CBlogPost::Delete: Bitrix method

      
<?php 
//  CBlogPost :: Delete()
//  /dist/bitrix/modules/blog/general/blog_post.php:433

    public static function Delete($ID)
    {
        global $DB, $CACHE_MANAGER, $USER_FIELD_MANAGER;

        $ID = IntVal($ID);

        $arPost = CBlogPost::GetByID($ID);
        if ($arPost)
        {
            foreach(GetModuleEvents("blog", "OnBeforePostDelete", true) as $arEvent)
            {
                if (ExecuteModuleEventEx($arEvent, Array($ID))===false)
                    return false;
            }

            $dbResult = CBlogComment::GetList(
                array(),
                array("POST_ID" => $ID),
                false,
                false,
                array("ID")
            );
            while ($arResult = $dbResult->Fetch())
            {
                if (!CBlogComment::Delete($arResult["ID"]))
                    return False;
            }

            $dbResult = CBlogUserGroupPerms::GetList(
                array(),
                array("POST_ID" => $ID, "BLOG_ID" => $arPost["BLOG_ID"]),
                false,
                false,
                array("ID")
            );
            while ($arResult = $dbResult->Fetch())
            {
                if (!CBlogUserGroupPerms::Delete($arResult["ID"]))
                    return False;
            }

            $dbResult = CBlogTrackback::GetList(
                array(),
                array("POST_ID" => $ID, "BLOG_ID" => $arPost["BLOG_ID"]),
                false,
                false,
                array("ID")
            );
            while ($arResult = $dbResult->Fetch())
            {
                if (!CBlogTrackback::Delete($arResult["ID"]))
                    return False;
            }

            $dbResult = CBlogPostCategory::GetList(
                array(),
                array("POST_ID" => $ID, "BLOG_ID" => $arPost["BLOG_ID"]),
                false,
                false,
                array("ID")
            );
            while ($arResult = $dbResult->Fetch())
            {
                if (!CBlogPostCategory::Delete($arResult["ID"]))
                    return False;
            }

            $strSql =
                "SELECT F.ID ".
                "FROM b_blog_post P, b_file F ".
                "WHERE P.ID = ".$ID." ".
                "    AND P.ATTACH_IMG = F.ID ";
            $z = $DB->Query($strSql, false, "FILE: ".__FILE__." LINE:".__LINE__);
            while ($zr = $z->Fetch())
                CFile::Delete($zr["ID"]);

            CBlogPost::DeleteSocNetPostPerms($ID);

            unset(static::$arBlogPostCache[$ID]);

            $arBlog = CBlog::GetByID($arPost["BLOG_ID"]);

            $result = $DB->Query("DELETE FROM b_blog_post WHERE ID = ".$ID, true);

            if (IntVal($arBlog["LAST_POST_ID"]) == $ID)
                CBlog::SetStat($arPost["BLOG_ID"]);

            if ($result)
            {
                $res = CBlogImage::GetList(array(), array("POST_ID"=>$ID, "IS_COMMENT" => "N"));
                while($aImg = $res->Fetch())
                    CBlogImage::Delete($aImg['ID']);
            }
            if ($result)
                $USER_FIELD_MANAGER->Delete("BLOG_POST", $ID);

            foreach(GetModuleEvents("blog", "OnPostDelete", true) as $arEvent)
                ExecuteModuleEventEx($arEvent, Array($ID, &$result));

            if (CModule::IncludeModule("search"))
            {
                CSearch::Index("blog", "P".$ID,
                    array(
                        "TITLE" => "",
                        "BODY" => ""
                    )
                );
                //CSearch::DeleteIndex("blog", false, "COMMENT", $arPost["BLOG_ID"]."|".$ID);
            }
            if(defined("BX_COMP_MANAGED_CACHE"))
            {
                $CACHE_MANAGER->ClearByTag("blog_post_".$ID);
            }
            
            return $result;
        }
        else
            return false;
    }