Make canEdit fall back to session if the object's SubsiteID not there.

This problem manifests when a GridField-managed relationship tries to
create an object that references the container from canEdit - the
container in this case has empty fields.

An example of that is a HomePage with CarouselItem - if the
CarouselItem::canEdit tries to call $this->Page()->canEdit(), the "Page"
will be a dummy object, not the actual instance of the HomePage that's
doing the manipulation.

This is similar to the behaviour of SiteTree::canEdit, which solves
this situation by falling back to "return
$this->getSiteConfig()->canEdit($member);"
This commit is contained in:
Mateusz Uzdowski 2014-01-10 09:28:35 +13:00
parent d21c92a9e3
commit 82159e38d3

View File

@ -127,13 +127,25 @@ class SiteTreeSubsites extends DataExtension {
* @return boolean
*/
function canEdit($member = null) {
if(!$member) $member = Member::currentUser();
// Find the sites that this user has access to
$goodSites = Subsite::accessible_sites('CMS_ACCESS_CMSMain',true,'all',$member)->column('ID');
if (!is_null($this->owner->SubsiteID)) {
$subsiteID = $this->owner->SubsiteID;
} else {
// The relationships might not be available during the record creation when using a GridField.
// In this case the related objects will have empty fields, and SubsiteID will not be available.
//
// We do the second best: fetch the likely SubsiteID from the session. The drawback is this might
// make it possible to force relations to point to other (forbidden) subsites.
$subsiteID = Subsite::currentSubsiteID();
}
// Return true if they have access to this object's site
if(!(in_array(0, $goodSites) || in_array($this->owner->SubsiteID, $goodSites))) return false;
if(!(in_array(0, $goodSites) || in_array($subsiteID, $goodSites))) return false;
}
/**