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languages_item.php
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Tue, Aug 19, 3:47 PM

languages_item.php
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<?php
/**
* @version $Id: languages_item.php 16600 2017-07-29 06:19:27Z alex $
* @package In-Portal
* @copyright Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
* @license GNU/GPL
* In-Portal is Open Source software.
* This means that this software may have been modified pursuant
* the GNU General Public License, and as distributed it includes
* or is derivative of works licensed under the GNU General Public License
* or other free or open source software licenses.
* See http://www.in-portal.org/license for copyright notices and details.
*/
defined('FULL_PATH') or die('restricted access!');
class LanguagesItem extends kDBItem
{
function generateID()
{
$sql = 'SELECT MAX(' . $this->IDField . ')
FROM ' . $this->getUnitConfig()->getTableName();
return $this->Conn->GetOne($sql) + 1;
}
/**
* Set's current language as new primary and return previous primary language
*
* @param bool $reset_primary
* @param bool $admin_language
* @return int
*/
function setPrimary($reset_primary = true, $admin_language = false)
{
$prev_primary = false;
$primary_field = $admin_language ? 'AdminInterfaceLang' : 'PrimaryLang';
if ($reset_primary) {
$sql = 'SELECT ' . $this->IDField . '
FROM ' . $this->TableName . '
WHERE ' . $primary_field . ' = 1';
$prev_primary = $this->Conn->GetOne($sql);
$sql = 'UPDATE '.$this->TableName.'
SET '.$primary_field.' = 0';
$this->Conn->Query($sql);
}
$sql = 'UPDATE '.$this->TableName.'
SET '.$primary_field.' = 1, Enabled = 1
WHERE '.$this->IDField.' = '.$this->GetID();
$this->Conn->Query($sql);
// in case, when Update method is called for this langauge object
$this->SetDBField($primary_field, 1);
$this->SetDBField('Enabled', 1);
// increment serial by hand, since no Update method is called
$this->Application->incrementCacheSerial($this->Prefix);
$this->Application->incrementCacheSerial($this->Prefix, $this->GetID());
return $prev_primary;
}
/**
* Copies missing data on current language from given language
*
* @param int $from_language
*/
function copyMissingData($from_language)
{
if ( !is_numeric($from_language) || ($from_language == $this->GetID()) ) {
// invalid or same language
return ;
}
/** @var kMultiLanguageHelper $ml_helper */
$ml_helper = $this->Application->recallObject('kMultiLanguageHelper');
$to_language = $this->GetID();
$this->Application->UnitConfigReader->ReReadConfigs();
foreach ($this->Application->UnitConfigReader->getPrefixes() as $prefix) {
$ml_helper->copyMissingData($prefix, $from_language, $to_language);
}
}
/**
* Allows to format number according to regional settings
*
* @param float $number
* @param int $precision
* @return float
*/
function formatNumber($number, $precision = null)
{
if (is_null($precision)) {
$precision = preg_match('/[\.,]+/', $number) ? strlen(preg_replace('/^.*[\.,]+/', '', $number)) : 0;
}
return number_format($number, $precision, (string)$this->GetDBField('DecimalPoint'), (string)$this->GetDBField('ThousandSep'));
}
/**
* Returns language id based on HTTP header "Accept-Language"
*
* @return int
*/
function processAcceptLanguage()
{
if (!array_key_exists('HTTP_ACCEPT_LANGUAGE', $_SERVER) || !$_SERVER['HTTP_ACCEPT_LANGUAGE']) {
return false;
}
$accepted_languages = Array ();
$language_string = explode(',', strtolower($_SERVER['HTTP_ACCEPT_LANGUAGE']));
foreach ($language_string as $mixed_language) {
if (strpos($mixed_language, ';') !== false) {
list ($language_locale, $language_quality) = explode(';', $mixed_language);
$language_quality = (float)substr($language_quality, 2); // format "q=4.45"
}
else {
$language_locale = $mixed_language;
$language_quality = 1.00;
}
$accepted_languages[ trim($language_locale) ] = trim($language_quality);
}
arsort($accepted_languages, SORT_NUMERIC);
foreach ($accepted_languages as $language_locale => $language_quality) {
$language_id = $this->getAvailableLanguage($language_locale);
if ($language_id) {
return $language_id;
}
}
return false;
}
/**
* Returns language ID based on given locale
*
* @param string $locale
* @return int
*/
function getAvailableLanguage($locale)
{
$cache_key = 'available_languages[%LangSerial%]';
$available_languages = $this->Application->getCache($cache_key);
if ($available_languages === false) {
$this->Conn->nextQueryCachable = true;
$sql = 'SELECT LanguageId, LOWER(Locale) AS Locale
FROM ' . TABLE_PREFIX . 'Languages
WHERE Enabled = 1';
$available_languages = $this->Conn->GetCol($sql, 'Locale');
$this->Application->setCache($cache_key, $available_languages);
}
if (strpos($locale, '-') !== false) {
// exact language match requested
$language_id = array_key_exists($locale, $available_languages) ? $available_languages[$locale] : false;
if ($language_id && $this->siteDomainLanguageEnabled($language_id)) {
return $language_id;
}
return false;
}
// partial (like "en" matches "en-GB" and "en-US") language match required
foreach ($available_languages as $language_code => $language_id) {
list ($language_code, ) = explode('-', $language_code);
if (($locale == $language_code) && $this->siteDomainLanguageEnabled($language_id)) {
return $language_id;
}
}
return false;
}
/**
* Loads item from the database by given id
*
* @access public
* @param mixed $id item id of keys->values hash to load item by
* @param string $id_field_name Optional parameter to load item by given Id field
* @param bool $cachable cache this query result based on it's prefix serial
* @return bool True if item has been loaded, false otherwise
* @throws kRedirectException
*/
public function Load($id, $id_field_name = null, $cachable = true)
{
if ( $cachable && $this->IsTempTable() ) {
$cachable = false;
}
$default = false;
if ($id == 'default') {
// domain based primary language
$default = true;
$id = $this->Application->siteDomainField('PrimaryLanguageId');
if ($id) {
$res = parent::Load($id, $id_field_name, $cachable);
}
else {
$res = parent::Load(1, 'PrimaryLang', $cachable);
}
if (
!$this->Application->isAdmin && !defined('GW_NOTIFY') && preg_match('/[\/]{0,1}index.php[\/]{0,1}/', $_SERVER['PHP_SELF']) &&
!$this->Application->HttpQuery->refererIsOurSite() && $this->Application->ConfigValue('UseContentLanguageNegotiation')
) {
$language_id = $this->processAcceptLanguage();
if ( $language_id != $this->GetID() ) {
// redirect to same page with found language
$url_params = Array (
'm_cat_id' => 0, 'm_cat_page' => 1,
'm_lang' => $language_id, 'm_opener' => 's',
'pass' => 'm'
);
$this->_addLoginState($url_params);
$exception = new kRedirectException('Redirect into language ID = <strong>' . $language_id . '</strong> according to "<strong>Accepted-Language</strong>" header "<strong>' . $_SERVER['HTTP_ACCEPT_LANGUAGE'] . '</strong>"');
$exception->setup('', $url_params);
throw $exception;
}
}
}
else {
$res = parent::Load($id, $id_field_name, $cachable);
}
if ($res) {
if (!$this->siteDomainLanguageEnabled($this->GetID())) {
// language isn't allowed in site domain
return $this->Clear();
}
}
if ($default) {
if (!$res) {
if ($this->Application->isAdmin) {
$res = parent::Load(1, $id_field_name, false);
}
else {
if (defined('IS_INSTALL')) {
// during first language import prevents sql errors
$this->setID(1);
$res = true;
}
else {
$this->Application->ApplicationDie('No Primary Language Selected');
}
}
}
$this->Application->SetVar('lang.current_id', $this->GetID() );
$this->Application->SetVar('m_lang', $this->GetID() );
}
return $res;
}
/**
* Pass login state variables into new language url
*
* @param $url_params
* @return void
* @access protected
*/
protected function _addLoginState(&$url_params)
{
$pass_along = Array ('login', 'logout');
foreach ($pass_along as $pass_along_name) {
$pass_along_value = $this->Application->GetVar($pass_along_name);
if ( $pass_along_value !== false ) {
$url_params[$pass_along_name] = $pass_along_value;
}
}
}
/**
* Checks, that language is enabled in site domain
*
* @param int $id
* @return bool
*/
function siteDomainLanguageEnabled($id)
{
$available_languages = $this->Application->siteDomainField('Languages');
if ($available_languages) {
return strpos($available_languages, '|' .$id . '|') !== false;
}
return true;
}
}

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