mirror of
https://github.com/silverstripe/silverstripe-cms
synced 2024-10-22 08:05:56 +02:00
cf4d9edafb
Conflicts: code/model/SiteConfig.php javascript/CMSMain.AddForm.js tests/model/SiteConfigTest.php tests/model/SiteTreeTest.php
577 lines
17 KiB
PHP
577 lines
17 KiB
PHP
<?php
|
|
/**
|
|
* Virtual Page creates an instance of a page, with the same fields that the original page had, but readonly.
|
|
* This allows you can have a page in mulitple places in the site structure, with different children without duplicating the content
|
|
* Note: This Only duplicates $db fields and not the $has_one etc..
|
|
* @package cms
|
|
*/
|
|
class VirtualPage extends Page {
|
|
|
|
private static $description = 'Displays the content of another page';
|
|
|
|
public static $virtualFields;
|
|
|
|
/**
|
|
* @var Array Define fields that are not virtual - the virtual page must define these fields themselves.
|
|
* Note that anything in {@link self::config()->initially_copied_fields} is implicitly included in this list.
|
|
*/
|
|
private static $non_virtual_fields = array(
|
|
"SecurityTypeID",
|
|
"OwnerID",
|
|
"URLSegment",
|
|
"Sort",
|
|
"Status",
|
|
'ShowInMenus',
|
|
// 'Locale'
|
|
'ShowInSearch',
|
|
'Version',
|
|
"Embargo",
|
|
"Expiry",
|
|
);
|
|
|
|
/**
|
|
* @var Array Define fields that are initially copied to virtual pages but left modifiable after that.
|
|
*/
|
|
private static $initially_copied_fields = array(
|
|
'ShowInMenus',
|
|
'ShowInSearch',
|
|
'URLSegment',
|
|
);
|
|
|
|
private static $has_one = array(
|
|
"CopyContentFrom" => "SiteTree",
|
|
);
|
|
|
|
private static $db = array(
|
|
"VersionID" => "Int",
|
|
);
|
|
|
|
/**
|
|
* Generates the array of fields required for the page type.
|
|
*/
|
|
public function getVirtualFields() {
|
|
$nonVirtualFields = array_merge(self::config()->non_virtual_fields, self::config()->initially_copied_fields);
|
|
$record = $this->CopyContentFrom();
|
|
|
|
$allFields = $record->db();
|
|
if($hasOne = $record->hasOne()) foreach($hasOne as $link) $allFields[$link . 'ID'] = "Int";
|
|
$virtualFields = array();
|
|
foreach($allFields as $field => $type) {
|
|
if(!in_array($field, $nonVirtualFields)) $virtualFields[] = $field;
|
|
}
|
|
|
|
return $virtualFields;
|
|
}
|
|
|
|
/**
|
|
* @return SiteTree Returns the linked page, or failing that, a new object.
|
|
*/
|
|
public function CopyContentFrom() {
|
|
$copyContentFromID = $this->CopyContentFromID;
|
|
if(!$copyContentFromID) return new SiteTree();
|
|
|
|
if(!isset($this->components['CopyContentFrom'])) {
|
|
$this->components['CopyContentFrom'] = DataObject::get_by_id("SiteTree",
|
|
$copyContentFromID);
|
|
|
|
// Don't let VirtualPages point to other VirtualPages
|
|
if($this->components['CopyContentFrom'] instanceof VirtualPage) {
|
|
$this->components['CopyContentFrom'] = null;
|
|
}
|
|
|
|
// has_one component semantics incidate than an empty object should be returned
|
|
if(!$this->components['CopyContentFrom']) {
|
|
$this->components['CopyContentFrom'] = new SiteTree();
|
|
}
|
|
}
|
|
|
|
return $this->components['CopyContentFrom'] ? $this->components['CopyContentFrom'] : new SiteTree();
|
|
}
|
|
public function setCopyContentFromID($val) {
|
|
if($val && DataObject::get_by_id('SiteTree', $val) instanceof VirtualPage) $val = 0;
|
|
return $this->setField("CopyContentFromID", $val);
|
|
}
|
|
|
|
public function ContentSource() {
|
|
return $this->CopyContentFrom();
|
|
}
|
|
|
|
/**
|
|
* For VirtualPage, add a canonical link tag linking to the original page
|
|
* See TRAC #6828 & http://support.google.com/webmasters/bin/answer.py?hl=en&answer=139394
|
|
*
|
|
* @param boolean $includeTitle Show default <title>-tag, set to false for custom templating
|
|
* @return string The XHTML metatags
|
|
*/
|
|
public function MetaTags($includeTitle = true) {
|
|
$tags = parent::MetaTags($includeTitle);
|
|
if ($this->CopyContentFrom()->ID) {
|
|
$tags .= "<link rel=\"canonical\" href=\"{$this->CopyContentFrom()->Link()}\" />\n";
|
|
}
|
|
return $tags;
|
|
}
|
|
|
|
public function allowedChildren() {
|
|
if($this->CopyContentFrom()) {
|
|
return $this->CopyContentFrom()->allowedChildren();
|
|
}
|
|
}
|
|
|
|
public function syncLinkTracking() {
|
|
if($this->CopyContentFromID) {
|
|
$this->HasBrokenLink = !(bool) DataObject::get_by_id('SiteTree', $this->CopyContentFromID);
|
|
} else {
|
|
$this->HasBrokenLink = true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* We can only publish the page if there is a published source page
|
|
*/
|
|
public function canPublish($member = null) {
|
|
return $this->isPublishable() && parent::canPublish($member);
|
|
}
|
|
|
|
/**
|
|
* Return true if we can delete this page from the live site, which is different from can
|
|
* we publish it.
|
|
*/
|
|
public function canDeleteFromLive($member = null) {
|
|
return parent::canPublish($member);
|
|
}
|
|
|
|
/**
|
|
* Returns true if is page is publishable by anyone at all
|
|
* Return false if the source page isn't published yet.
|
|
*
|
|
* Note that isPublishable doesn't affect ete from live, only publish.
|
|
*/
|
|
public function isPublishable() {
|
|
// No source
|
|
if(!$this->CopyContentFrom() || !$this->CopyContentFrom()->ID) {
|
|
return false;
|
|
}
|
|
|
|
// Unpublished source
|
|
if(!Versioned::get_versionnumber_by_stage('SiteTree', 'Live', $this->CopyContentFromID)) {
|
|
return false;
|
|
}
|
|
|
|
// Default - publishable
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Generate the CMS fields from the fields from the original page.
|
|
*/
|
|
public function getCMSFields() {
|
|
$fields = parent::getCMSFields();
|
|
|
|
// Setup the linking to the original page.
|
|
$copyContentFromField = new TreeDropdownField(
|
|
"CopyContentFromID",
|
|
_t('VirtualPage.CHOOSE', "Linked Page"),
|
|
"SiteTree"
|
|
);
|
|
// filter doesn't let you select children of virtual pages as as source page
|
|
//$copyContentFromField->setFilterFunction(create_function('$item', 'return !($item instanceof VirtualPage);'));
|
|
|
|
// Setup virtual fields
|
|
if($virtualFields = $this->getVirtualFields()) {
|
|
$roTransformation = new ReadonlyTransformation();
|
|
foreach($virtualFields as $virtualField) {
|
|
if($fields->dataFieldByName($virtualField))
|
|
$fields->replaceField($virtualField, $fields->dataFieldByName($virtualField)->transform($roTransformation));
|
|
}
|
|
}
|
|
|
|
$msgs = array();
|
|
|
|
$fields->addFieldToTab("Root.Main", $copyContentFromField, "Title");
|
|
|
|
// Create links back to the original object in the CMS
|
|
if($this->CopyContentFrom()->exists()) {
|
|
$link = "<a class=\"cmsEditlink\" href=\"admin/pages/edit/show/$this->CopyContentFromID\">"
|
|
. _t('VirtualPage.EditLink', 'edit')
|
|
. "</a>";
|
|
$msgs[] = _t(
|
|
'VirtualPage.HEADERWITHLINK',
|
|
"This is a virtual page copying content from \"{title}\" ({link})",
|
|
array(
|
|
'title' => $this->CopyContentFrom()->obj('Title'),
|
|
'link' => $link
|
|
)
|
|
);
|
|
} else {
|
|
$msgs[] = _t('VirtualPage.HEADER', "This is a virtual page");
|
|
$msgs[] = _t(
|
|
'SITETREE.VIRTUALPAGEWARNING',
|
|
'Please choose a linked page and save first in order to publish this page'
|
|
);
|
|
}
|
|
if(
|
|
$this->CopyContentFromID
|
|
&& !Versioned::get_versionnumber_by_stage('SiteTree', 'Live', $this->CopyContentFromID)
|
|
) {
|
|
$msgs[] = _t(
|
|
'SITETREE.VIRTUALPAGEDRAFTWARNING',
|
|
'Please publish the linked page in order to publish the virtual page'
|
|
);
|
|
}
|
|
|
|
$fields->addFieldToTab("Root.Main",
|
|
new LiteralField(
|
|
'VirtualPageMessage',
|
|
'<div class="message notice">' . implode('. ', $msgs) . '.</div>'
|
|
),
|
|
'CopyContentFromID'
|
|
);
|
|
|
|
return $fields;
|
|
}
|
|
|
|
public function getSettingsFields() {
|
|
$fields = parent::getSettingsFields();
|
|
if(!$this->CopyContentFrom()->exists()) {
|
|
$fields->addFieldToTab("Root.Settings",
|
|
new LiteralField(
|
|
'VirtualPageWarning',
|
|
'<div class="message notice">'
|
|
. _t(
|
|
'SITETREE.VIRTUALPAGEWARNINGSETTINGS',
|
|
'Please choose a linked page in the main content fields in order to publish'
|
|
)
|
|
. '</div>'
|
|
),
|
|
'ClassName'
|
|
);
|
|
}
|
|
|
|
return $fields;
|
|
}
|
|
|
|
/**
|
|
* We have to change it to copy all the content from the original page first.
|
|
*/
|
|
public function onBeforeWrite() {
|
|
$performCopyFrom = null;
|
|
|
|
// Determine if we need to copy values.
|
|
if(
|
|
$this->extension_instances['Versioned']->migratingVersion
|
|
&& Versioned::current_stage() == 'Live'
|
|
&& $this->CopyContentFromID
|
|
) {
|
|
// On publication to live, copy from published source.
|
|
$performCopyFrom = true;
|
|
|
|
$stageSourceVersion = DB::prepared_query(
|
|
'SELECT "Version" FROM "SiteTree" WHERE "ID" = ?',
|
|
array($this->CopyContentFromID)
|
|
)->value();
|
|
$liveSourceVersion = DB::prepared_query(
|
|
'SELECT "Version" FROM "SiteTree_Live" WHERE "ID" = ?',
|
|
array($this->CopyContentFromID)
|
|
)->value();
|
|
|
|
// We're going to create a new VP record in SiteTree_versions because the published
|
|
// version might not exist, unless we're publishing the latest version
|
|
if($stageSourceVersion != $liveSourceVersion) {
|
|
$this->extension_instances['Versioned']->migratingVersion = null;
|
|
}
|
|
} else {
|
|
// On regular write, copy from draft source. This is only executed when the source page changes.
|
|
$performCopyFrom = $this->isChanged('CopyContentFromID', 2) && $this->CopyContentFromID != 0;
|
|
}
|
|
|
|
if($performCopyFrom && $this instanceof VirtualPage) {
|
|
// This flush is needed because the get_one cache doesn't respect site version :-(
|
|
singleton('SiteTree')->flushCache();
|
|
// @todo Update get_one to support parameterised queries
|
|
$source = DataObject::get_by_id("SiteTree", $this->CopyContentFromID);
|
|
// Leave the updating of image tracking until after write, in case its a new record
|
|
$this->copyFrom($source, false);
|
|
}
|
|
|
|
parent::onBeforeWrite();
|
|
}
|
|
|
|
public function onAfterWrite() {
|
|
parent::onAfterWrite();
|
|
|
|
// Don't do this stuff when we're publishing
|
|
if(!$this->extension_instances['Versioned']->migratingVersion) {
|
|
if(
|
|
$this->isChanged('CopyContentFromID')
|
|
&& $this->CopyContentFromID != 0
|
|
&& $this instanceof VirtualPage
|
|
) {
|
|
$this->updateImageTracking();
|
|
}
|
|
}
|
|
|
|
// Check if page type has changed to a non-virtual page.
|
|
// Caution: Relies on the fact that the current instance is still of the old page type.
|
|
if($this->isChanged('ClassName', 2)) {
|
|
$changed = $this->getChangedFields();
|
|
$classBefore = $changed['ClassName']['before'];
|
|
$classAfter = $changed['ClassName']['after'];
|
|
if($classBefore != $classAfter) {
|
|
// Remove all database rows for the old page type to avoid inconsistent data retrieval.
|
|
// TODO This should apply to all page type changes, not only on VirtualPage - but needs
|
|
// more comprehensive testing as its a destructive operation
|
|
$removedTables = array_diff(ClassInfo::dataClassesFor($classBefore), ClassInfo::dataClassesFor($classAfter));
|
|
if($removedTables) foreach($removedTables as $removedTable) {
|
|
// Note: *_versions records are left intact
|
|
foreach(array('', 'Live') as $stage) {
|
|
if($stage) $removedTable = "{$removedTable}_{$stage}";
|
|
DB::prepared_query("DELETE FROM \"$removedTable\" WHERE \"ID\" = ?", array($this->ID));
|
|
}
|
|
}
|
|
|
|
// Also publish the change immediately to avoid inconsistent behaviour between
|
|
// a non-virtual draft and a virtual live record (e.g. republishing the original record
|
|
// shouldn't republish the - now unrelated - changes on the ex-VirtualPage draft).
|
|
// Copies all stage fields to live as well.
|
|
// @todo Update get_one to support parameterised queries
|
|
$source = DataObject::get_by_id("SiteTree", $this->CopyContentFromID);
|
|
$this->copyFrom($source);
|
|
$this->publish('Stage', 'Live');
|
|
|
|
// Change reference on instance (as well as removing the underlying database tables)
|
|
$this->CopyContentFromID = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
public function validate() {
|
|
$result = parent::validate();
|
|
|
|
// "Can be root" validation
|
|
$orig = $this->CopyContentFrom();
|
|
if(!$orig->stat('can_be_root') && !$this->ParentID) {
|
|
$result->error(
|
|
_t(
|
|
'VirtualPage.PageTypNotAllowedOnRoot',
|
|
'Original page type "{type}" is not allowed on the root level for this virtual page',
|
|
array('type' => $orig->i18n_singular_name())
|
|
),
|
|
'CAN_BE_ROOT_VIRTUAL'
|
|
);
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Ensure we have an up-to-date version of everything.
|
|
*/
|
|
public function copyFrom($source, $updateImageTracking = true) {
|
|
if($source) {
|
|
foreach($this->getVirtualFields() as $virtualField) {
|
|
$this->$virtualField = $source->$virtualField;
|
|
}
|
|
|
|
// We also want to copy certain, but only if we're copying the source page for the first
|
|
// time. After this point, the user is free to customise these for the virtual page themselves.
|
|
if($this->isChanged('CopyContentFromID', 2) && $this->CopyContentFromID != 0) {
|
|
foreach(self::config()->initially_copied_fields as $fieldName) {
|
|
$this->$fieldName = $source->$fieldName;
|
|
}
|
|
}
|
|
|
|
if($updateImageTracking) $this->updateImageTracking();
|
|
}
|
|
}
|
|
|
|
public function updateImageTracking() {
|
|
// Doesn't work on unsaved records
|
|
if(!$this->ID) return;
|
|
|
|
// Remove CopyContentFrom() from the cache
|
|
unset($this->components['CopyContentFrom']);
|
|
|
|
// Update ImageTracking
|
|
$this->ImageTracking()->setByIdList($this->CopyContentFrom()->ImageTracking()->column('ID'));
|
|
}
|
|
|
|
/**
|
|
* @param string $numChildrenMethod
|
|
* @return string
|
|
*/
|
|
public function CMSTreeClasses($numChildrenMethod="numChildren") {
|
|
return parent::CMSTreeClasses($numChildrenMethod) . ' VirtualPage-' . $this->CopyContentFrom()->ClassName;
|
|
}
|
|
|
|
/**
|
|
* Allow attributes on the master page to pass
|
|
* through to the virtual page
|
|
*
|
|
* @param string $field
|
|
* @return mixed
|
|
*/
|
|
public function __get($field) {
|
|
if(parent::hasMethod($funcName = "get$field")) {
|
|
return $this->$funcName();
|
|
} else if(parent::hasField($field)) {
|
|
return $this->getField($field);
|
|
} else {
|
|
return $this->copyContentFrom()->$field;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Pass unrecognized method calls on to the original data object
|
|
*
|
|
* @param string $method
|
|
* @param string $args
|
|
* @return mixed
|
|
*/
|
|
public function __call($method, $args) {
|
|
if(parent::hasMethod($method)) {
|
|
return parent::__call($method, $args);
|
|
} else {
|
|
return call_user_func_array(array($this->copyContentFrom(), $method), $args);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param string $field
|
|
* @return bool
|
|
*/
|
|
public function hasField($field) {
|
|
return (
|
|
array_key_exists($field, $this->record)
|
|
|| $this->hasDatabaseField($field)
|
|
|| array_key_exists($field, $this->db()) // Needed for composite fields
|
|
|| parent::hasMethod("get{$field}")
|
|
|| $this->CopyContentFrom()->hasField($field)
|
|
);
|
|
}
|
|
/**
|
|
* Overwrite to also check for method on the original data object
|
|
*
|
|
* @param string $method
|
|
* @return bool
|
|
*/
|
|
public function hasMethod($method) {
|
|
if(parent::hasMethod($method)) return true;
|
|
return $this->copyContentFrom()->hasMethod($method);
|
|
}
|
|
|
|
/**
|
|
* Return the "casting helper" (a piece of PHP code that when evaluated creates a casted value object) for a field
|
|
* on this object.
|
|
*
|
|
* @param string $field
|
|
* @return string
|
|
*/
|
|
public function castingHelper($field) {
|
|
if($this->copyContentFrom()) {
|
|
return $this->copyContentFrom()->castingHelper($field);
|
|
} else {
|
|
return parent::castingHelper($field);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* Controller for the virtual page.
|
|
* @package cms
|
|
*/
|
|
class VirtualPage_Controller extends Page_Controller {
|
|
|
|
private static $allowed_actions = array(
|
|
'loadcontentall' => 'ADMIN',
|
|
);
|
|
|
|
/**
|
|
* Reloads the content if the version is different ;-)
|
|
*/
|
|
public function reloadContent() {
|
|
$this->failover->copyFrom($this->failover->CopyContentFrom());
|
|
$this->failover->write();
|
|
return;
|
|
}
|
|
|
|
public function getViewer($action) {
|
|
$originalClass = get_class($this->CopyContentFrom());
|
|
if ($originalClass == 'SiteTree') $name = 'Page_Controller';
|
|
else $name = $originalClass."_Controller";
|
|
$controller = new $name();
|
|
return $controller->getViewer($action);
|
|
}
|
|
|
|
/**
|
|
* When the virtualpage is loaded, check to see if the versions are the same
|
|
* if not, reload the content.
|
|
* NOTE: Virtual page must have a container object of subclass of sitetree.
|
|
* We can't load the content without an ID or record to copy it from.
|
|
*/
|
|
public function init(){
|
|
if(isset($this->record) && $this->record->ID){
|
|
if($this->record->VersionID != $this->failover->CopyContentFrom()->Version){
|
|
$this->reloadContent();
|
|
$this->VersionID = $this->failover->CopyContentFrom()->VersionID;
|
|
}
|
|
}
|
|
parent::init();
|
|
}
|
|
|
|
public function loadcontentall() {
|
|
$pages = DataObject::get("VirtualPage");
|
|
foreach($pages as $page) {
|
|
$page->copyFrom($page->CopyContentFrom());
|
|
$page->write();
|
|
$page->publish("Stage", "Live");
|
|
echo "<li>Published $page->URLSegment";
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Also check the original object's original controller for the method
|
|
*
|
|
* @param string $method
|
|
* @return bool
|
|
*/
|
|
public function hasMethod($method) {
|
|
$haveIt = parent::hasMethod($method);
|
|
if (!$haveIt) {
|
|
$originalClass = get_class($this->CopyContentFrom());
|
|
if ($originalClass == 'SiteTree') $name = 'ContentController';
|
|
else $name = $originalClass."_Controller";
|
|
$controller = new $name($this->dataRecord->copyContentFrom());
|
|
$haveIt = $controller->hasMethod($method);
|
|
}
|
|
return $haveIt;
|
|
}
|
|
|
|
/**
|
|
* Pass unrecognized method calls on to the original controller
|
|
*
|
|
* @param string $method
|
|
* @param string $args
|
|
* @return mixed
|
|
*
|
|
* @throws Exception Any error other than a 'no method' error.
|
|
*/
|
|
public function __call($method, $args) {
|
|
try {
|
|
return parent::__call($method, $args);
|
|
} catch (Exception $e) {
|
|
// Hack... detect exception type. We really should use exception subclasses.
|
|
// if the exception isn't a 'no method' error, rethrow it
|
|
if ($e->getCode() !== 2175) throw $e;
|
|
$original = $this->copyContentFrom();
|
|
$originalClass = get_class($original);
|
|
if ($originalClass == 'SiteTree') $name = 'ContentController';
|
|
else $name = $originalClass."_Controller";
|
|
$controller = new $name($this->dataRecord->copyContentFrom());
|
|
return call_user_func_array(array($controller, $method), $args);
|
|
}
|
|
}
|
|
}
|
|
|
|
|