/**
  * Prepare fields to render
  */
 protected function _prepareToRender()
 {
     $this->addColumn('pattern', array('label' => Mage::helper('firegento_logger')->__('Pattern'), 'style' => 'width:150px'));
     $severityRenderer = new FireGento_Logger_Block_Adminhtml_System_Config_Renderer_Select();
     $severityRenderer->setValues(Mage::getSingleton('firegento_logger/system_config_source_prioritydefault')->toOptionArray());
     $this->addColumn('severity', array('label' => Mage::helper('firegento_logger')->__('Severity'), 'style' => 'width:100px', 'renderer' => $severityRenderer));
     $this->addColumn('email_list_csv', array('label' => Mage::helper('firegento_logger')->__('Email(s)'), 'style' => 'width:150px'));
     $this->_addButtonLabel = Mage::helper('firegento_logger')->__('Add Notification Rule');
 }
 /**
  * Prepare fields to render
  */
 protected function _prepareToRender()
 {
     $this->addColumn('pattern', array('label' => Mage::helper('firegento_logger')->__('Pattern'), 'style' => 'width:200px'));
     $targetRenderer = new FireGento_Logger_Block_Adminhtml_System_Config_Renderer_Select();
     $targetRenderer->setValues(Mage::getSingleton('firegento_logger/system_config_source_targets')->toOptionArray());
     $this->addColumn('target', array('label' => Mage::helper('firegento_logger')->__('Target'), 'style' => 'width:180px', 'renderer' => $targetRenderer));
     $btRenderer = new FireGento_Logger_Block_Adminhtml_System_Config_Renderer_Select();
     $btRenderer->setValues(Mage::getSingleton('adminhtml/system_config_source_yesno')->toOptionArray());
     $this->addColumn('backtrace', array('label' => Mage::helper('firegento_logger')->__('Backtrace'), 'style' => 'width:60px', 'renderer' => $btRenderer));
     $somRenderer = new FireGento_Logger_Block_Adminhtml_System_Config_Renderer_Select();
     $somRenderer->setValues(Mage::getSingleton('adminhtml/system_config_source_yesno')->toOptionArray());
     $this->addColumn('stop_on_match', array('label' => Mage::helper('firegento_logger')->__('Stop On Match'), 'style' => 'width:60px', 'renderer' => $somRenderer));
     $this->_addButtonLabel = Mage::helper('firegento_logger')->__('Add Target Rule');
 }