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57 lines
1.8 KiB
57 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_Attribute extends Math_Formula_Function
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{
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public function evaluate($element)
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{
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$allowed = [ 'object', 'default', 'property' ];
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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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$this->error(tra('Object must be provided and contain two arguments: type and object'));
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}
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$type = $this->evaluateChild($object[0]);
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$object = $this->evaluateChild($object[1]);
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if (( $property = $element->property ) && count($property) == 1) {
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$property = $property[0];
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} else {
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$this->error(tra('Invalid property.'));
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}
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if ($property instanceof Math_Formula_Element) {
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$property = $this->evaluateChild($property);
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}
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if ($type == 'wiki page' && is_numeric($object)) {
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$tikilib = TikiLib::lib('tiki');
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$object = $tikilib->get_page_name_from_id($object);
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}
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$attributelib = TikiLib::lib('attribute');
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$values = $attributelib->get_attributes($type, $object);
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// Attributes are always lowercase
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$property = strtolower($property);
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if (isset($values[$property])) {
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return $values[$property];
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} elseif (( $default = $element->default ) && count($default) == 1) {
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return $this->evaluateChild($default[0]);
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} else {
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return 0;
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}
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}
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}
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