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languages_event_handler.php
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Sat, Feb 1, 6:56 AM

languages_event_handler.php
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<?php
/**
* @version $Id: languages_event_handler.php 14339 2011-05-23 07:41:17Z 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 LanguagesEventHandler extends kDBEventHandler
{
/**
* Allows to override standart permission mapping
*
*/
function mapPermissions()
{
parent::mapPermissions();
$permissions = Array(
'OnChangeLanguage' => Array('self' => true),
'OnSetPrimary' => Array('self' => 'advanced:set_primary|add|edit'),
'OnImportLanguage' => Array('self' => 'advanced:import'),
'OnExportLanguage' => Array('self' => 'advanced:export'),
'OnExportProgress' => Array('self' => 'advanced:export'),
'OnReflectMultiLingualFields' => Array ('self' => 'view'),
'OnSynchronizeLanguages' => Array ('self' => 'edit'),
);
$this->permMapping = array_merge($this->permMapping, $permissions);
}
/**
* Permission check override
*
* @param kEvent $event
*/
function CheckPermission(&$event)
{
if ($event->Name == 'OnItemBuild') {
// check permission without using $event->getSection(),
// so first cache rebuild won't lead to "ldefault_Name" field being used
return true;
}
return parent::CheckPermission($event);
}
/**
* Allows to get primary language object
*
* @param kEvent $event
*/
function getPassedID(&$event)
{
if ($event->Special == 'primary') {
return $this->Application->GetDefaultLanguageId();
}
return parent::getPassedID($event);
}
/**
* [HOOK] Updates table structure on new language adding/removing language
*
* @param kEvent $event
*/
function OnReflectMultiLingualFields(&$event)
{
if ($this->Application->GetVar('ajax') == 'yes') {
$event->status = erSTOP;
}
if (is_object($event->MasterEvent)) {
if ($event->MasterEvent->status != erSUCCESS) {
// only rebuild when all fields are validated
return ;
}
if (($event->MasterEvent->Name == 'OnSave') && !$this->Application->GetVar('new_language')) {
// only rebuild during new language adding
return ;
}
}
$ml_helper =& $this->Application->recallObject('kMultiLanguageHelper');
/* @var $ml_helper kMultiLanguageHelper */
$this->Application->UnitConfigReader->ReReadConfigs();
foreach ($this->Application->UnitConfigReader->configData as $prefix => $config_data) {
$ml_helper->createFields($prefix);
}
}
/**
* Allows to set selected language as primary
*
* @param kEvent $event
*/
function OnSetPrimary(&$event)
{
if ($this->Application->CheckPermission('SYSTEM_ACCESS.READONLY', 1)) {
$event->status = erFAIL;
return;
}
$this->StoreSelectedIDs($event);
$ids = $this->getSelectedIDs($event);
if ($ids) {
$id = array_shift($ids);
$object =& $event->getObject( Array('skip_autoload' => true) );
/* @var $object LanguagesItem */
$object->Load($id);
$object->copyMissingData( $object->setPrimary() );
}
}
/**
* [HOOK] Reset primary status of other languages if we are saving primary language
*
* @param kEvent $event
*/
function OnUpdatePrimary(&$event)
{
if ($event->MasterEvent->status != erSUCCESS) {
return ;
}
$object =& $event->getObject( Array('skip_autoload' => true) );
/* @var $object LanguagesItem */
$object->SwitchToLive();
// set primary for each languages, that have this checkbox checked
$ids = explode(',', $event->MasterEvent->getEventParam('ids'));
foreach ($ids as $id) {
$object->Load($id);
if ($object->GetDBField('PrimaryLang')) {
$object->copyMissingData( $object->setPrimary(true, false) );
}
if ($object->GetDBField('AdminInterfaceLang')) {
$object->setPrimary(true, true);
}
}
// if no primary language left, then set primary last language (not to load again) from edited list
$sql = 'SELECT '.$object->IDField.'
FROM '.$object->TableName.'
WHERE PrimaryLang = 1';
$primary_language = $this->Conn->GetOne($sql);
if (!$primary_language) {
$object->setPrimary(false, false); // set primary language
}
$sql = 'SELECT '.$object->IDField.'
FROM '.$object->TableName.'
WHERE AdminInterfaceLang = 1';
$primary_language = $this->Conn->GetOne($sql);
if (!$primary_language) {
$object->setPrimary(false, true); // set admin interface language
}
}
/**
* Prefills options with dynamic values
*
* @param kEvent $event
*/
function OnAfterConfigRead(&$event)
{
parent::OnAfterConfigRead($event);
$fields = $this->Application->getUnitOption($event->Prefix, 'Fields');
// set dynamic hints for options in date format fields
$options = $fields['InputDateFormat']['options'];
if ($options) {
foreach ($options as $i => $v) {
$options[$i] = $v . ' (' . adodb_date($i) . ')';
}
$fields['InputDateFormat']['options'] = $options;
}
$options = $fields['InputTimeFormat']['options'];
if ($options) {
foreach ($options as $i => $v) {
$options[$i] = $v . ' (' . adodb_date($i) . ')';
}
$fields['InputTimeFormat']['options'] = $options;
}
$this->Application->setUnitOption($event->Prefix, 'Fields', $fields);
}
/**
* Occurse before updating item
*
* @param kEvent $event
* @access public
*/
function OnBeforeItemUpdate(&$event)
{
$object =& $event->getObject();
$status_fields = $this->Application->getUnitOption($event->Prefix, 'StatusField');
$status_field = array_shift($status_fields);
if ($object->GetDBField('PrimaryLang') == 1 && $object->GetDBField($status_field) == 0) {
$object->SetDBField($status_field, 1);
}
}
/**
* Shows only enabled languages on front
*
* @param kEvent $event
*/
function SetCustomQuery(&$event)
{
$object =& $event->getObject();
/* @var $object kDBList */
if (in_array($event->Special, Array ('enabled', 'selected', 'available'))) {
$object->addFilter('enabled_filter', '%1$s.Enabled = ' . STATUS_ACTIVE);
}
// site domain language picker
if ($event->Special == 'selected' || $event->Special == 'available') {
$edit_picker_helper =& $this->Application->recallObject('EditPickerHelper');
/* @var $edit_picker_helper EditPickerHelper */
$edit_picker_helper->applyFilter($event, 'Languages');
}
// apply domain-based language filtering
$languages = $this->Application->siteDomainField('Languages');
if (strlen($languages)) {
$languages = explode('|', substr($languages, 1, -1));
$object->addFilter('domain_filter', '%1$s.LanguageId IN (' . implode(',', $languages) . ')');
}
}
/**
* Copy labels from another language
*
* @param kEvent $event
*/
function OnAfterItemCreate(&$event)
{
parent::OnAfterItemCreate($event);
$object =& $event->getObject();
/* @var $object kDBItem */
$src_language = $object->GetDBField('CopyFromLanguage');
if ($object->GetDBField('CopyLabels') && $src_language) {
$dst_language = $object->GetID();
// 1. schedule data copy after OnSave event is executed
$var_name = $event->getPrefixSpecial() . '_copy_data' . $this->Application->GetVar('m_wid');
$pending_actions = $this->Application->RecallVar($var_name, Array ());
if ($pending_actions) {
$pending_actions = unserialize($pending_actions);
}
$pending_actions[$src_language] = $dst_language;
$this->Application->StoreVar($var_name, serialize($pending_actions));
$object->SetDBField('CopyLabels', 0);
}
}
/**
* Saves language from temp table to live
*
* @param kEvent $event
*/
function OnSave(&$event)
{
parent::OnSave($event);
if ($event->status != erSUCCESS) {
return ;
}
$var_name = $event->getPrefixSpecial() . '_copy_data' . $this->Application->GetVar('m_wid');
$pending_actions = $this->Application->RecallVar($var_name, Array ());
if ($pending_actions) {
$pending_actions = unserialize($pending_actions);
}
// create multilingual columns for phrases & email events table first (actual for 6+ language)
$ml_helper =& $this->Application->recallObject('kMultiLanguageHelper');
$ml_helper->createFields('phrases');
$ml_helper->createFields('emailevents');
foreach ($pending_actions as $src_language => $dst_language) {
// phrases import
$sql = 'UPDATE ' . $this->Application->getUnitOption('phrases', 'TableName') . '
SET l' . $dst_language . '_Translation = l' . $src_language . '_Translation';
$this->Conn->Query($sql);
// events import
$sql = 'UPDATE ' . $this->Application->getUnitOption('emailevents', 'TableName') . '
SET
l' . $dst_language . '_Subject = l' . $src_language . '_Subject,
l' . $dst_language . '_Body = l' . $src_language . '_Body';
$this->Conn->Query($sql);
}
$this->Application->RemoveVar($var_name);
$event->CallSubEvent('OnReflectMultiLingualFields');
$event->CallSubEvent('OnUpdatePrimary');
}
/**
* Prepare temp tables for creating new item
* but does not create it. Actual create is
* done in OnPreSaveCreated
*
* @param kEvent $event
*/
function OnPreCreate(&$event)
{
parent::OnPreCreate($event);
$object =& $event->getObject();
$object->SetDBField('CopyLabels', 1);
$live_table = $this->Application->getUnitOption($event->Prefix, 'TableName');
$primary_lang_id = $this->Conn->GetOne('SELECT '.$object->IDField.' FROM '.$live_table.' WHERE PrimaryLang = 1');
$object->SetDBField('CopyFromLanguage', $primary_lang_id);
}
/**
* Sets new language mark
*
* @param kEvent $event
*/
function OnBeforeDeleteFromLive(&$event)
{
$id_field = $this->Application->getUnitOption($event->Prefix, 'IDField');
$table_name = $this->Application->getUnitOption($event->Prefix, 'TableName');
$sql = 'SELECT ' . $id_field . '
FROM ' . $table_name . '
WHERE ' . $id_field . ' = ' . $event->getEventParam('id');
$id = $this->Conn->GetOne($sql);
if (!$id) {
$this->Application->SetVar('new_language', 1);
}
}
function OnChangeLanguage(&$event)
{
$language_id = $this->Application->GetVar('language');
if ($this->Application->isAdmin) {
// admin data only
$this->Application->SetVar('m_lang', $language_id);
// set new language for this session (admin interface only)
$this->Application->Session->SetField('Language', $language_id);
// remember last user language in administrative console
if ($this->Application->RecallVar('user_id') == USER_ROOT) {
$this->Application->StorePersistentVar('AdminLanguage', $language_id);
}
else {
$object =& $this->Application->recallObject('u.current');
/* @var $object kDBItem */
$object->SetDBField('AdminLanguage', $language_id);
$object->Update();
}
// without this language change in admin will cause erase of last remembered tree section
$this->Application->SetVar('skip_last_template', 1);
}
else {
// changing language on Front-End
$this->Application->SetVar('m_lang', $language_id);
if (MOD_REWRITE) {
$mod_rewrite_helper =& $this->Application->recallObject('ModRewriteHelper');
/* @var $mod_rewrite_helper kModRewriteHelper */
$mod_rewrite_helper->removePages();
}
}
}
/**
* Parse language XML file into temp tables and redirect to progress bar screen
*
* @param kEvent $event
*/
function OnImportLanguage(&$event)
{
if ($this->Application->CheckPermission('SYSTEM_ACCESS.READONLY', 1)) {
$event->status = erFAIL;
return;
}
$items_info = $this->Application->GetVar('phrases_import');
if ($items_info) {
list ($id, $field_values) = each($items_info);
$object =& $this->Application->recallObject('phrases.import', 'phrases', Array('skip_autoload' => true));
/* @var $object kDBItem */
$object->setID($id);
$object->SetFieldsFromHash($field_values);
if (!$object->Validate()) {
$event->status = erFAIL;
return ;
}
$filename = $object->GetField('LangFile', 'full_path');
if (!filesize($filename)) {
$object->SetError('LangFile', 'la_empty_file', 'la_EmptyFile');
$event->status = erFAIL;
}
$language_import_helper =& $this->Application->recallObject('LanguageImportHelper');
/* @var $language_import_helper LanguageImportHelper */
$language_import_helper->performImport(
$filename,
$object->GetDBField('PhraseType'),
$object->GetDBField('Module'),
$object->GetDBField('ImportOverwrite') ? LANG_OVERWRITE_EXISTING : LANG_SKIP_EXISTING
);
// delete uploaded language pack after import is finished
unlink($filename);
$event->SetRedirectParam('opener', 'u');
}
}
/**
* Stores ids of selected languages and redirects to export language step 1
*
* @param kEvent $event
*/
function OnExportLanguage(&$event)
{
if ($this->Application->CheckPermission('SYSTEM_ACCESS.READONLY', 1)) {
$event->status = erFAIL;
return;
}
$this->Application->setUnitOption('phrases','AutoLoad',false);
$this->StoreSelectedIDs($event);
$this->Application->StoreVar('export_language_ids', implode(',', $this->getSelectedIDs($event)) );
$event->setRedirectParams( Array('phrases.export_event' => 'OnNew', 'pass' => 'all,phrases.export') );
}
/**
* Saves selected languages to xml file passed
*
* @param kEvent $event
*/
function OnExportProgress(&$event)
{
$items_info = $this->Application->GetVar('phrases_export');
if ($items_info) {
list($id, $field_values) = each($items_info);
$object =& $this->Application->recallObject('phrases.export', null, Array('skip_autoload' => true));
/* @var $object kDBItem */
$object->setID($id);
$object->SetFieldsFromHash($field_values);
if (!$object->Validate()) {
$event->status = erFAIL;
return ;
}
$file_helper =& $this->Application->recallObject('FileHelper');
/* @var $file_helper FileHelper */
$file_helper->CheckFolder(EXPORT_PATH);
if (!is_writable(EXPORT_PATH)) {
$event->status = erFAIL;
$object->SetError('LangFile', 'write_error', 'la_ExportFolderNotWritable');
return ;
}
if ( substr($field_values['LangFile'], -5) != '.lang') {
$field_values['LangFile'] .= '.lang';
}
$filename = EXPORT_PATH . '/' . $field_values['LangFile'];
$language_import_helper =& $this->Application->recallObject('LanguageImportHelper');
/* @var $language_import_helper LanguageImportHelper */
if ($object->GetDBField('DoNotEncode')) {
$language_import_helper->setExportEncoding('plain');
}
$language_import_helper->setExportLimits($field_values['ExportPhrases'], $field_values['ExportEmailEvents']);
$lang_ids = explode(',', $this->Application->RecallVar('export_language_ids') );
$language_import_helper->performExport($filename, $field_values['PhraseType'], $lang_ids, $field_values['Module']);
}
$event->redirect = 'regional/languages_export_step2';
$event->SetRedirectParam('export_file', $field_values['LangFile']);
}
/**
* Returns to previous template in opener stack
*
* @param kEvent $event
*/
function OnGoBack(&$event)
{
$event->redirect_params['opener'] = 'u';
}
function OnScheduleTopFrameReload(&$event)
{
$this->Application->StoreVar('RefreshTopFrame',1);
}
/**
* Do now allow deleting current language
*
* @param kEvent $event
*/
function OnBeforeItemDelete(&$event)
{
$del_id = $event->getEventParam('id');
$object =& $event->getObject(array('skip_autload' => true));
$object->Load($del_id);
if ($object->GetDBField('PrimaryLang') || $object->GetDBField('AdminInterfaceLang') || $del_id == $this->Application->GetVar('m_lang')) {
$event->status = erFAIL;
}
}
/**
* Deletes phrases and email events on given language
*
* @param kEvent $event
*/
function OnAfterItemDelete(&$event)
{
parent::OnAfterItemDelete($event);
$object =& $event->getObject();
/* @var $object kDBItem */
// clean Events table
$fields_hash = Array (
'l' . $object->GetID() . '_Subject' => NULL,
'l' . $object->GetID() . '_Body' => NULL,
);
$this->Conn->doUpdate($fields_hash, $this->Application->getUnitOption('emailevents', 'TableName'), 1);
// clean Phrases table
$fields_hash = Array (
'l' . $object->GetID() . '_Translation' => NULL,
);
$this->Conn->doUpdate($fields_hash, $this->Application->getUnitOption('phrases', 'TableName'), 1);
}
/**
* Copy missing phrases across all system languages (starting from primary)
*
* @param kEvent $event
*/
function OnSynchronizeLanguages(&$event)
{
if ($this->Application->CheckPermission('SYSTEM_ACCESS.READONLY', 1)) {
$event->status = erFAIL;
return;
}
// get language list with primary language first
$sql = 'SELECT LanguageId
FROM ' . TABLE_PREFIX . 'Language
ORDER BY PrimaryLang DESC';
$source_langs = $this->Conn->GetCol($sql);
$target_langs = $source_langs;
foreach ($source_langs as $source_id) {
foreach ($target_langs as $target_id) {
if ($source_id == $target_id) {
continue;
}
$sql = 'UPDATE ' . TABLE_PREFIX . 'Phrase
SET l' . $target_id . '_Translation = l' . $source_id . '_Translation
WHERE (l' . $target_id . '_Translation IS NULL) OR (l' . $target_id . '_Translation = "")';
$this->Conn->Query($sql);
}
}
}
}

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