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Source: /admin/includes/php/adodb/drivers/adodb-odbc_mssql.inc.php - 306 lines - 9232 bytes - Summary - Text - Print

   1  <?php
   2  /* 
   3  V4.98 13 Feb 2008  (c) 2000-2008 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 SCOPE_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  	function ServerInfo()
  51      {
  52      global $ADODB_FETCH_MODE;
  53          $save = $ADODB_FETCH_MODE;
  54          $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
  55          $row = $this->GetRow("execute sp_server_info 2");
  56          $ADODB_FETCH_MODE = $save;
  57          if (!is_array($row)) return false;
  58          $arr['description'] = $row[2];
  59          $arr['version'] = ADOConnection::_findvers($arr['description']);
  60          return $arr;
  61      }
  62  
  63  	function IfNull( $field, $ifNull ) 
  64      {
  65          return " ISNULL($field, $ifNull) "; // if MS SQL Server
  66      }
  67      
  68  	function _insertid()
  69      {
  70      // SCOPE_IDENTITY()
  71      // Returns the last IDENTITY value inserted into an IDENTITY column in 
  72      // the same scope. A scope is a module -- a stored procedure, trigger, 
  73      // function, or batch. Thus, two statements are in the same scope if 
  74      // they are in the same stored procedure, function, or batch.
  75              return $this->GetOne($this->identitySQL);
  76      }
  77      
  78      
  79  	function MetaForeignKeys($table, $owner=false, $upper=false)
  80      {
  81      global $ADODB_FETCH_MODE;
  82      
  83          $save = $ADODB_FETCH_MODE;
  84          $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
  85          $table = $this->qstr(strtoupper($table));
  86          
  87          $sql = 
  88  "select object_name(constid) as constraint_name,
  89      col_name(fkeyid, fkey) as column_name,
  90      object_name(rkeyid) as referenced_table_name,
  91         col_name(rkeyid, rkey) as referenced_column_name
  92  from sysforeignkeys
  93  where upper(object_name(fkeyid)) = $table
  94  order by constraint_name, referenced_table_name, keyno";
  95          
  96          $constraints =& $this->GetArray($sql);
  97          
  98          $ADODB_FETCH_MODE = $save;
  99          
 100          $arr = false;
 101          foreach($constraints as $constr) {
 102              //print_r($constr);
 103              $arr[$constr[0]][$constr[2]][] = $constr[1].'='.$constr[3]; 
 104          }
 105          if (!$arr) return false;
 106          
 107          $arr2 = false;
 108          
 109          foreach($arr as $k => $v) {
 110              foreach($v as $a => $b) {
 111                  if ($upper) $a = strtoupper($a);
 112                  $arr2[$a] = $b;
 113              }
 114          }
 115          return $arr2;
 116      }
 117      
 118      function &MetaTables($ttype=false,$showSchema=false,$mask=false) 
 119      {
 120          if ($mask) {$this->debug=1;
 121              $save = $this->metaTablesSQL;
 122              $mask = $this->qstr($mask);
 123              $this->metaTablesSQL .= " AND name like $mask";
 124          }
 125          $ret =& ADOConnection::MetaTables($ttype,$showSchema);
 126          
 127          if ($mask) {
 128              $this->metaTablesSQL = $save;
 129          }
 130          return $ret;
 131      }
 132      
 133      function &MetaColumns($table)
 134      {
 135          $arr = ADOConnection::MetaColumns($table);
 136          return $arr;
 137      }
 138      
 139      
 140      function &MetaIndexes($table,$primary=false)
 141      {
 142          $table = $this->qstr($table);
 143  
 144          $sql = "SELECT i.name AS ind_name, C.name AS col_name, USER_NAME(O.uid) AS Owner, c.colid, k.Keyno, 
 145              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,
 146              CASE WHEN I.status & 2 = 2 THEN 1 ELSE 0 END AS IsUnique
 147              FROM dbo.sysobjects o INNER JOIN dbo.sysindexes I ON o.id = i.id 
 148              INNER JOIN dbo.sysindexkeys K ON I.id = K.id AND I.Indid = K.Indid 
 149              INNER JOIN dbo.syscolumns c ON K.id = C.id AND K.colid = C.Colid
 150              WHERE LEFT(i.name, 8) <> '_WA_Sys_' AND o.status >= 0 AND O.Name LIKE $table
 151              ORDER BY O.name, I.Name, K.keyno";
 152  
 153          global $ADODB_FETCH_MODE;
 154          $save = $ADODB_FETCH_MODE;
 155          $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
 156          if ($this->fetchMode !== FALSE) {
 157              $savem = $this->SetFetchMode(FALSE);
 158          }
 159          
 160          $rs = $this->Execute($sql);
 161          if (isset($savem)) {
 162              $this->SetFetchMode($savem);
 163          }
 164          $ADODB_FETCH_MODE = $save;
 165  
 166          if (!is_object($rs)) {
 167              return FALSE;
 168          }
 169  
 170          $indexes = array();
 171          while ($row = $rs->FetchRow()) {
 172              if (!$primary && $row[5]) continue;
 173              
 174              $indexes[$row[0]]['unique'] = $row[6];
 175              $indexes[$row[0]]['columns'][] = $row[1];
 176          }
 177          return $indexes;
 178      }
 179      
 180  	function _query($sql,$inputarr)
 181      {
 182          if (is_string($sql)) $sql = str_replace('||','+',$sql);
 183          return ADODB_odbc::_query($sql,$inputarr);
 184      }
 185      
 186  	function SetTransactionMode( $transaction_mode ) 
 187      {
 188          $this->_transmode  = $transaction_mode;
 189          if (empty($transaction_mode)) {
 190              $this->Execute('SET TRANSACTION ISOLATION LEVEL READ COMMITTED');
 191              return;
 192          }
 193          if (!stristr($transaction_mode,'isolation')) $transaction_mode = 'ISOLATION LEVEL '.$transaction_mode;
 194          $this->Execute("SET TRANSACTION ".$transaction_mode);
 195      }
 196      
 197      // "Stein-Aksel Basma" <basma@accelero.no>
 198      // tested with MSSQL 2000
 199      function &MetaPrimaryKeys($table)
 200      {
 201      global $ADODB_FETCH_MODE;
 202      
 203          $schema = '';
 204          $this->_findschema($table,$schema);
 205          //if (!$schema) $schema = $this->database;
 206          if ($schema) $schema = "and k.table_catalog like '$schema%'"; 
 207      
 208          $sql = "select distinct k.column_name,ordinal_position from information_schema.key_column_usage k,
 209          information_schema.table_constraints tc 
 210          where tc.constraint_name = k.constraint_name and tc.constraint_type =
 211          'PRIMARY KEY' and k.table_name = '$table' $schema order by ordinal_position ";
 212          
 213          $savem = $ADODB_FETCH_MODE;
 214          $ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;
 215          $a = $this->GetCol($sql);
 216          $ADODB_FETCH_MODE = $savem;
 217          
 218          if ($a && sizeof($a)>0) return $a;
 219          $false = false;
 220          return $false;      
 221      }
 222      
 223      function &SelectLimit($sql,$nrows=-1,$offset=-1, $inputarr=false,$secs2cache=0)
 224      {
 225          if ($nrows > 0 && $offset <= 0) {
 226              $sql = preg_replace(
 227                  '/(^\s*select\s+(distinctrow|distinct)?)/i','\\1 '.$this->hasTop." $nrows ",$sql);
 228              $rs =& $this->Execute($sql,$inputarr);
 229          } else
 230              $rs =& ADOConnection::SelectLimit($sql,$nrows,$offset,$inputarr,$secs2cache);
 231              
 232          return $rs;
 233      }
 234      
 235      // Format date column in sql string given an input format that understands Y M D
 236  	function SQLDate($fmt, $col=false)
 237      {    
 238          if (!$col) $col = $this->sysTimeStamp;
 239          $s = '';
 240          
 241          $len = strlen($fmt);
 242          for ($i=0; $i < $len; $i++) {
 243              if ($s) $s .= '+';
 244              $ch = $fmt[$i];
 245              switch($ch) {
 246              case 'Y':
 247              case 'y':
 248                  $s .= "datename(yyyy,$col)";
 249                  break;
 250              case 'M':
 251                  $s .= "convert(char(3),$col,0)";
 252                  break;
 253              case 'm':
 254                  $s .= "replace(str(month($col),2),' ','0')";
 255                  break;
 256              case 'Q':
 257              case 'q':
 258                  $s .= "datename(quarter,$col)";
 259                  break;
 260              case 'D':
 261              case 'd':
 262                  $s .= "replace(str(day($col),2),' ','0')";
 263                  break;
 264              case 'h':
 265                  $s .= "substring(convert(char(14),$col,0),13,2)";
 266                  break;
 267              
 268              case 'H':
 269                  $s .= "replace(str(datepart(hh,$col),2),' ','0')";
 270                  break;
 271                  
 272              case 'i':
 273                  $s .= "replace(str(datepart(mi,$col),2),' ','0')";
 274                  break;
 275              case 's':
 276                  $s .= "replace(str(datepart(ss,$col),2),' ','0')";
 277                  break;
 278              case 'a':
 279              case 'A':
 280                  $s .= "substring(convert(char(19),$col,0),18,2)";
 281                  break;
 282                  
 283              default:
 284                  if ($ch == '\\') {
 285                      $i++;
 286                      $ch = substr($fmt,$i,1);
 287                  }
 288                  $s .= $this->qstr($ch);
 289                  break;
 290              }
 291          }
 292          return $s;
 293      }
 294  
 295  } 
 296   
 297  class  ADORecordSet_odbc_mssql extends ADORecordSet_odbc {    
 298      
 299      var $databaseType = 'odbc_mssql';
 300      
 301  	function ADORecordSet_odbc_mssql($id,$mode=false)
 302      {
 303          return $this->ADORecordSet_odbc($id,$mode);
 304      }    
 305  }
 306  ?>

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