408 lines
11 KiB
PHP
408 lines
11 KiB
PHP
<?php
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/**
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* Utility class representing links to different views of a record
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* for CMS authors, usually for {@link SiteTree} objects with "stage" and "live" links.
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* Useful both in the CMS and alongside the page template (for logged in authors).
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* The class can be used for any {@link DataObject} subclass implementing the {@link CMSPreviewable} interface.
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*
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* New item types can be defined by extending the {@link SilverStripeNavigatorItem} class,
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* for example the "cmsworkflow" module defines a new "future state" item with a date selector
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* to view embargoed data at a future point in time. So the item doesn't always have to be a simple link.
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*
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* @package cms
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* @subpackage content
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*/
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class SilverStripeNavigator extends ViewableData {
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/**
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* @var DataObject
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*/
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protected $record;
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/**
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* @param DataObject $record
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* @throws InvalidArgumentException if record doesn't implement CMSPreviewable
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*/
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public function __construct($record) {
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if(!in_array('CMSPreviewable', class_implements($record))) {
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throw new InvalidArgumentException(sprintf(
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'SilverStripeNavigator: Record of type %s doesn\'t implement CMSPreviewable',
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get_class($record)
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));
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}
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$this->record = $record;
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}
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/**
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* @return SS_List of SilverStripeNavigatorItem
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*/
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public function getItems() {
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$items = array();
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$classes = ClassInfo::subclassesFor('SilverStripeNavigatorItem');
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array_shift($classes);
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// Sort menu items according to priority
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$i = 0;
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foreach($classes as $class) {
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// Skip base class
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if($class == 'SilverStripeNavigatorItem') continue;
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$i++;
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$item = new $class($this->record);
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if(!$item->canView()) continue;
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// This funny litle formula ensures that the first item added with the same priority will be left-most.
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$priority = $item->getPriority() * 100 - 1;
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// Ensure that we can have duplicates with the same (default) priority
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while(isset($items[$priority])) $priority++;
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$items[$priority] = $item;
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}
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ksort($items);
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// Drop the keys and let the ArrayList handle the numbering, so $First, $Last and others work properly.
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return new ArrayList(array_values($items));
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}
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/**
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* @return DataObject
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*/
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public function getRecord() {
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return $this->record;
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}
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/**
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* @param DataObject $record
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* @return Array template data
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*/
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static public function get_for_record($record) {
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$html = '';
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$message = '';
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$navigator = new SilverStripeNavigator($record);
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$items = $navigator->getItems();
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foreach($items as $item) {
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$text = $item->getHTML();
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if($text) $html .= $text;
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$newMessage = $item->getMessage();
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if($newMessage && $item->isActive()) $message = $newMessage;
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}
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return array(
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'items' => $html,
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'message' => $message
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);
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}
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}
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/**
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* Navigator items are links that appear in the $SilverStripeNavigator bar.
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* To add an item, extend this class - it will be automatically picked up.
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* When instanciating items manually, please ensure to call {@link canView()}.
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*
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* @package cms
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* @subpackage content
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*/
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class SilverStripeNavigatorItem extends ViewableData {
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/**
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* @param DataObject
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*/
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protected $record;
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/**
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* @param DataObject
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*/
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public function __construct($record) {
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$this->record = $record;
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}
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/**
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* @return string HTML, mostly a link - but can be more complex as well.
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* For example, a "future state" item might show a date selector.
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*/
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public function getHTML() {}
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/**
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* @return string
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* Get the Title of an item
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*/
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public function getTitle() {}
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/**
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* Machine-friendly name.
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*/
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public function getName() {
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return substr(get_class($this), strpos(get_class($this), '_')+1);
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}
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/**
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* Optional link to a specific view of this record.
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* Not all items are simple links, please use {@link getHTML()}
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* to represent an item in markup unless you know what you're doing.
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*
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* @return string
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*/
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public function getLink() {}
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/**
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* @return string
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*/
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public function getMessage() {}
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/**
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* @return DataObject
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*/
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public function getRecord() {
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return $this->record;
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}
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/**
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* @return int
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*/
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public function getPriority() {
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return $this->stat('priority');
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}
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/**
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* As items might convey different record states like a "stage" or "live" table,
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* an item can be active (showing the record in this state).
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*
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* @return boolean
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*/
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public function isActive() {
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return false;
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}
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/**
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* Filters items based on member permissions or other criteria,
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* such as if a state is generally available for the current record.
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*
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* @param Member
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* @return Boolean
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*/
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public function canView($member = null) {
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return true;
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}
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/**
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* Counts as "archived" if the current record is a different version from both live and draft.
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*
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* @return boolean
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*/
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public function isArchived() {
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if(!$this->record->hasExtension('Versioned')) return false;
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if(!isset($this->record->_cached_isArchived)) {
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$baseTable = ClassInfo::baseDataClass($this->record->class);
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$currentDraft = Versioned::get_one_by_stage($baseTable, 'Stage', array(
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"\"$baseTable\".\"ID\"" => $this->record->ID
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));
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$currentLive = Versioned::get_one_by_stage($baseTable, 'Live', array(
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"\"$baseTable\".\"ID\"" => $this->record->ID
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));
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$this->record->_cached_isArchived = (
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(!$currentDraft || ($currentDraft && $this->record->Version != $currentDraft->Version))
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&& (!$currentLive || ($currentLive && $this->record->Version != $currentLive->Version))
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);
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}
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return $this->record->_cached_isArchived;
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}
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}
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/**
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* @package cms
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* @subpackage content
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*/
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class SilverStripeNavigatorItem_CMSLink extends SilverStripeNavigatorItem {
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/** @config */
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private static $priority = 10;
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public function getHTML() {
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return sprintf(
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'<a href="%s">%s</a>',
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$this->record->CMSEditLink(),
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_t('ContentController.CMS', 'CMS')
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);
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}
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public function getTitle() {
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return _t('ContentController.CMS', 'CMS', 'Used in navigation. Should be a short label');
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}
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public function getLink() {
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return $this->record->CMSEditLink();
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}
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public function isActive() {
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return (Controller::curr() instanceof LeftAndMain);
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}
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public function canView($member = null) {
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return (
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// Don't show in CMS
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!(Controller::curr() instanceof LeftAndMain)
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// Don't follow redirects in preview, they break the CMS editing form
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&& !($this->record instanceof RedirectorPage)
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);
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}
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}
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/**
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* @package cms
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* @subpackage content
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*/
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class SilverStripeNavigatorItem_StageLink extends SilverStripeNavigatorItem {
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/** @config */
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private static $priority = 20;
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public function getHTML() {
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$draftPage = $this->getDraftPage();
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if($draftPage) {
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$this->recordLink = Controller::join_links($draftPage->AbsoluteLink(), "?stage=Stage");
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return "<a ". ($this->isActive() ? 'class="current" ' : '') ."href=\"$this->recordLink\">". _t('ContentController.DRAFTSITE', 'Draft Site') ."</a>";
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}
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}
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public function getTitle() {
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return _t('ContentController.DRAFT', 'Draft', 'Used for the Switch between draft and published view mode. Needs to be a short label');
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}
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public function getMessage() {
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return "<div id=\"SilverStripeNavigatorMessage\" title=\"". _t('ContentControl.NOTEWONTBESHOWN', 'Note: this message will not be shown to your visitors') ."\">". _t('ContentController.DRAFTSITE', 'Draft Site') ."</div>";
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}
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public function getLink() {
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$date = Versioned::current_archived_date();
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return Controller::join_links(
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$this->record->PreviewLink(),
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'?stage=Stage',
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$date ? '?archiveDate=' . $date : null
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);
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}
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public function canView($member = null) {
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return (
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$this->record->hasExtension('Versioned')
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&& $this->getDraftPage()
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// Don't follow redirects in preview, they break the CMS editing form
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&& !($this->record instanceof RedirectorPage)
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);
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}
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public function isActive() {
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return (
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Versioned::current_stage() == 'Stage'
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&& !(ClassInfo::exists('SiteTreeFutureState') && SiteTreeFutureState::get_future_datetime())
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&& !$this->isArchived()
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);
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}
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protected function getDraftPage() {
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$baseTable = ClassInfo::baseDataClass($this->record->class);
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return Versioned::get_one_by_stage($baseTable, 'Stage', array(
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"\"$baseTable\".\"ID\"" => $this->record->ID
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));
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}
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}
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/**
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* @package cms
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* @subpackage content
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*/
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class SilverStripeNavigatorItem_LiveLink extends SilverStripeNavigatorItem {
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/** @config */
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private static $priority = 30;
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public function getHTML() {
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$livePage = $this->getLivePage();
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if($livePage) {
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$this->recordLink = Controller::join_links($livePage->AbsoluteLink(), "?stage=Live");
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return "<a ". ($this->isActive() ? 'class="current" ' : '') ."href=\"$this->recordLink\">". _t('ContentController.PUBLISHEDSITE', 'Published Site') ."</a>";
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}
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}
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public function getTitle() {
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return _t('ContentController.PUBLISHED', 'Published', 'Used for the Switch between draft and published view mode. Needs to be a short label');
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}
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public function getMessage() {
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return "<div id=\"SilverStripeNavigatorMessage\" title=\"". _t('ContentControl.NOTEWONTBESHOWN', 'Note: this message will not be shown to your visitors') ."\">". _t('ContentController.PUBLISHEDSITE', 'Published Site') ."</div>";
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}
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public function getLink() {
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return Controller::join_links($this->record->PreviewLink(), '?stage=Live');
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}
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public function canView($member = null) {
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return (
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$this->record->hasExtension('Versioned')
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&& $this->getLivePage()
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// Don't follow redirects in preview, they break the CMS editing form
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&& !($this->record instanceof RedirectorPage)
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);
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}
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public function isActive() {
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return (
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(!Versioned::current_stage() || Versioned::current_stage() == 'Live')
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&& !$this->isArchived()
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);
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}
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protected function getLivePage() {
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$baseTable = ClassInfo::baseDataClass($this->record->class);
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return Versioned::get_one_by_stage($baseTable, 'Live', array(
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"\"$baseTable\".\"ID\"" => $this->record->ID
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));
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}
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}
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/**
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* @package cms
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* @subpackage content
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*/
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class SilverStripeNavigatorItem_ArchiveLink extends SilverStripeNavigatorItem {
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/** @config */
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private static $priority = 40;
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public function getHTML() {
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$this->recordLink = $this->record->AbsoluteLink();
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return "<a class=\"ss-ui-button". ($this->isActive() ? ' current' : '') ."\" href=\"$this->recordLink?archiveDate={$this->record->LastEdited}\" target=\"_blank\">". _t('ContentController.ARCHIVEDSITE', 'Preview version') ."</a>";
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}
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public function getTitle() {
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return _t('SilverStripeNavigator.ARCHIVED', 'Archived');
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}
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public function getMessage() {
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if($date = Versioned::current_archived_date()) {
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$dateObj = DBField::create_field('Datetime', $date);
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return "<div id=\"SilverStripeNavigatorMessage\" title=\"". _t('ContentControl.NOTEWONTBESHOWN', 'Note: this message will not be shown to your visitors') ."\">". _t('ContentController.ARCHIVEDSITEFROM', 'Archived site from') ."<br>" . $dateObj->Nice() . "</div>";
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}
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}
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public function getLink() {
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return $this->record->PreviewLink() . '?archiveDate=' . urlencode($this->record->LastEdited);
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}
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public function canView($member = null) {
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return (
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$this->record->hasExtension('Versioned')
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&& $this->isArchived()
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// Don't follow redirects in preview, they break the CMS editing form
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&& !($this->record instanceof RedirectorPage)
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);
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}
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public function isActive() {
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return $this->isArchived();
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}
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}
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