Feeds

Put some MVC in your PHP

Trial by separation

Providing a secure and efficient Helpdesk

Create a "controllers" directory and a "views" directory in the Apache web server document root htdocs by default. We shall create the view scripts in the "views" directory and controllers in the "controllers" directory. Create action controller, "database", for the business logic of the MVC application. Create a DatabaseController class that extends the Zend_Controller_Action class and add action functions insertAction, selectAction, updateAction, and deleteAction to the class.

The controller actions will be invoked from view scripts, which provide a user interface to specify the table row to be added, selected, updated and deleted. Create the view scripts insertView.php, selectView.php, updateView.php, and deleteView.php in the "views" directory. The view scripts and other resource files are available in a zipped resources file here.

Add a row

First, we shall add a row to the Catalog table. In the insertView.php add a form with input fields for the table row to be added. The "action" attribute of the <form> element specifies "database/insert", which corresponds to the "insert" action of the "database" controller. In the DatabaseController insertAction function create a Zend_Db adapter, which represents a connection with Oracle database, using the Zend_Db factory.

$params = array ('host'=>'localhost','username'=>'OE','password'=>'pw','dbname'=>'orcl');
$db=Zend_Db::factory('Oracle', $params); 

The first argument specifies the base name for the adapter class - "Oracle" for the Oracle database. The second argument specifies the adapter parameters. Retrieve the input fields specified in the insertView.php using $_POST['field'] and create an associative array, $row, for the columns that constitute a row in the database table. Specify the database table to be updated and insert the new row using the insert() method of the Zend_Db adapter class.

$table = 'Catalog';
$rowsAffected = $db->insert($table, $row); 

The first argument of the insert() method is the database table and the second argument is the associative array that maps column names to values. Invoke the insertView.php with URL http://localhost/views/insertView.php. To add a row specify the column values and click on create.

adding a row

Adding a row

Retrieve a row

Next, retrieve a row from the catalog table using the Zend Framework. Create a Zend_Db_Select object from the Zend_Db adapter object using the select() method.

$select = $db->select();

The Zend_Db_Select object is used to construct a SQL SELECT statement. Specify the FROM clause using the from() method and the WHERE clause using the where() method.

$select->from('Catalog', '*');
$select->where('ID = ?', $_POST['id']); 

Create the SQL query string from the Zend_Db_Select object using the _toString() method. Run the SQL query using the fetchAll() method and query results will be returned as a row set.

$sql = $select->__toString();
$rowset = $db->fetchAll($sql); 

Create a Zend_View object to render a view script and specify the directory containing the view scripts. The Zend_View class represents the "view" component of the model-view-controller pattern.

$view = new Zend_View();
$view->setScriptPath('views'); 

Beginner's guide to SSL certificates

More from The Register

next story
ONE MILLION people already running Windows 10
A third of them are doing it in VMs, but early feedback focuses on frippery
Netscape Navigator - the browser that started it all - turns 20
It was 20 years ago today, Marc Andreeesen taught the band to play
Sway: Microsoft's new Office app doesn't have an Undo function
Content aggregation, meet the workplace ... oh
Sign off my IT project or I’ll PHONE your MUM
Honestly, it’s a piece of piss
Do Moan! MONSTER 6-day EMAIL OUTAGE hits Domain Monster
Customers freaked out by frightful service
Return of the Jedi – Apache reclaims web server crown
.london, .hamburg and .公司 - that's .com in Chinese - storm the web server charts
NetWare sales revive in China thanks to that man Snowden
If it ain't Microsoft, it's in fashion behind the Great Firewall
prev story

Whitepapers

Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Win a year’s supply of chocolate
There is no techie angle to this competition so we're not going to pretend there is, but everyone loves chocolate so who cares.
Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Saudi Petroleum chooses Tegile storage solution
A storage solution that addresses company growth and performance for business-critical applications of caseware archive and search along with other key operational systems.