phrases_cache.php
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Created: Wed, Feb 26, 4:36 PM

phrases_cache.php
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	<?php

	class PhrasesCache extends kBase {

	/**
	* Connection to database
	*
	* @var kDBConnection
	* @access public
	*/
	var $Conn;

	var $Phrases = Array();
	var $Ids = Array();
	var $OriginalIds = Array(); //for comparing cache

	var $LanguageId = null;

	var $fromTag = false;

	function PhrasesCache()
	{
	parent::kBase();
	$this->Conn =& $this->Application->GetADODBConnection();
	}

	function Init($prefix, $special = '')
	{
	if (constOn('IS_INSTALL')) {
	$this->LanguageId = 1;
	}
	else {
	if ($this->Application->IsAdmin()) {
	$id_field = $this->Application->getUnitOption('lang', 'IDField');
	$table_name = $this->Application->getUnitOption('lang', 'TableName');
	$sql = 'SELECT '.$id_field.'
	FROM '.$table_name.'
	WHERE AdminInterfaceLang = 1';
	$this->LanguageId = $this->Conn->GetOne($sql);
	}
	else {
	$this->LanguageId = $this->Application->GetVar('m_lang');
	}
	}

	if (isset($this->Application->Caches['PhraseList'])) {
	$this->LoadPhrases( $this->Application->Caches['PhraseList'] );
	}
	}

	function GetCachedIds()
	{
	$query = sprintf("SELECT PhraseList, ConfigVariables FROM %s WHERE Template = %s",
	TABLE_PREFIX.'PhraseCache',
	$this->Conn->Qstr(md5($this->Application->GetVar('t').$this->Application->GetVar('m_theme').$this->Application->GetVar('m_lang'))));
	$res = $this->Conn->GetRow($query);

	if ($res && $res['ConfigVariables']) {
	$this->Application->OriginalConfigCacheIds = explode(',', $res['ConfigVariables']);
	$this->Application->ConfigCacheIds = $this->Application->OriginalConfigCacheIds;
	}

	return ($res === false) ? Array() : explode(',', $res['PhraseList']);
	}

	function LoadPhrases($ids)
	{
	if ( !is_array($ids) \|\| !implode('', $ids) ) return;
	$query = sprintf("SELECT Translation,UPPER(Phrase) AS Phrase FROM %s WHERE LanguageId = %s AND PhraseId IN (%s)",
	TABLE_PREFIX.'Phrase',
	$this->LanguageId,
	join(',', $ids));
	$this->Phrases = $this->Conn->GetCol($query,'Phrase');
	/*foreach($phrases as $phrase => $tanslation)
	{
	$this->AddCachedPhrase(mb_strtoupper($phrase), $tanslation);
	}*/
	$this->Ids = $ids;
	$this->OriginalIds = $ids;
	}

	function AddCachedPhrase($label, $value)
	{
	$label = mb_strtoupper($label);
	$this->Phrases[$label] = $value;
	}

	function NeedsCacheUpdate()
	{
	return is_array($this->Ids) && count($this->Ids) > 0 && $this->Ids != $this->OriginalIds;
	}

	/**
	* Copy from Application->UpdateCache method
	*
	* @deprecated
	*/
	function UpdateCache()
	{
	$update = false;
	//something changed
	$update = $update \|\| (is_array($this->Ids) && count($this->Ids) > 0 && $this->Ids != $this->OriginalIds);
	$update = $update \|\| (count($this->Application->ConfigCacheIds) && $this->Application->ConfigCacheIds != $this->Application->OriginalConfigCacheIds);
	if ($update) {
	$query = sprintf("REPLACE %s (PhraseList, CacheDate, Template, ConfigVariables)
	VALUES (%s, %s, %s, %s)",
	TABLE_PREFIX.'PhraseCache',
	$this->Conn->Qstr(join(',', $this->Ids)),
	adodb_mktime(),
	$this->Conn->Qstr(md5($this->Application->GetVar('t').$this->Application->GetVar('m_theme').$this->Application->GetVar('m_lang'))),
	$this->Conn->qstr(implode(',', array_unique($this->Application->ConfigCacheIds))));
	$this->Conn->Query($query);
	}
	}

	function GetPhrase($label)
	{
	if (!isset($this->LanguageId)) return 'impossible case';
	//actually possible when custom field contains references to language labels and its being rebuilt in OnAfterConfigRead
	//which is triggered by Sections rebuild, which in turn read all the configs and all of that happens BEFORE seeting the language...

	if (ereg("^!.+!$", $label) > 0)
	{
	$label = substr($label, 1, -1); //cut exclamation marks
	}

	if( strlen($label) == 0 ) return '';

	$original_label = $label;
	$label = mb_strtoupper($label);
	if(isset($this->Phrases[$label])) {
	$translated_label = $this->Phrases[$label];
	// debug mode is checked directly to improve performance
	if (defined('DEBUG_MODE') && DEBUG_MODE && constOn('DBG_PHRASES_HIGHLIGHT')) {
	if (!$this->Application->isDebugMode()) return $translated_label;

	if ($this->Application->IsAdmin()) {
	$sql = 'SELECT Module
	FROM '.TABLE_PREFIX.'Phrase
	WHERE (LanguageId = '.$this->LanguageId.') AND (Phrase = '.$this->Conn->qstr($label).')';
	$this->Application->Debugger->appendHTML('Phrase: <b>'.$label.'</b>; Module: <b>'.$this->Conn->GetOne($sql).'</b>');
	// $translated_label = $translated_label.' [m: '.$this->Conn->GetOne($sql).'; l: '.$label.']';
	}
	else {
	// highlight text created via translated phrase (used to detect if text on screen is phrase or not)
	$translated_label = '<span style="border: 1px solid #999999; background-color: #cccccc; color: #999999; ">'.$translated_label.'</span></a> <span style="color: red; background-color:#ffffcc">'.$original_label.'</span>';
	}

	}

	if (defined('DEBUG_MODE') && DEBUG_MODE &&
	(($this->Application->IsAdmin() && constOn('DBG_PHRASES_EDIT_ADMIN')) \|\| (!$this->Application->IsAdmin() && constOn('DBG_PHRASES_EDIT_FRONT')) ) ) {
	// option to change translation for Labels
	list($edit_tpl, $index_file) = $this->Application->IsAdmin() ? Array('regional/phrases_edit', 'index.php') : Array('phrases_edit', 'index.php');

	if ($this->Application->IsAdmin() && $this->Application->ConfigValue('UsePopups')) {
	// link to popup when using popups (only in admin)
	$edit_url = 'javascript:translate_phrase(\''.addslashes($translated_label).'\', \''.$edit_tpl.'\');';
	}
	else {
	// direct link, when not using popups OR on frontend
	$edit_url = $this->Application->HREF($edit_tpl,'',Array('m_opener'=>'d','phrases_label'=>$original_label,'phrases_event'=>'OnPrepareUpdate', 'pass'=>'all,phrases'), $index_file );
	}
	$translated_label = '<a href="'.$edit_url.'">!'.$translated_label.'!</a>';
	}

	return $translated_label;
	}

	$this->LoadPhraseByLabel($label, $original_label);
	return $this->GetPhrase($label);
	}

	function LoadPhraseByLabel($label, $original_label)
	{
	$query = sprintf("SELECT PhraseId, Translation FROM %s WHERE LanguageId = %s AND UPPER(Phrase) = UPPER(%s)",
	TABLE_PREFIX.'Phrase',
	$this->LanguageId,
	$this->Conn->qstr($label));
	$res = $this->Conn->GetRow($query);
	if ($res === false \|\| count($res) == 0)
	{
	$translation = '!'.$label.'!';
	if($this->Application->isDebugMode() && constOn('DBG_PHRASES')) {
	list($edit_tpl, $index_file) = $this->Application->IsAdmin() ? Array('regional/phrases_edit', 'index.php') : Array('phrases_edit', 'index.php');

	if ($this->Application->IsAdmin() && $this->Application->ConfigValue('UsePopups')) {
	// link to popup when using popups (only in admin)
	$edit_url = 'javascript:translate_phrase(\''.addslashes($original_label).'\', \''.$edit_tpl.'\');';
	}
	else {
	// direct link, when not using popups OR on frontend
	$edit_url = $this->Application->HREF($edit_tpl,'',Array('m_opener'=>'d','phrases_label'=>$original_label,'phrases_event'=>'OnNew', 'pass'=>'all,phrases'), $index_file );
	}

	$translation = '<a href="'.$edit_url.'">!'.$label.'!</a>';
	if($this->fromTag) $translation = $this->escapeTagReserved($translation);
	}
	$this->AddCachedPhrase($label, $translation); //add it as already cached, as long as we dont need to cache not found phrase
	return false;
	}

	$this->Phrases[$label] = $res['Translation'];
	array_push($this->Ids, $res['PhraseId']);
	$this->Ids = array_unique($this->Ids); //just to make sure
	return true;
	}

	/**
	* Sort params by name and then by length
	*
	* @param string $a
	* @param string $b
	* @return int
	* @access private
	*/
	function CmpParams($a, $b)
	{
	$a_len = mb_strlen($a);
	$b_len = mb_strlen($b);
	if ($a_len == $b_len) return 0;
	return $a_len > $b_len ? -1 : 1;
	}

	/**
	* Replace language tags in exclamation marks found in text
	*
	* @param string $text
	* @param bool $force_escape force escaping, not escaping of resulting string
	* @return string
	* @access public
	*/
	function ReplaceLanguageTags($text,$forse_escaping=null)
	{
	$this->fromTag = true;
	if( isset($forse_escaping) ) $this->fromTag = $forse_escaping;
	preg_match_all("(!(la\|lu)[^!]+!)", $text, $res, PREG_PATTERN_ORDER);
	$language_tags = $res[0];
	uasort($language_tags, Array(&$this, 'CmpParams') );

	$values = Array();
	$i = 0;
	foreach ($language_tags as $label) {
	array_push($values, $this->GetPhrase($label) );
	//array_push($values, $this->Application->Phrase($label) );
	$language_tags[$i] = '/' . $language_tags[$i] . '/';
	$i++;
	}
	$this->fromTag = false;
	return preg_replace($language_tags, $values, $text);
	}

	/**
	* Escape chars in phrase translation, that could harm parser to process tag
	*
	* @param string $text
	* @return string
	* @access private
	*/
	function escapeTagReserved($text)
	{
	$reserved = Array('"',"'"); // =
	$replacement = Array('\"',"\'"); // \=
	return str_replace($reserved,$replacement,$text);
	}

	}


	?>

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