protected function _prepareColumns()
 {
     $this->addColumn('code', array('header' => $this->_getTranslationHelper()->__('Code'), 'width' => '25', 'align' => 'left', 'index' => 'code', 'type' => 'text'));
     $this->addColumn('name', array('header' => $this->_getTranslationHelper()->__('Name'), 'width' => '200', 'align' => 'left', 'index' => 'name', 'type' => 'text'));
     $this->addColumn('feed_url', array('header' => $this->_getTranslationHelper()->__('Feed URL'), 'align' => 'left', 'index' => 'feed_url', 'type' => 'text'));
     $this->addColumn('type', array('header' => $this->_getTranslationHelper()->__('Feed Type'), 'width' => '30', 'align' => 'left', 'index' => 'type', 'type' => 'text'));
     $this->addColumn('active', array('header' => $this->_getTranslationHelper()->__('Active'), 'width' => '30', 'align' => 'left', 'index' => 'active', 'type' => 'text', 'renderer' => 'adminhtml/widget_grid_column_renderer_options', 'options' => Mage::getModel('eav/entity_attribute_source_boolean')->getOptionArray(), 'filter' => 'adminhtml/widget_grid_column_filter_select'));
     return parent::_prepareColumns();
 }
 protected function _prepareColumns()
 {
     $this->addColumn('source', array('header' => $this->_getTranslationHelper()->__('Source'), 'width' => '100', 'align' => 'left', 'index' => 'source.name', 'type' => 'text'));
     $this->addColumn('title', array('header' => $this->_getTranslationHelper()->__('Title'), 'align' => 'left', 'index' => 'title', 'type' => 'text'));
     $this->addColumn('link', array('header' => $this->_getTranslationHelper()->__('Article Url'), 'align' => 'left', 'index' => 'link', 'type' => 'text'));
     $this->addColumn('article_text', array('header' => $this->_getTranslationHelper()->__('Article Text'), 'align' => 'left', 'index' => 'article_text', 'type' => 'text'));
     $this->addColumn('publication_date', array('header' => $this->_getTranslationHelper()->__('Publication Date'), 'width' => '30', 'align' => 'left', 'index' => 'publication_date', 'type' => 'datetime'));
     $this->addColumn('is_biased', array('header' => $this->_getTranslationHelper()->__('Is Biased'), 'width' => '30', 'align' => 'left', 'index' => 'is_biased', 'type' => 'text', 'renderer' => 'adminhtml/widget_grid_column_renderer_options', 'options' => Mage::getModel('eav/entity_attribute_source_boolean')->getOptionArray(), 'filter' => 'adminhtml/widget_grid_column_filter_select'));
     return parent::_prepareColumns();
 }
 protected function _prepareColumns()
 {
     $this->addColumn('action', array('header' => $this->_getTranslationHelper()->__('Action'), 'width' => '50px', 'type' => 'action', 'getter' => 'getId', 'renderer' => 'dunagan_process_queue/adminhtml_widget_grid_column_renderer_action', 'filter' => false, 'sortable' => false));
     $this->addColumn('code', array('header' => $this->_getTranslationHelper()->__('Code'), 'align' => 'left', 'index' => 'code', 'type' => 'text'));
     $this->addColumn('status', array('header' => $this->_getTranslationHelper()->__('Status'), 'align' => 'left', 'index' => 'status', 'type' => 'options', 'options' => Mage::getModel('dunagan_process_queue/source_task_status')->getOptionArray()));
     $this->addColumn('object', array('header' => $this->_getTranslationHelper()->__('Object'), 'align' => 'left', 'index' => 'object', 'type' => 'text'));
     $this->addColumn('method', array('header' => $this->_getTranslationHelper()->__('Method'), 'align' => 'left', 'index' => 'method', 'type' => 'text'));
     $this->addColumn('serialized_arguments_object', array('header' => $this->_getTranslationHelper()->__('Serialized Arguments Object'), 'width' => '250', 'align' => 'left', 'index' => 'serialized_arguments_object', 'type' => 'text'));
     $this->addColumn('status_message', array('header' => $this->_getTranslationHelper()->__('Status Message'), 'width' => '250', 'align' => 'left', 'index' => 'status_message', 'type' => 'text'));
     $this->addColumn('created_at', array('header' => $this->_getTranslationHelper()->__('Created At'), 'align' => 'left', 'index' => 'created_at', 'type' => 'datetime'));
     $this->addColumn('last_executed_at', array('header' => $this->_getTranslationHelper()->__('Last Executed At'), 'align' => 'left', 'index' => 'last_executed_at', 'type' => 'datetime', 'renderer' => 'dunagan_base/adminhtml_widget_grid_column_renderer_datetime'));
     return parent::_prepareColumns();
 }