lib/adodb/drivers/adodb-odbc_mssql.inc.php

   1 <?php
   2 /*
   3 V4.94 23 Jan 2007  (c) 2000-2007 John Lim (jlim#natsoft.com.my). All rights reserved.
   4   Released under both BSD license and Lesser GPL library license.
   5   Whenever there is any discrepancy between the two licenses,
   6   the BSD license will take precedence.
   7 Set tabs to 4 for best viewing.
   8
   9   Latest version is available at http://adodb.sourceforge.net
  10
  11   MSSQL support via ODBC. Requires ODBC. Works on Windows and Unix.
  12   For Unix configuration, see http://phpbuilder.com/columns/alberto20000919.php3
  13 */
  14
  15 // security - hide paths
  16 if (!defined('ADODB_DIR')) die();
  17
  18 if (!defined('_ADODB_ODBC_LAYER')) {
  19         include(ADODB_DIR."/drivers/adodb-odbc.inc.php");
  20 }
  21
  22
  23 class  ADODB_odbc_mssql extends ADODB_odbc {
  24         var $databaseType = 'odbc_mssql';
  25         var $fmtDate = "'Y-m-d'";
  26         var $fmtTimeStamp = "'Y-m-d H:i:s'";
  27         var $_bindInputArray = true;
  28         var $metaTablesSQL="select name,case when type='U' then 'T' else 'V' end from sysobjects where (type='U' or type='V') and (name not in ('sysallocations','syscolumns','syscomments','sysdepends','sysfilegroups','sysfiles','sysfiles1','sysforeignkeys','sysfulltextcatalogs','sysindexes','sysindexkeys','sysmembers','sysobjects','syspermissions','sysprotects','sysreferences','systypes','sysusers','sysalternates','sysconstraints','syssegments','REFERENTIAL_CONSTRAINTS','CHECK_CONSTRAINTS','CONSTRAINT_TABLE_USAGE','CONSTRAINT_COLUMN_USAGE','VIEWS','VIEW_TABLE_USAGE','VIEW_COLUMN_USAGE','SCHEMATA','TABLES','TABLE_CONSTRAINTS','TABLE_PRIVILEGES','COLUMNS','COLUMN_DOMAIN_USAGE','COLUMN_PRIVILEGES','DOMAINS','DOMAIN_CONSTRAINTS','KEY_COLUMN_USAGE'))";
  29         var $metaColumnsSQL = "select c.name,t.name,c.length from syscolumns c join systypes t on t.xusertype=c.xusertype join sysobjects o on o.id=c.id where o.name='%s'";
  30         var $hasTop = 'top';            // support mssql/interbase SELECT TOP 10 * FROM TABLE
  31         var $sysDate = 'GetDate()';
  32         var $sysTimeStamp = 'GetDate()';
  33         var $leftOuter = '*=';
  34         var $rightOuter = '=*';
  35         var $substr = 'substring';
  36         var $length = 'len';
  37         var $ansiOuter = true; // for mssql7 or later
  38         var $identitySQL = 'select @@IDENTITY'; // 'select SCOPE_IDENTITY'; # for mssql 2000
  39         var $hasInsertID = true;
  40         var $connectStmt = 'SET CONCAT_NULL_YIELDS_NULL OFF'; # When SET CONCAT_NULL_YIELDS_NULL is ON,
  41                                                                                                                   # concatenating a null value with a string yields a NULL result
  42
  43         function ADODB_odbc_mssql()
  44         {
  45                 $this->ADODB_odbc();
  46                 //$this->curmode = SQL_CUR_USE_ODBC;
  47         }
  48
  49         // crashes php...
  50     //Note replaced by some different code to allow it to work properly
  51     //for Moode environmental checks
  52         function ServerInfo()
  53         {
  54                 $row = $this->GetRow("execute sp_server_info 2");
  55
  56                 $arr['description'] = $row['attribute_value'];
  57                 $arr['version'] = ADOConnection::_findvers($arr['description']);
  58                 return $arr;
  59         }
  60
  61         function IfNull( $field, $ifNull )
  62         {
  63                 return " ISNULL($field, $ifNull) "; // if MS SQL Server
  64         }
  65
  66         function _insertid()
  67         {
  68         // SCOPE_IDENTITY()
  69         // Returns the last IDENTITY value inserted into an IDENTITY column in
  70         // the same scope. A scope is a module -- a stored procedure, trigger,
  71         // function, or batch. Thus, two statements are in the same scope if
  72         // they are in the same stored procedure, function, or batch.
  73                         return $this->GetOne($this->identitySQL);
  74         }
  75
  76
  77         function MetaForeignKeys($table, $owner=false, $upper=false)
  78         {
  79         global $ADODB_FETCH_MODE;
  80
  81                 $save = $ADODB_FETCH_MODE;
  82                 $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
  83                 $table = $this->qstr(strtoupper($table));
  84
  85                 $sql =
  86 "select object_name(constid) as constraint_name,
  87         col_name(fkeyid, fkey) as column_name,
  88         object_name(rkeyid) as referenced_table_name,
  89         col_name(rkeyid, rkey) as referenced_column_name
  90 from sysforeignkeys
  91 where upper(object_name(fkeyid)) = $table
  92 order by constraint_name, referenced_table_name, keyno";
  93
  94                 $constraints =& $this->GetArray($sql);
  95
  96                 $ADODB_FETCH_MODE = $save;
  97
  98                 $arr = false;
  99                 foreach($constraints as $constr) {
 100                         //print_r($constr);
 101                         $arr[$constr[0]][$constr[2]][] = $constr[1].'='.$constr[3];
 102                 }
 103                 if (!$arr) return false;
 104
 105                 $arr2 = false;
 106
 107                 foreach($arr as $k => $v) {
 108                         foreach($v as $a => $b) {
 109                                 if ($upper) $a = strtoupper($a);
 110                                 $arr2[$a] = $b;
 111                         }
 112                 }
 113                 return $arr2;
 114         }
 115
 116         function &MetaTables($ttype=false,$showSchema=false,$mask=false)
 117         {
 118                 if ($mask) {$this->debug=1;
 119                         $save = $this->metaTablesSQL;
 120                         $mask = $this->qstr($mask);
 121                         $this->metaTablesSQL .= " AND name like $mask";
 122                 }
 123                 $ret =& ADOConnection::MetaTables($ttype,$showSchema);
 124
 125                 if ($mask) {
 126                         $this->metaTablesSQL = $save;
 127                 }
 128                 return $ret;
 129         }
 130
 131         function &MetaColumns($table)
 132         {
 133                 $arr = ADOConnection::MetaColumns($table);
 134                 return $arr;
 135         }
 136
 137
 138         function &MetaIndexes($table,$primary=false)
 139         {
 140                 $table = $this->qstr($table);
 141
 142                 $sql = "SELECT i.name AS ind_name, C.name AS col_name, USER_NAME(O.uid) AS Owner, c.colid, k.Keyno,
 143                         CASE WHEN I.indid BETWEEN 1 AND 254 AND (I.status & 2048 = 2048 OR I.Status = 16402 AND O.XType = 'V') THEN 1 ELSE 0 END AS IsPK,
 144                         CASE WHEN I.status & 2 = 2 THEN 1 ELSE 0 END AS IsUnique
 145                         FROM dbo.sysobjects o INNER JOIN dbo.sysindexes I ON o.id = i.id
 146                         INNER JOIN dbo.sysindexkeys K ON I.id = K.id AND I.Indid = K.Indid
 147                         INNER JOIN dbo.syscolumns c ON K.id = C.id AND K.colid = C.Colid
 148                         WHERE LEFT(i.name, 8) <> '_WA_Sys_' AND o.status >= 0 AND O.Name LIKE $table
 149                         ORDER BY O.name, I.Name, K.keyno";
 150
 151                 global $ADODB_FETCH_MODE;
 152                 $save = $ADODB_FETCH_MODE;
 153         $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
 154         if ($this->fetchMode !== FALSE) {
 155                 $savem = $this->SetFetchMode(FALSE);
 156         }
 157
 158         $rs = $this->Execute($sql);
 159         if (isset($savem)) {
 160                 $this->SetFetchMode($savem);
 161         }
 162         $ADODB_FETCH_MODE = $save;
 163
 164         if (!is_object($rs)) {
 165                 return FALSE;
 166         }
 167
 168                 $indexes = array();
 169                 while ($row = $rs->FetchRow()) {
 170                         if (!$primary && $row[5]) continue;
 171
 172             $indexes[$row[0]]['unique'] = $row[6];
 173             $indexes[$row[0]]['columns'][] = $row[1];
 174         }
 175         return $indexes;
 176         }
 177
 178         function _query($sql,$inputarr)
 179         {
 180                 if (is_string($sql)) $sql = str_replace('||','+',$sql);
 181                 return ADODB_odbc::_query($sql,$inputarr);
 182         }
 183
 184         function SetTransactionMode( $transaction_mode )
 185         {
 186                 $this->_transmode  = $transaction_mode;
 187                 if (empty($transaction_mode)) {
 188                         $this->Execute('SET TRANSACTION ISOLATION LEVEL READ COMMITTED');
 189                         return;
 190                 }
 191                 if (!stristr($transaction_mode,'isolation')) $transaction_mode = 'ISOLATION LEVEL '.$transaction_mode;
 192                 $this->Execute("SET TRANSACTION ".$transaction_mode);
 193         }
 194
 195         // "Stein-Aksel Basma" <basma@accelero.no>
 196         // tested with MSSQL 2000
 197         function &MetaPrimaryKeys($table)
 198         {
 199         global $ADODB_FETCH_MODE;
 200
 201                 $schema = '';
 202                 $this->_findschema($table,$schema);
 203                 //if (!$schema) $schema = $this->database;
 204                 if ($schema) $schema = "and k.table_catalog like '$schema%'";
 205
 206                 $sql = "select distinct k.column_name,ordinal_position from information_schema.key_column_usage k,
 207                 information_schema.table_constraints tc
 208                 where tc.constraint_name = k.constraint_name and tc.constraint_type =
 209                 'PRIMARY KEY' and k.table_name = '$table' $schema order by ordinal_position ";
 210
 211                 $savem = $ADODB_FETCH_MODE;
 212                 $ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;
 213                 $a = $this->GetCol($sql);
 214                 $ADODB_FETCH_MODE = $savem;
 215
 216                 if ($a && sizeof($a)>0) return $a;
 217                 $false = false;
 218                 return $false;
 219         }
 220
 221         function &SelectLimit($sql,$nrows=-1,$offset=-1, $inputarr=false,$secs2cache=0)
 222         {
 223                 if ($nrows > 0 && $offset <= 0) {
 224                         $sql = preg_replace(
 225                                 '/(^\s*select\s+(distinctrow|distinct)?)/i','\\1 '.$this->hasTop." $nrows ",$sql);
 226                         $rs =& $this->Execute($sql,$inputarr);
 227                 } else
 228                         $rs =& ADOConnection::SelectLimit($sql,$nrows,$offset,$inputarr,$secs2cache);
 229
 230                 return $rs;
 231         }
 232
 233         // Format date column in sql string given an input format that understands Y M D
 234         function SQLDate($fmt, $col=false)
 235         {
 236                 if (!$col) $col = $this->sysTimeStamp;
 237                 $s = '';
 238
 239                 $len = strlen($fmt);
 240                 for ($i=0; $i < $len; $i++) {
 241                         if ($s) $s .= '+';
 242                         $ch = $fmt[$i];
 243                         switch($ch) {
 244                         case 'Y':
 245                         case 'y':
 246                                 $s .= "datename(yyyy,$col)";
 247                                 break;
 248                         case 'M':
 249                                 $s .= "convert(char(3),$col,0)";
 250                                 break;
 251                         case 'm':
 252                                 $s .= "replace(str(month($col),2),' ','0')";
 253                                 break;
 254                         case 'Q':
 255                         case 'q':
 256                                 $s .= "datename(quarter,$col)";
 257                                 break;
 258                         case 'D':
 259                         case 'd':
 260                                 $s .= "replace(str(day($col),2),' ','0')";
 261                                 break;
 262                         case 'h':
 263                                 $s .= "substring(convert(char(14),$col,0),13,2)";
 264                                 break;
 265
 266                         case 'H':
 267                                 $s .= "replace(str(datepart(hh,$col),2),' ','0')";
 268                                 break;
 269
 270                         case 'i':
 271                                 $s .= "replace(str(datepart(mi,$col),2),' ','0')";
 272                                 break;
 273                         case 's':
 274                                 $s .= "replace(str(datepart(ss,$col),2),' ','0')";
 275                                 break;
 276                         case 'a':
 277                         case 'A':
 278                                 $s .= "substring(convert(char(19),$col,0),18,2)";
 279                                 break;
 280
 281                         default:
 282                                 if ($ch == '\\') {
 283                                         $i++;
 284                                         $ch = substr($fmt,$i,1);
 285                                 }
 286                                 $s .= $this->qstr($ch);
 287                                 break;
 288                         }
 289                 }
 290                 return $s;
 291         }
 292
 293 }
 294
 295 class  ADORecordSet_odbc_mssql extends ADORecordSet_odbc {
 296
 297         var $databaseType = 'odbc_mssql';
 298
 299         function ADORecordSet_odbc_mssql($id,$mode=false)
 300         {
 301                 return $this->ADORecordSet_odbc($id,$mode);
 302         }
 303 }
 304 ?>