Update db_queries.php - Make sure data->rows is array/countable

[turtlepod]

I encountered a fatal error in one environment, but I am still investigating the root cause. It may be due to incorrect hooks like pre_get_posts or queries bleeding.

This solution should prevent any future fatal errors related to this issue.

[szepeviktor]

Isn't is better to have a fatal error? It points out that there is an incorrect hook.

[turtlepod]

In local or staging, maybe.
In production, I’d prefer to avoid any fatal errors.

[szepeviktor]

How about not being blinded?

$this->data->errors[] = 'Rows are not an array!';
return;

[johnbillion]

Thanks for the PR @turtlepod. Were you able to investigate this any further? I am reluctant to add type coercion without understanding where the underlying problem is coming from.

[turtlepod]

@johnbillion Sorry for the late reply. I haven’t been able to investigate this further yet.

The fix I submitted is more of a safeguard—a good practice to prevent errors (especially since the rows data isn’t set as an array by default ?).

That said, the issue might actually be related to Gravity Forms (possibly an add-on or some configuration). The error disappears when I deactivate GF, so it seems connected.