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How to add a new model

  1. Create the models folder

    If you haven't already, you will need to create the models folder. This is where our model files will go. In our testing, we created:

  2. Create <view>.php within models folder

    Each component view can have a corresponding model. In this tutorial we are creating a model for our helloworld view, so we will be creating


    In this file, place the following code:

    // No direct access to this file
    defined('_JEXEC') or die('Restricted access');
    // import Joomla modelitem library
     * HelloWorld Model
    class HelloWorldModelHelloWorld extends JModelItem
             * @var string msg
            protected $msg;
             * Get the message
             * @return string The message to be displayed to the user
            public function getMsg() 
                    if (!isset($this->msg)) 
                            $this->msg = 'This message has been brought to you by the hello world model getMsg function.';
                    return $this->msg;
  3. Update your view.html.php file to call the getMsg() function

    In our components/com_helloworld/views/helloworld/view.html.php file,
    we originally created the "Hello World" message via the following line:

    $this->msg = 'Hello World';

    We will replace this line of code with the following:

    $this->msg = $this->get('Msg');

    The view.html.php file will now look like the following:

    // No direct access to this file
    defined('_JEXEC') or die('Restricted access');
    // import Joomla view library
     * HTML View class for the HelloWorld Component
    class HelloWorldViewHelloWorld extends JViewLegacy
            // Overwriting JView display method
            function display($tpl = null) 
                    // Assign data to the view
                    $this->msg = $this->get('Msg');
                    // Display the view

Our new model in action

As you can see in the screenshot below, our new model comes into play when our view calls one of the model's functions.

View When our view calls $this->get('Msg');
Model ... the following fuction is run in our model: getMsg()
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Continued Education in Course How to create a Joomla 3 Component
You are viewing Section 8: How to add the default Model to your Joomla 3 component
Section 7: Creating a Menu Item for your Joomla 3 Component

Joomla Community Google+ Hangout #3

June 3rd, 2014

Thank you @RustyJoomla for letting me speak on the Joomla Community Google+ Hangout!

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n/a Points
2017-09-11 2:41 am

good work, thx for this.

next step (pls :) -> build router and redirect between views with parameter

n/a Points
2017-09-10 5:56 am

very useful and understandable tutorial. thx for this, pls continue.

n/a Points
2017-04-23 2:15 pm

The best explanation i ever found. Thank you.

Pleas continue.

n/a Points
2017-03-29 8:42 am

Really good set of tutorials.

Can I suggest , helper files for the next as shis would finsish off a lot of the front end component process and be really helpful addition the the model

n/a Points
2016-07-08 3:24 pm

thank u for the joomla component graphical explanation...

many many thanks 



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