_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 => $d) { if (PHP_VERSION >= 5) { if ($d->db === $db) { return $k; } } else { if ($d->db->_connectionID === $db->_connectionID && $db->database == $d->db->database) { 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 $ADODB_ASSOC_CASE,$_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 $WeIsI = array( 'EQUIPMENT' => true, 'INFORMATION' => true, 'RICE' => true, 'MONEY' => true, 'SPECIES' => true, 'SERIES' => true, 'FISH' => true, 'SHEEP' => true, ); function _pluralize($table) { if (!ADODB_Active_Record::$_changeNames) { return $table; } $ut = strtoupper($table); if(isset(self::$WeIsI[$ut])) { return $table; } if(isset(self::$IrregularP[$ut])) { return self::$IrregularP[$ut]; } $len = strlen($table); $lastc = $ut[$len-1]; $lastc2 = substr($ut,$len-2); switch ($lastc) { case 'S': return $table.'es'; case 'Y': return substr($table,0,$len-1).'ies'; case 'X': return $table.'es'; case 'H': if ($lastc2 == 'CH' || $lastc2 == 'SH') { return $table.'es'; } default: return $table.'s'; } } // CFR Lamest singular inflector ever - @todo Make it real! // Note: There is an assumption here...and it is that the argument's length >= 4 function _singularize($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 $ADODB_ASSOC_CASE,$_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 0: 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($name); } break; case 1: foreach($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(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) { # $bad_size = TRUE; if($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; } # } else { $keys = array_keys($row); } # 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; } } } # 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() { global $ADODB_ASSOC_CASE; $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 ($ADODB_ASSOC_CASE == 0) { case ADODB_ASSOC_CASE_LOWER: foreach($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(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 developpers. $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; }