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sf-static/sql/lib/db/pgsql.php

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initial commit
2023-02-28 18:21:07 +00:00
<?php
/**
* This file is a part of MyWebSQL package
* A very simple to use and easy to debug postgres wrapper class
*
* @file: lib/db/pgsql.php
* @author Samnan ur Rehman
* @copyright (c) 2008-2014 Samnan ur Rehman
* @web http://mywebsql.net
* @license http://mywebsql.net/license
*/
if (defined("CLASS_DB_PGSQL_INCLUDED"))
return true;
define("CLASS_DB_PGSQL_INCLUDED", "1");
/*
define("NOT_NULL_FLAG", 1); //* Field can't be NULL //* /
define("PRI_KEY_FLAG", 2); //* Field is part of a primary key //* /
define("UNIQUE_KEY_FLAG", 4); //* Field is part of a unique key //* /
define("MULTIPLE_KEY_FLAG", 8); //* Field is part of a key //* /
define("BLOB_FLAG", 16); //* Field is a blob //* /
define("UNSIGNED_FLAG", 32); //* Field is unsigned //* /
define("ZEROFILL_FLAG", 64); //* Field is zerofill //* /
define("BINARY_FLAG", 128); //* Field is binary //* /
define("ENUM_FLAG", 256); //* field is an enum //* /
define("AUTO_INCREMENT_FLAG", 512); //* field is a autoincrement field //* /
define("TIMESTAMP_FLAG", 1024); //* Field is a timestamp //* /
define("SET_FLAG", 2048); //* Field is a set //* /
*/
class DB_Pgsql {
var $ip, $user, $password, $db;
var $conn;
var $result;
var $errMsg;
var $escapeData;
var $lastQuery;
var $queryTime;
var $conn_str;
var $stack_last; // we need it for getting affected rows
var $includeStandardObjects;
function DB_Pgsql() {
$this->conn = null;
$this->errMsg = null;
$this->escapeData = true;
$this->result = array();
$this->includeStandardObjects = false;
}
function name() {
return 'pgsql';
}
function hasServer() {
return true;
}
function hasObject($type) {
switch($type) {
case 'table':
case 'view':
//case 'procedure':
case 'function':
case 'trigger':
case 'sequence':
case 'template':
case 'schema':
return true;
break;
case 'event':
//if ( ((float)Session::get('db', 'version_full')) >= 5.1 )
// return true;
break;
}
return false;
}
function getObjectTypes() {
$types = array(
'schemas', 'tables', 'views', 'functions', 'triggers'
);
if ($this->hasObject('event'))
$types[] = 'events';
return $types;
}
function getObjectList( $details = false ) {
$data = array(
'schemas' => $this->getSchemas(),
'tables' => $this->getTables( $details ),
'views' => $this->getViews(),
'functions' => $this->getFunctions(),
'triggers' => $this->getTriggers(),
);
if ($this->hasObject('event'))
$data['events'] = $this->getEvents();
return $data;
}
function getBackQuotes() {
return '"';
}
function getQuotes() {
return "'";
}
function getStandardDbList() {
return array( 'postgres', 'test' );
}
function setAuthOptions($options) {
}
function connect($ip, $user, $password, $db="") {
if (!function_exists('pg_connect')) {
return $this->error(str_replace('{{NAME}}', 'PGSQL', __('{{NAME}} client library is not installed')));
}
$this->conn_str = $this->build_conn_string($ip, $user, $password, $db);
$this->conn = @pg_connect($this->conn_str);
if (!$this->conn)
return $this->error(__('Database connection failed to the server'));
$this->ip = $ip;
$this->user = $user;
$this->password = $password;
$this->db = $db;
$this->selectVersion();
$this->query("SET CLIENT_ENCODING to 'utf8'");
$this->query("SET NAMES 'utf8'");
return true;
}
function disconnect() {
@pg_close($this->conn);
$this->conn = false;
return true;
}
function getCurrentUser() {
if ($this->query('select user')) {
$row = $this->fetchRow();
return $row[0];
}
return '';
}
function selectDb($db) {
$this->db = $db;
//$this->conn_str = $this->build_conn_string($this->ip, $user, $password, $db);
@pg_connect("dbname=" . pg_escape_string($db) );
}
function createDatabase( $name ) {
$sql = "create database \"".$this->escape($name)."\"";
return $this->query($sql);
}
function query($sql, $stack=0) { // call with query($sql, 1) to store multiple results
if (!$this->conn) {
log_message("DB: Connection has been closed");
return false;
}
if (v($this->result[$stack]))
@pg_free_result($this->result[$stack]);
$this->result[$stack] = "";
$this->stack_last = $stack;
$this->lastQuery = $sql;
$this->queryTime = $this->getMicroTime();
$this->result[$stack] = @pg_query($this->conn, $sql);
$this->queryTime = $this->getMicroTime() - $this->queryTime;
if ($this->result[$stack] === FALSE) {
$this->errMsg = pg_errormessage($this->conn);
log_message("DB: $sql ::: ".@pg_errormessage($this->conn));
return false;
}
return true;
}
function getWarnings() {
$ret = array();
/*$res = pg_query($this->conn, "SHOW WARNINGS");
if ($res !== FALSE) {
while($row = pg_fetch_array($res))
$ret[$row['Code']] = $row['Message'];
}*/
$ret[] = pg_errormessage($this->conn);
return $ret;
}
function getQueryTime($time=false) { // returns formatted given value or internal query time
return sprintf("%.2f", ($time ? $time : $this->queryTime) * 1000) . " ms";
}
function hasAffectedRows() {
return ($this->getAffectedRows() > 0);
}
function insert($table, $values) {
if (!is_array($values))
return false;
$sql = "insert into $table (";
foreach($values as $field=>$value)
$sql .= " $field,";
$sql = substr($sql, 0, strlen($sql) - 1);
$sql .= ") values (";
foreach($values as $field=>$value) {
if ($this->escapeData)
$sql .= "'" . $this->escape($value) . "',";
else
$sql .= "'$value',";
}
$sql = substr($sql, 0, strlen($sql) - 1);
$sql .= ")";
$this->query($sql);
}
function update($table, $values, $condition="") {
if (!is_array($values))
return false;
$sql = "update $table set ";
foreach($values as $field=>$value) {
if ($this->escapeData)
$sql .= "$field = '" . $this->escape($field) . "',";
else
$sql .= "$field = '$value',";
}
$sql = substr($sql, 0, strlen($sql) - 1);
if ($condition != "")
$sql .= "$condition";
$this->query($sql);
}
function getInsertID() {
return pg_getlastoid($this->result[$this->stack_last]);
}
function getResult($stack=0) {
return $this->result[$stack];
}
function hasResult($stack=0) {
return (@pg_result_status($this->result[$stack]) == PGSQL_TUPLES_OK);
//( is_resource($this->result[$stack]) && get_resource_type($this->result[$stack]) === 'pgsql result' )
}
function fetchRow($stack=0, $type="") {
if($type == "")
$type = PGSQL_BOTH;
else if ($type == "num")
$type = PGSQL_NUM;
else if ($type == "assoc")
$type = PGSQL_ASSOC;
if (!$this->result[$stack]) {
log_message("DB: called fetchRow[$stack] but result is false");
return NULL;
}
return @pg_fetch_array($this->result[$stack], NULL, $type);
}
function fetchSpecificRow($num, $type="", $stack=0) {
if($type == "")
$type = PGSQL_BOTH;
else if ($type == "num")
$type = PGSQL_NUM;
else if ($type == "assoc")
$type = PGSQL_ASSOC;
if (!$this->result[$stack]) {
log_message("DB: called fetchSpecificRow[$stack] but result is false");
return NULL;
}
return @pg_fetch_array($this->result[$stack], $num, $type);
}
function numRows($stack=0) {
return pg_numrows($this->result[$stack]);
}
function error($str) {
log_message("DB: " . $str);
$this->errMsg = $str;
return false;
}
function getError() {
return $this->errMsg;
}
function escape($str) {
return pg_escape_string($this->conn, $str);
}
function quote($str) {
if(strpos($str, '.') === false)
return '"' . $str . '"';
return '"' . str_replace('.', '"."', $str) . '"';
}
function setEscape($escape=true) {
$this->escapeData = $escape;
}
function getAffectedRows() {
return pg_affected_rows( $this->result[$this->stack_last] );
}
/**************************************/
function getDatabases() {
$res = pg_query($this->conn, "SELECT datname FROM pg_database WHERE NOT datistemplate ORDER BY datname");
$ret = array();
while($row = pg_fetch_array($res))
$ret[] = $row[0];
return $ret;
}
function getSchemas() {
if (!$this->db)
return array();
$extra = $this->includeStandardObjects ? "" : "WHERE nspname NOT LIKE 'pg@_%' ESCAPE '@' AND nspname != 'information_schema'";
$res = pg_query($this->conn, "SELECT pn.nspname, pu.rolname AS nspowner, pg_catalog.obj_description(pn.oid, 'pg_namespace') AS nspcomment FROM pg_catalog.pg_namespace pn LEFT JOIN pg_catalog.pg_roles pu ON (pn.nspowner = pu.oid) $extra ORDER BY nspname");
$ret = array();
while($row = pg_fetch_array($res))
$ret[] = $row[0];
return $ret;
}
function getTables( $details = false ) {
if (!$this->db)
return array();
$extra = $this->includeStandardObjects ? "" : "AND table_schema NOT LIKE 'pg@_%' ESCAPE '@' AND table_schema != 'information_schema'";
$res = pg_query($this->conn, "SELECT table_schema, table_name FROM information_schema.tables WHERE table_type = 'BASE TABLE' $extra ORDER BY table_name");
$ret = array();
while($row = pg_fetch_array($res)) {
$schema = $row[0];
if (!isset($ret[$schema]))
$ret[$schema] = array();
// @@TODO: add details for table for pgsql databases
$ret[$schema][] = $row[1];
}
return $ret;
}
function getViews() {
if (!$this->db)
return array();
$extra = $this->includeStandardObjects ? "" : "AND table_schema NOT LIKE 'pg@_%' ESCAPE '@' AND table_schema != 'information_schema'";
$res = pg_query($this->conn, "SELECT table_schema, table_name FROM information_schema.tables WHERE table_schema = current_schema() and table_type = 'VIEW' $extra ORDER BY table_name");
if (!$res)
return array();
$ret = array();
while($row = pg_fetch_array($res)) {
$schema = $row[0];
if (!isset($ret[$schema]))
$ret[$schema] = array();
$ret[$schema][] = $row[1];
}
return $ret;
}
function getFunctions() {
if (!$this->db)
return array();
$extra = $this->includeStandardObjects ? "" : "WHERE n.nspname NOT LIKE 'pg@_%' ESCAPE '@' AND n.nspname != 'information_schema'";
$res = pg_query($this->conn, "SELECT n.nspname, p.proname AS name FROM pg_proc p INNER JOIN pg_namespace n ON p.pronamespace = n.oid LEFT OUTER JOIN pg_roles u ON u.oid = p.proowner $extra ORDER BY p.proname, n.nspname");
if (!$res)
return array();
$ret = array();
while($row = pg_fetch_array($res)) {
$schema = $row[0];
if (!isset($ret[$schema]))
$ret[$schema] = array();
$ret[$schema][] = $row[1];
}
return $ret;
}
function getTriggers() {
if (!$this->db)
return array();
$extra = $this->includeStandardObjects ? "" : "AND n.nspname NOT LIKE 'pg@_%' ESCAPE '@' AND n.nspname != 'information_schema'";
$res = pg_query($this->conn, "SELECT n.nspname, tgname FROM pg_trigger t INNER JOIN pg_class c ON t.tgrelid = c.oid INNER JOIN pg_namespace n ON c.relnamespace = n.oid WHERE t.tgisinternal = 'f' $extra ORDER BY t.tgname");
if (!$res)
return array();
$ret = array();
while($row = pg_fetch_array($res)) {
$schema = $row[0];
if (!isset($ret[$schema]))
$ret[$schema] = array();
$ret[$schema][] = $row[1];
}
return $ret;
}
function getSequences() {
if (!$this->db)
return array();
$extra = $this->includeStandardObjects ? "" : "AND n.nspname NOT LIKE 'pg@_%' ESCAPE '@' AND n.nspname != 'information_schema'";
$res = pg_query($this->conn, "SELECT n.nspname, c.relname AS name, ds.description, n.nspname, d.refobjid as owntab, u.rolname AS usename FROM pg_class c LEFT OUTER JOIN pg_roles u ON u.oid = c.relowner INNER JOIN pg_namespace n ON c.relnamespace = n.oid LEFT OUTER JOIN pg_depend d on c.relkind = 'S' and d.classid = c.tableoid and d.objid = c.oid and d.objsubid = 0 and d.refclassid = c.tableoid and d.deptype = 'i' LEFT OUTER JOIN pg_description ds ON c.oid = ds.objoid WHERE c.relkind = 'S' $extra ORDER BY c.relname");
if (!$res)
return array();
$ret = array();
while($row = pg_fetch_array($res)) {
$schema = $row[0];
if (!isset($ret[$schema]))
$ret[$schema] = array();
$ret[$schema][] = $row[1];
}
return $ret;
}
/**************************************/
function getFieldInfo($stack=0) {
$fields = array();
$tables = array();
$num_fields = pg_num_fields($this->result[$stack]);
for($i=0; $i<$num_fields; $i++) {
$f = new StdClass;
$f->name = pg_field_name($this->result[$stack], $i);
$f->table = pg_field_table($this->result[$stack], $i);
$f->type = pg_field_type($this->result[$stack], $i);
$f->blob = 0;
$f->pkey = 0;
$f->ukey = 0;
$f->mkey = 0;
$f->numeric = substr($f->type, 0, 3) == 'int' ? 1 : 0;
if (!isset($tables[$f->table]))
$tables[$f->table] = array();
$tables[$f->table][] = "'".$f->name."'";
$fields[] = $f;
}
$this->getFieldMetaInfo($fields, $tables);
$this->getFieldConstraints($fields, $tables);
return $fields;
}
function getMicroTime() {
list($usec, $sec) = explode(" ",microtime());
return ((float)$usec + (float)$sec);
}
function selectVersion() {
$res = pg_query($this->conn, "select version()");
$row = pg_fetch_array($res);
preg_match('/([PostgreSQL]+)[\s]+([0-9.]+)[,\s]+(.*)/i', $row[0], $matches);
Session::set('db', 'version', intval($matches[2]));
Session::set('db', 'version_full', $matches[2]);
Session::set('db', 'version_comment', $matches[3]);
}
function getCreateCommand($type, $name) {
$func = 'getCreateCommandFor' . $type;
if (method_exists($this, $func))
return $this->$func( $name );
return '';
//return 'Create command is not available for the given object type';
}
function getDropCommand( $table ) {
return "drop table if exists " . $this->quote( $table );
}
function getTruncateCommand( $table ) {
return 'truncate table ' . $this->quote( $table );
}
function getFieldValues($table, $name) {
$sql = 'show full fields from "'.$table.'" where "Field" = \''.$this->escape($name).'\'';
$res = pg_query($this->conn, $sql);
if (pg_numrows($res) == 0)
return ( (object) array('list' => array()) );
$row = pg_fetch_array($res);
$type = $row['Type'];
preg_match('/enum\((.*)\)$/', $type, $matches);
if (!isset($matches[1]))
preg_match('/set\((.*)\)$/', $type, $matches);
if (isset($matches[1])) {
if (phpCheck(5.3)) {
$regex = "/\('(.*)'\)/";
preg_match_all($regex, $row['Type'], $list);
return array_map('replace_single_quotes', explode("','", $list[1][0]));
} else {
$list = explode(',', $matches[1]);
foreach($list as $k => $v)
$list[$k] = str_replace("\\'", "'", trim($v, " '"));
return $list;
}
}
return ( (object) array('list' => array()) );
}
function getEngines() {
$sql = 'show engines';
$res = pg_query($this->conn, $sql);
if (pg_numrows($res) == 0)
return ( array() );
$arr = array();
while($row = pg_fetch_array($res))
if ($row['Support'] != 'NO')
$arr[] = $row['Engine'];
return $arr;
}
function getCharsets() {
$sql = 'show character set';
$res = pg_query($this->conn, $sql);
if (pg_numrows($res) == 0)
return ( array() );
$arr = array();
while($row = pg_fetch_array($res))
$arr[] = $row['Charset'];
asort($arr);
return $arr;
}
function getCollations() {
$sql = 'show collation';
$res = pg_query($this->conn, $sql);
if (pg_numrows($res) == 0)
return ( array() );
$arr = array();
while($row = pg_fetch_array($res))
$arr[] = $row['Collation'];
asort($arr);
return $arr;
}
function getTableFields($table) {
$fields = array();
$tables = array();
$tables[$table] = array();
$this->getFieldMetaInfo($fields, $tables);
return $fields;
}
function getTableProperties($table) {
$sql = "show table status where \"Name\" like '".$this->escape($table)."'";
if (!$this->query($sql, "_tmp_query"))
return FALSE;
return $this->fetchRow("_tmp_query");
}
function queryTableStatus() {
$sql = "SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE table_type = 'BASE TABLE' ORDER BY table_name";
return $this->query($sql);
}
function getTableDescription( $table ) {
list($schema, $tbl) = strpos($table, '.') === FALSE ? array('', $table) : explode('.', $table);
$sql = "select * from INFORMATION_SCHEMA.COLUMNS where table_schema = '" . $this->escape( $schema ) . "' and table_name = '". $this->escape( $tbl ) . "' order by ordinal_position";
return $this->query($sql);
}
function flush($option = '', $skiplog=false) {
$options = array('HOSTS', 'PRIVILEGES', 'TABLES', 'STATUS', 'DES_KEY_FILE', 'QUERY CACHE', 'USER_RESOURCES', 'TABLES WITH READ LOCK');
if ($option == '') {
foreach($options as $option) {
$sql = "flush " . ( $skiplog ? "NO_WRITE_TO_BINLOG " : "") . $this->escape($option);
$this->query($sql, '_temp_flush');
}
$this->query('UNLOCK TABLES', '_temp_flush');
} else {
$sql = "flush " . ( $skiplog ? "NO_WRITE_TO_BINLOG " : "") . $this->escape($option);
$this->query($sql, '_temp_flush');
if ($option == 'TABLES WITH READ LOCK')
$this->query('UNLOCK TABLES', '_temp_flush');
}
return true;
}
function getLastQuery() {
return $this->lastQuery;
}
function getInsertStatement($tbl) {
$fields = array();
$tables = array();
$tables[$tbl] = array();
$this->getFieldMetaInfo($fields, $tables);
$str = "INSERT INTO ".$this->quote($tbl)." (";
$str2 = " VALUES (";
$num = count($fields);
for($i=0; $i<$num; $i++) {
$str .= ($i==0 ? "\"" : ",\"") . $fields[$i]->name . "\"";
if ($fields[$i]->autoinc) {
$str2 .= $i==0 ? 'NULL' : ',NULL';
}
else if ( $fields[$i]->numeric ) {
$str2 .= $i==0 ? "0" : ", 0";
}
else {
$str2 .= $i==0 ? "''" : ",''";
}
}
$str .= ")";
$str2 .= ")";
return $str.$str2;
}
function getUpdateStatement($tbl) {
$fields = array();
$tables = array();
$tables[$tbl] = array();
$this->getFieldMetaInfo($fields, $tables);
$this->getFieldConstraints($fields, $tables);
$pKey = ''; // if a primary key is available, this helps avoid multikey attributes in where clause
$str2 = "";
$str = "UPDATE ".$this->quote($tbl)." SET ";
$num = count($fields);
for($i=0; $i<$num; $i++) {
$str .= ($i==0 ? "\"" : ", \"") . $fields[$i]->name . "\"=''";
if ($fields[$i]->pkey)
$pKey = $fields[$i]->name;
if ($str2 != "")
$str2 .= " AND ";
$str2 .= "\"".$fields[$i]->name."\"=''";
}
// if we found a primary key, then use it only for where clause and discard other keys
if ($pKey != '')
$str2 = "\"$pKey\"=''";
if ($str2 != "")
$str2 = " WHERE " . $str2;
return $str . $str2;
}
function truncateTable($tbl) {
return $this->query('truncate table '.$this->quote($tbl));
}
function renameObject($name, $type, $new_name) {
$result = false;
list($schema, $new_name) = $this->splitObjectName( $new_name );
if($type == 'table') {
$query = 'alter '.$this->escape($type).' ' . $this->quote($name) . ' rename to '.$this->quote($new_name);
$result = $this->query($query);
}
else {
$func = 'rename' . $type;
if (method_exists($this, $func))
return $this->$func( $name );
}
return $result;
}
function dropObject($name, $type) {
$result = false;
$query = 'drop '.$this->escape($type).' '.$this->quote($name);
$result = $this->query($query);
return $result;
}
function copyObject($name, $type, $new_name) {
$result = false;
if($type == 'table') {
$query = 'create '.$this->escape($type). ' ' . $this->quote($new_name) . ' (like ' . $this->quote($name) . ")";
$result = $this->query($query);
if ($result) {
$query = 'insert into ' . $this->quote($new_name) . ' select * from ' . $this->quote($name);
$result = $this->query($query);
}
}
else {
$command = $this->getCreateCommand($type, $name);
$search = '/(create.*'.$type. ' )('.$name.'|\"'.$name.'\")/i';
$replace = '${1} "'.$new_name.'"';
$query = preg_replace($search, $replace, $command, 1);
$result = $this->query($query);
}
return $result;
}
function getAutoIncField($table) {
$sql = "show full fields from \"".$this->escape($table)."\"";
if (!$this->query($sql, "_temp"))
return false;
$i = 0;
while($row = $this->fetchRow("_temp")) {
if (strpos($row["Extra"], "auto_increment") !== false) {
return $i;
}
$i++;
}
return -1;
}
function queryVariables() {
return $this->query("SHOW ALL");
}
function getLimit($count, $offset = 0) {
return " limit $count offset $offset";
}
function addExportHeader( $name, $obj = 'db', $type='insert' ) {
$str = '';
switch($type) {
case 'insert':
if ( $obj == 'db' ) {
$str = "-- Database export results for db ".$name."\n";
$str .= "\nSET statement_timeout = 0;\nSET client_encoding = 'UTF8';\nSET standard_conforming_strings = on;\nSET check_function_bodies = false;\nSET client_min_messages = warning;\nSET search_path = public, pg_catalog;\nSET default_tablespace = '';\nSET default_with_oids = false;\n";
$str .= "\n-- Export data\n\n";
} else if ( $obj == 'table' ) {
$str = "-- Table data export for table ".$name."\n";
$str .= "\nSET statement_timeout = 0;\nSET client_encoding = 'UTF8';\nSET standard_conforming_strings = on;\nSET check_function_bodies = false;\nSET client_min_messages = warning;\nSET search_path = public, pg_catalog;\nSET default_tablespace = '';\nSET default_with_oids = false;\n";
$str .= "\n-- Export data\n\n";
} else if ( $obj == 'query' ) {
$str = "-- Export results for query data\n";
$str .= "-- Query: \n-- ".str_replace("\n", "\n--", $name)."\n";
$str .= "\n-- Export data\n";
}
break;
}
return $str;
}
function addExportFooter( $type='insert' ) {
return "\n";
}
function set_constraint( $constraint, $value ) {
switch ($constraint) {
case 'fkey':
//$this->query('SET FOREIGN_KEY_CHECKS=' . ($value ? '1' : '0') );
break;
}
}
/***** private functions ******/
protected function splitObjectName( $obj ) {
return strpos($obj, '.') === FALSE ? array('', $obj) : explode('.', $obj);
}
// builds connection string for pgsql connect method from parameters
protected function build_conn_string($ip, $user, $password, $db) {
$host = $ip;
$port = '';
if (strpos($ip, ':') !== false) {
list($host, $port) = explode(':', $ip);
}
$str = "host=" . pg_escape_string($host) . " user=" . pg_escape_string($user);
$str .= " password=" . pg_escape_string($password);
if( !empty($port) )
$str .= " port=" . pg_escape_string($port);
if( empty($db) )
$db = 'template1';
$str .= " dbname=" . pg_escape_string($db);
return $str;
}
protected function getFieldMetaInfo(&$fields, $tables) {
$sql = "select table_name, column_name, is_nullable, column_default, data_type from information_schema.columns where ";
foreach($tables as $table => $keys) {
list($schema, $tbl) = strpos($table, '.') === FALSE ? array('', $table) : explode('.', $table);
$sql .= "(\"table_schema\"='".trim($schema, '"\' ')."' and \"table_name\"='".trim($tbl, '"\' ')."'";
if (count($keys) > 0)
$sql .= " and \"column_name\" in (".implode(',', $keys).")) OR ";
else
$sql .= ") OR ";
}
$sql = substr($sql, 0, -3) . ' order by ordinal_position';
$res = pg_query($this->conn, $sql);
if (!$res)
return;
while($row = pg_fetch_array($res)) {
$found = false;
for($i=0; $i<count($fields); $i++) {
if($fields[$i]->table == $row[0] && $fields[$i]->name == $row[1]) {
$fields[$i]->not_null = $row[2] == "YES" ? 0 : 1;
$fields[$i]->datatype = $row[4];
$fields[$i]->default = $row[3];
$found = true;
break;
}
}
if (!$found) {
// create new field info
$f= new StdClass;
$f->name = $row[1];
$f->table = $row[0];
$f->type = $row[4];
$f->blob = 0;
$f->pkey = 0;
$f->ukey = 0;
$f->mkey = 0;
$f->not_null = $row[2] == "YES" ? 0 : 1;
$f->datatype = $row[4];
$f->default = $row[3];
//$f->zerofill = ($meta->flags & ZEROFILL_FLAG) ? 1 : 0;
//$f->unsigned = ($meta->flags & UNSIGNED_FLAG) ? 1 : 0;
$f->autoinc = 0;
$f->numeric = substr($f->type, 0, 3) == 'int' ? 1 : 0;
/*if ($meta->flags & ENUM_FLAG)
$f->type = 'enum';
else if ($meta->flags & SET_FLAG)
$f->type = 'set';
else if ($meta->flags & BINARY_FLAG)
$f->type = 'binary';
else if ($meta->type < 10)
$f->type = 'numeric';
else
$f->type = 'char';
if ($f->type == 'enum' || $f->type == 'set')
$f->list = $this->getFieldValues($f->table, $f->name);
*/
$fields[] = $f;
}
}
}
protected function getFieldConstraints(&$fields, $tables) {
$sql = "select c.contype as type, ns1.nspname as schema, r1.relname as table, f1.attname as field
FROM
pg_catalog.pg_constraint AS c
JOIN pg_catalog.pg_class AS r1 ON (c.conrelid=r1.oid)
JOIN pg_catalog.pg_attribute AS f1 ON (f1.attrelid=r1.oid AND (f1.attnum=c.conkey[1]))
JOIN pg_catalog.pg_namespace AS ns1 ON r1.relnamespace=ns1.oid
LEFT JOIN (
pg_catalog.pg_class AS r2 JOIN pg_catalog.pg_namespace AS ns2 ON (r2.relnamespace=ns2.oid)
) ON (c.confrelid=r2.oid)
LEFT JOIN pg_catalog.pg_attribute AS f2 ON
(f2.attrelid=r2.oid AND ((c.confkey[1]=f2.attnum AND c.conkey[1]=f1.attnum)))
WHERE ";
foreach($tables as $table => $keys) {
list($schema, $tbl) = $this->splitObjectName( $table );
$schema = trim($schema, '"\' ');
if ($schema)
$sql .= "(ns1.nspname='".$schema."' and r1.relname='".trim($tbl, '"\' ')."') OR ";
else
$sql .= "(r1.relname='".trim($tbl, '"\' ')."') OR ";
}
$sql = substr($sql, 0, -3);
$res = pg_query($this->conn, $sql);
if (!$res)
return;
while($row = pg_fetch_array($res)) {
for($i=0; $i<count($fields); $i++) {
if($fields[$i]->table == $row[2] && $fields[$i]->name == $row[3]) {
$fields[$i]->pkey = $row[0] == "p" ? 1 : 0;
$fields[$i]->ukey = $row[0] == "u" ? 1 : 0;
break;
}
}
}
}
protected function getCreateCommandForView( $name )
{
list($schema, $name) = $this->splitObjectName( $name );
$sql = "SELECT c.relname, n.nspname, pg_catalog.pg_get_userbyid(c.relowner) AS relowner,
pg_catalog.pg_get_viewdef(c.oid, true) AS createcmd,
pg_catalog.obj_description(c.oid, 'pg_class') AS comments
FROM pg_catalog.pg_class c
LEFT JOIN pg_catalog.pg_namespace n ON (n.oid = c.relnamespace)
WHERE (c.relname = '" . $this->escape($name) . "') AND n.nspname='" . $this->escape( $schema ) . "'";
if (!$this->query($sql, '_temp') || $this->numRows('_temp') == 0)
return '';
$row = $this->fetchRow('_temp');
$cmd = 'CREATE VIEW ' . $this->quote( $row['nspname'] . '.' . $row['relname'] ) . " AS \n"
. $row['createcmd'];
if ($row['comments'] != '') {
$cmd = "BEGIN; \n" . $cmd . "\nCOMMENT ON VIEW " . $this->quote( $row['nspname'] . '.' . $row['relname'] ) . " IS '" . $this->escape($row['comments']) . "';\nEND;";
}
return $cmd;
}
}
?>
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