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✏️ Editing: adodb-active-recordx.inc.php

<?php
/**
 * Active Record implementation. Superset of Zend Framework's.
 *
 * This is "Active Record eXtended" to support JOIN, WORK and LAZY mode
 *
 * This file is part of ADOdb, a Database Abstraction Layer library for PHP.
 *
 * @package ADOdb
 * @link https://adodb.org Project's web site and documentation
 * @link https://github.com/ADOdb/ADOdb Source code and issue tracker
 *
 * The ADOdb Library is dual-licensed, released under both the BSD 3-Clause
 * and the GNU Lesser General Public Licence (LGPL) v2.1 or, at your option,
 * any later version. This means you can use it in proprietary products.
 * See the LICENSE.md file distributed with this source code for details.
 * @license BSD-3-Clause
 * @license LGPL-2.1-or-later
 *
 * @copyright 2000-2013 John Lim
 * @copyright 2014 Damien Regad, Mark Newnham and the ADOdb community
 */

// CFR: Active Records Definitions
define('ADODB_JOIN_AR', 0x01);
define('ADODB_WORK_AR', 0x02);
define('ADODB_LAZY_AR', 0x03);

global $_ADODB_ACTIVE_DBS;
global $ADODB_ACTIVE_CACHESECS; // set to true to enable caching of metadata such as field info
global $ACTIVE_RECORD_SAFETY; // set to false to disable safety checks
global $ADODB_ACTIVE_DEFVALS; // use default values of table definition when creating new active record.

// array of ADODB_Active_DB's, indexed by ADODB_Active_Record->_dbat
$_ADODB_ACTIVE_DBS = array();
$ACTIVE_RECORD_SAFETY = true; // CFR: disabled while playing with relations
$ADODB_ACTIVE_DEFVALS = false;

class ADODB_Active_DB {
	var $db; // ADOConnection
	var $tables; // assoc array of ADODB_Active_Table objects, indexed by tablename
}

class ADODB_Active_Table {
	var $name; // table name
	var $flds; // assoc array of adofieldobjs, indexed by fieldname
	var $keys; // assoc array of primary keys, indexed by fieldname
	var $_created; // only used when stored as a cached file
	var $_belongsTo = array();
	var $_hasMany = array();
	var $_colsCount; // total columns count, including relations

function updateColsCount()
	{
		$this->_colsCount = sizeof($this->flds);
		foreach($this->_belongsTo as $foreignTable)
			$this->_colsCount += sizeof($foreignTable->TableInfo()->flds);
		foreach($this->_hasMany as $foreignTable)
			$this->_colsCount += sizeof($foreignTable->TableInfo()->flds);
	}
}

// returns index into $_ADODB_ACTIVE_DBS
function ADODB_SetDatabaseAdapter(&$db)
{
	global $_ADODB_ACTIVE_DBS;

foreach($_ADODB_ACTIVE_DBS as $k => $d) {
		if ($d->db === $db) {
			return $k;
		}
	}

$obj = new ADODB_Active_DB();
	$obj->db = $db;
	$obj->tables = array();

$_ADODB_ACTIVE_DBS[] = $obj;

return sizeof($_ADODB_ACTIVE_DBS)-1;
}

class ADODB_Active_Record {
	static $_changeNames = true; // dynamically pluralize table names
	static $_foreignSuffix = '_id'; //
	var $_dbat; // associative index pointing to ADODB_Active_DB eg. $ADODB_Active_DBS[_dbat]
	var $_table; // tablename, if set in class definition then use it as table name
	var $_sTable; // singularized table name
	var $_pTable; // pluralized table name
	var $_tableat; // associative index pointing to ADODB_Active_Table, eg $ADODB_Active_DBS[_dbat]->tables[$this->_tableat]
	var $_where; // where clause set in Load()
	var $_saved = false; // indicates whether data is already inserted.
	var $_lasterr = false; // last error message
	var $_original = false; // the original values loaded or inserted, refreshed on update

var $foreignName; // CFR: class name when in a relationship

static function UseDefaultValues($bool=null)
	{
	global $ADODB_ACTIVE_DEFVALS;
		if (isset($bool)) {
			$ADODB_ACTIVE_DEFVALS = $bool;
		}
		return $ADODB_ACTIVE_DEFVALS;
	}

// should be static
	static function SetDatabaseAdapter(&$db)
	{
		return ADODB_SetDatabaseAdapter($db);
	}

public function __set($name, $value)
	{
		$name = str_replace(' ', '_', $name);
		$this->$name = $value;
	}

// php5 constructor
	// Note: if $table is defined, then we will use it as our table name
	// Otherwise we will use our classname...
	// In our database, table names are pluralized (because there can be
	// more than one row!)
	// Similarly, if $table is defined here, it has to be plural form.
	//
	// $options is an array that allows us to tweak the constructor's behaviour
	// if $options['refresh'] is true, we re-scan our metadata information
	// if $options['new'] is true, we forget all relations
	function __construct($table = false, $pkeyarr=false, $db=false, $options=array())
	{
	global $_ADODB_ACTIVE_DBS;

if ($db == false && is_object($pkeyarr)) {
			$db = $pkeyarr;
			$pkeyarr = false;
		}

if($table) {
			// table argument exists. It is expected to be
			// already plural form.
			$this->_pTable = $table;
			$this->_sTable = $this->_singularize($this->_pTable);
		}
		else {
			// We will use current classname as table name.
			// We need to pluralize it for the real table name.
			$this->_sTable = strtolower(get_class($this));
			$this->_pTable = $this->_pluralize($this->_sTable);
		}
		$this->_table = &$this->_pTable;

$this->foreignName = $this->_sTable; // CFR: default foreign name (singular)

if ($db) {
			$this->_dbat = ADODB_Active_Record::SetDatabaseAdapter($db);
		} else
			$this->_dbat = sizeof($_ADODB_ACTIVE_DBS)-1;

if ($this->_dbat < 0) {
			$this->Error(
				"No database connection set; use ADOdb_Active_Record::SetDatabaseAdapter(\$db)",
				'ADODB_Active_Record::__constructor'
			);
		}

$this->_tableat = $this->_table; # reserved for setting the assoc value to a non-table name, eg. the sql string in future

// CFR: Just added this option because UpdateActiveTable() can refresh its information
		// but there was no way to ask it to do that.
		$forceUpdate = (isset($options['refresh']) && true === $options['refresh']);
		$this->UpdateActiveTable($pkeyarr, $forceUpdate);
		if(isset($options['new']) && true === $options['new']) {
			$table =& $this->TableInfo();
			unset($table->_hasMany);
			unset($table->_belongsTo);
			$table->_hasMany = array();
			$table->_belongsTo = array();
		}
	}

function __wakeup()
	{
		$class = get_class($this);
		new $class;
	}

// CFR: Constants found in Rails
	static $IrregularP = array(
		'PERSON'    => 'people',
		'MAN'       => 'men',
		'WOMAN'     => 'women',
		'CHILD'     => 'children',
		'COW'       => 'kine',
	);

static $IrregularS = array(
		'PEOPLE'    => 'PERSON',
		'MEN'       => 'man',
		'WOMEN'     => 'woman',
		'CHILDREN'  => 'child',
		'KINE'      => 'cow',
	);

static $WeIsI = array(
		'EQUIPMENT' => true,
		'INFORMATION'   => true,
		'RICE'      => true,
		'MONEY'     => true,
		'SPECIES'   => true,
		'SERIES'    => true,
		'FISH'      => true,
		'SHEEP'     => true,
	);

// CFR Lamest singular inflector ever - @todo Make it real!
	// Note: There is an assumption here...and it is that the argument's length >= 4
	function _singularize($table)
	{

if (!ADODB_Active_Record::$_changeNames) {
		return $table;
	}
		$ut = strtoupper($table);
		if(isset(self::$WeIsI[$ut])) {
			return $table;
		}
		if(isset(self::$IrregularS[$ut])) {
			return self::$IrregularS[$ut];
		}
		$len = strlen($table);
		if($ut[$len-1] != 'S') {
			return $table; // I know...forget oxen
		}
		if($ut[$len-2] != 'E') {
			return substr($table, 0, $len-1);
		}
		switch($ut[$len-3]) {
			case 'S':
			case 'X':
				return substr($table, 0, $len-2);
			case 'I':
				return substr($table, 0, $len-3) . 'y';
			case 'H';
				if($ut[$len-4] == 'C' || $ut[$len-4] == 'S') {
					return substr($table, 0, $len-2);
				}
			default:
				return substr($table, 0, $len-1); // ?
		}
	}

/*
	 * ar->foreignName will contain the name of the tables associated with this table because
	 * these other tables' rows may also be referenced by this table using theirname_id or the provided
	 * foreign keys (this index name is stored in ar->foreignKey)
	 *
	 * this-table.id = other-table-#1.this-table_id
	 *               = other-table-#2.this-table_id
	 */
	function hasMany($foreignRef,$foreignKey=false)
	{
		$ar = new ADODB_Active_Record($foreignRef);
		$ar->foreignName = $foreignRef;
		$ar->UpdateActiveTable();
		$ar->foreignKey = ($foreignKey) ? $foreignKey : strtolower(get_class($this)) . self::$_foreignSuffix;

$table =& $this->TableInfo();
		if(!isset($table->_hasMany[$foreignRef])) {
			$table->_hasMany[$foreignRef] = $ar;
			$table->updateColsCount();
		}
# @todo Can I make this guy be lazy?
		$this->$foreignRef = $table->_hasMany[$foreignRef]; // WATCHME Removed assignment by ref. to please __get()
	}

/**
	 * ar->foreignName will contain the name of the tables associated with this table because
	 * this table's rows may also be referenced by those tables using thistable_id or the provided
	 * foreign keys (this index name is stored in ar->foreignKey)
	 *
	 * this-table.other-table_id = other-table.id
	 */
	function belongsTo($foreignRef,$foreignKey=false)
	{
		global $inflector;

$ar = new ADODB_Active_Record($this->_pluralize($foreignRef));
		$ar->foreignName = $foreignRef;
		$ar->UpdateActiveTable();
		$ar->foreignKey = ($foreignKey) ? $foreignKey : $ar->foreignName . self::$_foreignSuffix;

$table =& $this->TableInfo();
		if(!isset($table->_belongsTo[$foreignRef])) {
			$table->_belongsTo[$foreignRef] = $ar;
			$table->updateColsCount();
		}
		$this->$foreignRef = $table->_belongsTo[$foreignRef];
	}

/**
	 * __get Access properties - used for lazy loading
	 *
	 * @param mixed $name
	 * @access protected
	 * @return void
	 */
	function __get($name)
	{
		return $this->LoadRelations($name, '', -1. -1);
	}

function LoadRelations($name, $whereOrderBy, $offset=-1, $limit=-1)
	{
		$extras = array();
		if($offset >= 0) {
			$extras['offset'] = $offset;
		}
		if($limit >= 0) {
			$extras['limit'] = $limit;
		}
		$table =& $this->TableInfo();

if (strlen($whereOrderBy)) {
			if (!preg_match('/^[ \n\r]*AND/i',$whereOrderBy)) {
				if (!preg_match('/^[ \n\r]*ORDER[ \n\r]/i',$whereOrderBy)) {
					$whereOrderBy = 'AND '.$whereOrderBy;
				}
			}
		}

if(!empty($table->_belongsTo[$name])) {
			$obj = $table->_belongsTo[$name];
			$columnName = $obj->foreignKey;
			if(empty($this->$columnName)) {
				$this->$name = null;
			}
			else {
				if(($k = reset($obj->TableInfo()->keys))) {
					$belongsToId = $k;
				}
				else {
					$belongsToId = 'id';
				}

$arrayOfOne =
					$obj->Find(
						$belongsToId.'='.$this->$columnName.' '.$whereOrderBy, false, false, $extras);
				$this->$name = $arrayOfOne[0];
			}
			return $this->$name;
		}
		if(!empty($table->_hasMany[$name])) {
			$obj = $table->_hasMany[$name];
			if(($k = reset($table->keys))) {
				$hasManyId   = $k;
			}
			else {
				$hasManyId   = 'id';
			}

$this->$name =
				$obj->Find(
					$obj->foreignKey.'='.$this->$hasManyId.' '.$whereOrderBy, false, false, $extras);
			return $this->$name;
		}
	}
	//////////////////////////////////

// update metadata
	function UpdateActiveTable($pkeys=false,$forceUpdate=false)
	{
	global $_ADODB_ACTIVE_DBS , $ADODB_CACHE_DIR, $ADODB_ACTIVE_CACHESECS;
	global $ADODB_ACTIVE_DEFVALS, $ADODB_FETCH_MODE;

$activedb = $_ADODB_ACTIVE_DBS[$this->_dbat];

$table = $this->_table;
		$tables = $activedb->tables;
		$tableat = $this->_tableat;
		if (!$forceUpdate && !empty($tables[$tableat])) {

$tobj = $tables[$tableat];
			foreach($tobj->flds as $name => $fld) {
				if ($ADODB_ACTIVE_DEFVALS && isset($fld->default_value)) {
					$this->$name = $fld->default_value;
				}
				else {
					$this->$name = null;
				}
			}
			return;
		}

$db = $activedb->db;
		$fname = $ADODB_CACHE_DIR . '/adodb_' . $db->databaseType . '_active_'. $table . '.cache';
		if (!$forceUpdate && $ADODB_ACTIVE_CACHESECS && $ADODB_CACHE_DIR && file_exists($fname)) {
			$fp = fopen($fname,'r');
			@flock($fp, LOCK_SH);
			$acttab = unserialize(fread($fp,100000));
			fclose($fp);
			if ($acttab->_created + $ADODB_ACTIVE_CACHESECS - (abs(rand()) % 16) > time()) {
				// abs(rand()) randomizes deletion, reducing contention to delete/refresh file
				// ideally, you should cache at least 32 secs
				$activedb->tables[$table] = $acttab;

//if ($db->debug) ADOConnection::outp("Reading cached active record file: $fname");
					return;
			} else if ($db->debug) {
				ADOConnection::outp("Refreshing cached active record file: $fname");
			}
		}
		$activetab = new ADODB_Active_Table();
		$activetab->name = $table;

$save = $ADODB_FETCH_MODE;
		$ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;
		if ($db->fetchMode !== false) {
			$savem = $db->SetFetchMode(false);
		}

$cols = $db->MetaColumns($table);

if (isset($savem)) {
			$db->SetFetchMode($savem);
		}
		$ADODB_FETCH_MODE = $save;

if (!$cols) {
			$this->Error("Invalid table name: $table",'UpdateActiveTable');
			return false;
		}
		$fld = reset($cols);
		if (!$pkeys) {
			if (isset($fld->primary_key)) {
				$pkeys = array();
				foreach($cols as $name => $fld) {
					if (!empty($fld->primary_key)) {
						$pkeys[] = $name;
					}
				}
			} else {
				$pkeys = $this->GetPrimaryKeys($db, $table);
			}
		}
		if (empty($pkeys)) {
			$this->Error("No primary key found for table $table",'UpdateActiveTable');
			return false;
		}

$attr = array();
		$keys = array();

switch (ADODB_ASSOC_CASE) {
		case ADODB_ASSOC_CASE_LOWER:
			foreach($cols as $name => $fldobj) {
				$name = strtolower($name);
				if ($ADODB_ACTIVE_DEFVALS && isset($fldobj->default_value)) {
					$this->$name = $fldobj->default_value;
				}
				else {
					$this->$name = null;
				}
				$attr[$name] = $fldobj;
			}
			foreach($pkeys as $k => $name) {
				$keys[strtolower($name)] = strtolower($name);
			}
			break;

case ADODB_ASSOC_CASE_UPPER:
			foreach($cols as $name => $fldobj) {
				$name = strtoupper($name);

if ($ADODB_ACTIVE_DEFVALS && isset($fldobj->default_value)) {
					$this->$name = $fldobj->default_value;
				}
				else {
					$this->$name = null;
				}
				$attr[$name] = $fldobj;
			}

foreach($pkeys as $k => $name) {
				$keys[strtoupper($name)] = strtoupper($name);
			}
			break;
		default:
			foreach($cols as $name => $fldobj) {
				$name = ($fldobj->name);

if ($ADODB_ACTIVE_DEFVALS && isset($fldobj->default_value)) {
					$this->$name = $fldobj->default_value;
				}
				else {
					$this->$name = null;
				}
				$attr[$name] = $fldobj;
			}
			foreach($pkeys as $k => $name) {
				$keys[$name] = $cols[$name]->name;
			}
			break;
		}

$activetab->keys = $keys;
		$activetab->flds = $attr;
		$activetab->updateColsCount();

if ($ADODB_ACTIVE_CACHESECS && $ADODB_CACHE_DIR) {
			$activetab->_created = time();
			$s = serialize($activetab);
			if (!function_exists('adodb_write_file')) {
				include_once(ADODB_DIR.'/adodb-csvlib.inc.php');
			}
			adodb_write_file($fname,$s);
		}
		if (isset($activedb->tables[$table])) {
			$oldtab = $activedb->tables[$table];

if ($oldtab) {
				$activetab->_belongsTo = $oldtab->_belongsTo;
				$activetab->_hasMany = $oldtab->_hasMany;
			}
		}
		$activedb->tables[$table] = $activetab;
	}

function GetPrimaryKeys(&$db, $table)
	{
		return $db->MetaPrimaryKeys($table);
	}

// error handler for both PHP4+5.
	function Error($err,$fn)
	{
	global $_ADODB_ACTIVE_DBS;

$fn = get_class($this).'::'.$fn;
		$this->_lasterr = $fn.': '.$err;

if ($this->_dbat < 0) {
			$db = false;
		}
		else {
			$activedb = $_ADODB_ACTIVE_DBS[$this->_dbat];
			$db = $activedb->db;
		}

if (function_exists('adodb_throw')) {
			if (!$db) {
				adodb_throw('ADOdb_Active_Record', $fn, -1, $err, 0, 0, false);
			}
			else {
				adodb_throw($db->databaseType, $fn, -1, $err, 0, 0, $db);
			}
		} else {
			if (!$db || $db->debug) {
				ADOConnection::outp($this->_lasterr);
			}
		}

}

// return last error message
	function ErrorMsg()
	{
		if (!function_exists('adodb_throw')) {
			if ($this->_dbat < 0) {
				$db = false;
			}
			else {
				$db = $this->DB();
			}

// last error could be database error too
			if ($db && $db->ErrorMsg()) {
				return $db->ErrorMsg();
			}
		}
		return $this->_lasterr;
	}

function ErrorNo()
	{
		if ($this->_dbat < 0) {
			return -9999; // no database connection...
		}
		$db = $this->DB();

return (int) $db->ErrorNo();
	}

// retrieve ADOConnection from _ADODB_Active_DBs
	function DB()
	{
	global $_ADODB_ACTIVE_DBS;

if ($this->_dbat < 0) {
			$false = false;
			$this->Error("No database connection set: use ADOdb_Active_Record::SetDatabaseAdaptor(\$db)", "DB");
			return $false;
		}
		$activedb = $_ADODB_ACTIVE_DBS[$this->_dbat];
		$db = $activedb->db;
		return $db;
	}

// retrieve ADODB_Active_Table
	function &TableInfo()
	{
	global $_ADODB_ACTIVE_DBS;

$activedb = $_ADODB_ACTIVE_DBS[$this->_dbat];
		$table = $activedb->tables[$this->_tableat];
		return $table;
	}

// I have an ON INSERT trigger on a table that sets other columns in the table.
	// So, I find that for myTable, I want to reload an active record after saving it. -- Malcolm Cook
	function Reload()
	{
		$db =& $this->DB();
		if (!$db) {
			return false;
		}
		$table =& $this->TableInfo();
		$where = $this->GenWhere($db, $table);
		return($this->Load($where));
	}

// set a numeric array (using natural table field ordering) as object properties
	function Set(&$row)
	{
	global $ACTIVE_RECORD_SAFETY;

$db = $this->DB();

if (!$row) {
			$this->_saved = false;
			return false;
		}

$this->_saved = true;

$table = $this->TableInfo();
		$sizeofFlds = sizeof($table->flds);
		$sizeofRow  = sizeof($row);
		if ($ACTIVE_RECORD_SAFETY && $table->_colsCount != $sizeofRow && $sizeofFlds != $sizeofRow) {
			# <AP>
			$bad_size = TRUE;
			if($sizeofRow == 2 * $table->_colsCount || $sizeofRow == 2 * $sizeofFlds) {
				// Only keep string keys
				$keys = array_filter(array_keys($row), 'is_string');
				if (sizeof($keys) == sizeof($table->flds)) {
					$bad_size = FALSE;
				}
			}
			if ($bad_size) {
				$this->Error("Table structure of $this->_table has changed","Load");
				return false;
			}
			# </AP>
		}
		else {
			$keys = array_keys($row);
		}

# <AP>
		reset($keys);
		$this->_original = array();
		foreach($table->flds as $name=>$fld) {
			$value = $row[current($keys)];
			$this->$name = $value;
			$this->_original[] = $value;
			if(!next($keys)) {
				break;
			}
		}
		$table =& $this->TableInfo();
		foreach($table->_belongsTo as $foreignTable) {
			$ft = $foreignTable->TableInfo();
			$propertyName = $ft->name;
			foreach($ft->flds as $name=>$fld) {
				$value = $row[current($keys)];
				$foreignTable->$name = $value;
				$foreignTable->_original[] = $value;
				if(!next($keys)) {
					break;
				}
			}
		}
		foreach($table->_hasMany as $foreignTable) {
			$ft = $foreignTable->TableInfo();
			foreach($ft->flds as $name=>$fld) {
				$value = $row[current($keys)];
				$foreignTable->$name = $value;
				$foreignTable->_original[] = $value;
				if(!next($keys)) {
					break;
				}
			}
		}
		# </AP>

return true;
	}

// get last inserted id for INSERT
	function LastInsertID(&$db,$fieldname)
	{
		if ($db->hasInsertID) {
			$val = $db->Insert_ID($this->_table,$fieldname);
		}
		else {
			$val = false;
		}

if (is_null($val) || $val === false) {
			// this might not work reliably in multi-user environment
			return $db->GetOne("select max(".$fieldname.") from ".$this->_table);
		}
		return $val;
	}

// quote data in where clause
	function doquote(&$db, $val,$t)
	{
		switch($t) {
		case 'D':
		case 'T':
			if (empty($val)) {
				return 'null';
			}
		case 'C':
		case 'X':
			if (is_null($val)) {
				return 'null';
			}
			if (strlen($val)>0 &&
				(strncmp($val,"'",1) != 0 || substr($val,strlen($val)-1,1) != "'")
			) {
				return $db->qstr($val);
				break;
			}
		default:
			return $val;
			break;
		}
	}

// generate where clause for an UPDATE/SELECT
	function GenWhere(&$db, &$table)
	{
		$keys = $table->keys;
		$parr = array();

foreach($keys as $k) {
			$f = $table->flds[$k];
			if ($f) {
				$parr[] = $k.' = '.$this->doquote($db,$this->$k,$db->MetaType($f->type));
			}
		}
		return implode(' and ', $parr);
	}

//------------------------------------------------------------ Public functions below

function Load($where=null,$bindarr=false)
	{
		$db = $this->DB();
		if (!$db) {
			return false;
		}
		$this->_where = $where;

$save = $db->SetFetchMode(ADODB_FETCH_NUM);
		$qry = "select * from ".$this->_table;
		$table =& $this->TableInfo();

if(($k = reset($table->keys))) {
			$hasManyId   = $k;
		}
		else {
			$hasManyId   = 'id';
		}

foreach($table->_belongsTo as $foreignTable) {
			if(($k = reset($foreignTable->TableInfo()->keys))) {
				$belongsToId = $k;
			}
			else {
				$belongsToId = 'id';
			}
			$qry .= ' LEFT JOIN '.$foreignTable->_table.' ON '.
				$this->_table.'.'.$foreignTable->foreignKey.'='.
				$foreignTable->_table.'.'.$belongsToId;
		}
		foreach($table->_hasMany as $foreignTable)
		{
			$qry .= ' LEFT JOIN '.$foreignTable->_table.' ON '.
				$this->_table.'.'.$hasManyId.'='.
				$foreignTable->_table.'.'.$foreignTable->foreignKey;
		}
		if($where) {
			$qry .= ' WHERE '.$where;
		}

// Simple case: no relations. Load row and return.
		if((count($table->_hasMany) + count($table->_belongsTo)) < 1) {
			$row = $db->GetRow($qry,$bindarr);
			if(!$row) {
				return false;
			}
			$db->SetFetchMode($save);
			return $this->Set($row);
		}

// More complex case when relations have to be collated
		$rows = $db->GetAll($qry,$bindarr);
		if(!$rows) {
			return false;
		}
		$db->SetFetchMode($save);
		if(count($rows) < 1) {
			return false;
		}
		$class = get_class($this);
		$isFirstRow = true;

if(($k = reset($this->TableInfo()->keys))) {
			$myId   = $k;
		}
		else {
			$myId   = 'id';
		}
		$index = 0; $found = false;
		/** @todo Improve by storing once and for all in table metadata */
		/** @todo Also re-use info for hasManyId */
		foreach($this->TableInfo()->flds as $fld) {
			if($fld->name == $myId) {
				$found = true;
				break;
			}
			$index++;
		}
		if(!$found) {
			$this->outp_throw("Unable to locate key $myId for $class in Load()",'Load');
		}

foreach($rows as $row) {
			$rowId = intval($row[$index]);
			if($rowId > 0) {
				if($isFirstRow) {
					$isFirstRow = false;
					if(!$this->Set($row)) {
						return false;
					}
				}
				$obj = new $class($table,false,$db);
				$obj->Set($row);
				// TODO Copy/paste code below: bad!
				if(count($table->_hasMany) > 0) {
					foreach($table->_hasMany as $foreignTable) {
						$foreignName = $foreignTable->foreignName;
						if(!empty($obj->$foreignName)) {
							if(!is_array($this->$foreignName)) {
								$foreignObj = $this->$foreignName;
								$this->$foreignName = array(clone($foreignObj));
							}
							else {
								$foreignObj = $obj->$foreignName;
								array_push($this->$foreignName, clone($foreignObj));
							}
						}
					}
				}
				if(count($table->_belongsTo) > 0) {
					foreach($table->_belongsTo as $foreignTable) {
						$foreignName = $foreignTable->foreignName;
						if(!empty($obj->$foreignName)) {
							if(!is_array($this->$foreignName)) {
								$foreignObj = $this->$foreignName;
								$this->$foreignName = array(clone($foreignObj));
							}
							else {
								$foreignObj = $obj->$foreignName;
								array_push($this->$foreignName, clone($foreignObj));
							}
						}
					}
				}
			}
		}
		return true;
	}

// false on error
	function Save()
	{
		if ($this->_saved) {
			$ok = $this->Update();
		}
		else {
			$ok = $this->Insert();
		}

return $ok;
	}

// CFR: Sometimes we may wish to consider that an object is not to be replaced but inserted.
	// Sample use case: an 'undo' command object (after a delete())
	function Dirty()
	{
		$this->_saved = false;
	}

// false on error
	function Insert()
	{
		$db = $this->DB();
		if (!$db) {
			return false;
		}
		$cnt = 0;
		$table = $this->TableInfo();

$valarr = array();
		$names = array();
		$valstr = array();

foreach($table->flds as $name=>$fld) {
			$val = $this->$name;
			if(!is_null($val) || !array_key_exists($name, $table->keys)) {
				$valarr[] = $val;
				$names[] = $name;
				$valstr[] = $db->Param($cnt);
				$cnt += 1;
			}
		}

if (empty($names)){
			foreach($table->flds as $name=>$fld) {
				$valarr[] = null;
				$names[] = $name;
				$valstr[] = $db->Param($cnt);
				$cnt += 1;
			}
		}
		$sql = 'INSERT INTO '.$this->_table."(".implode(',',$names).') VALUES ('.implode(',',$valstr).')';
		$ok = $db->Execute($sql,$valarr);

if ($ok) {
			$this->_saved = true;
			$autoinc = false;
			foreach($table->keys as $k) {
				if (is_null($this->$k)) {
					$autoinc = true;
					break;
				}
			}
			if ($autoinc && sizeof($table->keys) == 1) {
				$k = reset($table->keys);
				$this->$k = $this->LastInsertID($db,$k);
			}
		}

$this->_original = $valarr;
		return !empty($ok);
	}

function Delete()
	{
		$db = $this->DB();
		if (!$db) {
			return false;
		}
		$table = $this->TableInfo();

$where = $this->GenWhere($db,$table);
		$sql = 'DELETE FROM '.$this->_table.' WHERE '.$where;
		$ok = $db->Execute($sql);

return $ok ? true : false;
	}

// returns an array of active record objects
	function Find($whereOrderBy,$bindarr=false,$pkeysArr=false,$extra=array())
	{
		$db = $this->DB();
		if (!$db || empty($this->_table)) {
			return false;
		}
		$table =& $this->TableInfo();
		$arr = $db->GetActiveRecordsClass(get_class($this),$this, $whereOrderBy,$bindarr,$pkeysArr,$extra,
			array('foreignName'=>$this->foreignName, 'belongsTo'=>$table->_belongsTo, 'hasMany'=>$table->_hasMany));
		return $arr;
	}

// CFR: In introduced this method to ensure that inner workings are not disturbed by
	// subclasses...for instance when GetActiveRecordsClass invokes Find()
	// Why am I not invoking parent::Find?
	// Shockingly because I want to preserve PHP4 compatibility.
	function packageFind($whereOrderBy,$bindarr=false,$pkeysArr=false,$extra=array())
	{
		$db = $this->DB();
		if (!$db || empty($this->_table)) {
			return false;
		}
		$table =& $this->TableInfo();
		$arr = $db->GetActiveRecordsClass(get_class($this),$this, $whereOrderBy,$bindarr,$pkeysArr,$extra,
			array('foreignName'=>$this->foreignName, 'belongsTo'=>$table->_belongsTo, 'hasMany'=>$table->_hasMany));
		return $arr;
	}

// returns 0 on error, 1 on update, 2 on insert
	function Replace()
	{
		$db = $this->DB();
		if (!$db) {
			return false;
		}
		$table = $this->TableInfo();

$pkey = $table->keys;

foreach($table->flds as $name=>$fld) {
			$val = $this->$name;
			/*
			if (is_null($val)) {
				if (isset($fld->not_null) && $fld->not_null) {
					if (isset($fld->default_value) && strlen($fld->default_value)) {
						continue;
					}
					else {
						$this->Error("Cannot update null into $name","Replace");
						return false;
					}
				}
			}*/
			if (is_null($val) && !empty($fld->auto_increment)) {
				continue;
			}
			$t = $db->MetaType($fld->type);
			$arr[$name] = $this->doquote($db,$val,$t);
			$valarr[] = $val;
		}

if (!is_array($pkey)) {
			$pkey = array($pkey);
		}

switch (ADODB_ASSOC_CASE) {
			case ADODB_ASSOC_CASE_LOWER:
				foreach($pkey as $k => $v) {
					$pkey[$k] = strtolower($v);
				}
				break;
			case ADODB_ASSOC_CASE_UPPER:
				foreach($pkey as $k => $v) {
					$pkey[$k] = strtoupper($v);
				}
				break;
		}

$ok = $db->Replace($this->_table,$arr,$pkey);
		if ($ok) {
			$this->_saved = true; // 1= update 2=insert
			if ($ok == 2) {
				$autoinc = false;
				foreach($table->keys as $k) {
					if (is_null($this->$k)) {
						$autoinc = true;
						break;
					}
				}
				if ($autoinc && sizeof($table->keys) == 1) {
					$k = reset($table->keys);
					$this->$k = $this->LastInsertID($db,$k);
				}
			}

$this->_original = $valarr;
		}
		return $ok;
	}

// returns 0 on error, 1 on update, -1 if no change in data (no update)
	function Update()
	{
		$db = $this->DB();
		if (!$db) {
			return false;
		}
		$table = $this->TableInfo();

$where = $this->GenWhere($db, $table);

if (!$where) {
			$this->error("Where missing for table $table", "Update");
			return false;
		}
		$valarr = array();
		$neworig = array();
		$pairs = array();
		$i = -1;
		$cnt = 0;
		foreach($table->flds as $name=>$fld) {
			$i += 1;
			$val = $this->$name;
			$neworig[] = $val;

if (isset($table->keys[$name])) {
				continue;
			}

if (is_null($val)) {
				if (isset($fld->not_null) && $fld->not_null) {
					if (isset($fld->default_value) && strlen($fld->default_value)) {
						continue;
					}
					else {
						$this->Error("Cannot set field $name to NULL","Update");
						return false;
					}
				}
			}

if (isset($this->_original[$i]) && $val === $this->_original[$i]) {
				continue;
			}
			$valarr[] = $val;
			$pairs[] = $name.'='.$db->Param($cnt);
			$cnt += 1;
		}

if (!$cnt) {
			return -1;
		}
		$sql = 'UPDATE '.$this->_table." SET ".implode(",",$pairs)." WHERE ".$where;
		$ok = $db->Execute($sql,$valarr);
		if ($ok) {
			$this->_original = $neworig;
			return 1;
		}
		return 0;
	}

function GetAttributeNames()
	{
		$table = $this->TableInfo();
		if (!$table) {
			return false;
		}
		return array_keys($table->flds);
	}

};

function adodb_GetActiveRecordsClass(&$db, $class, $tableObj,$whereOrderBy,$bindarr, $primkeyArr,
			$extra, $relations)
{
	global $_ADODB_ACTIVE_DBS;

if (empty($extra['loading'])) {
			$extra['loading'] = ADODB_LAZY_AR;
		}
		$save = $db->SetFetchMode(ADODB_FETCH_NUM);
		$table = &$tableObj->_table;
		$tableInfo =& $tableObj->TableInfo();
		if(($k = reset($tableInfo->keys))) {
			$myId = $k;
		}
		else {
			$myId = 'id';
		}
		$index = 0; $found = false;
		/** @todo Improve by storing once and for all in table metadata */
		/** @todo Also re-use info for hasManyId */
		foreach($tableInfo->flds as $fld)
		{
			if($fld->name == $myId) {
				$found = true;
				break;
			}
			$index++;
		}
		if(!$found) {
			$db->outp_throw("Unable to locate key $myId for $class in GetActiveRecordsClass()",'GetActiveRecordsClass');
		}

$qry = "select * from ".$table;
		if(ADODB_JOIN_AR == $extra['loading']) {
			if(!empty($relations['belongsTo'])) {
				foreach($relations['belongsTo'] as $foreignTable) {
					if(($k = reset($foreignTable->TableInfo()->keys))) {
						$belongsToId = $k;
					}
					else {
						$belongsToId = 'id';
					}

$qry .= ' LEFT JOIN '.$foreignTable->_table.' ON '.
						$table.'.'.$foreignTable->foreignKey.'='.
						$foreignTable->_table.'.'.$belongsToId;
				}
			}
			if(!empty($relations['hasMany'])) {
				if(empty($relations['foreignName'])) {
					$db->outp_throw("Missing foreignName is relation specification in GetActiveRecordsClass()",'GetActiveRecordsClass');
				}
				if(($k = reset($tableInfo->keys))) {
					$hasManyId   = $k;
				}
				else {
					$hasManyId   = 'id';
				}

foreach($relations['hasMany'] as $foreignTable) {
					$qry .= ' LEFT JOIN '.$foreignTable->_table.' ON '.
						$table.'.'.$hasManyId.'='.
						$foreignTable->_table.'.'.$foreignTable->foreignKey;
				}
			}
		}
		if (!empty($whereOrderBy)) {
			$qry .= ' WHERE '.$whereOrderBy;
		}
		if(isset($extra['limit'])) {
			$rows = false;
			if(isset($extra['offset'])) {
				$rs = $db->SelectLimit($qry, $extra['limit'], $extra['offset']);
			} else {
				$rs = $db->SelectLimit($qry, $extra['limit']);
			}
			if ($rs) {
				while (!$rs->EOF) {
					$rows[] = $rs->fields;
					$rs->MoveNext();
				}
			}
		} else
			$rows = $db->GetAll($qry,$bindarr);

$db->SetFetchMode($save);

$false = false;

if ($rows === false) {
			return $false;
		}

if (!isset($_ADODB_ACTIVE_DBS)) {
			include_once(ADODB_DIR.'/adodb-active-record.inc.php');
		}
		if (!class_exists($class)) {
			$db->outp_throw("Unknown class $class in GetActiveRecordsClass()",'GetActiveRecordsClass');
			return $false;
		}
		$uniqArr = array(); // CFR Keep track of records for relations
		$arr = array();
		// arrRef will be the structure that knows about our objects.
		// It is an associative array.
		// We will, however, return arr, preserving regular 0.. order so that
		// obj[0] can be used by app developers.
		$arrRef = array();
		$bTos = array(); // Will store belongTo's indices if any
		foreach($rows as $row) {

$obj = new $class($table,$primkeyArr,$db);
			if ($obj->ErrorNo()){
				$db->_errorMsg = $obj->ErrorMsg();
				return $false;
			}
			$obj->Set($row);
			// CFR: FIXME: Insane assumption here:
			// If the first column returned is an integer, then it's a 'id' field
			// And to make things a bit worse, I use intval() rather than is_int() because, in fact,
			// $row[0] is not an integer.
			//
			// So, what does this whole block do?
			// When relationships are found, we perform JOINs. This is fast. But not accurate:
			// instead of returning n objects with their n' associated cousins,
			// we get n*n' objects. This code fixes this.
			// Note: to-many relationships mess around with the 'limit' parameter
			$rowId = intval($row[$index]);

if(ADODB_WORK_AR == $extra['loading']) {
				$arrRef[$rowId] = $obj;
				$arr[] = &$arrRef[$rowId];
				if(!isset($indices)) {
					$indices = $rowId;
				}
				else {
					$indices .= ','.$rowId;
				}
				if(!empty($relations['belongsTo'])) {
					foreach($relations['belongsTo'] as $foreignTable) {
						$foreignTableRef = $foreignTable->foreignKey;
						// First array: list of foreign ids we are looking for
						if(empty($bTos[$foreignTableRef])) {
							$bTos[$foreignTableRef] = array();
						}
						// Second array: list of ids found
						if(empty($obj->$foreignTableRef)) {
							continue;
						}
						if(empty($bTos[$foreignTableRef][$obj->$foreignTableRef])) {
							$bTos[$foreignTableRef][$obj->$foreignTableRef] = array();
						}
						$bTos[$foreignTableRef][$obj->$foreignTableRef][] = $obj;
					}
				}
				continue;
			}

if($rowId>0) {
				if(ADODB_JOIN_AR == $extra['loading']) {
					$isNewObj = !isset($uniqArr['_'.$row[0]]);
					if($isNewObj) {
						$uniqArr['_'.$row[0]] = $obj;
					}

// TODO Copy/paste code below: bad!
					if(!empty($relations['hasMany'])) {
						foreach($relations['hasMany'] as $foreignTable) {
							$foreignName = $foreignTable->foreignName;
							if(!empty($obj->$foreignName)) {
								$masterObj = &$uniqArr['_'.$row[0]];
								// Assumption: this property exists in every object since they are instances of the same class
								if(!is_array($masterObj->$foreignName)) {
									// Pluck!
									$foreignObj = $masterObj->$foreignName;
									$masterObj->$foreignName = array(clone($foreignObj));
								}
								else {
									// Pluck pluck!
									$foreignObj = $obj->$foreignName;
									array_push($masterObj->$foreignName, clone($foreignObj));
								}
							}
						}
					}
					if(!empty($relations['belongsTo'])) {
						foreach($relations['belongsTo'] as $foreignTable) {
							$foreignName = $foreignTable->foreignName;
							if(!empty($obj->$foreignName)) {
								$masterObj = &$uniqArr['_'.$row[0]];
								// Assumption: this property exists in every object since they are instances of the same class
								if(!is_array($masterObj->$foreignName)) {
									// Pluck!
									$foreignObj = $masterObj->$foreignName;
									$masterObj->$foreignName = array(clone($foreignObj));
								}
								else {
									// Pluck pluck!
									$foreignObj = $obj->$foreignName;
									array_push($masterObj->$foreignName, clone($foreignObj));
								}
							}
						}
					}
					if(!$isNewObj) {
						unset($obj); // We do not need this object itself anymore and do not want it re-added to the main array
					}
				}
				else if(ADODB_LAZY_AR == $extra['loading']) {
					// Lazy loading: we need to give AdoDb a hint that we have not really loaded
					// anything, all the while keeping enough information on what we wish to load.
					// Let's do this by keeping the relevant info in our relationship arrays
					// but get rid of the actual properties.
					// We will then use PHP's __get to load these properties on-demand.
					if(!empty($relations['hasMany'])) {
						foreach($relations['hasMany'] as $foreignTable) {
							$foreignName = $foreignTable->foreignName;
							if(!empty($obj->$foreignName)) {
								unset($obj->$foreignName);
							}
						}
					}
					if(!empty($relations['belongsTo'])) {
						foreach($relations['belongsTo'] as $foreignTable) {
							$foreignName = $foreignTable->foreignName;
							if(!empty($obj->$foreignName)) {
								unset($obj->$foreignName);
							}
						}
					}
				}
			}

if(isset($obj)) {
				$arr[] = $obj;
			}
		}

if(ADODB_WORK_AR == $extra['loading']) {
			// The best of both worlds?
			// Here, the number of queries is constant: 1 + n*relationship.
			// The second query will allow us to perform a good join
			// while preserving LIMIT etc.
			if(!empty($relations['hasMany'])) {
				foreach($relations['hasMany'] as $foreignTable) {
					$foreignName = $foreignTable->foreignName;
					$className = ucfirst($foreignTable->_singularize($foreignName));
					$obj = new $className();
					$dbClassRef = $foreignTable->foreignKey;
					$objs = $obj->packageFind($dbClassRef.' IN ('.$indices.')');
					foreach($objs as $obj) {
						if(!is_array($arrRef[$obj->$dbClassRef]->$foreignName)) {
							$arrRef[$obj->$dbClassRef]->$foreignName = array();
						}
						array_push($arrRef[$obj->$dbClassRef]->$foreignName, $obj);
					}
				}

}
			if(!empty($relations['belongsTo'])) {
				foreach($relations['belongsTo'] as $foreignTable) {
					$foreignTableRef = $foreignTable->foreignKey;
					if(empty($bTos[$foreignTableRef])) {
						continue;
					}
					if(($k = reset($foreignTable->TableInfo()->keys))) {
						$belongsToId = $k;
					}
					else {
						$belongsToId = 'id';
					}
					$origObjsArr = $bTos[$foreignTableRef];
					$bTosString = implode(',', array_keys($bTos[$foreignTableRef]));
					$foreignName = $foreignTable->foreignName;
					$className = ucfirst($foreignTable->_singularize($foreignName));
					$obj = new $className();
					$objs = $obj->packageFind($belongsToId.' IN ('.$bTosString.')');
					foreach($objs as $obj)
					{
						foreach($origObjsArr[$obj->$belongsToId] as $idx=>$origObj)
						{
							$origObj->$foreignName = $obj;
						}
					}
				}
			}
		}

return $arr;
}

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