silverstripe-subsites/code/reports/SubsiteReportWrapper.php

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<?php
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namespace SilverStripe\Subsites\Reports;
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use SilverStripe\Forms\FieldList;
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use SilverStripe\Forms\TreeMultiselectField;
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use SilverStripe\Reports\ReportWrapper;
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use SilverStripe\Subsites\Model\Subsite;
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/**
* Creates a subsite-aware version of another report.
* Pass another report (or its classname) into the constructor.
*/
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class SubsiteReportWrapper extends ReportWrapper
{
///////////////////////////////////////////////////////////////////////////////////////////
// Filtering
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public function parameterFields()
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{
$subsites = Subsite::accessible_sites('CMS_ACCESS_CMSMain', true);
$options = $subsites->toDropdownMap('ID', 'Title');
$subsiteField = new TreeMultiselectField(
'Subsites',
_t('SubsiteReportWrapper.ReportDropdown', 'Sites'),
$options
);
$subsiteField->setValue(array_keys($options));
// We don't need to make the field editable if only one subsite is available
if (sizeof($options) <= 1) {
$subsiteField = $subsiteField->performReadonlyTransformation();
}
$fields = parent::parameterFields();
if ($fields) {
$fields->insertBefore($subsiteField, $fields->First()->Name());
} else {
$fields = new FieldList($subsiteField);
}
return $fields;
}
///////////////////////////////////////////////////////////////////////////////////////////
// Columns
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public function columns()
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{
$columns = parent::columns();
$columns['Subsite.Title'] = Subsite::class;
return $columns;
}
///////////////////////////////////////////////////////////////////////////////////////////
// Querying
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public function beforeQuery($params)
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{
// The user has select a few specific sites
if (!empty($params['Subsites'])) {
Subsite::$force_subsite = $params['Subsites'];
// Default: restrict to all accessible sites
} else {
$subsites = Subsite::accessible_sites('CMS_ACCESS_CMSMain');
$options = $subsites->toDropdownMap('ID', 'Title');
Subsite::$force_subsite = join(',', array_keys($options));
}
}
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public function afterQuery()
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{
// Manually manage the subsite filtering
Subsite::$force_subsite = null;
}
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}