debug($query);
$start = get_moment();
($result = pg_query($query)) or die($query."\n
".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 = '';
$output.= '['.$page['count_queries'].'] ';
$output.= "\n".$query;
$output.= "\n".'(this query time : ';
$output.= ''.number_format($time, 3, '.', ' ').' s)';
$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.= "\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= $packet_size)
{
pwg_query($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($error);
}
echo("");
trigger_error($error, E_USER_WARNING);
echo("");
}
?>