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File: adodb/drivers/adodb-ado_mssql.inc.php

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File: adodb/drivers/adodb-ado_mssql.inc.php
Role: Auxiliary script
Content type: text/plain
Description: Auxiliary script
Class: PHP MySQL JSON Manager
Build and Execute SQL queries with results in JSON
Author: By
Last change:
Date: 8 years ago
Size: 4,450 bytes
 

Contents

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<?php
/*
V5.18 3 Sep 2012 (c) 2000-2012 John Lim (jlim#natsoft.com). All rights reserved.
  Released under both BSD license and Lesser GPL library license.
  Whenever there is any discrepancy between the two licenses,
  the BSD license will take precedence.
Set tabs to 4 for best viewing.
 
  Latest version is available at http://adodb.sourceforge.net
 
  Microsoft SQL Server ADO data driver. Requires ADO and MSSQL client.
  Works only on MS Windows.
 
  Warning: Some versions of PHP (esp PHP4) leak memory when ADO/COM is used.
  Please check http://bugs.php.net/ for more info.
*/

// security - hide paths
if (!defined('ADODB_DIR')) die();

if (!
defined('_ADODB_ADO_LAYER')) {
    if (
PHP_VERSION >= 5) include(ADODB_DIR."/drivers/adodb-ado5.inc.php");
    else include(
ADODB_DIR."/drivers/adodb-ado.inc.php");
}


class
ADODB_ado_mssql extends ADODB_ado {
    var
$databaseType = 'ado_mssql';
    var
$hasTop = 'top';
    var
$hasInsertID = true;
    var
$sysDate = 'convert(datetime,convert(char,GetDate(),102),102)';
    var
$sysTimeStamp = 'GetDate()';
    var
$leftOuter = '*=';
    var
$rightOuter = '=*';
    var
$ansiOuter = true; // for mssql7 or later
   
var $substr = "substring";
    var
$length = 'len';
    var
$_dropSeqSQL = "drop table %s";
   
   
//var $_inTransaction = 1; // always open recordsets, so no transaction problems.
   
   
function ADODB_ado_mssql()
    {
           
$this->ADODB_ado();
    }
   
    function
_insertid()
    {
            return
$this->GetOne('select SCOPE_IDENTITY()');
    }
   
    function
_affectedrows()
    {
            return
$this->GetOne('select @@rowcount');
    }
   
    function
SetTransactionMode( $transaction_mode )
    {
       
$this->_transmode = $transaction_mode;
        if (empty(
$transaction_mode)) {
           
$this->Execute('SET TRANSACTION ISOLATION LEVEL READ COMMITTED');
            return;
        }
        if (!
stristr($transaction_mode,'isolation')) $transaction_mode = 'ISOLATION LEVEL '.$transaction_mode;
       
$this->Execute("SET TRANSACTION ".$transaction_mode);
    }
   
    function
qstr($s,$magic_quotes=false)
    {
       
$s = ADOConnection::qstr($s, $magic_quotes);
        return
str_replace("\0", "\\\\000", $s);
    }
   
    function
MetaColumns($table, $normalize=true)
    {
       
$table = strtoupper($table);
       
$arr= array();
       
$dbc = $this->_connectionID;
       
       
$osoptions = array();
       
$osoptions[0] = null;
       
$osoptions[1] = null;
       
$osoptions[2] = $table;
       
$osoptions[3] = null;
       
       
$adors=@$dbc->OpenSchema(4, $osoptions);//tables

       
if ($adors){
                while (!
$adors->EOF){
                       
$fld = new ADOFieldObject();
                       
$c = $adors->Fields(3);
                       
$fld->name = $c->Value;
                       
$fld->type = 'CHAR'; // cannot discover type in ADO!
                       
$fld->max_length = -1;
                       
$arr[strtoupper($fld->name)]=$fld;
       
                       
$adors->MoveNext();
                }
               
$adors->Close();
        }
       
$false = false;
        return empty(
$arr) ? $false : $arr;
    }
   
    function
CreateSequence($seq='adodbseq',$start=1)
    {
       
       
$this->Execute('BEGIN TRANSACTION adodbseq');
       
$start -= 1;
       
$this->Execute("create table $seq (id float(53))");
       
$ok = $this->Execute("insert into $seq with (tablock,holdlock) values($start)");
        if (!
$ok) {
               
$this->Execute('ROLLBACK TRANSACTION adodbseq');
                return
false;
        }
       
$this->Execute('COMMIT TRANSACTION adodbseq');
        return
true;
    }

    function
GenID($seq='adodbseq',$start=1)
    {
       
//$this->debug=1;
       
$this->Execute('BEGIN TRANSACTION adodbseq');
       
$ok = $this->Execute("update $seq with (tablock,holdlock) set id = id + 1");
        if (!
$ok) {
           
$this->Execute("create table $seq (id float(53))");
           
$ok = $this->Execute("insert into $seq with (tablock,holdlock) values($start)");
            if (!
$ok) {
               
$this->Execute('ROLLBACK TRANSACTION adodbseq');
                return
false;
            }
           
$this->Execute('COMMIT TRANSACTION adodbseq');
            return
$start;
        }
       
$num = $this->GetOne("select id from $seq");
       
$this->Execute('COMMIT TRANSACTION adodbseq');
        return
$num;
       
       
// in old implementation, pre 1.90, we returned GUID...
        //return $this->GetOne("SELECT CONVERT(varchar(255), NEWID()) AS 'Char'");
   
}
   
    }
// end class
   
   
class ADORecordSet_ado_mssql extends ADORecordSet_ado {
   
    var
$databaseType = 'ado_mssql';
   
    function
ADORecordSet_ado_mssql($id,$mode=false)
    {
            return
$this->ADORecordSet_ado($id,$mode);
    }
}
?>