Getting the error while viewing the order in admin Call to a member function getMethodInstance() on boolean

Question

I am getting the below error while opening/viewing admin -> sales -> order -> view.

Call to a member function getMethodInstance() on boolean in /var/www/magento/app/code/core/Mage/Payment/Model/Observer.php on line 46

This error is causing for orders, those are having the order total is Zero means No Payment Information Required.

We are using Magento ver. 1.13.1.0.

Any help would be appreciated.

• Abdul: have you done any customization for payments or add any custom extension for the payment or shipping methods?
• Krishna ijjada: @ Abdul thanks for reply, We have not done any customization or modifications related to payment gateway.
• Abdul: have you added any custom extention?
• Krishna ijjada: Yes we have added one extra column to sales order grid.
• Abdul: Pls comment your code and check again. I think working :)

Answer 1

Replace your code

From

protected function _prepareCollection() 
{ 
$collection = Mage::getResourceModel($this->_getCollectionClass()); 
$collection->getSelect()->join(array('billing'=>'sales_flat_order_address'),'main_table.entity_id=billing.parent_id and billing.address_type="billing"',array('*')); 
$this->setCollection($collection); 
return Mage_Adminhtml_Block_Widget_Grid::_prepareCollection(); 
}

To

protected function _prepareCollection()
 {
 $collection = Mage::getResourceModel($this->_getCollectionClass());
 $collection->getSelect()->join('sales_flat_order_address', 'main_table.entity_id = sales_flat_order_address.parent_id' ,array('company'=> 'company'));
 $collection->addFieldToFilter('sales_flat_order_address.address_type', array('eq' => 'billing'));
 $this->setCollection($collection);
 return parent::_prepareCollection();
 }

• ImranSheik: @Abdul It will be greate if you can explain about the fix