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Posts tagged with: frontend

Magento 2 event observer

Today we talk about how in Magento 2 observer event. This tutorial included observing event sales_order_save_commit_after. Following this example you can observe any event in magento 2. So let start with our example.

Create event.xml

First create the events.xml in QaisarSatti/HelloWorld/etc/events.xml. If you want to observe the event that trigger only the frontend you create events.xml file QaisarSatti/HelloWorld/etc/frontend/events.xml. Same as you want to observe the events that trigger in admin side create file QaisarSatti/HelloWorld/etc/adminhtml/events.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
    <event name="sales_order_save_commit_after">
        <observer name="helloworld_sales_order_save_after" instance="QaisarSatti\HelloWorld\Observer\Observer" />
    </event>
</config>

Create Observer.php

Now we create Observer.php in following directory QaisarSatti\HelloWorld\Observer. Inject \Magento\Framework\Event\Observer in your method to get event data.

<?php
namespace QaisarSatti\HelloWorld\Observer;
use Magento\Framework\Event\ObserverInterface;
 
class Observer implements ObserverInterface {
  public function execute(\Magento\Framework\Event\Observer $observer) {
                 $order = $observer->getEvent()->getOrder(); //get order information      
    }
}
Author: Qaisar Satti
Category: Magento 2
Last Modified: April 24, 2018


Magento 2 enable template path hints

Today we discuss how in Magento 2 enable template path hints. This topic will cover how to enable template path hints on frontend and also backend too. There are two ways to enable the template path hints. One way is to enable hints from admin configurations and the other way is by using MySql query.

Using Admin Panel

Login to admin panel.

Front end

Store > Configuration > Advanced > Developer > Debug > Enabled

Template Path Hints for Storefront > Yes

Admin Panel

Store > Configuration > Advanced > Developer > Debug > Enabled  

Template Path Hints for Admin > Yes

Using Mysql Query

Enable Temaote Path Hints

UPDATE core_config_data SET value = '1' WHERE path LIKE '%template_hints%';

Disable Temaote Path Hints

UPDATE core_config_data SET value = '0' WHERE path LIKE '%template_hints%';

Note: this command only work if it have already entry in core_config_data table.

Author: Qaisar Satti
Category: Magento 2
Last Modified: April 23, 2018


Magento 2 display discount percent product page

Today we discuss how in Magento 2 display discount percent product page. This topic will cover how to show % percentage saving on current product. You can use this code on any product product listing or product widget page. You can also use this code product detail page. So let’s start with our example. You need to get $_product->getFinalPrice() and $_product->getPrice() to calculate the percentage of current product.

$_finalPrice = $_product->getFinalPrice();
$_price = $_product->getPrice();
if($_finalPrice < $_price):
   $_savingPercent = 100 - round(($_finalPrice / $_price)*100);
      echo $_savingPercent; ?> % Off
<?php endif; ?>
Author: Qaisar Satti
Category: Magento 2
Last Modified: April 23, 2018


Magento 2 create basic module frontend part 4

As we finished with the basic module structure and admin part we move to Magento 2 create basic module frontend .Now this tutorial will be cover the create frontend router, create layout file, create frontend controller, create frontend block, add custom pagination. Now we start with frontend.

Create frontend router

Create routes.xml in following directory

QaisarSatti\HelloWorld\etc\frontend\

<?xml version="1.0"?>
<!--
/**
* Hello World
   *
   * @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>

Create frontend controller

Create Index.php in following directory

QaisarSatti\HelloWorld\Controller\Index\

<?php
/**
 * Hello World
    *
    * @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();
    }

}

Create layout file

Create helloworld_index_index.xml in following directory

QaisarSatti\HelloWorld\etc\frontend\

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

Create frontend block

Create HelloWorld.php in following directory

QaisarSatti\HelloWorld\Block\

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


namespace QaisarSatti\HelloWorld\Block;

class HelloWorld extends \Magento\Framework\View\Element\Template
{
      protected $_coreRegistry = null;
    protected $_collectionFactory;
    protected $_productsFactory;
    protected $_helloworldFactory;
   public function __construct(
        \Magento\Backend\Block\Template\Context $context,
        \Magento\Framework\Registry $registry,
        \QaisarSatti\HelloWorld\Model\ResourceModel\HelloWorld\CollectionFactory $helloworldFactory,
       array $data = []
   ) {
 
       $this->_coreRegistry = $registry;
       $this->_helloworldFactory = $helloworldFactory;
       parent::__construct($context, $data);
   }
   public function getHelloCollection()
        {
          $page=($this->getRequest()->getParam('p'))? $this->getRequest()->getParam('p') : 1;
           //get values of current limit
          $pageSize=($this->getRequest()->getParam('limit'))? $this->getRequest()->getParam('limit') : 5;

          $helloCollection = $this->_helloworldFactory->create();
          $helloCollection->setPageSize($pageSize);
          $helloCollection->setCurPage($page);
          return $helloCollection;
        }
   public function _prepareLayout()
   {
   
       parent::_prepareLayout();
       $this->pageConfig->getTitle()->set(__('Sample Post'));

       if ($this->getHelloCollection()) {
            $pager = $this->getLayout()->createBlock('Magento\Theme\Block\Html\Pager','qaisarsatti.blog.pager')->setAvailableLimit(array(5=>5,10=>10,15=>15,20=>20));
            $pager->setShowPerPage(true);
            $pager->setCollection($this->getHelloCollection());
            $this->setChild('pager', $pager);
            $this->getHelloCollection()->load();
        }
        return $this;
   }
   public function getPagerHtml(){
        return $this->getChildHtml('pager');
    }


}

Create frontend phtml

Create HelloWorld.phtml in following directory

QaisarSatti\HelloWorld\view\frontend\templates\

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

$blogCollection = $block->getHelloCollection();
foreach ($blogCollection as $blog) {

    echo $blog->getTitle().'<br />';
    echo '&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.$blog->getContent().'<br />';
}

 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: February 9, 2018


Magento 2 create basic module part 1

Today we discuss how in magento 2 create basic module. This tutorial include the complete module sections frontend, admin end, custom model, custom admin grid, custom admin form, frontend controller, admin controller and admin menu. I already posted a tutorial about create a hello world module. Now we will go one step further and create a complete basic module. So let start with our example. My module name is hello world.

Module registration

First you register your module or extension. Create registration.php in following directory

QaisarSatti/HelloWorld/

<?php
/**
 * Hello World
    *
    * @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__
);

Module declaration

First you declare your module or extension. In module.xml you declare your schema_version and setup_version of module that are stored in setup_module table . Now Create module.xml in following directory

QaisarSatti/HelloWorld/etc/

<?xml version="1.0"?>
<!--
/**
* Hello World
   *
   * @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>

Module Setup

Now we create custom table sample_posts for module. You can read further on tutorial Magento 2 Create a install Schema. Now we Create InstallSchema.php in following directory

QaisarSatti/HelloWorld/Setup/

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

namespace QaisarSatti\HelloWorld\Setup;

use Magento\Framework\Setup\InstallSchemaInterface;
use Magento\Framework\Setup\ModuleContextInterface;
use Magento\Framework\Setup\SchemaSetupInterface;
use Magento\Framework\DB\Ddl\Table;

class InstallSchema implements InstallSchemaInterface {

    public function install( SchemaSetupInterface $setup, ModuleContextInterface $context ) {
        $installer = $setup;

        $installer->startSetup();

        $table = $installer->getConnection()->newTable(
            $installer->getTable( 'sample_posts' )
        )->addColumn(
            'post_id',
            Table::TYPE_SMALLINT,
            null,
            [ 'identity' => true, 'nullable' => false, 'primary' => true ],
            'Post ID'
        )->addColumn(
            'title',
            Table::TYPE_TEXT,
            255,
            [ 'nullable' => false ],
            'Post Title'
        )->addColumn(
            'content',
            Table::TYPE_TEXT,
            '2M',
            [ ],
            'Post Content'
        )->setComment(
            'Sample Post Table'
        );

        $installer->getConnection()->createTable( $table );

        $installer->endSetup();
    }
}

Module Model

I already discuss model in Magento 2 create custom model tutorial. So we go to directly creating models file.

Model File

Create HelloWorld.php in following directory

QaisarSatti/HelloWorld/Model/

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


namespace QaisarSatti\HelloWorld\Model;



    class HelloWorld extends \Magento\Framework\Model\AbstractModel  
    {  
        protected function _construct()
        {
            $this->_init('QaisarSatti\HelloWorld\Model\ResourceModel\HelloWorld');
        }
}

ResouceModel File

Create HelloWorld.php in following directory

QaisarSatti/HelloWorld/Model/ResouceModel/

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



namespace QaisarSatti\HelloWorld\Model\ResourceModel;


use \Magento\Framework\Model\ResourceModel\Db\AbstractDb;

class HelloWorld extends AbstractDb

{
    protected function _construct()

    {
        $this->_init('sample_posts', 'post_id');

    }
   

}

AbstractCollection Model File

Create AbstractCollection.php in following directory

QaisarSatti/HelloWorld/Model/ResouceModel/

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

namespace QaisarSatti\HelloWorld\Model\ResourceModel;

use Magento\Store\Model\Store;

/**
 * Abstract collection of CMS pages and blocks
 */

abstract class AbstractCollection extends \Magento\Framework\Model\ResourceModel\Db\Collection\AbstractCollection
{
    /**
     * Store manager
     *
     * @var \Magento\Store\Model\StoreManagerInterface
     */

    protected $storeManager;

    /**
     * @var \Magento\Framework\EntityManager\MetadataPool
     */

    protected $metadataPool;

   
    public function __construct(
        \Magento\Framework\Data\Collection\EntityFactoryInterface $entityFactory,
        \Psr\Log\LoggerInterface $logger,
        \Magento\Framework\Data\Collection\Db\FetchStrategyInterface $fetchStrategy,
        \Magento\Framework\Event\ManagerInterface $eventManager,
        \Magento\Store\Model\StoreManagerInterface $storeManager,
        \Magento\Framework\EntityManager\MetadataPool $metadataPool,
        \Magento\Framework\DB\Adapter\AdapterInterface $connection = null,
        \Magento\Framework\Model\ResourceModel\Db\AbstractDb $resource = null
    ) {
        $this->storeManager = $storeManager;
        $this->metadataPool = $metadataPool;
        parent::__construct($entityFactory, $logger, $fetchStrategy, $eventManager, $connection, $resource);
    }

    /**
     * Perform operations after collection load
     *
     * @param string $tableName
     * @param string|null $linkField
     * @return void
     */

    protected function performAfterLoad($tableName, $linkField)
    {
        $linkedIds = $this->getColumnValues($linkField);
       
       
    }

    /**
     * Add field filter to collection
     *
     * @param array|string $field
     * @param string|int|array|null $condition
     * @return $this
     */

    public function addFieldToFilter($field, $condition = null)
    {
       

        return parent::addFieldToFilter($field, $condition);
    }

    /**
     * Add filter by store
     *
     * @param int|array|Store $store
     * @param bool $withAdmin
     * @return $this
     */

    abstract public function addStoreFilter($store, $withAdmin = true);

    /**
     * Perform adding filter by store
     *
     * @param int|array|Store $store
     * @param bool $withAdmin
     * @return void
     */

    protected function performAddStoreFilter($store, $withAdmin = true)
    {
        if ($store instanceof Store) {
            $store = [$store->getId()];
        }

        if (!is_array($store)) {
            $store = [$store];
        }

        if ($withAdmin) {
            $store[] = Store::DEFAULT_STORE_ID;
        }

        $this->addFilter('store', ['in' => $store], 'public');
    }

    /**
     * Join store relation table if there is store filter
     *
     * @param string $tableName
     * @param string|null $linkField
     * @return void
     */

    protected function joinStoreRelationTable($tableName, $linkField)
    {
        if ($this->getFilter('store')) {
            $this->getSelect()->join(
                ['store_table' => $this->getTable($tableName)],
                'main_table.' . $linkField . ' = store_table.' . $linkField,
                []
            )->group(
                'main_table.' . $linkField
            );
        }
        parent::_renderFiltersBefore();
    }

    /**
     * Get SQL for get record count
     *
     * Extra GROUP BY strip added.
     *
     * @return \Magento\Framework\DB\Select
     */

    public function getSelectCountSql()
    {
        $countSelect = parent::getSelectCountSql();
        $countSelect->reset(\Magento\Framework\DB\Select::GROUP);

        return $countSelect;
    }
}

Collection Model File

Create Collection.php in following directory

QaisarSatti/HelloWorld/Model/ResouceModel/HelloWorld/

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



namespace QaisarSatti\HelloWorld\Model\ResourceModel\HelloWorld;


use QaisarSatti\HelloWorld\Model\ResourceModel\AbstractCollection;

class Collection extends AbstractCollection
{
    /**
     * @var string
     */

    protected $_idFieldName = 'post_id';

    /**
     * Load data for preview flag
     *
     * @var bool
     */

    protected $_previewFlag;

    /**
     * Define resource model
     *
     * @return void
     */

    protected function _construct()
    {
        $this->_init('QaisarSatti\HelloWorld\Model\HelloWorld', 'QaisarSatti\HelloWorld\Model\ResourceModel\HelloWorld');
    }

   
    public function setFirstStoreFlag($flag = false)
    {
        $this->_previewFlag = $flag;
        return $this;
    }

    /**
     * Add filter by store
     *
     * @param int|array|\Magento\Store\Model\Store $store
     * @param bool $withAdmin
     * @return $this
     */

    public function addStoreFilter($store, $withAdmin = true)
    {
       
        return $this;
    }

    /**
     * Perform operations after collection load
     *
     * @return $this
     */

    protected function _afterLoad()
    {
       
        return parent::_afterLoad();
    }

    /**
     * Perform operations before rendering filters
     *
     * @return void
     */

    protected function _renderFiltersBefore()
    {
        return parent::_renderFiltersBefore();
    }
}

Now the part 1 is complete now we got part 2 Magento 2 create basic module admin.

Author: Qaisar Satti
Category: Magento 2
Last Modified: April 6, 2018


Magento 2 get current product information

Today we talk about how to get Magento 2 current product information like product id, product name and other information on product page. Magneto 2 have feature of registry to store data. That is use to store data between execution of data. Like you want to set data in controller and use it in block or model the registry is best option for that. So let start with getting the product data from registry. Now i use HelloWorld module block example for getting current product.
Create a Block

<?php
namespace QaisarSatti\HelloWorld\Block;
class HelloWorld extends \Magento\Framework\View\Element\Template
{
    protected $registry;

    public function __construct(  
        \Magento\Framework\Registry $registry,

    )
    {      
        $this->registry = $registry;

    }


    public function getCurrentProduct()
    {      
        return $this->registry->registry('current_product');
    }  

}
?>

Get product information In your phtml file

<?php
  $currentProduct = $block->getCurrentProduct();
            echo $currentProduct->geId();
            echo $currentProduct->geName();
 ?>

If you want to get in current product information in phtml you can use following code.

<?php
    $objectManager = \Magento\Framework\App\ObjectManager::getInstance();
    $currentProduct = $objectManager->get('Magento\Framework\Registry')->registry('current_product');//get current product information
    echo $currentProduct>getId();
    echo $currentProduct>getName();
?>
Author: Qaisar Satti
Category: Magento 2
Last Modified: January 17, 2018


Magento 2 get product categories

In our daily coding routine you have to work with product and category. So today we learn how to get Magento 2 product categories from product object.You can always get the assigned categories of a product using following code.
In Constructor:

protected $_productFactory;
public function __construct(
        \Magento\Catalog\Model\ProductFactory $productFactory
    ) {
        $this->_productFactory = $productFactory;
    }
    public function getProductCategories()
    {
      $product = $this->_productFactory->create()->load($pid); // $pid = Product_ID

      return  $product->getCategoryIds();
     }

Now we get all categories from product collection.

protected $_productCollectionFactory;
protected $_productloader;
public function __construct(
        \Magento\Catalog\Model\ResourceModel\Product\CollectionFactory $productFactory,
         \Magento\Catalog\Model\ProductFactory $productloader
    ) {
        $this->_productCollectionFactory = $productFactory;
        $this->_productloader = $productloader;
    }
    public function getProductCollectionCategories()
    {
      $prodIds= $this->_productCollectionFactory->create(); // $pid = Product_ID
      foreach($prodIds as $pid){          
         $product = $this->_productloader->create()->load($pid);  
         $proCats = $product->getCategoryIds();    
         $catIds= array_merge($catIds, $pproCats);  
       }
      $finalCat = array_unique($catIds);
      return  $finalCat;
     }
Author: Qaisar Satti
Category: Magento 2
Last Modified: December 15, 2017


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