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<?php
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// $Id: gallery_search.inc,v 1.2.2.8 2007/09/10 18:04:08 profix898 Exp $
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/**
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* gallery.module search functions
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*/
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/**
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* Implementation of hook_search().
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*/
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function _gallery_search($op = 'search', $keys = NULL) {
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switch ($op) {
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case 'name':
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return t('Gallery');
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case 'search':
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$results = array();
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$html_head = array();
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$items_per_row = variable_get('gallery_search_num_per_row', 3);
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$rows_per_pager = variable_get('gallery_search_rows_per_pager', 4);
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$matches = _gallery_search_pager_search($keys, $items_per_row * $rows_per_pager);
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if ($matches['count']) {
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$results['count'] = $matches['count'];
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// parameters for the search results
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$params = array();
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$params['blocks'] = 'specificItem';
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$param_show_array = variable_get('gallery_search_block_show', array());
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$params['show'] = is_array($param_show_array) ? implode('|', $param_show_array) : '';
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if (variable_get('gallery_search_size_method',
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GALLERY_SEARCH_SIZE_METHOD_DEFAULT) == 'maxsize') {
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$params['maxSize'] = variable_get('gallery_search_size', GALLERY_SEARCH_SIZE_DEFAULT);
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}
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else {
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$params['exactSize'] = variable_get('gallery_search_size', GALLERY_SEARCH_SIZE_DEFAULT);
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}
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$params['albumFrame'] = variable_get('gallery_search_album_frame', 'none');
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$params['itemFrame'] = variable_get('gallery_search_item_frame', 'none');
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$params['linkTarget'] = variable_get('gallery_search_link_target', '');
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$params['link'] = variable_get('gallery_search_link', '');
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$show_thumbs = variable_get('gallery_search_show_thumbs', 1);
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// loop over the results
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foreach ($matches['results'] as $item) {
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$excerpt = array();
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// get a thumbnail for this item
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if ($show_thumbs) {
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$params['itemId'] = $item['itemId'];
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list($ret, $thumbnail, $head) = GalleryEmbed::getImageBlock($params);
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if ($ret) {
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$thumbnail = t('n/a');
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}
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if ($head) {
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$html_head[] = $head;
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}
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}
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// generate a snippet with highlighted search keys
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foreach ($item['fields'] as $field) {
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if (preg_match("/$keys/i", $field['value'])) {
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$excerpt[] = '<em>'. $field['key'] .':</em> '. search_excerpt($keys, $field['value']);
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}
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}
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// put everything into the $results array
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$title = reset($item['fields']);
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$results[] = array(
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'link' => gallery_generate_url(array('itemId' => $item['itemId']), FALSE),
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'title' => empty($title['value']) ? t('Gallery item: Untitled') : $title['value'],
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'snippet' => implode('<br />', $excerpt),
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'thumbnail' => $thumbnail,
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);
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}
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}
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if ($html_head) {
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drupal_set_html_head(implode("\n", array_unique($html_head)));
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}
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return $results;
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}
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}
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/**
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* Function _gallery_search_pager_search().
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*/
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function _gallery_search_pager_search(&$keys, $limit = 10, $element = 0) {
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// adapted version of the pager_query() function (from /includes/pager.inc)
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// for use with the Gallery2 search() function
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//
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global $pager_page_array, $pager_total, $pager_total_items;
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$page = isset($_GET['page']) ? $_GET['page'] : '';
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// convert comma-separated $page to an array, used by other functions.
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$pager_page_array = explode(',', $page);
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// we calculate the total of pages as ceil(items / limit).
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$count = _gallery_search_perform($keys);
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$pager_total_items[$element] = $count['count'];
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$pager_total[$element] = ceil($pager_total_items[$element] / $limit);
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$pager_page_array[$element] = max(0, min((int)$pager_page_array[$element], ((int)$pager_total[$element]) - 1));
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return _gallery_search_perform($keys, $pager_page_array[$element] * $limit, $limit);
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}
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/**
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* Function _gallery_search_perform().
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*/
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function _gallery_search_perform(&$keys, $offset = 0, $limit = -1) {
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list($search_interface, $options) = _gallery_search_init();
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if (!$search_interface) {
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return array();
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}
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// extract query parameters
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if ($fields = search_query_extract($keys, 'fields')) {
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$keys = trim(preg_replace('/\s+fields:[\w,]*/', '', $keys));
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}
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$fields = $fields ? array_flip(explode(',', $fields)) : $options;
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foreach ($fields as $key => $value) {
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$fields[$key] = $key;
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}
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// perform the actual search
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list($ret, $matches) = $search_interface->search($fields, $keys, $offset, $limit);
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if ($ret) {
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gallery_error(t('Error invoking search() method.'), $ret);
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return array();
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}
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return $matches;
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}
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/**
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* Function _gallery_search_form().
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*/
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function _gallery_search_form(&$form) {
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list($search_interface, $options) = _gallery_search_init();
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if (!count($options)) {
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return;
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}
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// extend search form
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$form['advanced'] = array(
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'#type' => 'fieldset',
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'#title' => t('Advanced search'),
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'#collapsible' => TRUE,
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'#collapsed' => TRUE,
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'#attributes' => array('class' => 'search-advanced'),
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);
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$form['advanced']['fields'] = array(
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'#type' => 'checkboxes',
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'#title' => t('Only the following fields'),
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'#prefix' => '<div class="criterion">',
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'#suffix' => '</div>',
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'#options' => $options,
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);
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$form['advanced']['submit'] = array(
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'#type' => 'submit',
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'#value' => t('Advanced search'),
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'#prefix' => '<div class="action clear-block">',
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'#suffix' => '</div>',
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);
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$form['#validate']['_gallery_search_validate'] = array();
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}
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/**
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* Function _gallery_search_validate().
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*/
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function _gallery_search_validate($form_id, $form_values, $form) {
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$keys = $form_values['processed_keys'];
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// append field options to query
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if (isset($form_values['fields']) && is_array($form_values['fields'])) {
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$form_values['fields'] = array_filter($form_values['fields']);
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if (count($form_values['fields'])) {
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$keys = search_query_insert($keys, 'fields', implode(',', array_keys($form_values['fields'])));
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form_set_value($form['basic']['inline']['processed_keys'], trim($keys));
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}
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}
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}
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/**
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* Function _gallery_search_init().
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*/
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function _gallery_search_init() {
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// init gallery
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if (!_gallery_init(TRUE)) {
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return array();
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}
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// create instance of search interface
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list($ret, $search_interface) = GalleryCoreApi::newFactoryInstance('GallerySearchInterface_1_0');
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if ($ret) {
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gallery_error(t('Error creating instance of GallerySearchInterface. Make sure the \'Search\' plugin is enabled in Gallery2.'), $ret);
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return array(NULL, array());
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}
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// get search module info
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list($ret, $module_info) = $search_interface->getSearchModuleInfo();
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if ($ret) {
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gallery_error(t('Error getting \'Search\' module options.'), $ret);
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return array(NULL, array());
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}
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$options = array();
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foreach ($module_info['options'] as $module => $info) {
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if ($info['enabled']) {
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$options[$module] = $info['description'];
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}
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}
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return array($search_interface, $options);
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}
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/**
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* Function _gallery_search_page().
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*/
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function _gallery_search_page($results) {
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$items_per_row = variable_get('gallery_search_num_per_row', 3);
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$rows_per_pager = variable_get('gallery_search_rows_per_pager', 4);
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$output = '<dl class="search-results">';
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$output .= t('<p>Total Number of Matches: @count</p>', array('@count' => $results['count']));
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unset($results['count']);
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// arrange items as table
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$rows = array();
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$results = array_chunk($results, $items_per_row);
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foreach ($results as $item_row) {
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$row = array();
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foreach ($item_row as $item) {
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$row[] = array('data' => theme('gallery_search_item', $item));
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}
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$rows[] = $row;
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}
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$output .= theme('table', array(), $rows);
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$output .= '</dl>';
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$output .= theme('pager', NULL, $items_per_row * $rows_per_pager, 0);
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return $output;
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}
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/**
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* Theme function : theme_gallery_search_item().
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*/
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function theme_gallery_search_item($item) {
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$output = ' <dt class="title"><a href="'. check_url($item['link']) .'">'. check_plain($item['title']) .'</a></dt>';
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$output .= '<div class="g2image_centered">'. $item['thumbnail'] .'</div>';
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$output .= ' <dd>'. ($item['snippet'] ? '<p>'. $item['snippet'] .'</p>' : '') .'</dd>';
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return $output;
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}
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