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Posts tagged with: module

Magento 2 overriding rewriting model

Today we talk about Magento 2 overriding rewriting model. In our daily coding routine we need to customization with core files. For that we need to overriding or rewrite the core classes because modify the core classes is not good practice. If you modify the code classes when you update the new version your code will be loss. So today we learn Magento 2 overriding rewriting model. In start we are overriding core Product model. We are jut checking our rewriting model is working or not. You can modify the model as you want by following this tutorial. But first you need to know How to create module in Magneto 2.For any suggestions & question, please feel free to drop a comment.

Overriding or Rewrite Magento 2 Model

Magento 2 Models play an even bigger role, as they typically contain the “Business Logic” that’s often relegated to the Controller or Helper methods in other PHP MVC frameworks. Now we start to overriding or rewriting core Product model. The model we are overriding is Product Model.
Step 1.

Create a di.xml file in a following directory QaisarSatti/HelloWorld/etc/

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
<preference for="Magento\Catalog\Model\Product" type="QaisarSatti\HelloWorld\Model\Rewrite\Catalog\Product" />
</config>

Step 2
The step2 to overriding or rewriting Magento2 model is to create a Product.php helper file in the following directory QaisarSatti/HelloWorld/Model/Rewrite/Catalog

<?php
/**
* Catalog Product Rewrite Model
*
* @category QaisarSatti
* @package QaisarSatti_HelloWorld
* @author Muhammad Qaisar Satti
*
*/

namespace QaisarSatti\HelloWorld\Model\Rewrite\Catalog;
class Product extends \Magento\Catalog\Model\Product
{
public function __construct()
{
echo "Overrding/ Rewrite Working"; die();
}
}

As following code you can rewrite or override any Magento 2 model using the same method.

Author: Qaisar Satti
Category: Magento 2
Last Modified: July 12, 2018


Magento 2 get latest order collection

Today we will talk about Magento 2 get latest order collection. We will learn how to get latest order collection. You can simply add the setOrder entity_id to DESC or use created_at to DESC to your order collection. If you want to add limit simply add setpagesize

setPageSize(yournumberhere);

protected $_orderFactory;
public function __construct(

\Magento\Sales\Model\ResourceModel\Order\CollectionFactory $orderFactory,

)
{

$this->_orderFactory = $orderFactory;

}
public function getLatestOrders() {
$orderCollection =$this->_orderFactory->create()->addFieldToSelect(array('*')); $orderCollection->setOrder('entity_id','DESC');
return $orderCollection;
}
Author: Qaisar Satti
Category: Magento 2
Last Modified: July 12, 2018


Magento 2 add pagination custom collection

Today we talk about Magento 2 add pagination custom collection. we’ll talk about how to get custom collection with magento 2 default pagination or use pager with custom collection.For any suggestions & question, please feel free to drop a comment.

First Step:

Get collection for pagination.

public function getNews() {
 //get values of current page
$page=($this->getRequest()->getParam('p'))? $this->getRequest()->getParam('p') : 1;
 //get values of current limit
$pageSize=($this->getRequest()->getParam('limit'))? $this->getRequest()->getParam('limit') : 1;
$newsCollection = $this->newscollectionFactory->create(); $newsCollection->addFieldToFilter('is_active',1); $newsCollection->setOrder('title','ASC'); $newsCollection->setPageSize($pageSize); $newsCollection->setCurPage($page);
return $newsCollection;
}

Second Step:
Now simply add the pagination to you collection

protected function _prepareLayout() {
parent::_prepareLayout();
$this->pageConfig->getTitle()->set(__('News'));
 if ($this->getNews()) {
$pager = $this->getLayout()->createBlock( 'Magento\Theme\Block\Html\Pager', 'qaisarsatti.news' )->setAvailableLimit(array(5=>5,10=>10,15=>15))->setShowPerPage(true)->setCollection( $this->getNews() );
$this->setChild('pager', $pager);
$this->getNews()->load();
}
return $this;
}

Third Step:
Now create a function to get the child block of pager.

public function getPagerHtml() {
return $this->getChildHtml('pager');
 }

Fourth Step:
in your phtml file add this code then pagination will be showing with limits.

<?php if ($block->getPagerHtml()): ?>
<div class="order-products-toolbar toolbar bottom">
<?php echo $block->getPagerHtml(); ?>
</div>
<?php endif ?>
Author: Qaisar Satti
Category: Magento 2
Last Modified: July 12, 2018


Magento 2 get controller module action and router

Today we talk about Magento 2 get controller module action and router.We’ll talk about how to get controller name, module name, action name and router name programmatically in Magento 2.For any suggestions & question, please feel free to drop a comment.

Controller name:
Controller is a class located in module Controller folder. Here is Controller file of module.

$this->getRequest()->getControllerName();

Module name:

$this->getRequest()->getModuleName();

Action name:
Action name is located in module Controller file. Here is Action Method controller.

$this->getRequest()->getActionName();

Router name:
Router are defined in module router.xml file. Here is Action Method controller.

$this->getRequest()->getRouteName();

Example:

If you test this code for home page it will give you following output.

Controller:index
Action:index
Route:cms
module:cms

You can use this code in both phtml and controller file.

Author: Qaisar Satti
Category: Magento 2
Last Modified: July 12, 2018


Magento 2 create a module or extension

In start of learning Magento 2 every developer must need to learn how to create a simple module or extension. But before start it you must have initial knowledge of Php too. Here it is easy way to create the extension or module in magento 2. In this custom module we have to learn how to create router,controller,block,xml layout and phtml files. Combination of these file will make a simple Hello World module. That will listed in admin module list and show the output on fronteend So lets start the fun learning of magento 2. Before we start playing with magento 2 we must do these tasks disabled cache from admin panel or you can do it via command (php bin/magento cache:disable) and set the developer mode on by following command (php bin/magento deploy:mode:set developer).
Note: Check code folder in your app directory. If not have code folder then create it.

First Step:

First step is register your module with registration.php . The file location will be

app/code/QaisarSatti/HelloWorld/registration.php

<?php
/**
* Simple Hello World Module
*
* @category QaisarSatti
* @package QaisarSatti_HelloWorld
* @author Muhammad Qaisar Satti
* @Email [email protected]
*
*/

\Magento\Framework\Component\ComponentRegistrar::register(
\Magento\Framework\Component\ComponentRegistrar::MODULE,
'QaisarSatti_HelloWorld',
__DIR__
);

Second Step:

Create module.xml file. In this file you will define your module name and version. The file location will be

app/code/QaisarSatti/HelloWorld/etc/module.xml

<?xml version="1.0"?>
<!--/**
* Simple Hello World Module
*
* @category QaisarSatti
* @package QaisarSatti_HelloWorld
* @author Muhammad Qaisar Satti
* @Email [email protected]
*
*/ -->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
<module name="QaisarSatti_HelloWorld" schema_version="0.0.1" setup_version="0.0.1"/>
</config>

Third Step:

Create the block file.The file location will be

app/code/QaisarSatti/HelloWorld/Block/HelloWorld.php

<?php
/**
* Simple Hello World Module
*
* @category QaisarSatti
* @package QaisarSatti_HelloWorld
* @author Muhammad Qaisar Satti
* @Email [email protected]
*
*/

namespace QaisarSatti\HelloWorld\Block;
class HelloWorld extends \Magento\Framework\View\Element\Template
{
public function _prepareLayout()
{
parent::_prepareLayout();
$this->pageConfig->getTitle()->set(__('First Hello World Module'));
return $this;
}
}

Fourth Step:

Create the controller file.The file location will be

app/code/QaisarSatti/HelloWorld/Controller/Index/Index.php

<?php
/**
* Simple Hello World Module
*
* @category QaisarSatti
* @package QaisarSatti_HelloWorld
* @author Muhammad Qaisar Satti
* @Email [email protected]
*
*/

namespace QaisarSatti\HelloWorld\Controller\Index;
class Index extends \Magento\Framework\App\Action\Action
{
public function execute()
{
$this->_view->loadLayout();
$this->_view->renderLayout();
}
}

Fifth Step:

Create frontend router. Here you will declare your frontName make sure it is unique name.

app/code/QaisarSatti/HelloWorld/etc/frontend/routes.xml

<?xml version="1.0"?>
<!--/**
* Simple Hello World Module
*
* @category QaisarSatti
* @package QaisarSatti_HelloWorld
* @author Muhammad Qaisar Satti
* @Email [email protected]
*
*/ -->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:App/etc/routes.xsd">
<router id="standard">
<route id="helloworld" frontName="helloworld">
<module name="QaisarSatti_HelloWorld" />
</route>
</router>
</config>

Sixth Step:

Create frontend template file.

app/code/QaisarSatti/HelloWorld/view/frontend/templates/HelloWorld.phtml

<?php
/**
* Catalog Product Rewrite Helper
*
* @category QaisarSatti
* @package QaisarSatti_HelloWorld
* @author Muhammad Qaisar Satti
* @Email [email protected]
*
*/

echo 'Hello World';
?>

Seventh Step:

Add frontend layout handle for your router. First letter will be your frontName as you mention in your router.xml file (helloworld) then your folder name (index) then in the last your controller name (Index).

app/code/QaisarSatti/HelloWorld/view/frontend/layout/helloworld_index_index.xml

<?xml version="1.0"?>
<!--/**
* Simple Hello World Module
*
* @category QaisarSatti
* @package QaisarSatti_HelloWorld
* @author Muhammad Qaisar Satti
* @Email [email protected]
*
*/ -->
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="1column" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
<body>
<referenceContainer name="content">
<block class="QaisarSatti\HelloWorld\Block\HelloWorld" name="HelloWorld" template="QaisarSatti_HelloWorld::HelloWorld.phtml"></block>
</referenceContainer>
</body>
</page>

Now your simple hello world module is complete. You can do following step to activate this module.

php bin/magento module:enable QaisarSatti_HelloWorld

You can see the output of module front page by http::yoururl/helloworld

Github Links

Author: Qaisar Satti
Category: Magento 2
Last Modified: July 12, 2018


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