silverstripe-subsites/code/tasks/SubsiteCopyPagesTask.php

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<?php
/**
* Handy alternative to copying pages when creating a subsite through the UI.
*
* Can be used to batch-add new pages after subsite creation, or simply to
* process a large site outside of the UI.
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*
* Example: sake dev/tasks/SubsiteCopyPagesTask from=<subsite-source> to=<subsite-target>
*
* @package subsites
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*/
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class SubsiteCopyPagesTask extends BuildTask
{
protected $title = 'Copy pages to different subsite';
protected $description = '';
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public function run($request)
{
$subsiteFromId = $request->getVar('from');
if (!is_numeric($subsiteFromId)) {
throw new InvalidArgumentException('Missing "from" parameter');
}
$subsiteFrom = DataObject::get_by_id('Subsite', $subsiteFromId);
if (!$subsiteFrom) {
throw new InvalidArgumentException('Subsite not found');
}
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$subsiteToId = $request->getVar('to');
if (!is_numeric($subsiteToId)) {
throw new InvalidArgumentException('Missing "to" parameter');
}
$subsiteTo = DataObject::get_by_id('Subsite', $subsiteToId);
if (!$subsiteTo) {
throw new InvalidArgumentException('Subsite not found');
}
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$useVirtualPages = (bool)$request->getVar('virtual');
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Subsite::changeSubsite($subsiteFrom);
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// Copy data from this template to the given subsite. Does this using an iterative depth-first search.
// This will make sure that the new parents on the new subsite are correct, and there are no funny
// issues with having to check whether or not the new parents have been added to the site tree
// when a page, etc, is duplicated
$stack = array(array(0,0));
while (count($stack) > 0) {
list($sourceParentID, $destParentID) = array_pop($stack);
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$children = Versioned::get_by_stage('SiteTree', 'Live', "\"ParentID\" = $sourceParentID", '');
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if ($children) {
foreach ($children as $child) {
if ($useVirtualPages) {
$childClone = new SubsitesVirtualPage();
$childClone->writeToStage('Stage');
$childClone->CopyContentFromID = $child->ID;
$childClone->SubsiteID = $subsiteTo->ID;
} else {
$childClone = $child->duplicateToSubsite($subsiteTo->ID, true);
}
$childClone->ParentID = $destParentID;
$childClone->writeToStage('Stage');
$childClone->publish('Stage', 'Live');
array_push($stack, array($child->ID, $childClone->ID));
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$this->log(sprintf('Copied "%s" (#%d, %s)', $child->Title, $child->ID, $child->Link()));
}
}
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unset($children);
}
}
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public function log($msg)
{
echo $msg . "\n";
}
}