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SearchByMetadataPlugin.php
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SearchByMetadataPlugin.php
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<?php
class SearchByMetadataPlugin extends Omeka_Plugin_AbstractPlugin
{
protected $_hooks = array(
'uninstall',
'config',
'config_form',
);
public function setUp()
{
parent::setUp();
$linkedElements = unserialize(get_option('search_by_metadata_elements'));
if(is_array($linkedElements)){
foreach($linkedElements as $elementSet=>$elements) {
foreach($elements as $element) {
//don't add links on DC:Title if on browse pages,
//as this creates links right back to the browse page search
//need to punt to a special filter, since Request doesn't exist here
if ($elementSet == 'Dublin Core'
&& $element == 'Title') {
add_filter(array('Display', 'Item', $elementSet, $element), array($this, 'linkDcTitle'));
} else {
add_filter(array('Display', 'Item', $elementSet, $element), array($this, 'link'));
}
}
}
}
}
public function hookInstall()
{
set_option('search_by_metadata_elements', serialize(array()));
}
public function hookUninstall()
{
delete_option('search_by_metadata_elements');
}
public function hookConfig($args)
{
$post = $args['post'];
$elements = array();
$elTable = get_db()->getTable('Element');
foreach($post['element_sets'] as $elId) {
$element = $elTable->find($elId);
$elSet = $element->getElementSet();
if(!array_key_exists($elSet->name, $elements)) {
$elements[$elSet->name] = array();
}
$elements[$elSet->name][] = $element->name;
}
set_option('search_by_metadata_elements', serialize($elements));
}
public function hookConfigForm()
{
include('config_form.php');
}
public function linkDcTitle($text, $args)
{
$request = Zend_Controller_Front::getInstance()->getRequest();
$action = $request->getActionName();
if ($action != 'browse') {
return $this->link($text, $args);
}
return $text;
}
public function link($text, $args)//$record, $elementText)
{
$record = $args['record'];
$elementText = $args['element_text'];
if (trim($text) == '' || !$elementText) return $text;
$elementId = $elementText->element_id;
$url = url('items/browse', array(
'advanced' => array(
array(
'element_id' => $elementId,
'type' => 'is exactly',
'terms' =>$elementText->text,
)
)
));
return "<a href=\"$url\">$text</a>";
}
}