param  string $identityColumn
     * @return ZendX_Doctrine_Auth_Adapter Provides a fluent interface
     */
    public function setIdentityColumn($identityColumn)
    {
        $this->_identityColumn = $identityColumn;
        return $this;
    }
 
    /**
     * setCredentialColumn() - set the column name to be used as the credential column
     *
     * @param  string $credentialColumn
     * @return ZendX_Doctrine_Auth_Adapter Provides a fluent interface
     */
    public function setCredentialColumn($credentialColumn)
    {
        $this->_credentialColumn = $credentialColumn;
        return $this;
    }
 
    /**
     * setCredentialTreatment() - allows the developer to pass a parameterized string that is
     * used to transform or treat the input credential data
     *
     * In many cases, passwords and other sensitive data are encrypted, hashed, encoded,
     * obscured, or otherwise treated through some function or algorithm. By specifying a
     * parameterized treatment string with this method, a developer may apply arbitrary SQL
     * upon input credential data.
     *
     * Examples:
     *
     *  'PASSWORD(?)'
     *  'MD5(?)'
     *
     * @param  string $treatment
     * @return ZendX_Doctrine_Auth_Adapter Provides a fluent interface
     */
    public function setCredentialTreatment($treatment)
    {
        $this->_credentialTreatment = $treatment;
        return $this;
    }
 
    /**
     * setIdentity() - set the value to be used as the identity
     *
     * @param  string $value
     * @return ZendX_Doctrine_Auth_Adapter Provides a fluent interface
     */
    public function setIdentity($value)
    {
        $this->_identity = $value;
        return $this;
    }
 
    /**
     * setCredential() - set the credential value to be used, optionally can specify a treatment
     * to be used, should be supplied in parameterized form, such as 'MD5(?)' or 'PASSWORD(?)'
     *
     * @param  string $credential
     * @return ZendX_Doctrine_Auth_Adapter Provides a fluent interface
     */
    public function setCredential($credential)
    {
        $this->_credential = $credential;
        return $this;
    }
 
    /**
     * getResultRowObject() - Returns the result row as a stdClass object
     *
     * @param  string|array $returnColumns
     * @param  string|array $omitColumns
     * @return stdClass|boolean
     */
    public function getResultRowObject($returnColumns = null, $omitColumns = null)
    {
        if (!$this->_resultRow) {
            return false;
        }
         
        $returnObject = new stdClass();
 
        if (null !== $returnColumns) {
 
            $availableColumns = array_keys($this->_resultRow);
            foreach ( (array) $returnColumns as $returnColumn) {
                if (in_array($returnColumn, $availableColumns)) {
                    $returnObject->{$returnColumn} = $this->_resultRow[$returnColumn];
                }
            }
            return $returnObject;
 
        } elseif (null !== $omitColumns) {
 
            $omitColumns = (array) $omitColumns;
            foreach ($this->_resultRow as $resultColumn => $resultValue) {
                if (!in_array($resultColumn, $omitColumns)) {
                    $returnObject->{$resultColumn} = $resultValue;
                }
            }
            return $returnObject;
 
        } else {
 
            foreach ($this->_resultRow as $resultColumn => $resultValue) {
                $returnObject->{$resultColumn} = $resultValue;
            }
            return $returnObject;
 
        }
    }
 
    /**
     * authenticate() - defined by Zend_Auth_Adapter_Interface.  This method is called to
     * attempt an authentication.  Previous to this call, this adapter would have already
     * been configured with all necessary information to successfully connect to a database
     * table and attempt to find a record matching the provided identity.
     *
     * @throws Zend_Auth_Adapter_Exception if answering the authentication query is impossible
     * @return Zend_Auth_Result
     */
    public function authenticate()
    {
        $this->_authenticateSetup();
        $dbSelect = $this->_authenticateCreateSelect();
        $resultIdentities = $this->_authenticateQuerySelect($dbSelect);
         
        if ( ($authResult = $this->_authenticateValidateResultset($resultIdentities)) instanceof Zend_Auth_Result) {
            return $authResult;
        }
         
        $authResult = $this->_authenticateValidateResult(array_shift($resultIdentities));
        return $authResult;
    }
 
    /**
     * _authenticateSetup() - This method abstracts the steps involved with making sure
     * that this adapter was indeed setup properly with all required peices of information.
     *
     * @throws Zend_Auth_Adapter_Exception - in the event that setup was not done properly
     * @return true
     */
    protected function _authenticateSetup()
    {
        $exception = null;
         
        if ($this->getConnection() === null) {
            $exception = 'A database connection was not set, nor could one be created.';
        } elseif ($this->_tableName == '') {
            $exception = 'A table must be supplied for the ZendX_Doctrine_Auth_Adapter authentication adapter.';
        } elseif ($this->_identityColumn == '') {
            $exception = 'An identity column must be supplied for the ZendX_Doctrine_Auth_Adapter authentication adapter.';
        } elseif ($this->_credentialColumn == '') {
            $exception = 'A credential column must be supplied for the ZendX_Doctrine_Auth_Adapter authentication adapter.';
        } elseif ($this->_identity == '') {
            $exception = 'A value for the identity was not provided prior to authentication with ZendX_Doctrine_Auth_Adapter.';
        } elseif ($this->_credential === null) {
            $exception = 'A credential value was not provided prior to authentication with ZendX_Doctrine_Auth_Adapter.';
        }
 
        if (null !== $exception) {
            /**
             * @see Zend_Auth_Adapter_Exception
             */
            require_once 'Zend/Auth/Adapter/Exception.php';
            throw new Zend_Auth_Adapter_Exception($exception);
        }
         
        $this->_authenticateResultInfo = array(
            'code'     => Zend_Auth_Result::FAILURE,
            'identity' => $this->_identity,
            'messages' => array()
            );
             
        return true;
    }
 
    /**
     * _authenticateCreateSelect() - This method creates a Zend_Db_Select object that
     * is completely configured to be queried against the database.
     *
     * @return Doctrine_Query
     */
    protected function _authenticateCreateSelect()
    {
        // build credential expression
        if (empty($this->_credentialTreatment) || (strpos($this->_credentialTreatment, "?") === false)) {
            $this->_credentialTreatment = '?';
        }
         
        $dbSelect = Doctrine_Query::create($this->getConnection())
                    ->from($this->_tableName)
                    ->select('*, ('.$this->_credentialColumn.' = '.str_replace('?',
                        $this->getConnection()->quote($this->_credential), $this->_credentialTreatment).') AS zend_auth_credential_match')
                    ->addWhere($this->_identityColumn .' = ?', $this->_identity);
 
        return $dbSelect;
    }
 
    /**
     * _authenticateQuerySelect() - This method accepts a Doctrine_Query object and
     * performs a query against the database with that object.
     *
     * @param Doctrine_Query $dbSelect
     * @throws Zend_Auth_Adapter_Exception - when a invalid select object is encoutered
     * @return array
     */
    protected function _authenticateQuerySelect(Doctrine_Query $dbSelect)
    {
        try {
            $resultIdentities = $dbSelect->execute()->toArray();
        } catch (Exception $e) {
            /**
             * @see Zend_Auth_Adapter_Exception
             */
            require_once 'Zend/Auth/Adapter/Exception.php';
            throw new Zend_Auth_Adapter_Exception('The supplied parameters to Zend_Auth_Adapter_Doctrine_Record failed to '
                                                . 'produce a valid sql statement, please check table and column names '
                                                . 'for validity.');
        }
        return $resultIdentities;
    }
 
    /**
     * _authenticateValidateResultSet() - This method attempts to make certian that only one
     * record was returned in the result set
     *
     * @param array $resultIdentities
     * @return true|Zend_Auth_Result
     */
    protected function _authenticateValidateResultSet(array $resultIdentities)
    {
 
 
        if (count($resultIdentities) < 1) {
            $this->_authenticateResultInfo['code'] = Zend_Auth_Result::FAILURE_IDENTITY_NOT_FOUND;
            $this->_authenticateResultInfo['messages'][] = 'A record with the supplied identity could not be found.';
            return $this->_authenticateCreateAuthResult();
        } elseif (count($resultIdentities) > 1) {
            $this->_authenticateResultInfo['code'] = Zend_Auth_Result::FAILURE_IDENTITY_AMBIGUOUS;
            $this->_authenticateResultInfo['messages'][] = 'More than one record matches the supplied identity.';
            return $this->_authenticateCreateAuthResult();
        }
 
        return true;
    }
 
    /**
     * _authenticateValidateResult() - This method attempts to validate that the record in the
     * result set is indeed a record that matched the identity provided to this adapter.
     *
     * @param array $resultIdentity
     * @return Zend_Auth_Result
     */
    protected function _authenticateValidateResult($resultIdentity)
    {
        if ($resultIdentity['zend_auth_credential_match'] != '1') {
            $this->_authenticateResultInfo['code'] = Zend_Auth_Result::FAILURE_CREDENTIAL_INVALID;
            $this->_authenticateResultInfo['messages'][] = 'Supplied credential is invalid.';
            return $this->_authenticateCreateAuthResult();
        }
 
        unset($resultIdentity['zend_auth_credential_match']);
        $this->_resultRow = $resultIdentity;
 
        $this->_authenticateResultInfo['code'] = Zend_Auth_Result::SUCCESS;
        $this->_authenticateResultInfo['messages'][] = 'Authentication successful.';
        return $this->_authenticateCreateAuthResult();
    }
     
    /**
     * _authenticateCreateAuthResult() - This method creates a Zend_Auth_Result object
     * from the information that has been collected during the authenticate() attempt.
     *
     * @return Zend_Auth_Result
     */
    protected function _authenticateCreateAuthResult()
    {
        return new Zend_Auth_Result(
            $this->_authenticateResultInfo['code'],
            $this->_authenticateResultInfo['identity'],
            $this->_authenticateResultInfo['messages']
            );
    }
 }

 

Luego editamos el controlador del Login

/projects/planillas/application/controllers/LoginController.php

 

?
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class LoginController extends Zend_Controller_Action {
 
    public function init()
    {              
         // Iniciando la sesion
         $this->_session = new Zend_Session_Namespace('planilla');
         $this->auth = Zend_Auth::getInstance();            
    }
 
    public function indexAction() {
        $this->_helper->layout()->disableLayout();
        // Verificando si el usuario ya se logueo
        if (!$this->auth->hasIdentity()) {
            $this->view->mensaje = "";
            // verificando si se envio el formulario
            if ($this->getRequest()->getParam('username') && $this->getRequest()->getParam('pass')) {
                $loginUsername = $this->getRequest()->getParam('username', '');
                $loginPassword = $this->getRequest()->getParam('pass', '');
                // verificando si los campos del formulario no esten vacios
                if (empty($loginUsername) || empty($loginPassword)) {
                    $this->view->mensaje = "Llene todos los campos de user y Password";
                } else {
                    // Proceso de Autenticación;
                    require "ZendX/Doctrine/Auth/Adapter.php";
                    $myAuth = Zend_Auth::getInstance();
                    // do the authentication
                    $authAdapter = $this->_getAuthAdapter($loginUsername, $loginPassword);
                    $result = $myAuth->authenticate($authAdapter);
                    if (!$result->isValid()) {
                        $this->view->mensaje = "Usuario o Password Incorrecto";
                    } else {
                        // borranbdo el password de la sesion
                        $identity = $authAdapter->getResultRowObject(null, 'pass');
                        $myAuth->getStorage()->write($identity);
                        // Registrado variables de sesion
                        $this->_session->nombre = "Gran Administrador";
                        $this->_session->username = $loginUsername;
                        $this->_session->rol = "admin";
                        // Redireccionando al index del modulo admin
                        $this->_redirect('/admin');
                    }
                }
            }
        } else {
            // Si el usuario ya esta logueado se le redirecciona al modulo admin
            $this->_redirect('/admin');
        }
    }
 
    protected function _getAuthAdapter($username, $password) {
        $authAdapter = new ZendX_Doctrine_Auth_Adapter(Doctrine::getConnectionByTableName('usuario'));
        $authAdapter->setTableName('Usuario u')
                ->setIdentityColumn('u.username')
                ->setCredentialColumn('u.pass')
                ->setCredentialTreatment('md5(?)')
                ->setIdentity($username)
                ->setCredential($password);
        return $authAdapter;
    }
}
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