sdr/search/model/SDRMetadataObj.php5

<?php

class SDRMetadataObj extends SXMLModel {
    public function __construct($xml = null) {
        parent::__construct();

        $this->registerNodeName('metadata');

        if($xml)
            $this->setXML($xml);
    }

    protected function setXMLImpl($xml) {
        $attrs = array();

        foreach($xml->children() as $child) {
            $name = $child->getName();
            if(!$this->attributeExists($name)) {
                $this->addAttribute($name, array('type' => 'string', 'array' => true));
                $attrs[$name] = array( (string)$child );
            }
            else {
                $attrs[$name][] = (string)$child;
            }
        }

        foreach($attrs as $a => $v) {
            // Remove duplicate entries
            $this->set($a, array_unique($v));
        }

        return true;
    }

    public function addTag($name, $value, $reset = false) {
        // If the attribute does not exist, create it and set it as a single-element array
        // containing the value
        if(!$this->attributeExists($name)) {
            $this->addAttribute($name, array('type' => 'string', 'array' => true));
            if(is_array($value))
                $this->set($name, $value);
            else
                $this->set($name, array($value));
        }
        // If the attribute already exists, "push" our value on by accessing the current
        // array, adding an extra value, and setting the resulting array back on the object
        // TODO: is there an easier way to do this with SModel2?
        else {
            if($this->isAttributeArray($name)) {
                if($reset) {
                    if(is_array($value))
                        $attrs = $value;
                    else
                        $attrs = array((string)$value);
                }
                else {
                    $attrs = $this->get($name);
                    if(is_array($value))
                        $attrs = array_merge($attrs, $value);
                    else
                        $attrs[]= (string)$value;
                    $attrs = array_unique($attrs);
                }
                $this->set($name, $attrs);
            }
            else
                $this->set($name, $value);
        }
    }

    public function removeTag($name, $value = null) {
        // Remove all values of tag (reset the attr to empty)
        if ($value == null) {
            $this->set($name, array());
        }
        // Search for and remove every attr value matching $value
        else {
            $attrs = $this->get($name);
            foreach ($attrs as $index => $attrVal) {
                if ($attrVal == $value) {
                    unset($attrs[$index]);
                }
            }
            $this->set($name, $attrs);
        }
    }
}

?>

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