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Magento migration error - dbModel read resource does not implement Zend_Db_Adapter_Abstract

Magento migration error - dbModel read resource does not implement Zend_Db_Adapter_Abstract

 

After migrated a Magento(CE 1.9.1) website from Apache server to Nginx server, i am getting error in frontend: dbModel read resource does not implement Zend_Db_Adapter_Abstract

But admin panel is working fine.

 

#0 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Core/Model/Resource/Db/Collection/Abstract.php(134): Varien_Data_Collection_Db->setConnection(false)
#1 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Core/Model/Config.php(1348): Mage_Core_Model_Resource_Db_Collection_Abstract->__construct(Array)
#2 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Core/Model/Config.php(1380): Mage_Core_Model_Config->getModelInstance('wordpress_resou...', Array)
#3 /var/www/vhosts/example.com/htdocs/app/Mage.php(491): Mage_Core_Model_Config->getResourceModelInstance('wordpress/post_...', Array)
#4 /var/www/vhosts/example.com/htdocs/app/design/frontend/bloonaway/default/template/page/home.phtml(197): Mage::getResourceModel('wordpress/post_...')
#5 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Core/Block/Template.php(241): include('/var/www/vhosts...')
#6 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Core/Block/Template.php(272): Mage_Core_Block_Template->fetchView('frontend/bloona...')
#7 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Core/Block/Template.php(286): Mage_Core_Block_Template->renderView()
#8 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Core/Block/Abstract.php(919): Mage_Core_Block_Template->_toHtml()
#9 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Core/Block/Text/List.php(43): Mage_Core_Block_Abstract->toHtml()
#10 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Core/Block/Abstract.php(919): Mage_Core_Block_Text_List->_toHtml()
#11 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Core/Block/Abstract.php(637): Mage_Core_Block_Abstract->toHtml()
#12 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Core/Block/Abstract.php(581): Mage_Core_Block_Abstract->_getChildHtml('content', true)
#13 /var/www/vhosts/example.com/htdocs/app/design/frontend/bloonaway/default/template/page/1column.phtml(116): Mage_Core_Block_Abstract->getChildHtml('content')
#14 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Core/Block/Template.php(241): include('/var/www/vhosts...')
#15 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Core/Block/Template.php(272): Mage_Core_Block_Template->fetchView('frontend/bloona...')
#16 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Core/Block/Template.php(286): Mage_Core_Block_Template->renderView()
#17 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Core/Block/Abstract.php(919): Mage_Core_Block_Template->_toHtml()
#18 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Core/Model/Layout.php(555): Mage_Core_Block_Abstract->toHtml()
#19 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Core/Controller/Varien/Action.php(390): Mage_Core_Model_Layout->getOutput()
#20 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Cms/Helper/Page.php(137): Mage_Core_Controller_Varien_Action->renderLayout()
#21 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Cms/Helper/Page.php(52): Mage_Cms_Helper_Page->_renderPage(Object(Mage_Cms_IndexController), 'home')
#22 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Cms/controllers/IndexController.php(45): Mage_Cms_Helper_Page->renderPage(Object(Mage_Cms_IndexController), 'home')
#23 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Core/Controller/Varien/Action.php(418): Mage_Cms_IndexController->indexAction()
#24 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(250): Mage_Core_Controller_Varien_Action->dispatch('index')
#25 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#26 /var/www/vhosts/example.com/htdocs/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Controller_Varien_Front->dispatch()
#27 /var/www/vhosts/example.com/htdocs/app/Mage.php(684): Mage_Core_Model_App->run(Array)
#28 /var/www/vhosts/example.com/htdocs/index.php(91): Mage::run('', 'store')
#29 {main}

I have tried all solutions provided in other similar threads but no luck.

I tried below following to fix this.

  1. Cleared all caches from the var/cache folder.
  2. Deleted all session from var/session folder.
  3. Given 777 file permission recursively to the entire application.
  4. Changed the DB setting in local.xml
  5. I have disabled all local modules also using local.xml

<disable_local_modules>true</disable_local_modules>

How to fix this. Thanks.

Tags (3)
2 REPLIES

Re: Magento migration error - dbModel read resource does not implement Zend_Db_Adapter_Abstract

Hello Amitbindalcipl,

 

Can you please try :

 

After you put the right database connection you also need to changed this line:

<disable_local_modules>false</disable_local_modules>

into this

<disable_local_modules>true</disable_local_modules>

And gif recursively the 777 permission to the var folder using this command:

chmod -R 777 var

 

best regards,

Michel

Re: Magento migration error - dbModel read resource does not implement Zend_Db_Adapter_Abstract

Hi Michel,

 

Thanks for your response but it is not working for me.

 

Regards,

Amit Bindal