Zend Framework 1.8 workshop

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An introduction to Zend Framework 1.8 using Zend_Tool, Zend_Application, a simple DAO and a very simple model that uses that DAO.
In the end you have a fully working application

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Zend Framework 1.8 workshop

  1. 1. Zend Framework 1.8 workshop Zend Framework Presentation Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  2. 2. Zend Framework 1.8 workshop About Me: PHP5 Zend Certified Engineer (PHP5 ZCE) Zend Framework Certified Engineer (ZCE-ZF) ZF Contributor since 2008 Freelance Consultant PHP Community active member Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  3. 3. Zend Framework 1.8 workshop Zend Framework • Full Stack Framework • Component Library Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  4. 4. Zend Framework 1.8 workshop How to Get It? • Grab it from the download page: http://framework.zend.com/download/latest • Through Subversion: http://framework.zend.com/svn/framework/standard/trunk/ Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  5. 5. Zend Framework 1.8 workshop How To Install? Add it to your php.ini include_path directive include_path = .:/usr/local/lib/php:/PathToZendFrameworkLibrary That’s it! Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  6. 6. Zend Framework 1.8 workshop Starting A New Project With Zend_Tool First requirements: • For *nix environments copy the zf.sh and zf.php from the ZF/bin To the same directory as your PHP binary • For Windows: •copy the zf.php and zf.bat to the same directory as your PHP binary •add the php path to your PATH environment Var: # Right-click My Computer and select |Properties. # Select the Environment page. # In the System Variables area, click on PATH. # Add the php path to the end in the format VALUE1;VALUE2;c:php # Click Apply. # The changes take effect immediately. Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  7. 7. Zend Framework 1.8 workshop Creating the project “MyProject” $ zf create project /path/to/non-existent-dir-called-MyProject Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  8. 8. Zend Framework 1.8 workshop Adding a “MyProject” vhost Testing environment httpd.conf or httpd-vhosts.conf: <VirtualHost *:80> ServerName MyProject DocumentRoot absolute-path-to-MyProject-folder ErrorLog logsMyProject-error.log CustomLog logsMyProject-access.log common <Directory /> Options FollowSymLinks AllowOverride All Order allow,deny Allow from all Satisfy all </Directory> </VirtualHost> Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  9. 9. Zend Framework 1.8 workshop For windows: Add the following line to the /etc/host file 127.0.0.1 MyProject Restart apache, fire up the browser and go to: http://MyProject Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  10. 10. Zend Framework 1.8 workshop Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  11. 11. Zend Framework 1.8 workshop Creating an Action + View Go to the MyProject directory and issue the following command to create the helloAction in the IndexController and corresponding view: $ zf create action hello index For a full list of commands simply visit: http://framework.zend.com/manual/en/zend.tool.project.create-a-project.html Or issue the command: $ zf --help Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  12. 12. Zend Framework 1.8 workshop Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  13. 13. Zend Framework 1.8 workshop Creating a Module and Controller $ zf create module admin $ zf create controller index 1 admin Note: Trying to create a controller that already exists in another Module might result in an error. Depending on the Zend_Tool Verion you have. The solution is to apply the patch from ZF Issue Tracker: http://framework.zend.com/issues/browse/ZF-6853 Note: If you applied this patch, make sure all controller names in the admin module start with Admin_ Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  14. 14. Zend Framework 1.8 workshop Registering the Module class Bootstrap extends Zend_Application_Bootstrap_Bootstrap { protected function _initAutoloadModuleAdmin() { $autoloader = new Zend_Application_Module_Autoloader(array( 'namespace' => 'Admin', 'basePath' => APPLICATION_PATH.'/modules/admin', )); return $autoloader; } } The method is called automatically by Zend_Application as it starts with _init. You can choose the remainder of the method name as you like. Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  15. 15. Zend Framework 1.8 workshop Registering the Module myProject/application/configs/application.ini resources.frontController.moduleDirectory = APPLICATION_PATH "/modules" Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  16. 16. Zend Framework 1.8 workshop Setting up the Mysql Database Add to configs/application.ini [production] =============================== resources.db.adapter = PDO_MYSQL resources.db.params.host = localhost resources.db.params.username = nick resources.db.params.password = 12345 resources.db.params.dbname = myproject Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  17. 17. Zend Framework 1.8 workshop Create the database table CREATE TABLE users ( id int(11) NOT NULL auto_increment, username varchar(100) NOT NULL, pwd varchar(32) NOT NULL, firstname varchar(20) NOT NULL, PRIMARY KEY (id) ); Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  18. 18. Zend Framework 1.8 workshop Populate the table INSERT INTO users (username, pwd, firstname) VALUES ('NickBelhomme', md5('hello'), 'Nick'), ('ChanieNavez', md5('strong'), 'Chantal'), ('ElvisP', md5('presley'), 'Elvis'); Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  19. 19. Zend Framework 1.8 workshop The Model + DAO Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  20. 20. Zend Framework 1.8 workshop myProject/application/modules/admin/models/dao/Interface.php interface Admin_Model_Dao_Interface { public function find($id); public function insert($username, $pwd, $firstname); public function update($id, $username, $pwd, $firstname); public function delete($id); public function findAll(); } Common interface between all DAOs. Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  21. 21. Zend Framework 1.8 workshop myProject/application/modules/admin/models/dao/UserDB.php class Admin_Model_Dao_UserDB extends Zend_Db_Table implements Admin_Model_Dao_Interface { protected $_name = 'users'; public function find($id) { Very Simple DAO $id = (int)$id; $row = $this->fetchRow('id = ' . $id); (Data Access Object) if (!$row) { throw new Exception("Count not find row $id"); } return $row; } public function insert($username, $pwd, $firstname) { $data = array( 'username' => $username, 'pwd' => $this->hashPassword($pwd), 'firstname' => $firstname, ); parent::insert($data); } //... } Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  22. 22. Zend Framework 1.8 workshop myProject/application/modules/admin/models/Dao/UserDB.php class Admin_Model_Dao_UserDB extends Zend_Db_Table implements Admin_Model_Dao_Interface { //… public function update($id, $username, $pwd, $firstname) { $data = array( Very Simple DAO 'username' => $username, 'pwd' => $this->hashPassword($pwd), (Data Access Object) 'firstname' => $firstname, To explain the principle ); of an extra layer parent::update($data, 'id = '. (int)$id); } public function delete($id) { parent::delete('id =' . (int)$id); } public function findAll() { return $this->fetchAll(); } protected function hashPassword($pwd) { return md5($pwd); } } ?> Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  23. 23. Zend Framework 1.8 workshop myProject/application/modules/admin/models/User.php class Admin_Model_User { const DAO_CLASS = 'Admin_Model_Dao_UserDB'; protected $dao; public function __construct() { $daoClassName = self::DAO_CLASS; $this->dao = new $daoClassName(); The Model } using the DAO. public function find($id) { return $this->dao->find($id); Easy Switching between } Different data resources public function insert($username, $pwd, $firstname) { return $this->dao->insert($username, $pwd, $firstname); } public function update($id, $username, $pwd, $firstname) { return $this->dao->update($id, $username, $pwd, $firstname); } // ... } Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  24. 24. Zend Framework 1.8 workshop myProject/application/modules/admin/models/User.php <?php class Admin_Model_User { The Model // ... using the DAO. public function delete($id) { Easy Switching between return $this->dao->delete($id); Different data resources } public function findAll() { return $this->dao->findAll(); } } Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  25. 25. Zend Framework 1.8 workshop The Actions and Views Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  26. 26. Zend Framework 1.8 workshop Setting up the admin actions $ zf create action add index 1 admin $ zf create action edit index 1 admin $ zf create action delete index 1 admin Again if you are using a version of Zend_Tool which isn’t fully module Aware you can patch the Zend_Tool_Project_Provider_Action with if (self::hasResource($this->_loadedProfile, $name, $controllerName, $module)) Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  27. 27. Zend Framework 1.8 workshop The Admin_IndexController indexAction public function indexAction() { $users = new Admin_Model_User(); $this->view->users = $users->findAll(); } Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  28. 28. Zend Framework 1.8 workshop The corresponding index.phtml view script: myProject/application/modules/admin/views/scripts/index/index.phtml <p><a href="<?php echo $this->url(array('controller'=>'index', 'action'=>'add'));?>">Add new user</a></p> <table> <tr> <th>Username</th> <th>First Name</th> <th>&nbsp;</th> </tr> <?php foreach($this->users as $user) : ?> <tr> <td><?php echo $this->escape($user->username);?></td> <td><?php echo $this->escape($user->firstname);?></td> <td> <a href="<?php echo $this->url(array('controller'=>'index', 'action'=>'edit', 'id'=>$user->id));?>">Edit</a> <a href="<?php echo $this->url(array('controller'=>'index', 'action'=>'delete', 'id'=>$user->id));?>">Delete</a> </td> </tr> <?php endforeach; ?> </table> Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  29. 29. Zend Framework 1.8 workshop Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  30. 30. Zend Framework 1.8 workshop The Admin_IndexController deleteAction REST: public function deleteAction() irreversible { action use if ($this->getRequest()->isPost()) { POST not $del = $this->getRequest()->getPost('del'); GET if ($del == 'Yes') { $id = $this->getRequest()->getPost('id'); $users = new Admin_Model_User(); $users->delete($id); } $this->_redirect('/admin/'); } else { $id = $this->_getParam('id', 0); $users = new Admin_Model_User(); $this->view->user = $users->find($id); } } Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  31. 31. Zend Framework 1.8 workshop The corresponding delete.phtml view script: myProject/application/modules/admin/views/scripts/index/delete.phtml <p>Are you sure that you want to delete '<?php echo $this->escape($this->user['username']); ?>' aka '<?php echo $this->escape($this->user['firstname']); ?>'? </p> <form action="<?php echo $this->url(array('action'=>'delete')); ?>" method="post"> <fieldset> <input type="hidden" name="id" value="<?php echo $this->escape($this->user['id']); ?>" /> <input type="submit" name="del" value="Yes" /> <input type="submit" name="del" value="No" /> </fieldset> </form> Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  32. 32. Zend Framework 1.8 workshop Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  33. 33. Zend Framework 1.8 workshop The Admin_IndexController addAction public function addAction() { if ($this->getRequest()->isPost()) { $action = $this->getRequest()->getPost('action'); if ($action == 'add') { $username = $this->getRequest()->getPost('username'); $pwd = $this->getRequest()->getPost('pwd'); $firstname = $this->getRequest()->getPost('firstname'); $users = new Admin_Model_User(); $users->insert($username, $pwd, $firstname); } $this->_redirect('/admin/'); } } Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  34. 34. Zend Framework 1.8 workshop The corresponding add.phtml view script: myProject/application/modules/admin/views/scripts/index/add.phtml <h2>Add a new User</h2> <form action="<?php echo $this->url(array('action'=>'add')); ?>" method="post"> <fieldset> username: <input type="text" name="username"><br/> password: <input type="password" name="pwd"><br/> firstname: <input type="text" name="firstname"><br/> <input type="submit" name="action" value="add" /> </fieldset> </form> Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  35. 35. Zend Framework 1.8 workshop Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  36. 36. Zend Framework 1.8 workshop The Admin_IndexController editAction public function editAction() { if ($this->getRequest()->isPost()) { $action = $this->getRequest()->getPost('action'); if ($action == 'edit') { $id = $this->getRequest()->getPost('id'); $username = $this->getRequest()->getPost('username'); $pwd = $this->getRequest()->getPost('pwd'); $firstname = $this->getRequest()->getPost('firstname'); $users = new Admin_Model_User(); $users->update($username, $pwd, $firstname); } $this->_redirect('/admin/'); } else { $id = $this->_getParam('id', 0); $users = new Admin_Model_User(); $this->view->user = $users->find($id); } } Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  37. 37. Zend Framework 1.8 workshop The corresponding edit.phtml view script: myProject/application/modules/admin/views/scripts/index/edit.phtml <h2>Edit User: <?php echo $this->escape($this->user->username); ?></h2> <form action="<?php echo $this->url(array('action'=>'edit')); ?>" method="post"> <fieldset> <input type="hidden" name="id" value="<?php echo $this->escape($this->user->id); ?>"> username: <input type="text" name="username" value="<?php echo $this->escape($this->user->username); ?>"><br/> password: <input type="password" name="pwd"><br/> firstname: <input type="text" name="firstname" value="<?php echo $this->escape($this->user->firstname); ?>"><br/> <input type="submit" name="action" value="edit" /> </fieldset> </form> Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  38. 38. Zend Framework 1.8 workshop Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  39. 39. Zend Framework 1.8 workshop Authentication: Zend_Auth Authentication is loosely defined as determining whether an entity actually is what it purports to be (i.e., identification), based on some set of credentials. http://framework.zend.com/manual/en/zend.auth.html#zend.auth.introduction Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  40. 40. Zend Framework 1.8 workshop Append the DAO and User Classes interface Admin_Model_Dao_Interface { // … public function findCredentials($username, $pwd); } class Admin_Model_Dao_UserDB extends Zend_Db_Table implements Admin_Model_Dao_Interface { // … public function findCredentials($username, $pwd) { $select = $this->select()->where('username = ?', $username) ->where('pwd = ?', $this->hashPassword($pwd)); $row = $this->fetchRow($select); if($row) { return $row; } return false; } } Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  41. 41. Zend Framework 1.8 workshop Append the DAO and User Classes class Admin_Model_User { // ... public function findCredentials($username, $password) { return $this->dao->findCredentials($username, $password); } } Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  42. 42. Zend Framework 1.8 workshop Always use a vendor or project prefix And inform the autoloader of library prefixes Prepend the application bootstrap class Bootstrap extends Zend_Application_Bootstrap_Bootstrap { protected function _initAutoloadModuleDefault() { $autoloader = new Zend_Application_Module_Autoloader(array( 'namespace' => 'Myp', 'basePath' => dirname(__FILE__) )); return $autoloader; } //... } Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  43. 43. Zend Framework 1.8 workshop Create an application model: The Auth Adapter myProject/application/models/AuthAdapter.php class Myp_Model_AuthAdapter implements Zend_Auth_Adapter_Interface { protected $username; protected $password; protected $user; public function __construct($username, $password) { $this->username = $username; $this->password = $password; $this->user = new Admin_Model_User(); } public function authenticate() { $match = $this->user->findCredentials($this->username, $this->password); if(!$match) { $result = new Zend_Auth_Result(Zend_Auth_Result::FAILURE_CREDENTIAL_INVALID, null); } else { $user = current($match); $result = new Zend_Auth_Result(Zend_Auth_Result::SUCCESS, $user); } return $result; } } Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  44. 44. Zend Framework 1.8 workshop The IndexController loginAction $ zf create action login index 1 Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  45. 45. Zend Framework 1.8 workshop The IndexController loginAction public function loginAction() { $auth = Zend_Auth::getInstance(); if(Zend_Auth::getInstance()->hasIdentity()) { $this->_redirect('/index/hello'); } else if ($this->getRequest()->isPost()) { $action = $this->getRequest()->getPost('action'); if ($action == 'login') { $username = $this->getRequest()->getPost('username'); $pwd = $this->getRequest()->getPost('pwd'); $authAdapter = new Myp_Model_AuthAdapter($username, $pwd); $result = $auth->authenticate($authAdapter); if(!$result->isValid()) { switch ($result->getCode()) { case Zend_Auth_Result::FAILURE_CREDENTIAL_INVALID: $this->view->error = 'user credentials not found'; } } else { $this->_redirect('/index/hello'); } } } } Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  46. 46. Zend Framework 1.8 workshop The corresponding login.phtml view script: myProject/application/views/scripts/index/login.phtml <h2>Login</h2> <form action="<?php echo $this->url(array('action'=>'login')); ?>" method="post"> <fieldset> username: <input type="text" name="username"><br/> password: <input type="password" name="pwd"><br/> <div><?php echo $this->escape($this->error);?></div> <input type="submit" name="action" value="login" /> </fieldset> </form> Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  47. 47. Zend Framework 1.8 workshop Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  48. 48. Zend Framework 1.8 workshop The IndexController helloAction public function helloAction() { if(Zend_Auth::getInstance()->hasIdentity()) { $this->view->user = Zend_Auth::getInstance()->getIdentity(); } } Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  49. 49. Zend Framework 1.8 workshop The corresponding hello.phtml view script: myProject/application/views/scripts/index/hello.phtml <?php if(isset($this->user)):?> welcome <?php echo $this->escape($this->user['firstname']); ?>, to the MyProject application. <?php else: ?> you need to login first. <a href="<?php echo $this->url(array('action' => 'login')); ?>">login</a> <?php endif; ?> Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  50. 50. Zend Framework 1.8 workshop Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  51. 51. Zend Framework 1.8 workshop And that is Authentication. if(Zend_Auth::getInstance()->hasIdentity()) Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  52. 52. Zend Framework 1.8 workshop What about? •Authorization (Zend_Acl) •Filter Input, Escape Output? •Input Validation (Zend_Validate) •Input filtering (Zend_Filter) •Dynamic Forms (Zend_Form) And all the other great stuff???!!!! Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  53. 53. Zend Framework 1.8 workshop There is always next time! 1 hour courses, remember??? ;) Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer
  54. 54. Zend Framework 1.8 workshop Resources •http://blog.nickbelhomme.com •http://www.slideshare.net/weierophinney/zend-framework-workshop-dpc09 •http://en.wikipedia.org/wiki/Zend_Framework •http://blog.astrumfutura.com/archives/373-The-M-in-MVC-Why-Models- are-Misunderstood-and-Unappreciated.html Source code of this workshop available at: http://blog.nickbelhomme.com/wp-content/uploads/workshopzf1.8.zip Nick Belhomme 17 June 2009 PHP5 Zend Certified Engineer + Zend Framework Certified Engineer

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