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FEATURE: Single instance only page (in the site tree). OS ticket #1554

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git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@79868 467b73ca-7a2a-4603-9d3b-597d59a354a9
This commit is contained in:
Saophalkun Ponlu 2009-06-23 17:45:55 +00:00
parent 96fac4432a
commit 121a92a86a
1 changed files with 15 additions and 2 deletions
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17
core/model/SiteTree.php
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@ -150,7 +150,16 @@ class SiteTree extends DataObject implements PermissionProvider,i18nEntityProvid
*/
static $can_create = true;
/**
* If this is true, users can create only one instance of this class in the CMS.
*/
static $single_instance_only = false;
/**
* This is used as a CSS class to indicate a sitetree node is a single_instance_only page type
*/
static $single_instance_only_css_class = 'singleinstanceonly';
/**
* Icon to use in the CMS
*
@ -724,6 +733,8 @@ class SiteTree extends DataObject implements PermissionProvider,i18nEntityProvid
* @return boolean True if the current user can create pages on this class.
*/
public function canCreate($member = null) {
if($this->stat('single_instance_only') && DataObject::get_one($this->class)) return false;
if(!$member || !(is_a($member, 'Member')) || is_numeric($member)) $member = Member::currentUser();
if($member && Permission::checkMember($member, "ADMIN")) return true;
@ -739,7 +750,6 @@ class SiteTree extends DataObject implements PermissionProvider,i18nEntityProvid
return $this->stat('can_create') != false || Director::isDev();
}
/**
* This function should return true if the current user can edit this
* page. It can be overloaded to customise the security model for an
@ -1814,6 +1824,9 @@ class SiteTree extends DataObject implements PermissionProvider,i18nEntityProvid
if(!$this->ShowInMenus)
$classes .= " notinmenu";
if($this->stat('single_instance_only'))
$classes .= " " . $this->stat('single_instance_only_css_class');
//TODO: Add integration
/*
if($this->hasExtension('Translatable') && $controller->Locale != Translatable::default_locale() && !$this->isTranslation())