has_parent issue

[Frank Vèssia]

I have this selector

$photos = $pages->find("template=picture,has_parent=2293|1038,limit=20,sort=-created");

I got this warning even i can show correctly my photos...

Warning: preg_match() expects parameter 2 to be string, array given in /public_html/wire/core/Sanitizer.php on line 266/

[diogo]

I think has_parent is not a selector. try parent=2293|1038

Sorry, it is a selector...

[Frank Vèssia]

Yes, it'a a selector and the strange thing is the result is showed correctly...

[apeisa]

Are you sure it is that exact place that is causing the warning?

[Frank Vèssia]

Absolutely, I removed all other stuff i have...using just one ID it works without warnings...

[Soma]

has_parent works only for 1 page.

[Frank Vèssia]

oh, that's pitty...any workaround to obtain the same?

[apeisa]

Actually it says otherwise:

You can specify a Page object, Page ID, or path, like shown above. Note however that at present, you can only specify one page at a time here (meaning no has_parent=1|2|3).

[Frank Vèssia]

Yes, infact i need to specify more than one page...

[Soma]

like this?

$parents = array(2293,1038);
$photos = new PageArray();
foreach($parents as $parent) $photos->add($pages->find("template=picture,has_parent=$parent,limit=20,sort=-created"));
$photos = $photos->sort("-created")->slice(0,20);

[Frank Vèssia]

Soma, that works, a good solution, but in my case i need to paginate the result, for this reason i used the limit, but it looks like the built in pagination to this final PageArray doesn't work...

[Soma]

In that case you need to construct your own pagination. Pagination only works with 1 page query.

[ryan]

has_parent only works with 1 page because the only reason it exists is to provide the Page::find() capability -- or at least, that was the original intention.

I'm not sure what the structure you have is exactly, but you can use "|" with parent. So if you could narrow it down to the parents, then you could do it. Something like this might provide an equivalent functionality, though not ideal if the potential number of parents is huge.

$parents = new PageArray();
$hasParents = $pages->find("id=2293|1038"); 
foreach($hasParents as $hasParent) {
 $parents->add($hasParent->find("num_children>0, template!=picture")); 
}

$selector = "template=picture, sort=-created, limit=20, parent=";
foreach($parents as $parent) $selector .= $parent->id . "|";
$photos = $pages->find(rtrim($selector, '|')); 

[Frank Vèssia]

Thanks Ryan but i solved the problem in another way, I changed my structure and removing one intermediate page between the parent I'm looking for and the piciture page, so now i can use the direct "parent="