Custom CS search page

gist_custom_cs_search.php

<?php
// Includes
include_once('../wp-load.php');

// Set timeout
set_time_limit(0);

// Set default timezone
date_default_timezone_set('Europe/Rome');

// Read global parameters
$search_field = $_GET['search_field'];
$search_keyword = $_GET['search_keyword'];
$start = $_GET['start'];
$size = $_GET['size'];
$origin = $_GET['origin'];

// Prepare keyword
if (!empty($search_field) && !empty($search_keyword)) {
	// Search in a specific field
	$keyword = $search_field . ':' . (is_numeric($search_keyword) ? $search_keyword : '\'' . $search_keyword . '\'');
}
elseif (empty($search_field) && !empty($search_keyword)) {
	// Search in a all fields
	$keyword = $search_keyword;
}
else {
	die('Provide a valid search parameters ("search_field" or "search_keyword")');
}

// Prepare filter query (leave empty for no additional filters)
if (!empty($origin)) {
	// Use provided origin
	$filter_query = 'cf_cms_origin:' . '\'' . $origin . '\'';
}
else {
	// Use custom origins (only "wp" and "legacy")
	$filter_query = '(or cf_cms_origin:\'wp\' cf_cms_origin:\'legacy\')';
}

// Check defaults
if (empty($size)) $size = 10;
if (empty($start)) {
	$page = 0;
	$start = 0;
}
else {
	$page = (intval($start) - 1);
	$start = (intval($start) - 1) * $size;
}

echo '<h1>Query CS</h1>';
echo '<h3>Data</h3>';
echo '<ul>';
echo '<li><i>keyword</i>: ' . $keyword . '</li>';
echo '<li><i>filter</i>: ' . $filter_query . '</li>';
echo '<li><i>start</i>: ' . $start . '</li>';
echo '<li><i>size</i>: ' . $size . '</li>';
echo '</ul>';

try {
	// Search full data
	$acs_result = acs_index_documents_search($keyword, ACS::TYPE_FIELD_DEFAULT, $start, $size, 'structured', $filter_query, true, ACS::TYPE_FIELD_DEFAULT, ACS::SORT_FIELD_DEFAULT, ACS::SORT_ORDER_DEFAULT, true);
	$result_search = $acs_result->get_data();
}
catch (Exception $e) {
	$result_search = array();

	echo '<h3>Results</h3>';
	echo '<ul>';
	echo '<li>Error: ' . $e->getMessage() . '</li>';
	echo '</ul>';
}

echo '<h3>Results (' . count($result_search['items']) . ')</h3>';
echo '<ul>';

if (!empty($result_search) && count($result_search['items']) > 0) {
	// Loop over document founded
	foreach ($result_search['items'] as $item) {
		// Get post data
		$post_id = $item['id'][0];
		$post_type = $item['post_type'][0];
		$post_title = $item['post_title'][0];
		$post_content = $item['post_content'][0];

		echo '<li><i>item</i>: ' . $post_id . ' - ' . $post_type . ' - ' . $post_title . ' - ' . $post_content . '</li>';
	}

	// Manage pagination info
	$found_items = $result_search['found'];
	$total_pages = intval($result_search['found'] / $size) + 1;
	$current_page = $page + 1;

	// Calculate pagination
	if (!empty($found_items) && !empty($current_page) && !empty($total_pages)) {
		echo '<nav class="pagination">';
		echo '<ul class="pagination" style="list-style: none; padding: 20px 0;">';

		if ($current_page >= 4) echo '<li style="display: inline-block; margin: 0 5px;"><a href="' . decode_pagination_url(1) . '">1</a></li>';
		if ($current_page > 4) echo '<li style="display: inline-block; margin: 0 5px;"><span>&hellip;</span></li>';
		if ($current_page - 2 >= 1) echo '<li style="display: inline-block; margin: 0 5px;"><a href="' . decode_pagination_url($current_page - 2) . '">' . ($current_page - 2) . '</a></li>';
		if ($current_page - 1 >= 1) echo '<li style="display: inline-block; margin: 0 5px;"><a href="' . decode_pagination_url($current_page - 1) . '">' . ($current_page - 1) . '</a></li>';
		if ($current_page != $total_pages) echo '<li class="active" style="display: inline-block; margin: 0 5px;"><a href="' . decode_pagination_url($current_page) . '">' . $current_page . '</a></li>';
		if ($current_page + 1 < $total_pages) echo '<li style="display: inline-block; margin: 0 5px;"><a href="' . decode_pagination_url($current_page + 1) . '">' . ($current_page + 1) . '</a></li>';
		if ($current_page + 2 < $total_pages) echo '<li style="display: inline-block; margin: 0 5px;"><a href="' . decode_pagination_url($current_page + 2) . '">' . ($current_page + 2) . '</a></li>';
		if ($current_page + 4 <= $total_pages) echo '<li style="display: inline-block; margin: 0 5px;"><span>&hellip;</span></li>';

		echo '<li class="' . (($current_page == $total_pages) ? 'active' : '') . '" style="display: inline-block; margin: 0 5px;"><a href="' .  decode_pagination_url($total_pages) . '">' .  $total_pages . '</a></li>';

		echo '</ul>';
		echo '</nav>';
	}
}
else {
	// No documents founded
	echo '<li>No document founded</li>';
}

echo '</ul>';

/**
 * Get pagination link
 *
 * @param int $page
 *
 * @return string
 */
function decode_pagination_url($page = 1) {
	// Get page URL
	$page_url = (isset($_SERVER['HTTPS']) ? 'http' : 'http') . '://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'];

	// GEt page parameters
	$page_parameters = $_SERVER['QUERY_STRING'];

	if (!empty($page_parameters)) {
		$parameters = explode('&', $page_parameters);
		$page_url .= '?';
		$count = 0;

		foreach ($parameters as $parameter) {
			$parameter_values = explode('=', $parameter);

			if ($parameter_values[0] == 'start') {
				$page_url .= (($page == 1) ? '' : ((($count != 0 ) ? '&' : '') . 'start=' . $page));
			}
			elseif (!empty($parameter_values[0])) {
				$page_url .= ($count != 0 ) ? '&' : '';
				$page_url .= $parameter_values[0] . '=' . $parameter_values[1];
			}

			$count = $count + 1;
		}

		if (strpos($page_parameters, 'start=') === false) {
			// No start parameter found, add it
			$page_url .= (($page == 1) ? '' : ((($count != 0 ) ? '&' : '') . 'start=' . $page));
		}
	}

	return $page_url;
}