将Magento 1.8升级到1.9 - 致命错误：调用成员函数getReadConnection（）

Question

I am trying to upgrade our Magento 1.8.0.0 to 1.9.2.1.

I copied the db to another table so I could do a test run first. I uploaded 1.9 files to ourdomain.com/upgrade, then copied every extra installed module.

In our database I changed the base secure and unsecure url to ourdomain.com/upgrade.

Now when I go to ourdomain.com/upgrade I get this error:

Fatal error: Call to a member function getReadConnection() on a non-object in /home/domains/ourdomain.com/public_html/upgrade/app/code/core/Mage/Core/Model/Resource/Db/Collection/Abstract.php on line 134

I have pasted this above line 134: echo get_class($this);exit; and now have this:

Mage_Core_Model_Resource_Website_Collection

Does anybody have an idea what I am doing wrong?

Answer 1

I suggest that before the line $this->setConnection($this->getResource()->getReadConnection()); put
if(!is_object($this->getResource())){ var_dump($this -> _resourceModel);die(); } to find out which resouce model generates your problem.

gl & hf

p.s. I think it's going to be the sales/order ;), I have the same problem with it.