How does \Magento\Eav\Model\Entity\AbstractEntity::getAttribute() work?

dmitry_fedyuk · April 23, 2016, 7:45pm

Context: How does \Magento\Eav\Model\Entity\AttributeLoader::loadAllAttributes() work?

magento/magento2/blob/958164/app/code/Magento/Eav/Model/Entity/AbstractEntity.php#L383-L394


/**
 * Retrieve attribute instance by name, id or config node
 *
 * This will add the attribute configuration to entity's attributes cache
 *
 * If attribute is not found false is returned
 *
 * @param string|int|Element $attribute
 * @return AbstractAttribute|false
 * @SuppressWarnings(PHPMD.CyclomaticComplexity)
 */
public function getAttribute($attribute)

github.com

magento/magento2/blob/958164/app/code/Magento/Eav/Model/Entity/AbstractEntity.php#L397-L398


/** @var $config \Magento\Eav\Model\Config */
$config = $this->_getConfig();

github.com

magento/magento2/blob/958164/app/code/Magento/Eav/Model/Entity/AbstractEntity.php#L373-L381


/**
 * Get EAV config model
 *
 * @return \Magento\Eav\Model\Config
 */
protected function _getConfig()
{
    return $this->_eavConfig;
}

github.com

magento/magento2/blob/958164/app/code/Magento/Eav/Model/Entity/AbstractEntity.php#L399-L407


if (is_numeric($attribute)) {
    $attributeId = $attribute;
    $attributeInstance = $config->getAttribute($this->getEntityType(), $attributeId);
    if ($attributeInstance) {
        $attributeCode = $attributeInstance->getAttributeCode();
    }
} elseif (is_string($attribute)) {
    $attributeCode = $attribute;
    $attributeInstance = $config->getAttribute($this->getEntityType(), $attributeCode);

Details: How does \Magento\Eav\Model\Config::getAttribute() work?

github.com

magento/magento2/blob/958164/app/code/Magento/Eav/Model/Entity/AbstractEntity.php#L408-L426


    if (!$attributeInstance->getAttributeCode() && in_array($attribute, $this->getDefaultAttributes())) {
        $attributeInstance->setAttributeCode(
            $attribute
        )->setBackendType(
            AbstractAttribute::TYPE_STATIC
        )->setIsGlobal(
            1
        )->setEntity(
            $this
        )->setEntityType(
            $this->getEntityType()
        )->setEntityTypeId(
            $this->getEntityType()->getId()
        );
    }
} elseif ($attribute instanceof AbstractAttribute) {
    $attributeInstance = $attribute;
    $attributeCode = $attributeInstance->getAttributeCode();
}

github.com

magento/magento2/blob/958164/app/code/Magento/Eav/Model/Entity/AbstractEntity.php#L428-L434


if (empty($attributeInstance)
    || !$attributeInstance instanceof AbstractAttribute
    || !$attributeInstance->getId()
    && !in_array($attributeInstance->getAttributeCode(), $this->getDefaultAttributes())
) {
    return false;
}

github.com

magento/magento2/blob/958164/app/code/Magento/Eav/Model/Entity/AbstractEntity.php#L436-L442


$attribute = $attributeInstance;


if (!$attribute->getAttributeCode()) {
    $attribute->setAttributeCode($attributeCode);
}
if (!$attribute->getAttributeModel()) {
    $attribute->setAttributeModel($this->_getDefaultAttributeModel());

github.com

magento/magento2/blob/958164/app/code/Magento/Catalog/Model/ResourceModel/AbstractResource.php#L50-L58


/**
 * Re-declare attribute model
 *
 * @return string
 */
protected function _getDefaultAttributeModel()
{
    return 'Magento\Catalog\Model\ResourceModel\Eav\Attribute';
}

github.com

magento/magento2/blob/958164/app/code/Magento/Eav/Model/Entity/Attribute/AbstractAttribute.php#L260-L268


/**
 * @param array $data
 * @return $this
 * @codeCoverageIgnore
 */
public function setAttributeModel($data)
{
    return $this->setData('attribute_model', $data);
}

github.com

magento/magento2/blob/958164/app/code/Magento/Eav/Model/Entity/AbstractEntity.php#L450-L470


/**
 * Adding attribute to entity
 *
 * @param AbstractAttribute $attribute
 * @return $this
 */
public function addAttribute(AbstractAttribute $attribute)
{
    $attribute->setEntity($this);
    $attributeCode = $attribute->getAttributeCode();


    $this->_attributesByCode[$attributeCode] = $attribute;


    if ($attribute->isStatic()) {
        $this->_staticAttributes[$attributeCode] = $attribute;
    } else {
        $this->_attributesByTable[$attribute->getBackendTable()][$attributeCode] = $attribute;
    }


    return $this;
}

dmitry_fedyuk · April 23, 2016, 7:45pm