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authorplegall <plg@piwigo.org>2012-03-02 21:44:53 +0000
committerplegall <plg@piwigo.org>2012-03-02 21:44:53 +0000
commita7114b00c2199a4baa2635ddfad0ff2c29c2c4e7 (patch)
treeedf91db9a183dbb37792bc2db9de3a704f6ecdb6 /include/dblayer/functions_pgsql.inc.php
parent63c5934de22932e6a7209d6c87f5d08a694b03fc (diff)
remove files related to database engines other than MySQL
git-svn-id: http://piwigo.org/svn/trunk@13465 68402e56-0260-453c-a942-63ccdbb3a9ee
Diffstat (limited to 'include/dblayer/functions_pgsql.inc.php')
-rw-r--r--include/dblayer/functions_pgsql.inc.php796
1 files changed, 0 insertions, 796 deletions
diff --git a/include/dblayer/functions_pgsql.inc.php b/include/dblayer/functions_pgsql.inc.php
deleted file mode 100644
index ac560d6b2..000000000
--- a/include/dblayer/functions_pgsql.inc.php
+++ /dev/null
@@ -1,796 +0,0 @@
-<?php
-// +-----------------------------------------------------------------------+
-// | Piwigo - a PHP based photo gallery |
-// +-----------------------------------------------------------------------+
-// | Copyright(C) 2008-2012 Piwigo Team http://piwigo.org |
-// | Copyright(C) 2003-2008 PhpWebGallery Team http://phpwebgallery.net |
-// | Copyright(C) 2002-2003 Pierrick LE GALL http://le-gall.net/pierrick |
-// +-----------------------------------------------------------------------+
-// | This program is free software; you can redistribute it and/or modify |
-// | it under the terms of the GNU General Public License as published by |
-// | the Free Software Foundation |
-// | |
-// | This program is distributed in the hope that it will be useful, but |
-// | WITHOUT ANY WARRANTY; without even the implied warranty of |
-// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
-// | General Public License for more details. |
-// | |
-// | You should have received a copy of the GNU General Public License |
-// | along with this program; if not, write to the Free Software |
-// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
-// | USA. |
-// +-----------------------------------------------------------------------+
-
-define('REQUIRED_PGSQL_VERSION', '8.0');
-define('DB_ENGINE', 'PostgreSQL');
-
-define('DB_REGEX_OPERATOR', '~');
-define('DB_RANDOM_FUNCTION', 'RANDOM');
-
-/**
- *
- * simple functions
- *
- */
-
-function pwg_db_connect($host, $user, $password, $database)
-{
- $connection_string = '';
- if (strpos($host,':') !== false)
- {
- list($host, $port) = explode(':', $host);
- }
- $connection_string = sprintf('host=%s', $host);
- if (!empty($port))
- {
- $connection_string .= sprintf(' port=%d', $port);
- }
- $connection_string .= sprintf(' user=%s password=%s dbname=%s',
- $user,
- $password,
- $database);
- $link = @pg_connect($connection_string);
- if (!$link)
- {
- throw new Exception("Can't connect to server");
- }
- else
- {
- return $link;
- }
-}
-
-function pwg_db_check_version()
-{
- $current_version = pwg_get_db_version();
- if (version_compare($current_version, REQUIRED_PGSQL_VERSION, '<'))
- {
- fatal_error(
- sprintf(
- 'your database version is too old, you have "%s" and you need at least "%s"',
- $current_version,
- REQUIRED_PGSQL_VERSION
- )
- );
- }
-}
-
-function pwg_db_check_charset()
-{
- return true;
-}
-
-function pwg_get_db_version()
-{
- list($pg_version) = pwg_db_fetch_row(pwg_query('SHOW SERVER_VERSION;'));
-
- return $pg_version;
-}
-
-function pwg_query($query)
-{
- global $conf,$page,$debug,$t2;
-
- $replace_pattern = '`REPLACE INTO\s(\S*)\s*([^)]*\))\s*VALUES\(([^,]*),(.*)\)\s*`mi';
- $select_distinct_pattern = '/SELECT\s+DISTINCT\s*(\S[^;]*\S)\s*(FROM[^(;]+WHERE[^;]+)\s+ORDER\s+BY\s+([^;]*\S)\s*;?/i';
-
- $start = get_moment();
-
- if (preg_match($replace_pattern, $query, $matches)
- && $matches[1]==SESSIONS_TABLE)
- {
- $select_query = '
-SELECT id FROM '.$matches[1].'
- WHERE id='.$matches[3];
- ( $result = pg_query($select_query)) or die($query."\n<br>".pg_last_error());
- if (pwg_db_num_rows($result)==1)
- {
- $query = '
-UPDATE '.$matches[1].'
- SET expiration=now()
- WHERE id='.$matches[3];
- }
- else
- {
- $query = '
-INSERT INTO '.$matches[1].'
- '.$matches[2].' VALUES('.$matches[3].','.$matches[4].')';
- }
- ( $result = pg_query($query)) or die($query."\n<br>".pg_last_error());
- }
- elseif (preg_match($select_distinct_pattern, $query, $matches))
- {
- $select_fields_string='';
- $distinct_fields_string='';
- $orderby_fields_string='';
-
- foreach (preg_split( '/\s*,\s*/', $matches[1]) as $field)
- {
- $split_field = preg_split( '/\s*AS\s*/i', $field);
- if (isset($split_field[1]))
- {
- $distinct_fields[ $split_field[1] ] = $field;
- }
- else
- {
- $distinct_fields[ $field ] = $field;
- }
- }
-
- foreach (preg_split( '/\s*,\s*/', $matches[3]) as $field)
- {
- $kv = preg_split( '/\s+/', $field );
- $orderby_fields[ $kv[0] ] = $kv[1];
- }
-
- foreach ($distinct_fields as $as_field => $field)
- {
- if ($distinct_fields_string)
- {
- $distinct_fields_string=$distinct_fields_string.', ';
- }
-
- $distinct_fields_string=$distinct_fields_string.$as_field;
-
- if ($select_fields_string)
- {
- $select_fields_string=$select_fields_string.', ';
- }
-
- $select_fields_string=$select_fields_string.$field;
-
- if ($orderby_fields_string)
- {
- $orderby_fields_string=$orderby_fields_string.', ';
- }
-
- $orderby_fields_string=$orderby_fields_string.$as_field.' ';
-
- if (isset($orderby_fields[$as_field]))
- {
- $orderby_fields_string=$orderby_fields_string.$orderby_fields[$as_field];
- unset($orderby_fields[$as_field]);
- }
- else
- {
- $orderby_fields_string=$orderby_fields_string.'ASC';
- }
- }
-
- foreach ($orderby_fields as $field => $order)
- {
- $orderby_fields_string=$orderby_fields_string.', '.$field.' '.$order;
- }
-
- $query = '
-SELECT DISTINCT ON ('.$distinct_fields_string.') '.$select_fields_string.'
- '.$matches[2].'
- ORDER BY '.$orderby_fields_string;
- ($result = pg_query($query)) or die($query."\n<br>".pg_last_error());
- }
- else
- {
- ($result = pg_query($query)) or die($query."\n<br>".pg_last_error());
- }
-
- $time = get_moment() - $start;
-
- if (!isset($page['count_queries']))
- {
- $page['count_queries'] = 0;
- $page['queries_time'] = 0;
- }
-
- $page['count_queries']++;
- $page['queries_time']+= $time;
-
- if ($conf['show_queries'])
- {
- $output = '';
- $output.= '<pre>['.$page['count_queries'].'] ';
- $output.= "\n".$query;
- $output.= "\n".'(this query time : ';
- $output.= '<b>'.number_format($time, 3, '.', ' ').' s)</b>';
- $output.= "\n".'(total SQL time : ';
- $output.= number_format($page['queries_time'], 3, '.', ' ').' s)';
- $output.= "\n".'(total time : ';
- $output.= number_format( ($time+$start-$t2), 3, '.', ' ').' s)';
- if ( $result!=null and preg_match('/\s*SELECT\s+/i',$query) )
- {
- $output.= "\n".'(num rows : ';
- $output.= pwg_db_num_rows($result).' )';
- }
- elseif ( $result!=null
- and preg_match('/\s*INSERT|UPDATE|REPLACE|DELETE\s+/i',$query) )
- {
- $output.= "\n".'(affected rows : ';
- $output.= pwg_db_changes($result).' )';
- }
- $output.= "</pre>\n";
-
- $debug .= $output;
- }
-
- return $result;
-}
-
-function pwg_db_nextval($column, $table)
-{
- $query = '
-SELECT nextval(\''.$table.'_'.$column.'_seq\')';
- list($next) = pwg_db_fetch_row(pwg_query($query));
-
- return $next;
-}
-
-/**
- *
- * complex functions
- *
- */
-
-function pwg_db_changes($result)
-{
- return pg_affected_rows($result);
-}
-
-function pwg_db_num_rows($result)
-{
- return pg_num_rows($result);
-}
-
-function pwg_db_fetch_assoc($result)
-{
- return pg_fetch_assoc($result);
-}
-
-function pwg_db_fetch_row($result)
-{
- return pg_fetch_row($result);
-}
-
-function pwg_db_fetch_object($result)
-{
- return pg_fetch_object($result);
-}
-
-function pwg_db_free_result($result)
-{
- return pg_free_result($result);
-}
-
-function pwg_db_real_escape_string($s)
-{
- return pg_escape_string($s);
-}
-
-function pwg_db_insert_id($table=null, $column='id')
-{
- $sequence = sprintf('%s_%s_seq', strtolower($table), $column);
- $query = '
-SELECT CURRVAL(\''.$sequence.'\');';
-
- list($id) = pwg_db_fetch_row(pwg_query($query));
-
- return $id;
-}
-
-/**
- *
- * complex functions
- *
- */
-
-/**
- * creates an array based on a query, this function is a very common pattern
- * used here
- *
- * @param string $query
- * @param string $fieldname
- * @return array
- */
-function array_from_query($query, $fieldname)
-{
- $array = array();
-
- $result = pwg_query($query);
- while ($row = pg_fetch_assoc($result))
- {
- array_push($array, $row[$fieldname]);
- }
-
- return $array;
-}
-
-define('MASS_UPDATES_SKIP_EMPTY', 1);
-/**
- * updates multiple lines in a table
- *
- * @param string table_name
- * @param array dbfields
- * @param array datas
- * @param int flags - if MASS_UPDATES_SKIP_EMPTY - empty values do not overwrite existing ones
- * @return void
- */
-function mass_updates($tablename, $dbfields, $datas, $flags=0)
-{
- if (count($datas) == 0)
- return;
-
- if (count($datas) < 10)
- {
- foreach ($datas as $data)
- {
- $query = '
-UPDATE '.$tablename.'
- SET ';
- $is_first = true;
- foreach ($dbfields['update'] as $key)
- {
- $separator = $is_first ? '' : ",\n ";
-
- if (isset($data[$key]) and $data[$key] != '')
- {
- $query.= $separator.$key.' = \''.$data[$key].'\'';
- }
- else
- {
- if ( $flags & MASS_UPDATES_SKIP_EMPTY )
- continue; // next field
- $query.= "$separator$key = NULL";
- }
- $is_first = false;
- }
- if (!$is_first)
- {// only if one field at least updated
- $query.= '
- WHERE ';
- $is_first = true;
- foreach ($dbfields['primary'] as $key)
- {
- if (!$is_first)
- {
- $query.= ' AND ';
- }
- if ( isset($data[$key]) )
- {
- $query.= $key.' = \''.$data[$key].'\'';
- }
- else
- {
- $query.= $key.' IS NULL';
- }
- $is_first = false;
- }
- pwg_query($query);
- }
- } // foreach update
- }
- else
- {
- $all_fields = array_merge($dbfields['primary'], $dbfields['update']);
- $temporary_tablename = $tablename.'_'.micro_seconds();
- $query = '
-CREATE TABLE '.$temporary_tablename.'
- AS SELECT * FROM '.$tablename.' WHERE 1=2';
-
- pwg_query($query);
- mass_inserts($temporary_tablename, $all_fields, $datas);
- if ( $flags & MASS_UPDATES_SKIP_EMPTY )
- $func_set = create_function('$s', 'return "$s = NULLIF(t2.$s, '.$tablename.'.$s)";');
- else
- $func_set = create_function('$s', 'return "$s = t2.$s";');
-
- // update of images table by joining with temporary table
- $query = '
-UPDATE '.$tablename.'
- SET '.
- implode(
- "\n , ",
- array_map($func_set, $dbfields['update'])
- ).'
-FROM '.$temporary_tablename.' AS t2
- WHERE '.
- implode(
- "\n AND ",
- array_map(
- create_function('$s', 'return "'.$tablename.'.$s = t2.$s";'),
- $dbfields['primary']
- )
- );
- pwg_query($query);
- $query = '
-DROP TABLE '.$temporary_tablename;
- pwg_query($query);
- }
-}
-
-/**
- * updates one line in a table
- *
- * @param string table_name
- * @param array set_fields
- * @param array where_fields
- * @param int flags - if MASS_UPDATES_SKIP_EMPTY - empty values do not overwrite existing ones
- * @return void
- */
-function single_update($tablename, $set_fields, $where_fields, $flags=0)
-{
- if (count($set_fields) == 0)
- {
- return;
- }
-
- $query = '
-UPDATE '.$tablename.'
- SET ';
- $is_first = true;
- foreach ($set_fields as $key => $value)
- {
- $separator = $is_first ? '' : ",\n ";
-
- if (isset($value) and $value != '')
- {
- $query.= $separator.$key.' = \''.$value.'\'';
- }
- else
- {
- if ( $flags & MASS_UPDATES_SKIP_EMPTY )
- continue; // next field
- $query.= "$separator$key = NULL";
- }
- $is_first = false;
- }
- if (!$is_first)
- {// only if one field at least updated
- $query.= '
- WHERE ';
- $is_first = true;
- foreach ($where_fields as $key => $value)
- {
- if (!$is_first)
- {
- $query.= ' AND ';
- }
- if ( isset($value) )
- {
- $query.= $key.' = \''.$value.'\'';
- }
- else
- {
- $query.= $key.' IS NULL';
- }
- $is_first = false;
- }
- pwg_query($query);
- }
-}
-
-/**
- * inserts multiple lines in a table
- *
- * @param string table_name
- * @param array dbfields
- * @param array inserts
- * @return void
- */
-function mass_inserts($table_name, $dbfields, $datas)
-{
- if (count($datas) != 0)
- {
- $first = true;
-
- $packet_size = 16777216;
- $packet_size = $packet_size - 2000; // The last list of values MUST not exceed 2000 character*/
- $query = '';
-
- foreach ($datas as $insert)
- {
- if (strlen($query) >= $packet_size)
- {
- pwg_query($query);
- $first = true;
- }
-
- if ($first)
- {
- $query = '
-INSERT INTO '.$table_name.'
- ('.implode(',', $dbfields).')
- VALUES';
- $first = false;
- }
- else
- {
- $query .= '
- , ';
- }
-
- $query .= '(';
- foreach ($dbfields as $field_id => $dbfield)
- {
- if ($field_id > 0)
- {
- $query .= ',';
- }
-
- if (!isset($insert[$dbfield]) or $insert[$dbfield] === '')
- {
- $query .= 'NULL';
- }
- else
- {
- $query .= "'".$insert[$dbfield]."'";
- }
- }
- $query .= ')';
- }
- pwg_query($query);
- }
-}
-
-/**
- * inserts one line in a table
- *
- * @param string table_name
- * @param array dbfields
- * @param array insert
- * @return void
- */
-function single_insert($table_name, $data)
-{
- if (count($data) != 0)
- {
- $query = '
-INSERT INTO '.$table_name.'
- ('.implode(',', array_keys($data)).')
- VALUES';
-
- $query .= '(';
- $is_first = true;
- foreach ($data as $key => $value)
- {
- if (!$is_first)
- {
- $query .= ',';
- }
- else
- {
- $is_first = false;
- }
-
- if ($value === '')
- {
- $query .= 'NULL';
- }
- else
- {
- $query .= "'".$value."'";
- }
- }
- $query .= ')';
-
- pwg_query($query);
- }
-}
-
-/**
- * Do maintenance on all PWG tables
- *
- * @return none
- */
-function do_maintenance_all_tables()
-{
- global $prefixeTable, $page;
-
- $all_tables = array();
-
- // List all tables
- $query = 'SELECT tablename FROM pg_tables
-WHERE tablename like \''.$prefixeTable.'%\'';
-
- $all_tables = array_from_query($query, 'tablename');
-
- // Optimize all tables
- foreach ($all_tables as $table)
- {
- $query = 'VACUUM FULL '.$table;
- pwg_query($query);
- }
- array_push($page['infos'],
- l10n('All optimizations have been successfully completed.')
- );
-}
-
-function pwg_db_concat($array)
-{
- return implode($array, ' || ');
-}
-
-function pwg_db_concat_ws($array, $separator)
-{
- return implode($array, ' || \''.$separator.'\' || ');
-}
-
-function pwg_db_cast_to_text($string)
-{
- return 'CAST('.$string.' AS TEXT)';
-}
-
-/**
- * returns an array containing the possible values of an enum field
- *
- * @param string tablename
- * @param string fieldname
- */
-function get_enums($table, $field)
-{
- $typname = preg_replace('/'.$GLOBALS['prefixeTable'].'/', '', $table);
- $typname .= '_' . $field;
-
- $query = 'SELECT
-enumlabel FROM pg_enum JOIN pg_type
- ON pg_enum.enumtypid=pg_type.oid
- WHERE typname=\''.$typname.'\'
-';
- $result = pwg_query($query);
- while ($row = pwg_db_fetch_assoc($result))
- {
- $options[] = $row['enumlabel'];
- }
-
- return $options;
-}
-
-// get_boolean transforms a string to a boolean value. If the string is
-// "false" (case insensitive), then the boolean value false is returned. In
-// any other case, true is returned.
-function get_boolean( $string )
-{
- $boolean = true;
- if ('f' == $string || 'false' == $string)
- {
- $boolean = false;
- }
- return $boolean;
-}
-
-/**
- * returns boolean string 'true' or 'false' if the given var is boolean
- *
- * @param mixed $var
- * @return mixed
- */
-function boolean_to_string($var)
-{
- if (is_bool($var))
- {
- return $var ? 'true' : 'false';
- }
- elseif ($var=='t' || $var=='f')
- {
- return ($var=='t') ? 'true' : 'false';
- }
- else
- {
- return $var;
- }
-}
-
-/**
- *
- * interval and date functions
- *
- */
-
-function pwg_db_get_recent_period_expression($period, $date='CURRENT_DATE')
-{
- if ($date!='CURRENT_DATE')
- {
- $date = '\''.$date.'\'::date';
- }
-
- return '('.$date.' - \''.$period.' DAY\'::interval)::date';
-}
-
-function pwg_db_get_recent_period($period, $date='CURRENT_DATE')
-{
- $query = 'select '.pwg_db_get_recent_period_expression($period, $date);
- list($d) = pwg_db_fetch_row(pwg_query($query));
-
- return $d;
-}
-
-function pwg_db_get_flood_period_expression($seconds)
-{
- return 'now() - \''.$seconds.' SECOND\'::interval';
-}
-
-function pwg_db_get_hour($date)
-{
- return 'EXTRACT(HOUR FROM '.$date.')';
-}
-
-function pwg_db_get_date_YYYYMM($date)
-{
- return 'TO_CHAR('.$date.', \'YYYYMM\')';
-}
-
-function pwg_db_get_date_MMDD($date)
-{
- return 'TO_CHAR('.$date.', \'MMDD\')';
-}
-
-function pwg_db_get_year($date)
-{
- return 'EXTRACT(YEAR FROM '.$date.')';
-}
-
-function pwg_db_get_month($date)
-{
- return 'EXTRACT(MONTH FROM '.$date.')';
-}
-
-function pwg_db_get_week($date, $mode=null)
-{
- return 'EXTRACT(WEEK FROM '.$date.')';
-}
-
-function pwg_db_get_dayofmonth($date)
-{
- return 'EXTRACT(DAY FROM '.$date.')';
-}
-
-function pwg_db_get_dayofweek($date)
-{
- return 'EXTRACT(DOW FROM '.$date.')::INTEGER - 1';
-}
-
-function pwg_db_get_weekday($date)
-{
- return 'EXTRACT(ISODOW FROM '.$date.')::INTEGER - 1';
-}
-
-function pwg_db_date_to_ts($date)
-{
- return 'EXTRACT(EPOCH FROM '.$date.')';
-}
-
-// my_error returns (or send to standard output) the message concerning the
-// error occured for the last pgsql query.
-function my_error($header, $die)
-{
- $error = '[pgsql error]'.pg_last_error()."\n";
- $error .= $header;
-
- if ($die)
- {
- fatal_error($error);
- }
- echo("<pre>");
- trigger_error($error, E_USER_WARNING);
- echo("</pre>");
-}
-
-
-?> \ No newline at end of file