[903] | 1 | <?php |
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| 2 | /* |
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| 3 | |
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| 4 | @version V4.94 23 Jan 2007 (c) 2000-2007 John Lim (jlim#natsoft.com.my). All rights reserved. |
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| 5 | Latest version is available at http://adodb.sourceforge.net |
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| 6 | |
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| 7 | Released under both BSD license and Lesser GPL library license. |
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| 8 | Whenever there is any discrepancy between the two licenses, |
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| 9 | the BSD license will take precedence. |
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| 10 | |
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| 11 | Active Record implementation. Superset of Zend Framework's. |
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| 12 | |
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| 13 | Version 0.07 |
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| 14 | |
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| 15 | See http://www-128.ibm.com/developerworks/java/library/j-cb03076/?ca=dgr-lnxw01ActiveRecord |
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| 16 | for info on Ruby on Rails Active Record implementation |
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| 17 | */ |
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| 18 | |
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| 19 | global $_ADODB_ACTIVE_DBS; |
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| 20 | global $ADODB_ACTIVE_CACHESECS; // set to true to enable caching of metadata such as field info |
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| 21 | global $ACTIVE_RECORD_SAFETY; // set to false to disable safety checks |
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| 22 | |
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| 23 | // array of ADODB_Active_DB's, indexed by ADODB_Active_Record->_dbat |
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| 24 | $_ADODB_ACTIVE_DBS = array(); |
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| 25 | $ACTIVE_RECORD_SAFETY = true; |
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| 26 | |
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| 27 | class ADODB_Active_DB { |
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| 28 | var $db; // ADOConnection |
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| 29 | var $tables; // assoc array of ADODB_Active_Table objects, indexed by tablename |
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| 30 | } |
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| 31 | |
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| 32 | class ADODB_Active_Table { |
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| 33 | var $name; // table name |
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| 34 | var $flds; // assoc array of adofieldobjs, indexed by fieldname |
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| 35 | var $keys; // assoc array of primary keys, indexed by fieldname |
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| 36 | var $_created; // only used when stored as a cached file |
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| 37 | } |
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| 38 | |
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| 39 | // returns index into $_ADODB_ACTIVE_DBS |
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| 40 | function ADODB_SetDatabaseAdapter(&$db) |
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| 41 | { |
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| 42 | global $_ADODB_ACTIVE_DBS; |
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| 43 | |
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| 44 | foreach($_ADODB_ACTIVE_DBS as $k => $d) { |
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| 45 | if (PHP_VERSION >= 5) { |
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| 46 | if ($d->db === $db) return $k; |
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| 47 | } else { |
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| 48 | if ($d->db->_connectionID === $db->_connectionID && $db->database == $d->db->database) |
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| 49 | return $k; |
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| 50 | } |
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| 51 | } |
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| 52 | |
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| 53 | $obj = new ADODB_Active_DB(); |
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| 54 | $obj->db =& $db; |
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| 55 | $obj->tables = array(); |
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| 56 | |
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| 57 | $_ADODB_ACTIVE_DBS[] = $obj; |
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| 58 | |
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| 59 | return sizeof($_ADODB_ACTIVE_DBS)-1; |
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| 60 | } |
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| 61 | |
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| 62 | |
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| 63 | class ADODB_Active_Record { |
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| 64 | var $_dbat; // associative index pointing to ADODB_Active_DB eg. $ADODB_Active_DBS[_dbat] |
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| 65 | var $_table; // tablename, if set in class definition then use it as table name |
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| 66 | var $_tableat; // associative index pointing to ADODB_Active_Table, eg $ADODB_Active_DBS[_dbat]->tables[$this->_tableat] |
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| 67 | var $_where; // where clause set in Load() |
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| 68 | var $_saved = false; // indicates whether data is already inserted. |
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| 69 | var $_lasterr = false; // last error message |
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| 70 | var $_original = false; // the original values loaded or inserted, refreshed on update |
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| 71 | |
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| 72 | // should be static |
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| 73 | function SetDatabaseAdapter(&$db) |
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| 74 | { |
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| 75 | return ADODB_SetDatabaseAdapter($db); |
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| 76 | } |
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| 77 | |
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| 78 | // php4 constructor |
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| 79 | function ADODB_Active_Record($table = false, $pkeyarr=false, $db=false) |
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| 80 | { |
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| 81 | ADODB_Active_Record::__construct($table,$pkeyarr,$db); |
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| 82 | } |
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| 83 | |
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| 84 | // php5 constructor |
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| 85 | function __construct($table = false, $pkeyarr=false, $db=false) |
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| 86 | { |
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| 87 | global $ADODB_ASSOC_CASE,$_ADODB_ACTIVE_DBS; |
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| 88 | |
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| 89 | if ($db == false && is_object($pkeyarr)) { |
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| 90 | $db = $pkeyarr; |
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| 91 | $pkeyarr = false; |
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| 92 | } |
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| 93 | |
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| 94 | if (!$table) { |
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| 95 | if (!empty($this->_table)) $table = $this->_table; |
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| 96 | else $table = $this->_pluralize(get_class($this)); |
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| 97 | } |
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| 98 | if ($db) { |
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| 99 | $this->_dbat = ADODB_Active_Record::SetDatabaseAdapter($db); |
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| 100 | } else |
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| 101 | $this->_dbat = sizeof($_ADODB_ACTIVE_DBS)-1; |
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| 102 | |
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| 103 | |
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| 104 | if ($this->_dbat < 0) $this->Error("No database connection set; use ADOdb_Active_Record::SetDatabaseAdapter(\$db)",'ADODB_Active_Record::__constructor'); |
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| 105 | |
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| 106 | $this->_table = $table; |
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| 107 | $this->_tableat = $table; # reserved for setting the assoc value to a non-table name, eg. the sql string in future |
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| 108 | $this->UpdateActiveTable($pkeyarr); |
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| 109 | } |
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| 110 | |
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| 111 | function __wakeup() |
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| 112 | { |
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| 113 | $class = get_class($this); |
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| 114 | new $class; |
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| 115 | } |
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| 116 | |
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| 117 | function _pluralize($table) |
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| 118 | { |
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| 119 | $ut = strtoupper($table); |
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| 120 | $len = strlen($table); |
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| 121 | $lastc = $ut[$len-1]; |
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| 122 | $lastc2 = substr($ut,$len-2); |
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| 123 | switch ($lastc) { |
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| 124 | case 'S': |
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| 125 | return $table.'es'; |
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| 126 | case 'Y': |
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| 127 | return substr($table,0,$len-1).'ies'; |
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| 128 | case 'X': |
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| 129 | return $table.'es'; |
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| 130 | case 'H': |
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| 131 | if ($lastc2 == 'CH' || $lastc2 == 'SH') |
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| 132 | return $table.'es'; |
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| 133 | default: |
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| 134 | return $table.'s'; |
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| 135 | } |
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| 136 | } |
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| 137 | |
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| 138 | ////////////////////////////////// |
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| 139 | |
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| 140 | // update metadata |
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| 141 | function UpdateActiveTable($pkeys=false,$forceUpdate=false) |
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| 142 | { |
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| 143 | global $ADODB_ASSOC_CASE,$_ADODB_ACTIVE_DBS , $ADODB_CACHE_DIR, $ADODB_ACTIVE_CACHESECS; |
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| 144 | |
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| 145 | $activedb =& $_ADODB_ACTIVE_DBS[$this->_dbat]; |
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| 146 | |
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| 147 | $table = $this->_table; |
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| 148 | $tables = $activedb->tables; |
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| 149 | $tableat = $this->_tableat; |
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| 150 | if (!$forceUpdate && !empty($tables[$tableat])) { |
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| 151 | $tobj =& $tables[$tableat]; |
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| 152 | foreach($tobj->flds as $name => $fld) |
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| 153 | $this->$name = null; |
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| 154 | return; |
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| 155 | } |
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| 156 | |
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| 157 | $db =& $activedb->db; |
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| 158 | $fname = $ADODB_CACHE_DIR . '/adodb_' . $db->databaseType . '_active_'. $table . '.cache'; |
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| 159 | if (!$forceUpdate && $ADODB_ACTIVE_CACHESECS && $ADODB_CACHE_DIR && file_exists($fname)) { |
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| 160 | $fp = fopen($fname,'r'); |
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| 161 | @flock($fp, LOCK_SH); |
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| 162 | $acttab = unserialize(fread($fp,100000)); |
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| 163 | fclose($fp); |
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| 164 | if ($acttab->_created + $ADODB_ACTIVE_CACHESECS - (abs(rand()) % 16) > time()) { |
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| 165 | // abs(rand()) randomizes deletion, reducing contention to delete/refresh file |
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| 166 | // ideally, you should cache at least 32 secs |
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| 167 | $activedb->tables[$table] = $acttab; |
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| 168 | |
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| 169 | //if ($db->debug) ADOConnection::outp("Reading cached active record file: $fname"); |
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| 170 | return; |
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| 171 | } else if ($db->debug) { |
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| 172 | ADOConnection::outp("Refreshing cached active record file: $fname"); |
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| 173 | } |
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| 174 | } |
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| 175 | $activetab = new ADODB_Active_Table(); |
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| 176 | $activetab->name = $table; |
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| 177 | |
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| 178 | |
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| 179 | $cols = $db->MetaColumns($table); |
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| 180 | if (!$cols) { |
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| 181 | $this->Error("Invalid table name: $table",'UpdateActiveTable'); |
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| 182 | return false; |
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| 183 | } |
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| 184 | $fld = reset($cols); |
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| 185 | if (!$pkeys) { |
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| 186 | if (isset($fld->primary_key)) { |
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| 187 | $pkeys = array(); |
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| 188 | foreach($cols as $name => $fld) { |
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| 189 | if (!empty($fld->primary_key)) $pkeys[] = $name; |
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| 190 | } |
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| 191 | } else |
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| 192 | $pkeys = $this->GetPrimaryKeys($db, $table); |
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| 193 | } |
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| 194 | if (empty($pkeys)) { |
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| 195 | $this->Error("No primary key found for table $table",'UpdateActiveTable'); |
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| 196 | return false; |
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| 197 | } |
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| 198 | |
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| 199 | $attr = array(); |
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| 200 | $keys = array(); |
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| 201 | |
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| 202 | switch($ADODB_ASSOC_CASE) { |
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| 203 | case 0: |
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| 204 | foreach($cols as $name => $fldobj) { |
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| 205 | $name = strtolower($name); |
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| 206 | $this->$name = null; |
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| 207 | $attr[$name] = $fldobj; |
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| 208 | } |
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| 209 | foreach($pkeys as $k => $name) { |
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| 210 | $keys[strtolower($name)] = strtolower($name); |
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| 211 | } |
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| 212 | break; |
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| 213 | |
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| 214 | case 1: |
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| 215 | foreach($cols as $name => $fldobj) { |
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| 216 | $name = strtoupper($name); |
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| 217 | $this->$name = null; |
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| 218 | $attr[$name] = $fldobj; |
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| 219 | } |
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| 220 | |
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| 221 | foreach($pkeys as $k => $name) { |
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| 222 | $keys[strtoupper($name)] = strtoupper($name); |
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| 223 | } |
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| 224 | break; |
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| 225 | default: |
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| 226 | foreach($cols as $name => $fldobj) { |
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| 227 | $name = ($fldobj->name); |
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| 228 | $this->$name = null; |
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| 229 | $attr[$name] = $fldobj; |
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| 230 | } |
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| 231 | foreach($pkeys as $k => $name) { |
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| 232 | $keys[$name] = $cols[$name]->name; |
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| 233 | } |
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| 234 | break; |
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| 235 | } |
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| 236 | |
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| 237 | $activetab->keys = $keys; |
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| 238 | $activetab->flds = $attr; |
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| 239 | |
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| 240 | if ($ADODB_ACTIVE_CACHESECS && $ADODB_CACHE_DIR) { |
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| 241 | $activetab->_created = time(); |
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| 242 | $s = serialize($activetab); |
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| 243 | if (!function_exists('adodb_write_file')) include(ADODB_DIR.'/adodb-csvlib.inc.php'); |
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| 244 | adodb_write_file($fname,$s); |
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| 245 | } |
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| 246 | $activedb->tables[$table] = $activetab; |
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| 247 | } |
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| 248 | |
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| 249 | function GetPrimaryKeys(&$db, $table) |
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| 250 | { |
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| 251 | return $db->MetaPrimaryKeys($table); |
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| 252 | } |
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| 253 | |
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| 254 | // error handler for both PHP4+5. |
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| 255 | function Error($err,$fn) |
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| 256 | { |
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| 257 | global $_ADODB_ACTIVE_DBS; |
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| 258 | |
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| 259 | $fn = get_class($this).'::'.$fn; |
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| 260 | $this->_lasterr = $fn.': '.$err; |
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| 261 | |
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| 262 | if ($this->_dbat < 0) $db = false; |
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| 263 | else { |
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| 264 | $activedb = $_ADODB_ACTIVE_DBS[$this->_dbat]; |
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| 265 | $db =& $activedb->db; |
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| 266 | } |
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| 267 | |
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| 268 | if (function_exists('adodb_throw')) { |
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| 269 | if (!$db) adodb_throw('ADOdb_Active_Record', $fn, -1, $err, 0, 0, false); |
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| 270 | else adodb_throw($db->databaseType, $fn, -1, $err, 0, 0, $db); |
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| 271 | } else |
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| 272 | if (!$db || $db->debug) ADOConnection::outp($this->_lasterr); |
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| 273 | |
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| 274 | } |
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| 275 | |
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| 276 | // return last error message |
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| 277 | function ErrorMsg() |
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| 278 | { |
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| 279 | if (!function_exists('adodb_throw')) { |
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| 280 | if ($this->_dbat < 0) $db = false; |
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| 281 | else $db = $this->DB(); |
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| 282 | |
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| 283 | // last error could be database error too |
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| 284 | if ($db && $db->ErrorMsg()) return $db->ErrorMsg(); |
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| 285 | } |
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| 286 | return $this->_lasterr; |
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| 287 | } |
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| 288 | |
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| 289 | function ErrorNo() |
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| 290 | { |
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| 291 | if ($this->_dbat < 0) return -9999; // no database connection... |
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| 292 | $db = $this->DB(); |
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| 293 | |
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| 294 | return (int) $db->ErrorNo(); |
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| 295 | } |
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| 296 | |
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| 297 | |
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| 298 | // retrieve ADOConnection from _ADODB_Active_DBs |
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| 299 | function &DB() |
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| 300 | { |
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| 301 | global $_ADODB_ACTIVE_DBS; |
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| 302 | |
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| 303 | if ($this->_dbat < 0) { |
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| 304 | $false = false; |
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| 305 | $this->Error("No database connection set: use ADOdb_Active_Record::SetDatabaseAdaptor(\$db)", "DB"); |
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| 306 | return $false; |
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| 307 | } |
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| 308 | $activedb = $_ADODB_ACTIVE_DBS[$this->_dbat]; |
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| 309 | $db =& $activedb->db; |
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| 310 | return $db; |
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| 311 | } |
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| 312 | |
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| 313 | // retrieve ADODB_Active_Table |
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| 314 | function &TableInfo() |
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| 315 | { |
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| 316 | global $_ADODB_ACTIVE_DBS; |
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| 317 | |
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| 318 | $activedb = $_ADODB_ACTIVE_DBS[$this->_dbat]; |
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| 319 | $table =& $activedb->tables[$this->_tableat]; |
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| 320 | return $table; |
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| 321 | } |
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| 322 | |
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| 323 | // set a numeric array (using natural table field ordering) as object properties |
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| 324 | function Set(&$row) |
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| 325 | { |
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| 326 | global $ACTIVE_RECORD_SAFETY; |
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| 327 | |
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| 328 | $db =& $this->DB(); |
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| 329 | |
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| 330 | if (!$row) { |
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| 331 | $this->_saved = false; |
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| 332 | return false; |
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| 333 | } |
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| 334 | |
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| 335 | $this->_saved = true; |
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| 336 | |
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| 337 | $table =& $this->TableInfo(); |
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| 338 | if ($ACTIVE_RECORD_SAFETY && sizeof($table->flds) != sizeof($row)) { |
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| 339 | $this->Error("Table structure of $this->_table has changed","Load"); |
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| 340 | return false; |
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| 341 | } |
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| 342 | |
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| 343 | $cnt = 0; |
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| 344 | foreach($table->flds as $name=>$fld) { |
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| 345 | $this->$name = $row[$cnt]; |
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| 346 | $cnt += 1; |
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| 347 | } |
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| 348 | $this->_original = $row; |
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| 349 | return true; |
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| 350 | } |
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| 351 | |
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| 352 | // get last inserted id for INSERT |
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| 353 | function LastInsertID(&$db,$fieldname) |
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| 354 | { |
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| 355 | if ($db->hasInsertID) |
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| 356 | $val = $db->Insert_ID($this->_table,$fieldname); |
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| 357 | else |
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| 358 | $val = false; |
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| 359 | |
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| 360 | if (is_null($val) || $val === false) { |
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| 361 | // this might not work reliably in multi-user environment |
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| 362 | return $db->GetOne("select max(".$fieldname.") from ".$this->_table); |
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| 363 | } |
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| 364 | return $val; |
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| 365 | } |
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| 366 | |
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| 367 | // quote data in where clause |
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| 368 | function doquote(&$db, $val,$t) |
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| 369 | { |
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| 370 | switch($t) { |
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| 371 | case 'D': |
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| 372 | case 'T': |
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| 373 | if (empty($val)) return 'null'; |
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| 374 | |
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| 375 | case 'C': |
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| 376 | case 'X': |
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| 377 | if (is_null($val)) return 'null'; |
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| 378 | |
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| 379 | if (strncmp($val,"'",1) != 0 && substr($val,strlen($val)-1,1) != "'") { |
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| 380 | return $db->qstr($val); |
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| 381 | break; |
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| 382 | } |
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| 383 | default: |
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| 384 | return $val; |
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| 385 | break; |
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| 386 | } |
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| 387 | } |
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| 388 | |
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| 389 | // generate where clause for an UPDATE/SELECT |
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| 390 | function GenWhere(&$db, &$table) |
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| 391 | { |
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| 392 | $keys = $table->keys; |
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| 393 | $parr = array(); |
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| 394 | |
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| 395 | foreach($keys as $k) { |
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| 396 | $f = $table->flds[$k]; |
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| 397 | if ($f) { |
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| 398 | $parr[] = $k.' = '.$this->doquote($db,$this->$k,$db->MetaType($f->type)); |
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| 399 | } |
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| 400 | } |
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| 401 | return implode(' and ', $parr); |
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| 402 | } |
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| 403 | |
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| 404 | |
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| 405 | //------------------------------------------------------------ Public functions below |
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| 406 | |
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| 407 | function Load($where,$bindarr=false) |
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| 408 | { |
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| 409 | $db =& $this->DB(); if (!$db) return false; |
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| 410 | $this->_where = $where; |
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| 411 | |
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| 412 | $save = $db->SetFetchMode(ADODB_FETCH_NUM); |
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| 413 | $row = $db->GetRow("select * from ".$this->_table.' WHERE '.$where,$bindarr); |
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| 414 | $db->SetFetchMode($save); |
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| 415 | |
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| 416 | return $this->Set($row); |
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| 417 | } |
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| 418 | |
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| 419 | // false on error |
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| 420 | function Save() |
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| 421 | { |
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| 422 | if ($this->_saved) $ok = $this->Update(); |
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| 423 | else $ok = $this->Insert(); |
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| 424 | |
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| 425 | return $ok; |
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| 426 | } |
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| 427 | |
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| 428 | // false on error |
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| 429 | function Insert() |
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| 430 | { |
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| 431 | $db =& $this->DB(); if (!$db) return false; |
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| 432 | $cnt = 0; |
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| 433 | $table =& $this->TableInfo(); |
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| 434 | |
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| 435 | $valarr = array(); |
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| 436 | $names = array(); |
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| 437 | $valstr = array(); |
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| 438 | |
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| 439 | foreach($table->flds as $name=>$fld) { |
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| 440 | $val = $this->$name; |
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| 441 | if(!is_null($val) || !array_key_exists($name, $table->keys)) { |
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| 442 | $valarr[] = $val; |
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| 443 | $names[] = $name; |
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| 444 | $valstr[] = $db->Param($cnt); |
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| 445 | $cnt += 1; |
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| 446 | } |
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| 447 | } |
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| 448 | |
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| 449 | if (empty($names)){ |
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| 450 | foreach($table->flds as $name=>$fld) { |
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| 451 | $valarr[] = null; |
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| 452 | $names[] = $name; |
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| 453 | $valstr[] = $db->Param($cnt); |
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| 454 | $cnt += 1; |
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| 455 | } |
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| 456 | } |
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| 457 | $sql = 'INSERT INTO '.$this->_table."(".implode(',',$names).') VALUES ('.implode(',',$valstr).')'; |
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| 458 | $ok = $db->Execute($sql,$valarr); |
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| 459 | |
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| 460 | if ($ok) { |
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| 461 | $this->_saved = true; |
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| 462 | $autoinc = false; |
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| 463 | foreach($table->keys as $k) { |
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| 464 | if (is_null($this->$k)) { |
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| 465 | $autoinc = true; |
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| 466 | break; |
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| 467 | } |
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| 468 | } |
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| 469 | if ($autoinc && sizeof($table->keys) == 1) { |
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| 470 | $k = reset($table->keys); |
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| 471 | $this->$k = $this->LastInsertID($db,$k); |
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| 472 | } |
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| 473 | } |
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| 474 | |
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| 475 | $this->_original = $valarr; |
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| 476 | return !empty($ok); |
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| 477 | } |
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| 478 | |
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| 479 | function Delete() |
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| 480 | { |
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| 481 | $db =& $this->DB(); if (!$db) return false; |
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| 482 | $table =& $this->TableInfo(); |
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| 483 | |
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| 484 | $where = $this->GenWhere($db,$table); |
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| 485 | $sql = 'DELETE FROM '.$this->_table.' WHERE '.$where; |
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| 486 | $ok = $db->Execute($sql); |
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| 487 | |
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| 488 | return $ok ? true : false; |
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| 489 | } |
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| 490 | |
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| 491 | // returns an array of active record objects |
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| 492 | function &Find($whereOrderBy,$bindarr=false,$pkeysArr=false) |
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| 493 | { |
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| 494 | $db =& $this->DB(); if (!$db || empty($this->_table)) return false; |
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| 495 | $arr =& $db->GetActiveRecordsClass(get_class($this),$this->_table, $whereOrderBy,$bindarr,$pkeysArr); |
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| 496 | return $arr; |
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| 497 | } |
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| 498 | |
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| 499 | // returns 0 on error, 1 on update, 2 on insert |
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| 500 | function Replace() |
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| 501 | { |
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| 502 | global $ADODB_ASSOC_CASE; |
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| 503 | |
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| 504 | $db =& $this->DB(); if (!$db) return false; |
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| 505 | $table =& $this->TableInfo(); |
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| 506 | |
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| 507 | $pkey = $table->keys; |
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| 508 | |
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| 509 | foreach($table->flds as $name=>$fld) { |
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| 510 | $val = $this->$name; |
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| 511 | /* |
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| 512 | if (is_null($val)) { |
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| 513 | if (isset($fld->not_null) && $fld->not_null) { |
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| 514 | if (isset($fld->default_value) && strlen($fld->default_value)) continue; |
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| 515 | else { |
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| 516 | $this->Error("Cannot update null into $name","Replace"); |
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| 517 | return false; |
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| 518 | } |
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| 519 | } |
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| 520 | }*/ |
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| 521 | if (is_null($val) && !empty($fld->auto_increment)) { |
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| 522 | continue; |
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| 523 | } |
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| 524 | $t = $db->MetaType($fld->type); |
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| 525 | $arr[$name] = $this->doquote($db,$val,$t); |
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| 526 | $valarr[] = $val; |
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| 527 | } |
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| 528 | |
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| 529 | if (!is_array($pkey)) $pkey = array($pkey); |
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| 530 | |
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| 531 | |
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| 532 | if ($ADODB_ASSOC_CASE == 0) |
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| 533 | foreach($pkey as $k => $v) |
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| 534 | $pkey[$k] = strtolower($v); |
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| 535 | elseif ($ADODB_ASSOC_CASE == 0) |
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| 536 | foreach($pkey as $k => $v) |
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| 537 | $pkey[$k] = strtoupper($v); |
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| 538 | |
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| 539 | $ok = $db->Replace($this->_table,$arr,$pkey); |
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| 540 | if ($ok) { |
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| 541 | $this->_saved = true; // 1= update 2=insert |
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| 542 | if ($ok == 2) { |
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| 543 | $autoinc = false; |
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| 544 | foreach($table->keys as $k) { |
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| 545 | if (is_null($this->$k)) { |
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| 546 | $autoinc = true; |
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| 547 | break; |
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| 548 | } |
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| 549 | } |
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| 550 | if ($autoinc && sizeof($table->keys) == 1) { |
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| 551 | $k = reset($table->keys); |
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| 552 | $this->$k = $this->LastInsertID($db,$k); |
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| 553 | } |
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| 554 | } |
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| 555 | |
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| 556 | $this->_original =& $valarr; |
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| 557 | } |
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| 558 | return $ok; |
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| 559 | } |
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| 560 | |
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| 561 | // returns 0 on error, 1 on update, -1 if no change in data (no update) |
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| 562 | function Update() |
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| 563 | { |
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| 564 | $db =& $this->DB(); if (!$db) return false; |
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| 565 | $table =& $this->TableInfo(); |
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| 566 | |
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| 567 | $where = $this->GenWhere($db, $table); |
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| 568 | |
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| 569 | if (!$where) { |
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| 570 | $this->error("Where missing for table $table", "Update"); |
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| 571 | return false; |
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| 572 | } |
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| 573 | $valarr = array(); |
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| 574 | $neworig = array(); |
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| 575 | $pairs = array(); |
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| 576 | $i = -1; |
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| 577 | $cnt = 0; |
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| 578 | foreach($table->flds as $name=>$fld) { |
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| 579 | $i += 1; |
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| 580 | $val = $this->$name; |
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| 581 | $neworig[] = $val; |
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| 582 | |
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| 583 | if (isset($table->keys[$name])) { |
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| 584 | continue; |
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| 585 | } |
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| 586 | |
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| 587 | if (is_null($val)) { |
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| 588 | if (isset($fld->not_null) && $fld->not_null) { |
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| 589 | if (isset($fld->default_value) && strlen($fld->default_value)) continue; |
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| 590 | else { |
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| 591 | $this->Error("Cannot set field $name to NULL","Update"); |
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| 592 | return false; |
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| 593 | } |
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| 594 | } |
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| 595 | } |
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| 596 | |
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| 597 | if (isset($this->_original[$i]) && $val == $this->_original[$i]) { |
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| 598 | continue; |
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| 599 | } |
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| 600 | $valarr[] = $val; |
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| 601 | $pairs[] = $name.'='.$db->Param($cnt); |
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| 602 | $cnt += 1; |
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| 603 | } |
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| 604 | |
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| 605 | |
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| 606 | if (!$cnt) return -1; |
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| 607 | $sql = 'UPDATE '.$this->_table." SET ".implode(",",$pairs)." WHERE ".$where; |
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| 608 | $ok = $db->Execute($sql,$valarr); |
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| 609 | if ($ok) { |
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| 610 | $this->_original =& $neworig; |
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| 611 | return 1; |
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| 612 | } |
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| 613 | return 0; |
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| 614 | } |
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| 615 | |
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| 616 | function GetAttributeNames() |
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| 617 | { |
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| 618 | $table =& $this->TableInfo(); |
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| 619 | if (!$table) return false; |
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| 620 | return array_keys($table->flds); |
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| 621 | } |
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| 622 | |
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| 623 | }; |
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| 624 | |
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| 625 | ?> |
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