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Bug #87557

closed

Invalid database result with sql_free_result

Added by Franz Holzinger about 5 years ago. Updated about 5 years ago.

Status:
Closed
Priority:
Should have
Assignee:
-
Category:
-
Target version:
-
Start date:
2019-01-28
Due date:
% Done:

90%

Estimated time:
TYPO3 Version:
8
PHP Version:
Tags:
Complexity:
Is Regression:
Sprint Focus:

Description

After executing a wrong SQL message I get a PHP error:

bugfix error message: Invalid database result detected: function TYPO3\CMS\Core\Database\DatabaseConnection->sql_free_result

        public function exec_SELECTgetRows($select_fields, $from_table, $where_clause, $groupBy = '', $orderBy = '', $limit = '', $uidIndexField = '')
        {
            $this->logDeprecation();
            $res = $this->exec_SELECTquery($select_fields, $from_table, $where_clause, $groupBy, $orderBy, $limit);
            if ($this->sql_error()) {
                $this->sql_free_result($res);
                return null;
            }

Fix:

/typo3_src-8.7.15/typo3/sysext/core/Classes/Database/DatabaseConnection.php:

        if ($this->sql_error()) {
            if ($res !== false) {
                $this->sql_free_result($res);
            }
            return null;
        }
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 #1

Updated by Franz Holzinger about 5 years ago

Most probably the if can be omitted. There won't be any records to free their space if an SQL error did occur.

This solution should work also:

https://github.com/franzholz/debug_mysql_db/commit/944c39afc9cb125f7ed60e8029e8dbe9f7c87b8e

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 #2

Updated by Georg Ringer about 5 years ago

  • Status changed from New to Closed

Thanks for creating the issue! v8 is in important bugfixing phase only. As Doctrine is used in core now I would propose that you create an issue/PR at https://github.com/FriendsOfTYPO3/typo3db_legacy

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