Check Position in Page Tree

[Fuzzy]

Hi,

is there a possibility to check if  a page is before/after another page in the admin page tree?

Example:

> Categories
>> In Progress
>> Completed
>> Waiting for Approval

What I'm looking for is an if statement that checks whether "Completed" is before/after "In Progress" in the page tree. Checking the ID is not an option as "In Progress" might have been created after "Completed".

Thanks in advance for your help!

[MoritzLost]

You can check $page->prev() and $page->next() to find siblings matching a selector. You need of course some criteria to identify the "Completed" page – if using an ID is not an option, you could use the name or title of the page.

Here are some code examples (those assume $page is the "In Progress" page):

// will be true if the "Completed" page is somewhere before the current $page
$CompletedIsBefore = $page->prev('title="Completed"')->id !== 0;

// will be true if the "Completed" page is somewhere after the current $page
$CompletedIsAfter = $page->next('title="Completed"')->id !== 0;

// will be true if the "Completed" page comes directly before the current $page
$CompletedIsPreviousPage = $page->prev()->matches('title="Completed"');

See $page->prev() and $page->next() in the API reference.

[Robin S]

So long as you don't have a custom sort setting on the parent template or parent page (i.e. the pages are just sorted according to the default which is "Manual drag-n-drop") then you can compare the "sort" value of the pages.

if($sibling_1->sort > $sibling_2->sort) {
	// $sibling_1 is after $sibling_2 in the page tree 
}

 

[Fuzzy]

Thanks to both of you, @MoritzLost and @Robin S.

In my case Robin's idea did the trick ?