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<?php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
/**
* Contains the Translation2_Admin_Container_db class
*
* This storage driver can use all databases which are supported
* by the PEAR::DB abstraction layer to fetch data.
*
* PHP versions 4 and 5
*
* LICENSE: Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE FREEBSD PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @category Internationalization
* @package Translation2
* @author Lorenzo Alberton <l.alberton@quipo.it>
* @author Ian Eure <ieure@php.net>
* @copyright 2004-2007 Lorenzo Alberton, Ian Eure
* @license http://www.debian.org/misc/bsd.license BSD License (3 Clause)
* @version CVS: $Id: db.php 305985 2010-12-05 22:55:33Z clockwerx $
* @link http://pear.php.net/package/Translation2
*/
/**
* require Translation2_Container_db class
*/
require_once 'Translation2/Container/db.php';
/**
* Storage driver for storing/fetching data to/from a database
*
* This storage driver can use all databases which are supported
* by the PEAR::DB abstraction layer to store and fetch data.
*
* @category Internationalization
* @package Translation2
* @author Lorenzo Alberton <l.alberton@quipo.it>
* @author Ian Eure <ieure@php.net>
* @copyright 2004-2007 Lorenzo Alberton, Ian Eure
* @license http://www.debian.org/misc/bsd.license BSD License (3 Clause)
* @link http://pear.php.net/package/Translation2
*/
class Translation2_Admin_Container_db extends Translation2_Container_db
{
// {{{ class vars
// }}}
// {{{ addLang()
/**
* Creates a new table to store the strings in this language.
* If the table is shared with other langs, it is ALTERed to
* hold strings in this lang too.
*
* @param array $langData language data
* @param array $options options
*
* @return true|PEAR_Error
*/
function addLang($langData, $options = array())
{
$tables = $this->db->getListOf('tables');
if (PEAR::isError($tables)) {
return $tables;
}
$lang_col = $this->_getLangCol($langData['lang_id']);
if (in_array($langData['table_name'], $tables)) {
// table exists
$query = sprintf('ALTER TABLE %s ADD %s%s TEXT',
$this->db->quoteIdentifier($langData['table_name']),
$this->db->phptype == 'mssql' ? '' : 'COLUMN ',
$this->db->quoteIdentifier($lang_col)
);
++$this->_queries;
return $this->db->query($query);
}
//table does not exist
$queries = array();
$queries[] = sprintf('CREATE TABLE %s ( '
.'%s VARCHAR(%d) default NULL, '
.'%s TEXT NOT NULL, '
.'%s TEXT )',
$this->db->quoteIdentifier($langData['table_name']),
$this->db->quoteIdentifier($this->options['string_page_id_col']),
(int)$this->options['string_page_id_col_length'],
$this->db->quoteIdentifier($this->options['string_id_col']),
$this->db->quoteIdentifier($lang_col)
);
$mysqlClause = ($this->db->phptype == 'mysql') ? '(255)' : '';
$index_name = sprintf('%s_%s_%s_index',
$langData['table_name'],
$this->options['string_page_id_col'],
$this->options['string_id_col']
);
$queries[] = sprintf('CREATE UNIQUE INDEX %s ON %s (%s, %s%s)',
$this->db->quoteIdentifier($index_name),
$this->db->quoteIdentifier($langData['table_name']),
$this->db->quoteIdentifier($this->options['string_page_id_col']),
$this->db->quoteIdentifier($this->options['string_id_col']),
$mysqlClause
);
$index_name = sprintf('%s_%s_index',
$langData['table_name'],
$this->options['string_page_id_col']
);
$queries[] = sprintf('CREATE INDEX %s ON %s (%s)',
$this->db->quoteIdentifier($index_name),
$this->db->quoteIdentifier($langData['table_name']),
$this->db->quoteIdentifier($this->options['string_page_id_col'])
);
$index_name = sprintf('%s_%s_index',
$langData['table_name'],
$this->options['string_id_col']
);
$queries[] = sprintf('CREATE INDEX %s ON %s (%s%s)',
$this->db->quoteIdentifier($index_name),
$this->db->quoteIdentifier($langData['table_name']),
$this->db->quoteIdentifier($this->options['string_id_col']),
$mysqlClause
);
foreach ($queries as $query) {
++$this->_queries;
$res = $this->db->query($query);
if (PEAR::isError($res)) {
return $res;
}
}
return true;
}
// }}}
// {{{ addLangToList()
/**
* Creates a new entry in the langsAvail table.
* If the table doesn't exist yet, it is created.
*
* @param array $langData array('lang_id' => 'en',
* 'table_name' => 'i18n',
* 'name' => 'english',
* 'meta' => 'some meta info',
* 'error_text' => 'not available',
* 'encoding' => 'iso-8859-1');
*
* @return true|PEAR_Error
*/
function addLangToList($langData)
{
$tables = $this->db->getListOf('tables');
if (PEAR::isError($tables)) {
return $tables;
}
if (!in_array($this->options['langs_avail_table'], $tables)) {
$queries = array();
$queries[] = sprintf('CREATE TABLE %s ('
.'%s VARCHAR(16), '
.'%s VARCHAR(200), '
.'%s TEXT, '
.'%s VARCHAR(250), '
.'%s VARCHAR(16) )',
$this->db->quoteIdentifier($this->options['langs_avail_table']),
$this->db->quoteIdentifier($this->options['lang_id_col']),
$this->db->quoteIdentifier($this->options['lang_name_col']),
$this->db->quoteIdentifier($this->options['lang_meta_col']),
$this->db->quoteIdentifier($this->options['lang_errmsg_col']),
$this->db->quoteIdentifier($this->options['lang_encoding_col'])
);
$queries[] = sprintf('CREATE UNIQUE INDEX %s_%s_index ON %s (%s)',
$this->options['langs_avail_table'],
$this->options['lang_id_col'],
$this->db->quoteIdentifier($this->options['langs_avail_table']),
$this->db->quoteIdentifier($this->options['lang_id_col'])
);
foreach ($queries as $query) {
++$this->_queries;
$res = $this->db->query($query);
if (PEAR::isError($res)) {
return $res;
}
}
}
$query = sprintf('INSERT INTO %s (%s, %s, %s, %s, %s) VALUES (%s, %s, %s, %s, %s)',
$this->db->quoteIdentifier($this->options['langs_avail_table']),
$this->db->quoteIdentifier($this->options['lang_id_col']),
$this->db->quoteIdentifier($this->options['lang_name_col']),
$this->db->quoteIdentifier($this->options['lang_meta_col']),
$this->db->quoteIdentifier($this->options['lang_errmsg_col']),
$this->db->quoteIdentifier($this->options['lang_encoding_col']),
$this->db->quote($langData['lang_id']),
$this->db->quote($langData['name']),
$this->db->quote($langData['meta']),
$this->db->quote($langData['error_text']),
$this->db->quote($langData['encoding'])
);
++$this->_queries;
$success = $this->db->query($query);
$this->options['strings_tables'][$langData['lang_id']] = $langData['table_name'];
return $success;
}
// }}}
// {{{ removeLang()
/**
* Remove the lang from the langsAvail table and drop the strings table.
* If the strings table holds other langs and $force==false, then
* only the lang column is dropped. If $force==true the whole
* table is dropped without any check
*
* @param string $langID language ID
* @param boolean $force if true, the whole table is dropped without checks
*
* @return true|PEAR_Error
*/
function removeLang($langID, $force)
{
//remove from langsAvail
$query = sprintf('DELETE FROM %s WHERE %s = %s',
$this->db->quoteIdentifier($this->options['langs_avail_table']),
$this->db->quoteIdentifier($this->options['lang_id_col']),
$this->db->quote($langID)
);
++$this->_queries;
$res = $this->db->query($query);
if (PEAR::isError($res)) {
return $res;
}
$lang_table = $this->_getLangTable($langID);
if ($force) {
//remove the whole table
++$this->_queries;
return $this->db->query('DROP TABLE ' . $this->db->quoteIdentifier($lang_table));
}
//drop only the column for this lang
$query = sprintf('ALTER TABLE %s DROP COLUMN %s',
$lang_table,
$this->_getLangCol($langID)
);
++$this->_queries;
return $this->db->query($query);
}
// }}}
// {{{ updateLang()
/**
* Update the lang info in the langsAvail table
*
* @param array $langData language data
*
* @return true|PEAR_Error
*/
function updateLang($langData)
{
$allFields = array(
//'lang_id' => 'lang_id_col',
'name' => 'lang_name_col',
'meta' => 'lang_meta_col',
'error_text' => 'lang_errmsg_col',
'encoding' => 'lang_encoding_col',
);
$updateFields = array_keys($langData);
$langSet = array();
foreach ($allFields as $field => $col) {
if (in_array($field, $updateFields)) {
$langSet[] = $this->db->quoteIdentifier($this->options[$col]) . ' = ' .
$this->db->quote($langData[$field]);
}
}
$query = sprintf('UPDATE %s SET %s WHERE %s=%s',
$this->db->quoteIdentifier($this->options['langs_avail_table']),
implode(', ', $langSet),
$this->db->quoteIdentifier($this->options['lang_id_col']),
$this->db->quote($langData['lang_id'])
);
++$this->_queries;
$success = $this->db->query($query);
$this->fetchLangs(); //update memory cache
return $success;
}
// }}}
// {{{ add()
/**
* Add a new entry in the strings table.
*
* @param string $stringID string ID
* @param string $pageID page/group ID
* @param array $stringArray Associative array with string translations.
* Sample format: array('en' => 'sample', 'it' => 'esempio')
*
* @return true|PEAR_Error
*/
function add($stringID, $pageID, $stringArray)
{
$langs = array_intersect(
array_keys($stringArray),
$this->getLangs('ids')
);
if (!count($langs)) {
//return error: no valid lang provided
return true;
}
// Langs may be in different tables - we need to split up queries along
// table lines, so we can keep DB traffic to a minimum.
$unquoted_stringID = $stringID;
$unquoted_pageID = $pageID;
$stringID = $this->db->quote($stringID);
$pageID = is_null($pageID) ? 'NULL' : $this->db->quote($pageID);
// Loop over the tables we need to insert into.
foreach ($this->_tableLangs($langs) as $table => $tableLangs) {
$exists = $this->_recordExists($unquoted_stringID, $unquoted_pageID, $table);
if (PEAR::isError($exists)) {
return $exists;
}
$func = $exists ? '_getUpdateQuery' : '_getInsertQuery';
$query = $this->$func($table, $tableLangs, $stringID, $pageID, $stringArray);
++$this->_queries;
$res = $this->db->query($query);
if (PEAR::isError($res)) {
return $res;
}
}
return true;
}
// }}}
// {{{ update()
/**
* Update an existing entry in the strings table.
*
* @param string $stringID string ID
* @param string $pageID page/group ID
* @param array $stringArray Associative array with string translations.
* Sample format: array('en' => 'sample', 'it' => 'esempio')
*
* @return true|PEAR_Error
*/
function update($stringID, $pageID, $stringArray)
{
return $this->add($stringID, $pageID, $stringArray);
}
// }}}
// {{{ _getInsertQuery()
/**
* Build a SQL query to INSERT a record
*
* @param string $table table name
* @param array &$tableLangs tables containing the languages
* @param string $stringID string ID
* @param string $pageID page/group ID
* @param array &$stringArray array of strings
*
* @return string INSERT query
* @access private
*/
function _getInsertQuery($table, &$tableLangs, $stringID, $pageID, &$stringArray)
{
$tableCols = $this->_getLangCols($tableLangs);
$langData = array();
foreach ($tableLangs as $lang) {
$langData[$lang] = $this->db->quote($stringArray[$lang]);
}
foreach (array_keys($tableCols) as $k) {
$tableCols[$k] = $this->db->quoteIdentifier($tableCols[$k]);
}
return sprintf('INSERT INTO %s (%s, %s, %s) VALUES (%s, %s, %s)',
$this->db->quoteIdentifier($table),
$this->db->quoteIdentifier($this->options['string_id_col']),
$this->db->quoteIdentifier($this->options['string_page_id_col']),
implode(', ', $tableCols),
$stringID,
$pageID,
implode(', ', $langData)
);
}
// }}}
// {{{ _getUpdateQuery()
/**
* Build a SQL query to UPDATE a record
*
* @param string $table table name
* @param array &$tableLangs tables containing the languages
* @param string $stringID string ID
* @param string $pageID page/group ID
* @param array &$stringArray array of strings
*
* @return string UPDATE query
* @access private
*/
function _getUpdateQuery($table, &$tableLangs, $stringID, $pageID, &$stringArray)
{
$tableCols = $this->_getLangCols($tableLangs);
$langSet = array();
foreach ($tableLangs as $lang) {
$langSet[] = $this->db->quoteIdentifier($tableCols[$lang]) . ' = ' .
$this->db->quote($stringArray[$lang]);
}
return sprintf('UPDATE %s SET %s WHERE %s = %s AND %s = %s',
$this->db->quoteIdentifier($table),
implode(', ', $langSet),
$this->db->quoteIdentifier($this->options['string_id_col']),
$stringID,
$this->db->quoteIdentifier($this->options['string_page_id_col']),
$pageID
);
}
// }}}
// {{{ remove()
/**
* Remove an entry from the strings table.
*
* @param string $stringID string ID
* @param string $pageID page/group ID
*
* @return true|PEAR_Error
*/
function remove($stringID, $pageID)
{
$tables = array_unique($this->_getLangTables());
$stringID = $this->db->quote($stringID);
// get the tables and skip the non existent ones
$dbTables = $this->db->getListOf('tables');
foreach ($tables as $table) {
if (!in_array($table, $dbTables)) {
continue;
}
$query = sprintf('DELETE FROM %s WHERE %s = %s AND %s',
$this->db->quoteIdentifier($table),
$this->db->quoteIdentifier($this->options['string_id_col']),
$stringID,
$this->db->quoteIdentifier($this->options['string_page_id_col'])
);
if (is_null($pageID)) {
$query .= ' IS NULL';
} else {
$query .= ' = ' . $this->db->quote($pageID);
}
++$this->_queries;
$res = $this->db->query($query);
if (PEAR::isError($res)) {
return $res;
}
}
return true;
}
// }}}
// {{{ removePage
/**
* Remove all the strings in the given page/group
*
* @param string $pageID page/group ID
*
* @return mixed true on success, PEAR_Error on failure
*/
function removePage($pageID = null)
{
$tables = array_unique($this->_getLangTables());
// get the tables and skip the non existent ones
$dbTables = $this->db->getListOf('tables');
foreach ($tables as $table) {
if (!in_array($table, $dbTables)) {
continue;
}
$query = sprintf('DELETE FROM %s WHERE %s',
$this->db->quoteIdentifier($table, true),
$this->db->quoteIdentifier($this->options['string_page_id_col'])
);
if (is_null($pageID)) {
$query .= ' IS NULL';
} else {
$query .= ' = ' . $this->db->quote($pageID, 'text');
}
++$this->_queries;
$res = $this->db->query($query);
if (PEAR::isError($res)) {
return $res;
}
}
return true;
}
// }}}
// {{{ getPageNames()
/**
* Get a list of all the pageIDs in any table.
*
* @return array
*/
function getPageNames()
{
$pages = array();
foreach ($this->_getLangTables() as $table) {
$query = sprintf('SELECT DISTINCT %s FROM %s',
$this->db->quoteIdentifier($this->options['string_page_id_col']),
$this->db->quoteIdentifier($table)
);
++$this->_queries;
$res = $this->db->getCol($query);
if (PEAR::isError($res)) {
return $res;
}
$pages = array_merge($pages, $res);
}
return array_unique($pages);
}
// }}}
// {{{ _tableLangs()
/**
* Get table -> language mapping
*
* The key of the array is the table that a language is stored in;
* the value is an /array/ of languages stored in that table.
*
* @param array $langs Languages to get mapping for
*
* @return array Table -> language mapping
* @access private
* @see Translation2_Container_DB::_getLangTable()
*/
function &_tableLangs($langs)
{
$tables = array();
foreach ($langs as $lang) {
$table = $this->_getLangTable($lang);
$tables[$table][] = $lang;
}
return $tables;
}
// }}}
// {{{ _getLangTables()
/**
* Get tables for languages
*
* This is like _getLangTable(), but it returns an array of the tables for
* multiple languages.
*
* @param array $langs Languages to get tables for
*
* @return array
* @access private
*/
function &_getLangTables($langs = null)
{
$tables = array();
$langs = !is_array($langs) ? $this->getLangs('ids') : $langs;
foreach ($langs as $lang) {
$tables[] = $this->_getLangTable($lang);
}
$tables = array_unique($tables);
return $tables;
}
// }}}
// {{{ _getLangCols()
/**
* Get table columns strings are stored in
*
* This is like _getLangCol(), except it returns an array which contains
* the mapping for multiple languages.
*
* @param array $langs Languages to get mapping for
*
* @return array Language -> column mapping
* @access private
* @see Translation2_Container_DB::_getLangCol()
*/
function &_getLangCols($langs)
{
$cols = array();
foreach ($langs as $lang) {
$cols[$lang] = $this->_getLangCol($lang);
}
return $cols;
}
// }}}
// {{{ _recordExists()
/**
* Check if there's already a record in the table with the
* given (pageID, stringID) pair.
*
* @param string $stringID string ID
* @param string $pageID page/group ID
* @param string $table table name
*
* @return boolean
* @access private
*/
function _recordExists($stringID, $pageID, $table)
{
$stringID = $this->db->quote($stringID, 'text');
$pageID = is_null($pageID) ? ' IS NULL' : ' = ' . $this->db->quote($pageID);
$query = sprintf('SELECT COUNT(*) FROM %s WHERE %s=%s AND %s%s',
$this->db->quoteIdentifier($table),
$this->db->quoteIdentifier($this->options['string_id_col']),
$stringID,
$this->db->quoteIdentifier($this->options['string_page_id_col']),
$pageID
);
++$this->_queries;
$res = $this->db->getOne($query);
if (PEAR::isError($res)) {
return $res;
}
return ($res > 0);
}
// }}}
// {{{ _filterStringsByTable()
/**
* Get only the strings for the langs in the given table
*
* @param array $stringArray Associative array with string translations.
* Sample format: array('en' => 'sample', 'it' => 'esempio')
* @param string $table table name
*
* @return array
* @access private
*/
function &_filterStringsByTable($stringArray, $table)
{
$strings = array();
foreach ($stringArray as $lang => $string) {
if ($table == $this->_getLangTable($lang)) {
$strings[$lang] = $string;
}
}
return $strings;
}
// }}}
// {{{ _getLangsInTable()
/**
* Get the languages sharing the given table
*
* @param string $table table name
*
* @return array
*/
function &_getLangsInTable($table)
{
$this->fetchLangs(); // force cache refresh
$langsInTable = array();
foreach (array_keys($this->langs) as $lang) {
if ($table == $this->_getLangTable($lang)) {
$langsInTable[] = $lang;
}
}
return $langsInTable;
}
// }}}
}
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