Create an EAV Model in Magento2.

April 12, 2019 by [email protected]

Create an EAV Model in Magento2 in simple way.

Employee entity,as per requirements,is modeled as an EAV model.

First create an EAV model class,have to define under the app/code/Skynet/Office/Model/Employee.php file as follows:

namespace Skynet\Office\Model;


use Magento\Framework\Model\AbstractModel;

class Employee extends AbstractModel
{
const ENTITY = 'skynet_office_employee';
public function __construct()
{
    $this->_init('Skynet\Office\Model\ResourceModel\Employee');
}
}

Extending from the Magento\Framework\Model\AbstractModel class,which is the same as with the simple model previously described.

Next,we create an EAV model resource class,defined under under the app/code/Skynet/Office/Model/ResourceModel/Employee.php file as follows:

namespace Skynet\Office\Model\ResourceModel;


class Employee extends \Magento\Eav\Model\Entity\AbstractEntity
{
 public function __construct()
 {
     $this->_read = 'skynet_office_employee_read';
     $this->_read = 'skynet_office_employee_write';
 }
 public function getEntityType()
 {
     if(empty($this->_type)){
         $this->setType(\Skynet\Office\Model\Employee::ENTITY);
     }
     return parent :: getEntityType();
 }
}

Our resource class extends from \Magento\Eav\Model\Entity\AbstractEntity,

and sets the $this->_read,$this->_read class properties through _construct.The read and write connections need to be named or else Magento produces an error when using our entities.The getEntityType method internally sets the _type value to \Skynet\Office\Model\Employee::ENTITY,which is the string skynet_office_employee.

Finally,we create our collection class,defined under the app/code/Skynet/Office/Model/ResourceModel/Employee/Collection.php file as follows:

namespace Skynet\Office\Model\ResourceModel\Employee;


class Collection extends \Magento\Eav\Model\Entity\Collection\AbstractCollection
{
 public function __construct(){
     $this->_init('Skynet\Office\Model\Employee',
         Skynet\Office\Model\ResourceModel\Employee);
 }
}addAttributeToFilter

The collection class extends from \Magento\Eav\Model\Entity\Collection\AbstractCollection and,similar to the model class,does a $this->_init method call within __construct._init accepts two parameters:full model class name

Skynet\Office\Model\Employee,and the full resource class name Skynet\Office\Model\ResourceModel\Employee.

AbstractCollection has the same parents tree as the simple model collection class,but on its own  it implements a lots of EAV collection specific method like addAttributeToFilter,addAttributeToSelect,
addAttributeToSort,and so on.