silverstripe-subsites/code/RelatedPageLink.php

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2010-03-01 04:01:50 +01:00
<?php
/**
* This DataObject only exists to provide a link between related pages.
* Unfortunately, there is no way to provide a decent GUI otherwise.
*/
class RelatedPageLink extends DataObject {
static $db = array(
);
static $has_one = array(
'RelatedPage' => 'SiteTree',
// Note: The *last* matching has_one relation to SiteTree is used as the link field for the
// has_many (RelatedPages) on SiteTree. This isn't obvious and the framework could be
// extended in a future version to allow for explicit selection of a has_one relation to
// bind a has_many to.
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'MasterPage' => 'SiteTree',
);
function getCMSFields() {
$subsites = Subsite::accessible_sites("CMS_ACCESS_CMSMain");
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if(!$subsites) $subsites = new DataObjectSet();
if(Subsite::hasMainSitePermission(null, array("CMS_ACCESS_CMSMain"))) {
$subsites->push(new ArrayData(array('Title' => 'Main site', "\"ID\"" => 0)));
}
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if($subsites->Count()) {
$subsiteSelectionField = new DropdownField(
"CopyContentFromID_SubsiteID",
"Subsite",
$subsites->toDropdownMap('ID', 'Title'),
($this->CopyContentFromID) ? $this->CopyContentFrom()->SubsiteID : Session::get('SubsiteID')
);
}
// Setup the linking to the original page.
$pageSelectionField = new SubsitesTreeDropdownField(
"RelatedPageID",
_t('VirtualPage.CHOOSE', "Choose a page to link to"),
"SiteTree",
"ID",
"MenuTitle"
);
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if (isset($_GET['RelatedPageID_SubsiteID'])) $pageSelectionField->setSubsiteID($_GET['RelatedPageID_SubsiteID']);
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$pageSelectionField->setFilterFunction(create_function('$item', 'return $item->ClassName != "VirtualPage";'));
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if($subsites->Count()) $fields = new FieldSet($subsiteSelectionField, $pageSelectionField);
else $fields = new FieldSet($pageSelectionField);
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return $fields;
}
function RelatedPageAdminLink($master = false) {
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$page = $master ? Dataobject::get_by_id("SiteTree", $this->MasterPageID) : Dataobject::get_by_id("SiteTree", $this->RelatedPageID);
$otherPage = $master ? Dataobject::get_by_id("SiteTree", $this->RelatedPageID) : Dataobject::get_by_id("SiteTree", $this->MasterPageID);
if(!$page) return;
// Use cmsEditlink only when moving between different pages in the same subsite.
$classClause = ($page->SubsiteID == $otherPage->SubsiteID) ? ' class="cmsEditlink"' : '';
return '<a href="admin/show/' . $page->ID . "\"$classClause>" . Convert::raw2xml($page->Title) . '</a>';
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}
function AbsoluteLink($master = false) {
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$page = $master ? Dataobject::get_by_id("SiteTree", $this->MasterPageID) : Dataobject::get_by_id("SiteTree", $this->RelatedPageID);
if(!$page) return;
$url = $page->AbsoluteLink();
}
function canView($member = null) {
return $this->MasterPage()->canView($member);
}
function canEdit($member = null) {
return $this->MasterPage()->canView($member);
}
function canDelete($member = null) {
return $this->MasterPage()->canDelete($member);
}
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}
?>