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-rw-r--r--include/dblayer/dblayers.inc.php32
-rw-r--r--include/dblayer/functions_pgsql.inc.php581
2 files changed, 613 insertions, 0 deletions
diff --git a/include/dblayer/dblayers.inc.php b/include/dblayer/dblayers.inc.php
new file mode 100644
index 000000000..235b02cf9
--- /dev/null
+++ b/include/dblayer/dblayers.inc.php
@@ -0,0 +1,32 @@
+<?php
+// +-----------------------------------------------------------------------+
+// | Piwigo - a PHP based picture gallery |
+// +-----------------------------------------------------------------------+
+// | Copyright(C) 2008-2009 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. |
+// +-----------------------------------------------------------------------+
+
+$dblayers = array();
+$dblayers['mysql'] = array('engine' => 'MySQL',
+ 'function_available' => 'mysql_connect'
+ );
+
+$dblayers['pgsql'] = array('engine' => 'PostgreSQL',
+ 'function_available' => 'pg_connect'
+ );
+?> \ No newline at end of file
diff --git a/include/dblayer/functions_pgsql.inc.php b/include/dblayer/functions_pgsql.inc.php
new file mode 100644
index 000000000..9e51aef04
--- /dev/null
+++ b/include/dblayer/functions_pgsql.inc.php
@@ -0,0 +1,581 @@
+<?php
+// +-----------------------------------------------------------------------+
+// | Piwigo - a PHP based picture gallery |
+// +-----------------------------------------------------------------------+
+// | Copyright(C) 2008-2009 Piwigo Team http://piwigo.org |
+// | Copyright(C) 2003-2008 PhpWebGallery Team http://phpwebgallery.net |
+// | Copyright(C) 2002-2003 Pierrick LE GALL http://le-gall.net/pierrick |
+// +-----------------------------------------------------------------------+
+// | This program is free software; you can redistribute it and/or modify |
+// | it under the terms of the GNU General Public License as published by |
+// | the Free Software Foundation |
+// | |
+// | This program is distributed in the hope that it will be useful, but |
+// | WITHOUT ANY WARRANTY; without even the implied warranty of |
+// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
+// | General Public License for more details. |
+// | |
+// | You should have received a copy of the GNU General Public License |
+// | along with this program; if not, write to the Free Software |
+// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
+// | USA. |
+// +-----------------------------------------------------------------------+
+
+define('REQUIRED_PGSQL_VERSION', '8.0');
+define('DB_ENGINE', 'PostgreSQL');
+
+define('DB_REGEX_OPERATOR', '~');
+define('DB_RANDOM_FUNCTION', 'RANDOM');
+
+/**
+ *
+ * simple functions
+ *
+ */
+
+function pwg_db_connect($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) or my_error('pg_connect', true);
+
+ return $link;
+}
+
+function pwg_db_check_charset()
+{
+ return true;
+}
+
+function pwg_get_db_version()
+{
+ list($pg_version) = pwg_db_fetch_row(pwg_query('SHOW SERVER_VERSION;'));
+
+ return $pg_version;
+}
+
+function pwg_query($query)
+{
+ global $conf,$page,$debug,$t2;
+
+ // Log::getInstance()->debug($query);
+
+ $start = get_moment();
+ ($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()
+{
+ // select currval('piwigo_user_id_seq');
+}
+
+/**
+ *
+ * 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;
+ // depending on the MySQL version, we use the multi table update or N update queries
+ if (count($datas) < 10)
+ { // MySQL is prior to version 4.0.4, multi table update feature is not available
+ foreach ($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
+ } // if mysql_ver or count<X
+ 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, $t', 'return "$s = IFNULL(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, $t', 'return "'.$tablename.'.$s = t2.$s";'),
+ $dbfields['primary']
+ )
+ );
+ pwg_query($query);
+ $query = '
+DROP TABLE '.$temporary_tablename;
+ 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);
+ }
+}
+
+/**
+ * Do maintenance on all PWG tables
+ *
+ * @return none
+ */
+function do_maintenance_all_tables()
+{
+ global $prefixeTable, $page;
+
+ $all_tables = array();
+
+ // List all tables
+ $query = 'SHOW TABLES LIKE \''.$prefixeTable.'%\'';
+ $result = pwg_query($query);
+ while ($row = pwg_db_fetch_assoc($result))
+ {
+ array_push($all_tables, $row[0]);
+ }
+
+ // Repair all tables
+ $query = 'REPAIR TABLE '.implode(', ', $all_tables);
+ $mysql_rc = pwg_query($query);
+
+ // Re-Order all tables
+ foreach ($all_tables as $table_name)
+ {
+ $all_primary_key = array();
+
+ $query = 'DESC '.$table_name.';';
+ $result = pwg_query($query);
+ while ($row = pwg_db_fetch_assoc($result))
+ {
+ if ($row['Key'] == 'PRI')
+ {
+ array_push($all_primary_key, $row['Field']);
+ }
+ }
+
+ if (count($all_primary_key) != 0)
+ {
+ $query = 'ALTER TABLE '.$table_name.' ORDER BY '.implode(', ', $all_primary_key).';';
+ $mysql_rc = $mysql_rc && pwg_query($query);
+ }
+ }
+
+ // Optimize all tables
+ $query = 'OPTIMIZE TABLE '.implode(', ', $all_tables);
+ $mysql_rc = $mysql_rc && pwg_query($query);
+ if ($mysql_rc)
+ {
+ array_push(
+ $page['infos'],
+ l10n('Optimizations completed')
+ );
+ }
+ else
+ {
+ array_push(
+ $page['errors'],
+ l10n('Optimizations errors')
+ );
+ }
+}
+
+function pwg_db_concat_ws($string, $separaor)
+{
+ return 'ARRAY_TO_STRING(ARRAY['.$string.'],\''.$separaor.'\')';
+}
+
+function pwg_db_cast_to_text($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'].'/', '', $table);
+ Log::getInstance()->debug($typname);
+ $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 (!empty($var) && ($var == 't'))
+ {
+ return 'true';
+ }
+ else
+ {
+ return 'false';
+ }
+}
+
+/**
+ *
+ * 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 $d;
+}
+
+function pwg_db_get_date_YYYYMM($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';
+}
+
+// my_error returns (or send to standard output) the message concerning the
+// error occured for the last mysql 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
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 19:21:06 +0000