silverstripe-reports/code/Report.php

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<?php
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namespace SilverStripe\Reports;
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use ReflectionClass;
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use SilverStripe\CMS\Model\SiteTree;
use SilverStripe\Control\Controller;
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use SilverStripe\Control\HTTPRequest;
use SilverStripe\Core\ClassInfo;
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use SilverStripe\Core\Convert;
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use SilverStripe\Core\Injector\Injector;
use SilverStripe\Forms\FieldList;
use SilverStripe\Forms\FormAction;
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use SilverStripe\Forms\FormField;
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use SilverStripe\Forms\GridField\GridField;
use SilverStripe\Forms\GridField\GridFieldButtonRow;
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use SilverStripe\Forms\GridField\GridFieldConfig;
use SilverStripe\Forms\GridField\GridFieldDataColumns;
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use SilverStripe\Forms\GridField\GridFieldExportButton;
use SilverStripe\Forms\GridField\GridFieldPaginator;
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use SilverStripe\Forms\GridField\GridFieldPrintButton;
use SilverStripe\Forms\GridField\GridFieldSortableHeader;
use SilverStripe\Forms\LiteralField;
use SilverStripe\ORM\ArrayList;
use SilverStripe\ORM\CMSPreviewable;
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use SilverStripe\ORM\DataList;
use SilverStripe\ORM\DataQuery;
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use SilverStripe\ORM\SS_List;
use SilverStripe\Security\Member;
use SilverStripe\Security\Permission;
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use SilverStripe\Security\Security;
use SilverStripe\View\ViewableData;
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/**
* Base "abstract" class creating reports on your data.
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*
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* Creating reports
* ================
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*
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* Creating a new report is a matter overloading a few key methods
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*
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* {@link title()}: Return the title - i18n is your responsibility
* {@link description()}: Return the description - i18n is your responsibility
* {@link sourceQuery()}: Return a SS_List of the search results
* {@link columns()}: Return information about the columns in this report.
* {@link parameterFields()}: Return a FieldList of the fields that can be used to filter this
* report.
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*
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* If you wish to modify the report in more extreme ways, you could overload these methods instead.
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*
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* {@link getReportField()}: Return a FormField in the place where your report's TableListField
* usually appears.
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* {@link getCMSFields()}: Return the FieldList representing the complete right-hand area of the
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* report, including the title, description, parameter fields, and results.
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*
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* Showing reports to the user
* ===========================
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*
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* Right now, all subclasses of SS_Report will be shown in the ReportAdmin. In SS3 there is only
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* one place where reports can go, so this class is greatly simplifed from its version in SS2.
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*
* @method SS_List|DataList sourceRecords($params = [], $sort = null, $limit = null) List of records to show for this report
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*/
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class Report extends ViewableData
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{
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/**
* This is the title of the report,
* used by the ReportAdmin templates.
*
* @var string
*/
protected $title = '';
/**
* This is a description about what this
* report does. Used by the ReportAdmin
* templates.
*
* @var string
*/
protected $description = '';
/**
* The class of object being managed by this report.
* Set by overriding in your subclass.
*/
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protected $dataClass = SiteTree::class;
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/**
* A field that specifies the sort order of this report
* @var int
*/
protected $sort = 0;
/**
* Reports which should not be collected and returned in get_reports
*
* @config
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* @var array
*/
private static $excluded_reports = [
self::class,
ReportWrapper::class,
SideReportWrapper::class,
];
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/**
* Return the title of this report.
*
* You have two ways of specifying the description:
* - overriding description(), which lets you support i18n
* - defining the $description property
*/
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public function title()
{
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return $this->title;
}
/**
* Allows access to title as a property
*
* @return string
*/
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public function getTitle()
{
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return $this->title();
}
/**
* Return the description of this report.
*
* You have two ways of specifying the description:
* - overriding description(), which lets you support i18n
* - defining the $description property
*/
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public function description()
{
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return $this->description;
}
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/**
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* Return the {@link DataQuery} that provides your report data.
*
* @param array $params
* @return DataQuery
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*/
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public function sourceQuery($params)
{
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if ($this->hasMethod('sourceRecords')) {
return $this->sourceRecords($params, null, null)->dataQuery();
} else {
user_error("Please override sourceQuery()/sourceRecords() and columns() or, if necessary, override getReportField()", E_USER_ERROR);
}
}
/**
* Return a SS_List records for this report.
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*
* @param array $params
* @return SS_List
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*/
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public function records($params)
{
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if ($this->hasMethod('sourceRecords')) {
return $this->sourceRecords($params, null, null);
} else {
$query = $this->sourceQuery($params);
$results = ArrayList::create();
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foreach ($query->execute() as $data) {
$class = $this->dataClass();
$result = Injector::inst()->create($class, $data);
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$results->push($result);
}
return $results;
}
}
public function columns()
{
return [];
}
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/**
* Return the data class for this report
*/
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public function dataClass()
{
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return $this->dataClass;
}
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public function getLink($action = null)
{
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return Controller::join_links(
ReportAdmin::singleton()->Link('show'),
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$this->sanitiseClassName(static::class),
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$action
);
}
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/**
* Sanitise a model class' name for inclusion in a link
*
* @param string $class
* @return string
*/
protected function sanitiseClassName($class)
{
return str_replace('\\', '-', $class);
}
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/**
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* counts the number of objects returned
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* @param array $params - any parameters for the sourceRecords
* @return int
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*/
public function getCount($params = array())
{
$sourceRecords = $this->sourceRecords($params, null, null);
if (!$sourceRecords instanceof SS_List) {
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user_error(static::class . "::sourceRecords does not return an SS_List", E_USER_NOTICE);
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return "-1";
}
return $sourceRecords->count();
}
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/**
* Return an array of excluded reports. That is, reports that will not be included in
* the list of reports in report admin in the CMS.
*
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* @return array
*/
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public static function get_excluded_reports()
{
return (array) self::config()->get('excluded_reports');
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}
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/**
* Return the SS_Report objects making up the given list.
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*
* @return Report[] Array of Report objects
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*/
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public static function get_reports()
{
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$reports = ClassInfo::subclassesFor(get_called_class());
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$reportsArray = [];
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if ($reports && count($reports) > 0) {
$excludedReports = static::get_excluded_reports();
// Collect reports into array with an attribute for 'sort'
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foreach ($reports as $report) {
// Don't use the Report superclass, or any excluded report classes
if (in_array($report, $excludedReports)) {
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continue;
}
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$reflectionClass = new ReflectionClass($report);
// Don't use abstract classes
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if ($reflectionClass->isAbstract()) {
continue;
}
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/** @var Report $reportObj */
$reportObj = $report::create();
if ($reportObj->hasMethod('sort')) {
// Use the sort method to specify the sort field
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$reportObj->sort = $reportObj->sort();
}
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$reportsArray[$report] = $reportObj;
}
}
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uasort($reportsArray, function ($a, $b) {
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if ($a->sort == $b->sort) {
return 0;
} else {
return ($a->sort < $b->sort) ? -1 : 1;
}
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});
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return $reportsArray;
}
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/////////////////////// UI METHODS ///////////////////////
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/**
* Returns a FieldList with which to create the CMS editing form.
* You can use the extend() method of FieldList to create customised forms for your other
* data objects.
*
* @uses getReportField() to render a table, or similar field for the report. This
* method should be defined on the SS_Report subclasses.
*
* @return FieldList
*/
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public function getCMSFields()
{
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$fields = new FieldList();
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if ($description = $this->description()) {
$fields->push(new LiteralField('ReportDescription', "<p>" . $description . "</p>"));
}
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// Add search fields is available
if ($this->hasMethod('parameterFields') && $parameterFields = $this->parameterFields()) {
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/** @var FormField $field */
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foreach ($parameterFields as $field) {
// Namespace fields for easier handling in form submissions
$field->setName(sprintf('filters[%s]', $field->getName()));
$field->addExtraClass('no-change-track'); // ignore in changetracker
$fields->push($field);
}
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// Add a search button
$formAction = FormAction::create('updatereport', _t('SilverStripe\\Forms\\GridField\\GridField.Filter', 'Filter'));
$formAction->addExtraClass('btn-primary mb-4');
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$fields->push($formAction);
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}
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$fields->push($this->getReportField());
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$this->extend('updateCMSFields', $fields);
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return $fields;
}
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public function getCMSActions()
{
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// getCMSActions() can be extended with updateCMSActions() on a extension
$actions = new FieldList();
$this->extend('updateCMSActions', $actions);
return $actions;
}
/**
* Return a field, such as a {@link GridField} that is
* used to show and manipulate data relating to this report.
*
* Generally, you should override {@link columns()} and {@link records()} to make your report,
* but if they aren't sufficiently flexible, then you can override this method.
*
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* @return \SilverStripe\Forms\FormField subclass
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*/
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public function getReportField()
{
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$params = [];
if (Injector::inst()->has(HTTPRequest::class)) {
/** @var HTTPRequest $request */
$request = Injector::inst()->get(HTTPRequest::class);
$params = $request->param('filters') ?: $request->requestVar('filters') ?: [];
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}
$items = $this->sourceRecords($params, null, null);
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$gridFieldConfig = GridFieldConfig::create()->addComponents(
new GridFieldButtonRow('before'),
new GridFieldPrintButton('buttons-before-left'),
new GridFieldExportButton('buttons-before-left'),
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new GridFieldSortableHeader(),
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new GridFieldDataColumns(),
new GridFieldPaginator()
);
/** @var GridField $gridField */
$gridField = GridField::create('Report', null, $items, $gridFieldConfig);
/** @var GridFieldDataColumns $columns */
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$columns = $gridField->getConfig()->getComponentByType(GridFieldDataColumns::class);
$displayFields = [];
$fieldCasting = [];
$fieldFormatting = [];
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// Parse the column information
foreach ($this->columns() as $source => $info) {
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if (is_string($info)) {
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$info = ['title' => $info];
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}
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if (isset($info['formatting'])) {
$fieldFormatting[$source] = $info['formatting'];
}
if (isset($info['csvFormatting'])) {
$csvFieldFormatting[$source] = $info['csvFormatting'];
}
if (isset($info['casting'])) {
$fieldCasting[$source] = $info['casting'];
}
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if (isset($info['link']) && $info['link']) {
if (is_callable($info['link'])) {
$fieldFormatting[$source] = $info['link'];
} else {
$fieldFormatting[$source] = function ($value, $item) {
if ($item instanceof CMSPreviewable) {
/** @var CMSPreviewable $item */
return sprintf(
'<a class="grid-field__link-block" href="%s" title="%s">%s</a>',
Convert::raw2att($item->CMSEditLink()),
Convert::raw2att($value),
Convert::raw2xml($value)
);
}
return $value;
};
}
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}
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$displayFields[$source] = isset($info['title']) ? $info['title'] : $source;
}
$columns->setDisplayFields($displayFields);
$columns->setFieldCasting($fieldCasting);
$columns->setFieldFormatting($fieldFormatting);
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return $gridField;
}
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/**
* @param Member $member
* @return boolean
*/
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public function canView($member = null)
{
if (!$member && $member !== false) {
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$member = Security::getCurrentUser();
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}
$extended = $this->extendedCan('canView', $member);
if ($extended !== null) {
return $extended;
}
if ($member && Permission::checkMember($member, array('CMS_ACCESS_LeftAndMain', 'CMS_ACCESS_ReportAdmin'))) {
return true;
}
return false;
}
/**
* Helper to assist with permission extension
*
* {@see DataObject::extendedCan()}
*
* @param string $methodName Method on the same object, e.g. {@link canEdit()}
* @param Member|int $member
* @return boolean|null
*/
public function extendedCan($methodName, $member)
{
$results = $this->extend($methodName, $member);
if ($results && is_array($results)) {
// Remove NULLs
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$results = array_filter($results, function ($v) {
return !is_null($v);
});
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// If there are any non-NULL responses, then return the lowest one of them.
// If any explicitly deny the permission, then we don't get access
if ($results) {
return min($results);
}
}
return null;
}
/**
* Return the name of this report, which
* is used by the templates to render the
* name of the report in the report tree,
* the left hand pane inside ReportAdmin.
*
* @return string
*/
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public function TreeTitle()
{
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return $this->title();
}
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}