1 <?php
 2 
 3 /**
 4  * This DataObject only exists to provide a link between related pages.
 5  * Unfortunately, there is no way to provide a decent GUI otherwise.
 6  */
 7 class RelatedPageLink extends DataObject {
 8     static $db = array(
 9     );
10     
11     static $has_one = array(
12         'RelatedPage' => 'SiteTree',
13         // Note: The *last* matching has_one relation to SiteTree is used as the link field for the
14         // has_many (RelatedPages) on SiteTree.  This isn't obvious and the framework could be
15         // extended in a future version to allow for explicit selection of a has_one relation to
16         // bind a has_many to.
17         'MasterPage' => 'SiteTree',
18     );
19     
20     function getCMSFields() {
21         $subsites = Subsite::accessible_sites("CMS_ACCESS_CMSMain");
22         if(!$subsites) $subsites = new DataObjectSet();
23 
24         if(Subsite::hasMainSitePermission(null, array("CMS_ACCESS_CMSMain"))) {
25             $subsites->push(new ArrayData(array('Title' => 'Main site', "\"ID\"" => 0)));
26         }
27     
28         if($subsites->Count()) {
29             $subsiteSelectionField = new DropdownField(
30                 "CopyContentFromID_SubsiteID", 
31                 "Subsite", 
32                 $subsites->toDropdownMap('ID', 'Title'),
33                 ($this->CopyContentFromID) ? $this->CopyContentFrom()->SubsiteID : Session::get('SubsiteID')
34             );
35         }
36         
37         // Setup the linking to the original page.
38         $pageSelectionField = new SubsitesTreeDropdownField(
39             "RelatedPageID", 
40             _t('VirtualPage.CHOOSE', "Choose a page to link to"), 
41             "SiteTree",
42             "ID",
43             "MenuTitle"
44         );
45         
46         if (isset($_GET['RelatedPageID_SubsiteID'])) $pageSelectionField->setSubsiteID($_GET['RelatedPageID_SubsiteID']);
47                 
48         $pageSelectionField->setFilterFunction(create_function('$item', 'return $item->ClassName != "VirtualPage";'));
49         
50         if($subsites->Count()) $fields = new FieldSet($subsiteSelectionField, $pageSelectionField);
51         else $fields = new FieldSet($pageSelectionField);
52         
53         return $fields;
54     }
55     
56     function RelatedPageAdminLink($master = false) {
57         $page = $master ? Dataobject::get_by_id("SiteTree", $this->MasterPageID) : Dataobject::get_by_id("SiteTree", $this->RelatedPageID);
58         $otherPage = $master ? Dataobject::get_by_id("SiteTree", $this->RelatedPageID) : Dataobject::get_by_id("SiteTree", $this->MasterPageID);
59         if(!$page) return;
60         
61         // Use cmsEditlink only when moving between different pages in the same subsite.
62         $classClause = ($page->SubsiteID == $otherPage->SubsiteID) ? ' class="cmsEditlink"' : '';
63         return '<a href="admin/show/' . $page->ID . "\"$classClause>" . Convert::raw2xml($page->Title) . '</a>';
64     }
65 
66     function AbsoluteLink($master = false) {
67         $page = $master ? Dataobject::get_by_id("SiteTree", $this->MasterPageID) : Dataobject::get_by_id("SiteTree", $this->RelatedPageID);
68         if(!$page) return;
69         
70 
71         $url = $page->AbsoluteLink();
72     }
73 
74     function canView($member = null) {
75         return $this->MasterPage()->canView($member);
76     }
77     function canEdit($member = null) {
78         return $this->MasterPage()->canView($member);
79     }
80     function canDelete($member = null) {
81         return $this->MasterPage()->canDelete($member);
82     }
83 }
84 
85 ?>
86