Joomla：从标签模块访问文章属性

So i've got a template, and to design my blog I used the blog.php and blog_items.php in html/ folder in my template's folder. So now I am working on tag-search, that's now not in the com_content, it's in com_tags. So I created a folder com_tags, a tag folder inside it and, since I want the posts to look the same in the tag search and common blog view, I just copied the blog_item.php to my new folder, renaming it to default_item. I have no problem with including that file from default_items.php, but the $this->item seems to be different from the one that was in the com_content component. So, my code, especially when using lines like <?php echo JLayoutHelper::render('joomla.content.blog_style_default_item_title', $this->item); ?>

generates a lot of errors, that, for example, $this->item->title is unset. So I've created a simple workaround after an investigation using print_r:

$params = JComponentHelper::getParams('com_content');
$this->params=$params;
$this->item->params=$params;
$this->item->title=$this->escape($this->item->core_title);
$this->item->state=$this->escape($this->item->core_state);
$this->item->publish_up=$this->escape($this->item->core_publish_up);
$this->item->publish_down=$this->escape($this->item->core_publish_down);
$this->item->images=$this->escape($this->item->core_images);
$this->item->introtext = $this->item->text;

But such a workaround won't let me get, for example, hits of the article, since there is no core_hits variable and this code just looks stupid. How should I do that correctly?