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68 lines
1.8 KiB
68 lines
1.8 KiB
<?php
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// (c) Copyright by authors of the Tiki Wiki CMS Groupware Project
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//
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// All Rights Reserved. See copyright.txt for details and a complete list of authors.
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// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.
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// $Id$
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class Tiki_Formula_Function_TrackerField extends Math_Formula_Function
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{
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public function evaluate($element)
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{
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$default = 0;
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$allowed = [ 'object', 'field' ];
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if ($extra = $element->getExtraValues($allowed)) {
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$this->error(tr('Unexpected values: %0', implode(', ', $extra)));
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}
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$object = $element->object;
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if (! $object || count($object) != 2) {
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$this->error(tra('Item must be provided and contain one argument: type, object-id'));
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}
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$type = $this->evaluateChild($object[0]);
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$object = $this->evaluateChild($object[1]);
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$field = $element->field;
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if (! $field || count($field) != 1) {
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$this->error(tra('Field must be provided and contain one argument: field permanent name'));
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}
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$field = $field[0];
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if ($type != 'trackeritem') {
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return $default;
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}
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return $this->fetchValue($object, $field, $default);
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}
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protected function fetchValue($object, $field, $default)
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{
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$trklib = TikiLib::lib('trk');
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$item = $trklib->get_tracker_item($object);
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if (! $item) {
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return $default;
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}
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if (! $definition = Tracker_Definition::get($item['trackerId'])) {
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return $default;
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}
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if (! $field = $definition->getFieldFromPermName($field)) {
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return $default;
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}
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$fieldId = $field['fieldId'];
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if (! isset($item[$fieldId])) {
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return $default;
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}
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return $item[$fieldId];
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}
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}
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