1 | <?php |
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2 | /* |
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3 | V4.94 23 Jan 2007 (c) 2000-2007 John Lim (jlim#natsoft.com.my). All rights reserved. |
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4 | Released under both BSD license and Lesser GPL library license. |
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5 | Whenever there is any discrepancy between the two licenses, |
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6 | the BSD license will take precedence. |
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7 | Set tabs to 4 for best viewing. |
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8 | |
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9 | Latest version is available at http://adodb.sourceforge.net |
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10 | |
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11 | Microsoft SQL Server ADO data driver. Requires ADO and MSSQL client. |
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12 | Works only on MS Windows. |
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13 | |
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14 | Warning: Some versions of PHP (esp PHP4) leak memory when ADO/COM is used. |
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15 | Please check http://bugs.php.net/ for more info. |
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16 | */ |
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17 | |
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18 | // security - hide paths |
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19 | if (!defined('ADODB_DIR')) die(); |
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20 | |
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21 | if (!defined('_ADODB_ADO_LAYER')) { |
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22 | if (PHP_VERSION >= 5) include(ADODB_DIR."/drivers/adodb-ado5.inc.php"); |
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23 | else include(ADODB_DIR."/drivers/adodb-ado.inc.php"); |
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24 | } |
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25 | |
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26 | |
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27 | class ADODB_ado_mssql extends ADODB_ado { |
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28 | var $databaseType = 'ado_mssql'; |
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29 | var $hasTop = 'top'; |
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30 | var $hasInsertID = true; |
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31 | var $sysDate = 'convert(datetime,convert(char,GetDate(),102),102)'; |
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32 | var $sysTimeStamp = 'GetDate()'; |
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33 | var $leftOuter = '*='; |
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34 | var $rightOuter = '=*'; |
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35 | var $ansiOuter = true; // for mssql7 or later |
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36 | var $substr = "substring"; |
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37 | var $length = 'len'; |
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38 | var $_dropSeqSQL = "drop table %s"; |
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39 | |
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40 | //var $_inTransaction = 1; // always open recordsets, so no transaction problems. |
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41 | |
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42 | function ADODB_ado_mssql() |
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43 | { |
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44 | $this->ADODB_ado(); |
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45 | } |
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46 | |
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47 | function _insertid() |
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48 | { |
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49 | return $this->GetOne('select @@identity'); |
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50 | } |
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51 | |
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52 | function _affectedrows() |
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53 | { |
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54 | return $this->GetOne('select @@rowcount'); |
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55 | } |
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56 | |
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57 | function SetTransactionMode( $transaction_mode ) |
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58 | { |
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59 | $this->_transmode = $transaction_mode; |
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60 | if (empty($transaction_mode)) { |
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61 | $this->Execute('SET TRANSACTION ISOLATION LEVEL READ COMMITTED'); |
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62 | return; |
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63 | } |
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64 | if (!stristr($transaction_mode,'isolation')) $transaction_mode = 'ISOLATION LEVEL '.$transaction_mode; |
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65 | $this->Execute("SET TRANSACTION ".$transaction_mode); |
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66 | } |
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67 | |
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68 | function qstr($s,$magic_quotes=false) |
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69 | { |
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70 | $s = ADOConnection::qstr($s, $magic_quotes); |
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71 | return str_replace("\0", "\\\\000", $s); |
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72 | } |
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73 | |
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74 | function MetaColumns($table) |
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75 | { |
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76 | $table = strtoupper($table); |
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77 | $arr= array(); |
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78 | $dbc = $this->_connectionID; |
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79 | |
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80 | $osoptions = array(); |
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81 | $osoptions[0] = null; |
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82 | $osoptions[1] = null; |
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83 | $osoptions[2] = $table; |
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84 | $osoptions[3] = null; |
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85 | |
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86 | $adors=@$dbc->OpenSchema(4, $osoptions);//tables |
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87 | |
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88 | if ($adors){ |
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89 | while (!$adors->EOF){ |
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90 | $fld = new ADOFieldObject(); |
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91 | $c = $adors->Fields(3); |
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92 | $fld->name = $c->Value; |
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93 | $fld->type = 'CHAR'; // cannot discover type in ADO! |
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94 | $fld->max_length = -1; |
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95 | $arr[strtoupper($fld->name)]=$fld; |
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96 | |
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97 | $adors->MoveNext(); |
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98 | } |
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99 | $adors->Close(); |
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100 | } |
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101 | $false = false; |
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102 | return empty($arr) ? $false : $arr; |
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103 | } |
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104 | |
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105 | function CreateSequence($seq='adodbseq',$start=1) |
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106 | { |
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107 | |
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108 | $this->Execute('BEGIN TRANSACTION adodbseq'); |
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109 | $start -= 1; |
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110 | $this->Execute("create table $seq (id float(53))"); |
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111 | $ok = $this->Execute("insert into $seq with (tablock,holdlock) values($start)"); |
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112 | if (!$ok) { |
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113 | $this->Execute('ROLLBACK TRANSACTION adodbseq'); |
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114 | return false; |
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115 | } |
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116 | $this->Execute('COMMIT TRANSACTION adodbseq'); |
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117 | return true; |
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118 | } |
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119 | |
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120 | function GenID($seq='adodbseq',$start=1) |
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121 | { |
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122 | //$this->debug=1; |
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123 | $this->Execute('BEGIN TRANSACTION adodbseq'); |
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124 | $ok = $this->Execute("update $seq with (tablock,holdlock) set id = id + 1"); |
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125 | if (!$ok) { |
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126 | $this->Execute("create table $seq (id float(53))"); |
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127 | $ok = $this->Execute("insert into $seq with (tablock,holdlock) values($start)"); |
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128 | if (!$ok) { |
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129 | $this->Execute('ROLLBACK TRANSACTION adodbseq'); |
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130 | return false; |
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131 | } |
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132 | $this->Execute('COMMIT TRANSACTION adodbseq'); |
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133 | return $start; |
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134 | } |
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135 | $num = $this->GetOne("select id from $seq"); |
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136 | $this->Execute('COMMIT TRANSACTION adodbseq'); |
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137 | return $num; |
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138 | |
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139 | // in old implementation, pre 1.90, we returned GUID... |
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140 | //return $this->GetOne("SELECT CONVERT(varchar(255), NEWID()) AS 'Char'"); |
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141 | } |
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142 | |
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143 | } // end class |
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144 | |
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145 | class ADORecordSet_ado_mssql extends ADORecordSet_ado { |
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146 | |
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147 | var $databaseType = 'ado_mssql'; |
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148 | |
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149 | function ADORecordSet_ado_mssql($id,$mode=false) |
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150 | { |
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151 | return $this->ADORecordSet_ado($id,$mode); |
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152 | } |
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153 | } |
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154 | ?> |
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