<?php
/**
* COPS (Calibre OPDS PHP Server) class file
*
* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
* @author Sébastien Lucas <sebastien@slucas.fr>
*/
define ("VERSION", "0.6.1");
date_default_timezone_set($config['default_timezone']);
function getURLParam ($name, $default = NULL) {
if (!empty ($_GET) && isset($_GET[$name]) && $_GET[$name] != "") {
return $_GET[$name];
}
return $default;
}
function getCurrentOption ($option) {
global $config;
if (isset($_COOKIE[$option])) {
return $_COOKIE[$option];
}
if ($option == "style") {
return "default";
}
if (isset($config ["cops_" . $option])) {
return $config ["cops_" . $option];
}
return "";
}
function getCurrentCss () {
return "styles/style-" . getCurrentOption ("style") . ".css";
}
function getUrlWithVersion ($url) {
return $url . "?v=" . VERSION;
}
function xml2xhtml($xml) {
return preg_replace_callback('#<(\w+)([^>]*)\s*/>#s', create_function('$m', '
$xhtml_tags = array("br", "hr", "input", "frame", "img", "area", "link", "col", "base", "basefont", "param");
return in_array($m[1], $xhtml_tags) ? "<$m[1]$m[2] />" : "<$m[1]$m[2]></$m[1]>";
'), $xml);
}
function display_xml_error($error)
{
$return .= str_repeat('-', $error->column) . "^\n";
switch ($error->level) {
case LIBXML_ERR_WARNING:
$return .= "Warning $error->code: ";
break;
case LIBXML_ERR_ERROR:
$return .= "Error $error->code: ";
break;
case LIBXML_ERR_FATAL:
$return .= "Fatal Error $error->code: ";
break;
}
$return .= trim($error->message) .
"\n Line: $error->line" .
"\n Column: $error->column";
if ($error->file) {
$return .= "\n File: $error->file";
}
return "$return\n\n--------------------------------------------\n\n";
}
function are_libxml_errors_ok ()
{
$errors = libxml_get_errors();
foreach ($errors as $error) {
if ($error->code == 801) return false;
}
return true;
}
function html2xhtml ($html) {
$doc = new DOMDocument();
libxml_use_internal_errors(true);
$doc->loadHTML('<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body>' .
$html . '</body></html>'); // Load the HTML
$output = $doc->saveXML($doc->documentElement); // Transform to an Ansi xml stream
$output = xml2xhtml($output);
if (preg_match ('#<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></meta></head><body>(.*)</body></html>#ms', $output, $matches)) {
$output = $matches [1]; // Remove <html><body>
}
/*
// In case of error with summary, use it to debug
$errors = libxml_get_errors();
foreach ($errors as $error) {
$output .= display_xml_error($error);
}
*/
if (!are_libxml_errors_ok ()) $output = "HTML code not valid.";
libxml_use_internal_errors(false);
return $output;
}
/**
* This method is a direct copy-paste from
* http://tmont.com/blargh/2010/1/string-format-in-php
*/
function str_format($format) {
$args = func_get_args();
$format = array_shift($args);
preg_match_all('/(?=\{)\{(\d+)\}(?!\})/', $format, $matches, PREG_OFFSET_CAPTURE);
$offset = 0;
foreach ($matches[1] as $data) {
$i = $data[0];
$format = substr_replace($format, @$args[$i], $offset + $data[1] - 1, 2 + strlen($i));
$offset += strlen(@$args[$i]) - 2 - strlen($i);
}
return $format;
}
/**
* This method is based on this page
* http://www.mind-it.info/2010/02/22/a-simple-approach-to-localization-in-php/
*/
function localize($phrase, $count=-1) {
if ($count == 0)
$phrase .= ".none";
if ($count == 1)
$phrase .= ".one";
if ($count > 1)
$phrase .= ".many";
/* Static keyword is used to ensure the file is loaded only once */
static $translations = NULL;
/* If no instance of $translations has occured load the language file */
if (is_null($translations)) {
$lang = "en";
if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE']))
{
$lang = substr($_SERVER['HTTP_ACCEPT_LANGUAGE'], 0, 2);
}
$lang_file_en = NULL;
$lang_file = 'lang/Localization_' . $lang . '.json';
if (!file_exists($lang_file)) {
$lang_file = 'lang/' . 'Localization_en.json';
}
elseif ($lang != "en") {
$lang_file_en = 'lang/' . 'Localization_en.json';
}
$lang_file_content = file_get_contents($lang_file);
/* Load the language file as a JSON object and transform it into an associative array */
$translations = json_decode($lang_file_content, true);
if ($lang_file_en)
{
$lang_file_content = file_get_contents($lang_file_en);
$translations_en = json_decode($lang_file_content, true);
$translations = array_merge ($translations_en, $translations);
}
}
if (array_key_exists ($phrase, $translations)) {
return $translations[$phrase];
}
return $phrase;
}
function addURLParameter($urlParams, $paramName, $paramValue) {
$start = "";
if (preg_match ("#^\?(.*)#", $urlParams, $matches)) {
$start = "?";
$urlParams = $matches[1];
}
$params = array();
parse_str($urlParams, $params);
if (empty ($paramValue) && $paramValue != 0) {
unset ($params[$paramName]);
} else {
$params[$paramName] = $paramValue;
}
return $start . http_build_query($params);
}
class Link
{
const OPDS_THUMBNAIL_TYPE = "http://opds-spec.org/image/thumbnail";
const OPDS_IMAGE_TYPE = "http://opds-spec.org/image";
const OPDS_ACQUISITION_TYPE = "http://opds-spec.org/acquisition/open-access";
const OPDS_NAVIGATION_TYPE = "application/atom+xml;profile=opds-catalog;kind=navigation";
const OPDS_PAGING_TYPE = "application/atom+xml;profile=opds-catalog;kind=acquisition";
public $href;
public $type;
public $rel;
public $title;
public $facetGroup;
public $activeFacet;
public function __construct($phref, $ptype, $prel = NULL, $ptitle = NULL, $pfacetGroup = NULL, $pactiveFacet = FALSE) {
$this->href = $phref;
$this->type = $ptype;
$this->rel = $prel;
$this->title = $ptitle;
$this->facetGroup = $pfacetGroup;
$this->activeFacet = $pactiveFacet;
}
public function hrefXhtml () {
return $this->href;
}
}
class LinkNavigation extends Link
{
public function __construct($phref, $prel = NULL, $ptitle = NULL) {
parent::__construct ($phref, Link::OPDS_NAVIGATION_TYPE, $prel, $ptitle);
if (!preg_match ("#^\?(.*)#", $this->href) && !empty ($this->href)) $this->href = "?" . $this->href;
if (preg_match ("/(bookdetail|getJSON).php/", $_SERVER["SCRIPT_NAME"])) {
$this->href = "index.php" . $this->href;
} else {
$this->href = $_SERVER["SCRIPT_NAME"] . $this->href;
}
}
}
class LinkFacet extends Link
{
public function __construct($phref, $ptitle = NULL, $pfacetGroup = NULL, $pactiveFacet = FALSE) {
parent::__construct ($phref, Link::OPDS_PAGING_TYPE, "http://opds-spec.org/facet", $ptitle, $pfacetGroup, $pactiveFacet);
$this->href = $_SERVER["SCRIPT_NAME"] . $this->href;
}
}
class Entry
{
public $title;
public $id;
public $content;
public $contentType;
public $linkArray;
public $localUpdated;
private static $updated = NULL;
public static $icons = array(
Author::ALL_AUTHORS_ID => 'images/author.png',
Serie::ALL_SERIES_ID => 'images/serie.png',
Book::ALL_RECENT_BOOKS_ID => 'images/recent.png',
Tag::ALL_TAGS_ID => 'images/tag.png',
Language::ALL_LANGUAGES_ID => 'images/language.png',
"calibre:books$" => 'images/allbook.png',
"calibre:books:letter" => 'images/allbook.png'
);
public function getUpdatedTime () {
if (!is_null ($this->localUpdated)) {
return date (DATE_ATOM, $this->localUpdated);
}
if (is_null (self::$updated)) {
self::$updated = time();
}
return date (DATE_ATOM, self::$updated);
}
public function getContentArray () {
$navlink = "#";
foreach ($this->linkArray as $link) {
if ($link->type != Link::OPDS_NAVIGATION_TYPE) { continue; }
$navlink = $link->hrefXhtml ();
}
return array ( "title" => $this->title, "content" => $this->content, "navlink" => $navlink );
}
public function __construct($ptitle, $pid, $pcontent, $pcontentType, $plinkArray) {
global $config;
$this->title = $ptitle;
$this->id = $pid;
$this->content = $pcontent;
$this->contentType = $pcontentType;
$this->linkArray = $plinkArray;
if ($config['cops_show_icons'] == 1)
{
foreach (self::$icons as $reg => $image)
{
if (preg_match ("/" . $reg . "/", $pid)) {
array_push ($this->linkArray, new Link (getUrlWithVersion ($image), "image/png", Link::OPDS_THUMBNAIL_TYPE));
break;
}
}
}
}
}
class EntryBook extends Entry
{
public $book;
public function __construct($ptitle, $pid, $pcontent, $pcontentType, $plinkArray, $pbook) {
parent::__construct ($ptitle, $pid, $pcontent, $pcontentType, $plinkArray);
$this->book = $pbook;
$this->localUpdated = $pbook->timestamp;
}
public function getContentArray () {
$entry = array ( "title" => $this->title);
$entry ["book"] = $this->book->getContentArray ();
return $entry;
}
public function getCoverThumbnail () {
foreach ($this->linkArray as $link) {
if ($link->rel == Link::OPDS_THUMBNAIL_TYPE)
return $link->hrefXhtml ();
}
return null;
}
public function getCover () {
foreach ($this->linkArray as $link) {
if ($link->rel == Link::OPDS_IMAGE_TYPE)
return $link->hrefXhtml ();
}
return null;
}
}
class Page
{
public $title;
public $subtitle = "";
public $idPage;
public $idGet;
public $query;
public $favicon;
public $n;
public $book;
public $totalNumber = -1;
public $entryArray = array();
public static function getPage ($pageId, $id, $query, $n)
{
switch ($pageId) {
case Base::PAGE_AUTHORS_FIRST_LETTER :
return new PageAllAuthorsLetter ($id, $query, $n);
case Base::PAGE_AUTHORS_STARTING_LETTERS :
return new PageAuthorsLetter ($id, $query, $n);
case Base::PAGE_AUTHOR_DETAIL :
return new PageAuthorDetail ($id, $query, $n);
case Base::PAGE_ALL_TAGS :
return new PageAllTags ($id, $query, $n);
case Base::PAGE_TAG_DETAIL :
return new PageTagDetail ($id, $query, $n);
case Base::PAGE_ALL_LANGUAGES :
return new PageAllLanguages ($id, $query, $n);
case Base::PAGE_LANGUAGE_DETAIL :
return new PageLanguageDetail ($id, $query, $n);
case Base::PAGE_ALL_SERIES :
return new PageAllSeries ($id, $query, $n);
case Base::PAGE_SERIES_STARTING_LETTERS :
return new PageAllSeriesStartingLetters ($id, $query, $n);
case Base::PAGE_ALL_BOOKS :
return new PageAllBooks ($id, $query, $n);
case Base::PAGE_ALL_BOOKS_LETTER:
return new PageAllBooksLetter ($id, $query, $n);
case Base::PAGE_ALL_RECENT_BOOKS :
return new PageRecentBooks ($id, $query, $n);
case Base::PAGE_SERIE_DETAIL :
return new PageSerieDetail ($id, $query, $n);
case Base::PAGE_OPENSEARCH_QUERY :
return new PageQueryResult ($id, $query, $n);
case Base::PAGE_BOOK_DETAIL :
return new PageBookDetail ($id, $query, $n);
case Base::PAGE_ABOUT :
return new PageAbout ($id, $query, $n);
case Base::PAGE_CUSTOMIZE :
return new PageCustomize ($id, $query, $n);
default:
$page = new Page ($id, $query, $n);
$page->idPage = "cops:catalog";
return $page;
}
}
public function __construct($pid, $pquery, $pn) {
global $config;
$this->idGet = $pid;
$this->query = $pquery;
$this->n = $pn;
$this->favicon = $config['cops_icon'];
}
public function InitializeContent ()
{
global $config;
$this->title = $config['cops_title_default'];
$this->subtitle = $config['cops_subtitle_default'];
array_push ($this->entryArray, Author::getCount());
$series = Serie::getCount();
if (!is_null ($series)) array_push ($this->entryArray, $series);
$tags = Tag::getCount();
if (!is_null ($tags)) array_push ($this->entryArray, $tags);
$languages = Language::getCount();
if (!is_null ($languages)) array_push ($this->entryArray, $languages);
$this->entryArray = array_merge ($this->entryArray, Book::getCount());
}
public function isPaginated ()
{
global $config;
return (getCurrentOption ("max_item_per_page") != -1 &&
$this->totalNumber != -1 &&
$this->totalNumber > getCurrentOption ("max_item_per_page"));
}
public function getNextLink ()
{
global $config;
$currentUrl = $_SERVER['QUERY_STRING'];
$currentUrl = preg_replace ("/\&n=.*?$/", "", "?" . $_SERVER['QUERY_STRING']);
if (($this->n) * getCurrentOption ("max_item_per_page") < $this->totalNumber) {
return new LinkNavigation ($currentUrl . "&n=" . ($this->n + 1), "next", "Page suivante");
}
return NULL;
}
public function getPrevLink ()
{
global $config;
$currentUrl = $_SERVER['QUERY_STRING'];
$currentUrl = preg_replace ("/\&n=.*?$/", "", "?" . $_SERVER['QUERY_STRING']);
if ($this->n > 1) {
return new LinkNavigation ($currentUrl . "&n=" . ($this->n - 1), "previous", "Page precedente");
}
return NULL;
}
public function getMaxPage ()
{
global $config;
return ceil ($this->totalNumber / getCurrentOption ("max_item_per_page"));
}
public function containsBook ()
{
if (count ($this->entryArray) == 0) return false;
if (get_class ($this->entryArray [0]) == "EntryBook") return true;
return false;
}
}
class PageAllAuthorsLetter extends Page
{
public function InitializeContent ()
{
global $config;
$this->idPage = Author::getEntryIdByLetter ($this->idGet);
$this->entryArray = Author::getAuthorsByFirstLetter ($this->idGet);
if ($this->idGet) {
$this->title = localize("authors.starting").' '.$this->idGet;
} else {
$this->title = localize("authors.title");
}
}
}
class PageAuthorsLetter extends Page
{
public function InitializeContent ()
{
global $config;
$this->idPage = Author::getEntryIdByLetter ($this->idGet);
$this->entryArray = Author::getAuthorsByStartingLetter ($this->idGet);
$this->title = str_format (localize ("splitByLetter.letter"), str_format (localize ("authorword", count ($this->entryArray)), count ($this->entryArray)), $this->idGet);
}
}
class PageAuthorDetail extends Page
{
public function InitializeContent ()
{
$author = Author::getAuthorById ($this->idGet);
$this->idPage = $author->getEntryId ();
$this->title = $author->name;
list ($this->entryArray, $this->totalNumber) = Book::getBooksByAuthor ($this->idGet, $this->n);
}
}
class PageAllTags extends Page
{
public function InitializeContent ()
{
$this->title = localize("tags.title");
$array = Tag::getAllTags();
asort($array);
$this->entryArray = $array;
$this->idPage = Tag::ALL_TAGS_ID;
}
}
class PageAllLanguages extends Page
{
public function InitializeContent ()
{
$this->title = localize("languages.title");
$array = Language::getAllLanguages();
asort($array);
$this->entryArray = $array;
$this->idPage = Language::ALL_LANGUAGES_ID;
}
}
class PageTagDetail extends Page
{
public function InitializeContent ()
{
$tag = Tag::getTagById ($this->idGet);
$this->idPage = $tag->getEntryId ();
$this->title = $tag->name;
list ($this->entryArray, $this->totalNumber) = Book::getBooksByTag ($this->idGet, $this->n);
}
}
class PageLanguageDetail extends Page
{
public function InitializeContent ()
{
$language = Language::getLanguageById ($this->idGet);
$this->idPage = $language->getEntryId ();
$this->title = $language->lang_code;
list ($this->entryArray, $this->totalNumber) = Book::getBooksByLanguage ($this->idGet, $this->n);
}
}
class PageAllSeries extends Page
{
public function InitializeContent ()
{
if ($this->idGet) {
$this->title = str_format (localize ("splitByLetter.letter"), str_format (localize ("series.title")), $this->idGet);
} else {
$this->title = localize("series.title");
}
$this->entryArray = Serie::getAllSeries($this->idGet);
$this->idPage = Serie::getEntryIdByLetters($this->idGet);
}
}
class PageAllSeriesStartingLetters extends Page
{
public function InitializeContent ()
{
$this->entryArray = Serie::getAllSeriesStartingLetters($this->idGet);
$this->title = str_format (localize ("splitByLetter.letter"), str_format (localize ("series.title")), $this->idGet);
$this->idPage = Serie::getEntryIdByLetters($this->idGet);
}
}
class PageSerieDetail extends Page
{
public function InitializeContent ()
{
$serie = Serie::getSerieById ($this->idGet);
$this->title = $serie->name;
list ($this->entryArray, $this->totalNumber) = Book::getBooksBySeries ($this->idGet, $this->n);
$this->idPage = $serie->getEntryId ();
}
}
class PageAllBooks extends Page
{
public function InitializeContent ()
{
$this->entryArray = Book::getAllBooks ($this->idGet);
if ($this->entryArray->count==1) {
$this->title = $this->idGet;
} elseif ($this->idGet) {
$this->title = str_format (localize ("splitByLetter.letter"), str_format (localize ("bookword.title")), $this->idGet);
} else {
$this->title = localize ("allbooks.title");
}
$this->idPage = Book::ALL_BOOKS_ID;
}
}
class PageAllBooksLetter extends Page
{
public function InitializeContent ()
{
list ($this->entryArray, $this->totalNumber) = Book::getBooksByStartingLetter ($this->idGet, $this->n);
$this->idPage = Book::getEntryIdByLetter ($this->idGet);
$count = $this->totalNumber;
if ($count == -1)
$count = count ($this->entryArray);
if ($count==1) {
$this->title = $this->idGet;
} else {
$this->title = str_format (localize ("splitByLetter.letter"), str_format (localize ("bookword", $count), $count), $this->idGet);
}
}
}
class PageRecentBooks extends Page
{
public function InitializeContent ()
{
$this->title = localize ("recent.title");
$this->entryArray = Book::getAllRecentBooks ();
$this->idPage = Book::ALL_RECENT_BOOKS_ID;
}
}
class PageQueryResult extends Page
{
public function InitializeContent ()
{
global $config;
$this->title = str_format (localize ("search.result"), $this->query);
$currentPage = getURLParam ("current", NULL);
switch ($currentPage) {
case Base::PAGE_AUTHORS_FIRST_LETTER :
$this->entryArray = Author::getAuthorsByStartingLetter ('%' . $this->query);
break;
default:
list ($this->entryArray, $this->totalNumber) = Book::getBooksByQuery ($this->query, $this->n);
}
}
}
class PageBookDetail extends Page
{
public function InitializeContent ()
{
$this->book = Book::getBookById ($this->idGet);
$this->title = $this->book->title;
}
}
class PageAbout extends Page
{
public function InitializeContent ()
{
$this->title = localize ("about.title");
}
}
class PageCustomize extends Page
{
public function InitializeContent ()
{
global $config;
$this->title = localize ("customize.title");
$this->entryArray = array ();
$use_fancybox = "";
if (getCurrentOption ("use_fancyapps") == 1) {
$use_fancybox = "checked='checked'";
}
$html_tag_filter = "";
if (getCurrentOption ("html_tag_filter") == 1) {
$html_tag_filter = "checked='checked'";
}
$content = "";
if (!preg_match("/(Kobo|Kindle\/3.0|EBRD1101)/", $_SERVER['HTTP_USER_AGENT'])) {
$content .= '<select id="style" onchange="updateCookie (this);">';
}
foreach (glob ("styles/style-*.css") as $filename) {
if (preg_match ('/styles\/style-(.*?)\.css/', $filename, $m)) {
$filename = $m [1];
}
$selected = "";
if (getCurrentOption ("style") == $filename) {
if (!preg_match("/(Kobo|Kindle\/3.0|EBRD1101)/", $_SERVER['HTTP_USER_AGENT'])) {
$selected = "selected='selected'";
} else {
$selected = "checked='checked'";
}
}
if (!preg_match("/(Kobo|Kindle\/3.0|EBRD1101)/", $_SERVER['HTTP_USER_AGENT'])) {
$content .= "<option value='{$filename}' {$selected}>{$filename}</option>";
} else {
$content .= "<input type='radio' onchange='updateCookieFromCheckbox (this);' id='style-{$filename}' name='style' value='{$filename}' {$selected} /><label for='style-{$filename}'> {$filename} </label>";
}
}
if (!preg_match("/(Kobo|Kindle\/3.0|EBRD1101)/", $_SERVER['HTTP_USER_AGENT'])) {
$content .= '</select>';
}
array_push ($this->entryArray, new Entry (localize ("customize.style"), "",
$content, "text",
array ()));
$content = '<input type="checkbox" onchange="updateCookieFromCheckbox (this);" id="use_fancyapps" ' . $use_fancybox . ' />';
array_push ($this->entryArray, new Entry (localize ("customize.fancybox"), "",
$content, "text",
array ()));
$content = '<input type="number" onchange="updateCookie (this);" id="max_item_per_page" value="' . getCurrentOption ("max_item_per_page") . '" min="-1" max="1200" pattern="^[-+]?[0-9]+$" />';
array_push ($this->entryArray, new Entry (localize ("customize.paging"), "",
$content, "text",
array ()));
$content = '<input type="number" onchange="updateCookie (this);" id="max_books_pages" value="' . getCurrentOption ("max_books_pages") . '" min="-1" max="50" pattern="^[-+]?[0-9]+$" />';
array_push ($this->entryArray, new Entry (localize ("customize.pages"), "",
$content, "text",
array ()));
$content = '<input type="text" onchange="updateCookie (this);" id="email" value="' . getCurrentOption ("email") . '" />';
array_push ($this->entryArray, new Entry (localize ("customize.email"), "",
$content, "text",
array ()));
$content = '<input type="checkbox" onchange="updateCookieFromCheckbox (this);" id="html_tag_filter" ' . $html_tag_filter . ' />';
array_push ($this->entryArray, new Entry (localize ("customize.filter"), "",
$content, "text",
array ()));
}
}
abstract class Base
{
const PAGE_INDEX = "index";
const PAGE_AUTHORS_FIRST_LETTER = "AUTH";
const PAGE_AUTHORS_STARTING_LETTERS = "AUTHST";
const PAGE_AUTHOR_DETAIL = "AUTHDET";
const PAGE_ALL_BOOKS = "BOOK";
const PAGE_ALL_BOOKS_LETTER = "BOOKST";
const PAGE_ALL_SERIES = "SER";
const PAGE_SERIES_STARTING_LETTERS = "SERST";
const PAGE_SERIE_DETAIL = "SERDET";
const PAGE_OPENSEARCH = "OPEN";
const PAGE_OPENSEARCH_QUERY = "OPENQ";
const PAGE_ALL_RECENT_BOOKS = "RECENT";
const PAGE_ALL_TAGS = "GENR";
const PAGE_TAG_DETAIL = "GENRDET";
const PAGE_BOOK_DETAIL = "BOOKDET";
const PAGE_ABOUT = "ABOUT";
const PAGE_ALL_LANGUAGES = "LANG";
const PAGE_LANGUAGE_DETAIL = "LANGDET";
const PAGE_CUSTOMIZE = "OPTS";
const COMPATIBILITY_XML_ALDIKO = "aldiko";
private static $db = NULL;
public static function getFileDirectory () {
global $config;
return $config['file_directory'];
}
public static function getDbHost () {
global $config;
return $config['db_host'];
}
public static function getDbUser () {
global $config;
return $config['db_user'];
}
public static function getDbPasswd () {
global $config;
return $config['db_passwd'];
}
public static function getDb () {
global $config;
if (is_null (self::$db)) {
try {
self::$db = new PDO('mysql:host='. self::getDbHost (), self::getDbUser(), self::getDbPasswd());
self::$db -> exec("set names utf8");
} catch (Exception $e) {
header("location: checkconfig.php?err=1");
exit();
}
}
return self::$db;
}
public static function clearDb () {
self::$db = NULL;
}
public static function executeQuery($query, $columns, $filter, $params, $n) {
global $config;
$totalResult = -1;
if (getCurrentOption ("max_item_per_page") != -1 && $n != -1)
{
// First check total number of results
$query_str = str_format ($query, "count(*)", $filter);
$result = self::getDb ()->prepare ($query_str);
$result->execute ($params);
$totalResult = $result->fetchColumn (0);
// Next modify the query and params
$query .= " limit ".(($n - 1) * getCurrentOption ("max_item_per_page")).", ".getCurrentOption ("max_item_per_page");
}
$query_str = str_format($query, $columns, $filter);
$result = self::getDb ()->prepare($query_str);
$result->execute ($params);
return array ($totalResult, $result);
}
public static function booksPages ()
{
global $config;
$result = getCurrentOption("max_books_pages");
if ($result=="") { $result = 10; }
return $result;
}
public static function maxItemsPerPage()
{
global $config;
$result = getCurrentOption("max_item_per_page");
if ($result=="") { $result = 25; }
return $result;
}
}