Will db queries for the same field taken only once or every time the field appear on the page?

[Juergen]

Hello @ all,

I have a general question about how PW deals with db queries.

If I query the same db field multiple times on a page, fe the title field, will  this field be queried only once or for every appearence on the page.

$page->title
......
$page->title
......
......
$page->title

Thanks for you answeres

[LostKobrakai]

Even pages are most of the time queried once and after that cached. And their fields are as well only loaded once on first demand of it, as long as it's not autojoin field, which are automatically loaded with the pages native data (id, template, …).

[Juergen]

Thanks LostKobrakai! This answered my questions.

[LostKobrakai]

Essentially the places to look at are Pages::getById and Page::getFieldValue.

[netcarver]

Bookmarking: https://processwire.com/blog/posts/making-efficient-use-of-fields-in-processwire/