Empty a page field via frontend

[verdeandrea]

Hi guys,

i need to create or edit some pages via front-end.

The problem is I don't get how to empty a field for an existing page and dave a new value.

I'll try to be clear with this example:

the page has a field named "countries" - page fieldtype.

It has this value: [pageA, pageB]

When save this field like this via frontend

$page->countries = [pageC, pageD];

the new value of the field is [pageA, pageB, pageC, pageD] and not just [pageC, pageD].

So i need to empty the field before save the new value, or just the new value to overwrite the old one but i can't get how to do it.

Thanks!

[teppo]

Values for page type fields that store multiple values are PageArrays. Since PageArray extends WireArray, you can use it's methods here -- such as removeAll().

Running $page->countries->removeAll() before adding new items should do the trick. It'll clear the PageArray and you can start from clean slate, so to speak. You should also take a look at other WireArray and PageArray methods, as those provide some nice ways to manage stored items etc.

[verdeandrea]

Great! Thanks.