1 | <?php |
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2 | /* |
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3 | V4.94 23 Jan 2007 (c) 2006 John Lim (jlim#natsoft.com.my). All rights reserved. |
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4 | |
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5 | This is a version of the ADODB driver for DB2. It uses the 'ibm_db2' PECL extension |
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6 | for PHP (http://pecl.php.net/package/ibm_db2), which in turn requires DB2 V8.2.2 or |
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7 | higher. |
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8 | |
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9 | Originally tested with PHP 5.1.1 and Apache 2.0.55 on Windows XP SP2. |
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10 | More recently tested with PHP 5.1.2 and Apache 2.0.55 on Windows XP SP2. |
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11 | |
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12 | This file was ported from "adodb-odbc.inc.php" by Larry Menard, "larry.menard#rogers.com". |
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13 | I ripped out what I believed to be a lot of redundant or obsolete code, but there are |
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14 | probably still some remnants of the ODBC support in this file; I'm relying on reviewers |
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15 | of this code to point out any other things that can be removed. |
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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 | define("_ADODB_DB2_LAYER", 2 ); |
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22 | |
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23 | /*-------------------------------------------------------------------------------------- |
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24 | --------------------------------------------------------------------------------------*/ |
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25 | |
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26 | |
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27 | class ADODB_db2 extends ADOConnection { |
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28 | var $databaseType = "db2"; |
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29 | var $fmtDate = "'Y-m-d'"; |
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30 | var $concat_operator = '||'; |
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31 | |
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32 | var $sysTime = 'CURRENT TIME'; |
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33 | var $sysDate = 'CURRENT DATE'; |
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34 | var $sysTimeStamp = 'CURRENT TIMESTAMP'; |
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35 | |
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36 | var $fmtTimeStamp = "'Y-m-d-H:i:s'"; |
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37 | var $replaceQuote = "''"; // string to use to replace quotes |
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38 | var $dataProvider = "db2"; |
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39 | var $hasAffectedRows = true; |
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40 | |
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41 | var $binmode = DB2_BINARY; |
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42 | |
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43 | var $useFetchArray = false; // setting this to true will make array elements in FETCH_ASSOC mode case-sensitive |
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44 | // breaking backward-compat |
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45 | var $_bindInputArray = false; |
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46 | var $_genIDSQL = "VALUES NEXTVAL FOR %s"; |
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47 | var $_genSeqSQL = "CREATE SEQUENCE %s START WITH 1 NO MAXVALUE NO CYCLE"; |
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48 | var $_dropSeqSQL = "DROP SEQUENCE %s"; |
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49 | var $_autocommit = true; |
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50 | var $_haserrorfunctions = true; |
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51 | var $_lastAffectedRows = 0; |
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52 | var $uCaseTables = true; // for meta* functions, uppercase table names |
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53 | var $hasInsertID = true; |
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54 | |
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55 | function _insertid() |
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56 | { |
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57 | return ADOConnection::GetOne('VALUES IDENTITY_VAL_LOCAL()'); |
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58 | } |
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59 | |
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60 | function ADODB_db2() |
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61 | { |
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62 | $this->_haserrorfunctions = ADODB_PHPVER >= 0x4050; |
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63 | } |
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64 | |
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65 | // returns true or false |
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66 | function _connect($argDSN, $argUsername, $argPassword, $argDatabasename) |
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67 | { |
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68 | global $php_errormsg; |
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69 | |
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70 | if (!function_exists('db2_connect')) { |
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71 | ADOConnection::outp("Warning: The old ODBC based DB2 driver has been renamed 'odbc_db2'. This ADOdb driver calls PHP's native db2 extension."); |
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72 | return null; |
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73 | } |
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74 | // This needs to be set before the connect(). |
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75 | // Replaces the odbc_binmode() call that was in Execute() |
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76 | ini_set('ibm_db2.binmode', $this->binmode); |
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77 | |
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78 | if ($argDatabasename) { |
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79 | $this->_connectionID = db2_connect($argDatabasename,$argUsername,$argPassword); |
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80 | } else { |
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81 | $this->_connectionID = db2_connect($argDSN,$argUsername,$argPassword); |
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82 | } |
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83 | if (isset($php_errormsg)) $php_errormsg = ''; |
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84 | |
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85 | // For db2_connect(), there is an optional 4th arg. If present, it must be |
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86 | // an array of valid options. So far, we don't use them. |
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87 | |
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88 | $this->_errorMsg = @db2_conn_errormsg(); |
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89 | |
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90 | if (isset($this->connectStmt)) $this->Execute($this->connectStmt); |
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91 | |
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92 | return $this->_connectionID != false; |
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93 | } |
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94 | |
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95 | // returns true or false |
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96 | function _pconnect($argDSN, $argUsername, $argPassword, $argDatabasename) |
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97 | { |
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98 | global $php_errormsg; |
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99 | |
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100 | if (!function_exists('db2_connect')) return null; |
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101 | |
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102 | // This needs to be set before the connect(). |
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103 | // Replaces the odbc_binmode() call that was in Execute() |
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104 | ini_set('ibm_db2.binmode', $this->binmode); |
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105 | |
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106 | if (isset($php_errormsg)) $php_errormsg = ''; |
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107 | $this->_errorMsg = isset($php_errormsg) ? $php_errormsg : ''; |
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108 | |
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109 | if ($argDatabasename) { |
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110 | $this->_connectionID = db2_pconnect($argDatabasename,$argUsername,$argPassword); |
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111 | } else { |
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112 | $this->_connectionID = db2_pconnect($argDSN,$argUsername,$argPassword); |
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113 | } |
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114 | if (isset($php_errormsg)) $php_errormsg = ''; |
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115 | |
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116 | $this->_errorMsg = @db2_conn_errormsg(); |
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117 | if ($this->_connectionID && $this->autoRollback) @db2_rollback($this->_connectionID); |
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118 | if (isset($this->connectStmt)) $this->Execute($this->connectStmt); |
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119 | |
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120 | return $this->_connectionID != false; |
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121 | } |
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122 | |
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123 | // format and return date string in database timestamp format |
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124 | function DBTimeStamp($ts) |
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125 | { |
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126 | if (empty($ts) && $ts !== 0) return 'null'; |
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127 | if (is_string($ts)) $ts = ADORecordSet::UnixTimeStamp($ts); |
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128 | return 'TO_DATE('.adodb_date($this->fmtTimeStamp,$ts).",'YYYY-MM-DD HH24:MI:SS')"; |
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129 | } |
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130 | |
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131 | // Format date column in sql string given an input format that understands Y M D |
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132 | function SQLDate($fmt, $col=false) |
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133 | { |
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134 | // use right() and replace() ? |
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135 | if (!$col) $col = $this->sysDate; |
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136 | |
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137 | /* use TO_CHAR() if $fmt is TO_CHAR() allowed fmt */ |
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138 | if ($fmt== 'Y-m-d H:i:s') |
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139 | return 'TO_CHAR('.$col.", 'YYYY-MM-DD HH24:MI:SS')"; |
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140 | |
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141 | $s = ''; |
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142 | |
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143 | $len = strlen($fmt); |
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144 | for ($i=0; $i < $len; $i++) { |
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145 | if ($s) $s .= $this->concat_operator; |
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146 | $ch = $fmt[$i]; |
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147 | switch($ch) { |
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148 | case 'Y': |
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149 | case 'y': |
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150 | if ($len==1) return "year($col)"; |
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151 | $s .= "char(year($col))"; |
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152 | break; |
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153 | case 'M': |
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154 | if ($len==1) return "monthname($col)"; |
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155 | $s .= "substr(monthname($col),1,3)"; |
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156 | break; |
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157 | case 'm': |
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158 | if ($len==1) return "month($col)"; |
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159 | $s .= "right(digits(month($col)),2)"; |
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160 | break; |
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161 | case 'D': |
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162 | case 'd': |
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163 | if ($len==1) return "day($col)"; |
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164 | $s .= "right(digits(day($col)),2)"; |
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165 | break; |
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166 | case 'H': |
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167 | case 'h': |
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168 | if ($len==1) return "hour($col)"; |
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169 | if ($col != $this->sysDate) $s .= "right(digits(hour($col)),2)"; |
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170 | else $s .= "''"; |
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171 | break; |
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172 | case 'i': |
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173 | case 'I': |
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174 | if ($len==1) return "minute($col)"; |
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175 | if ($col != $this->sysDate) |
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176 | $s .= "right(digits(minute($col)),2)"; |
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177 | else $s .= "''"; |
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178 | break; |
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179 | case 'S': |
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180 | case 's': |
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181 | if ($len==1) return "second($col)"; |
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182 | if ($col != $this->sysDate) |
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183 | $s .= "right(digits(second($col)),2)"; |
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184 | else $s .= "''"; |
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185 | break; |
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186 | default: |
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187 | if ($ch == '\\') { |
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188 | $i++; |
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189 | $ch = substr($fmt,$i,1); |
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190 | } |
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191 | $s .= $this->qstr($ch); |
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192 | } |
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193 | } |
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194 | return $s; |
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195 | } |
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196 | |
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197 | |
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198 | function ServerInfo() |
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199 | { |
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200 | |
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201 | if (!empty($this->host) && ADODB_PHPVER >= 0x4300) { |
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202 | $dsn = strtoupper($this->host); |
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203 | $first = true; |
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204 | $found = false; |
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205 | |
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206 | if (!function_exists('db2_data_source')) return false; |
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207 | |
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208 | while(true) { |
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209 | |
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210 | $rez = @db2_data_source($this->_connectionID, |
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211 | $first ? SQL_FETCH_FIRST : SQL_FETCH_NEXT); |
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212 | $first = false; |
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213 | if (!is_array($rez)) break; |
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214 | if (strtoupper($rez['server']) == $dsn) { |
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215 | $found = true; |
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216 | break; |
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217 | } |
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218 | } |
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219 | if (!$found) return ADOConnection::ServerInfo(); |
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220 | if (!isset($rez['version'])) $rez['version'] = ''; |
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221 | return $rez; |
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222 | } else { |
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223 | return ADOConnection::ServerInfo(); |
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224 | } |
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225 | } |
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226 | |
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227 | |
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228 | function CreateSequence($seqname='adodbseq',$start=1) |
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229 | { |
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230 | if (empty($this->_genSeqSQL)) return false; |
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231 | $ok = $this->Execute(sprintf($this->_genSeqSQL,$seqname)); |
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232 | if (!$ok) return false; |
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233 | return true; |
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234 | } |
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235 | |
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236 | function DropSequence($seqname) |
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237 | { |
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238 | if (empty($this->_dropSeqSQL)) return false; |
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239 | return $this->Execute(sprintf($this->_dropSeqSQL,$seqname)); |
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240 | } |
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241 | |
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242 | /* |
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243 | This algorithm is not very efficient, but works even if table locking |
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244 | is not available. |
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245 | |
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246 | Will return false if unable to generate an ID after $MAXLOOPS attempts. |
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247 | */ |
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248 | function GenID($seq='adodbseq',$start=1) |
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249 | { |
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250 | // if you have to modify the parameter below, your database is overloaded, |
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251 | // or you need to implement generation of id's yourself! |
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252 | $num = $this->GetOne("VALUES NEXTVAL FOR $seq"); |
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253 | return $num; |
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254 | } |
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255 | |
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256 | |
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257 | function ErrorMsg() |
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258 | { |
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259 | if ($this->_haserrorfunctions) { |
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260 | if ($this->_errorMsg !== false) return $this->_errorMsg; |
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261 | if (empty($this->_connectionID)) return @db2_conn_errormsg(); |
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262 | return @db2_conn_errormsg($this->_connectionID); |
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263 | } else return ADOConnection::ErrorMsg(); |
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264 | } |
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265 | |
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266 | function ErrorNo() |
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267 | { |
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268 | |
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269 | if ($this->_haserrorfunctions) { |
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270 | if ($this->_errorCode !== false) { |
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271 | // bug in 4.0.6, error number can be corrupted string (should be 6 digits) |
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272 | return (strlen($this->_errorCode)<=2) ? 0 : $this->_errorCode; |
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273 | } |
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274 | |
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275 | if (empty($this->_connectionID)) $e = @db2_conn_error(); |
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276 | else $e = @db2_conn_error($this->_connectionID); |
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277 | |
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278 | // bug in 4.0.6, error number can be corrupted string (should be 6 digits) |
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279 | // so we check and patch |
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280 | if (strlen($e)<=2) return 0; |
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281 | return $e; |
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282 | } else return ADOConnection::ErrorNo(); |
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283 | } |
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284 | |
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285 | |
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286 | |
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287 | function BeginTrans() |
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288 | { |
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289 | if (!$this->hasTransactions) return false; |
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290 | if ($this->transOff) return true; |
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291 | $this->transCnt += 1; |
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292 | $this->_autocommit = false; |
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293 | return db2_autocommit($this->_connectionID,false); |
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294 | } |
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295 | |
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296 | function CommitTrans($ok=true) |
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297 | { |
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298 | if ($this->transOff) return true; |
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299 | if (!$ok) return $this->RollbackTrans(); |
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300 | if ($this->transCnt) $this->transCnt -= 1; |
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301 | $this->_autocommit = true; |
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302 | $ret = db2_commit($this->_connectionID); |
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303 | db2_autocommit($this->_connectionID,true); |
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304 | return $ret; |
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305 | } |
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306 | |
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307 | function RollbackTrans() |
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308 | { |
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309 | if ($this->transOff) return true; |
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310 | if ($this->transCnt) $this->transCnt -= 1; |
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311 | $this->_autocommit = true; |
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312 | $ret = db2_rollback($this->_connectionID); |
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313 | db2_autocommit($this->_connectionID,true); |
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314 | return $ret; |
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315 | } |
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316 | |
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317 | function MetaPrimaryKeys($table) |
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318 | { |
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319 | global $ADODB_FETCH_MODE; |
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320 | |
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321 | if ($this->uCaseTables) $table = strtoupper($table); |
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322 | $schema = ''; |
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323 | $this->_findschema($table,$schema); |
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324 | |
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325 | $savem = $ADODB_FETCH_MODE; |
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326 | $ADODB_FETCH_MODE = ADODB_FETCH_NUM; |
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327 | $qid = @db2_primarykeys($this->_connectionID,'',$schema,$table); |
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328 | |
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329 | if (!$qid) { |
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330 | $ADODB_FETCH_MODE = $savem; |
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331 | return false; |
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332 | } |
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333 | $rs = new ADORecordSet_db2($qid); |
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334 | $ADODB_FETCH_MODE = $savem; |
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335 | |
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336 | if (!$rs) return false; |
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337 | |
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338 | $arr =& $rs->GetArray(); |
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339 | $rs->Close(); |
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340 | $arr2 = array(); |
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341 | for ($i=0; $i < sizeof($arr); $i++) { |
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342 | if ($arr[$i][3]) $arr2[] = $arr[$i][3]; |
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343 | } |
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344 | return $arr2; |
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345 | } |
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346 | |
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347 | function MetaForeignKeys($table, $owner = FALSE, $upper = FALSE, $asociative = FALSE ) |
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348 | { |
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349 | global $ADODB_FETCH_MODE; |
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350 | |
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351 | if ($this->uCaseTables) $table = strtoupper($table); |
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352 | $schema = ''; |
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353 | $this->_findschema($table,$schema); |
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354 | |
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355 | $savem = $ADODB_FETCH_MODE; |
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356 | $ADODB_FETCH_MODE = ADODB_FETCH_NUM; |
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357 | $qid = @db2_foreign_keys($this->_connectionID,'',$schema,$table); |
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358 | if (!$qid) { |
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359 | $ADODB_FETCH_MODE = $savem; |
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360 | return false; |
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361 | } |
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362 | $rs = new ADORecordSet_db2($qid); |
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363 | |
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364 | $ADODB_FETCH_MODE = $savem; |
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365 | /* |
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366 | $rs->fields indices |
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367 | 0 PKTABLE_CAT |
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368 | 1 PKTABLE_SCHEM |
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369 | 2 PKTABLE_NAME |
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370 | 3 PKCOLUMN_NAME |
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371 | 4 FKTABLE_CAT |
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372 | 5 FKTABLE_SCHEM |
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373 | 6 FKTABLE_NAME |
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374 | 7 FKCOLUMN_NAME |
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375 | */ |
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376 | if (!$rs) return false; |
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377 | |
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378 | $foreign_keys = array(); |
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379 | while (!$rs->EOF) { |
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380 | if (strtoupper(trim($rs->fields[2])) == $table && (!$schema || strtoupper($rs->fields[1]) == $schema)) { |
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381 | if (!is_array($foreign_keys[$rs->fields[5].'.'.$rs->fields[6]])) |
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382 | $foreign_keys[$rs->fields[5].'.'.$rs->fields[6]] = array(); |
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383 | $foreign_keys[$rs->fields[5].'.'.$rs->fields[6]][$rs->fields[7]] = $rs->fields[3]; |
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384 | } |
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385 | $rs->MoveNext(); |
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386 | } |
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387 | |
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388 | $rs->Close(); |
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389 | return $foreign_key; |
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390 | } |
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391 | |
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392 | |
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393 | function &MetaTables($ttype=false,$schema=false) |
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394 | { |
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395 | global $ADODB_FETCH_MODE; |
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396 | |
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397 | $savem = $ADODB_FETCH_MODE; |
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398 | $ADODB_FETCH_MODE = ADODB_FETCH_NUM; |
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399 | $qid = db2_tables($this->_connectionID); |
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400 | |
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401 | $rs = new ADORecordSet_db2($qid); |
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402 | |
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403 | $ADODB_FETCH_MODE = $savem; |
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404 | if (!$rs) { |
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405 | $false = false; |
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406 | return $false; |
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407 | } |
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408 | |
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409 | $arr =& $rs->GetArray(); |
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410 | |
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411 | $rs->Close(); |
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412 | $arr2 = array(); |
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413 | |
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414 | if ($ttype) { |
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415 | $isview = strncmp($ttype,'V',1) === 0; |
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416 | } |
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417 | for ($i=0; $i < sizeof($arr); $i++) { |
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418 | if (!$arr[$i][2]) continue; |
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419 | $type = $arr[$i][3]; |
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420 | $schemaval = ($schema) ? $arr[$i][1].'.' : ''; |
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421 | if ($ttype) { |
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422 | if ($isview) { |
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423 | if (strncmp($type,'V',1) === 0) $arr2[] = $schemaval.$arr[$i][2]; |
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424 | } else if (strncmp($type,'SYS',3) !== 0) $arr2[] = $schemaval.$arr[$i][2]; |
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425 | } else if (strncmp($type,'SYS',3) !== 0) $arr2[] = $schemaval.$arr[$i][2]; |
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426 | } |
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427 | return $arr2; |
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428 | } |
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429 | |
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430 | /* |
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431 | See http://msdn.microsoft.com/library/default.asp?url=/library/en-us/db2/htm/db2datetime_data_type_changes.asp |
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432 | / SQL data type codes / |
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433 | #define SQL_UNKNOWN_TYPE 0 |
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434 | #define SQL_CHAR 1 |
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435 | #define SQL_NUMERIC 2 |
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436 | #define SQL_DECIMAL 3 |
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437 | #define SQL_INTEGER 4 |
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438 | #define SQL_SMALLINT 5 |
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439 | #define SQL_FLOAT 6 |
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440 | #define SQL_REAL 7 |
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441 | #define SQL_DOUBLE 8 |
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442 | #if (DB2VER >= 0x0300) |
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443 | #define SQL_DATETIME 9 |
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444 | #endif |
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445 | #define SQL_VARCHAR 12 |
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446 | |
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447 | |
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448 | / One-parameter shortcuts for date/time data types / |
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449 | #if (DB2VER >= 0x0300) |
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450 | #define SQL_TYPE_DATE 91 |
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451 | #define SQL_TYPE_TIME 92 |
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452 | #define SQL_TYPE_TIMESTAMP 93 |
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453 | |
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454 | #define SQL_UNICODE (-95) |
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455 | #define SQL_UNICODE_VARCHAR (-96) |
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456 | #define SQL_UNICODE_LONGVARCHAR (-97) |
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457 | */ |
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458 | function DB2Types($t) |
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459 | { |
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460 | switch ((integer)$t) { |
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461 | case 1: |
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462 | case 12: |
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463 | case 0: |
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464 | case -95: |
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465 | case -96: |
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466 | return 'C'; |
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467 | case -97: |
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468 | case -1: //text |
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469 | return 'X'; |
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470 | case -4: //image |
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471 | return 'B'; |
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472 | |
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473 | case 9: |
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474 | case 91: |
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475 | return 'D'; |
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476 | |
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477 | case 10: |
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478 | case 11: |
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479 | case 92: |
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480 | case 93: |
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481 | return 'T'; |
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482 | |
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483 | case 4: |
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484 | case 5: |
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485 | case -6: |
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486 | return 'I'; |
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487 | |
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488 | case -11: // uniqidentifier |
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489 | return 'R'; |
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490 | case -7: //bit |
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491 | return 'L'; |
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492 | |
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493 | default: |
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494 | return 'N'; |
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495 | } |
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496 | } |
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497 | |
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498 | function &MetaColumns($table) |
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499 | { |
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500 | global $ADODB_FETCH_MODE; |
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501 | |
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502 | $false = false; |
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503 | if ($this->uCaseTables) $table = strtoupper($table); |
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504 | $schema = ''; |
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505 | $this->_findschema($table,$schema); |
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506 | |
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507 | $savem = $ADODB_FETCH_MODE; |
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508 | $ADODB_FETCH_MODE = ADODB_FETCH_NUM; |
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509 | |
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510 | $colname = "%"; |
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511 | $qid = db2_columns($this->_connectionID, "", $schema, $table, $colname); |
---|
512 | if (empty($qid)) return $false; |
---|
513 | |
---|
514 | $rs =& new ADORecordSet_db2($qid); |
---|
515 | $ADODB_FETCH_MODE = $savem; |
---|
516 | |
---|
517 | if (!$rs) return $false; |
---|
518 | $rs->_fetch(); |
---|
519 | |
---|
520 | $retarr = array(); |
---|
521 | |
---|
522 | /* |
---|
523 | $rs->fields indices |
---|
524 | 0 TABLE_QUALIFIER |
---|
525 | 1 TABLE_SCHEM |
---|
526 | 2 TABLE_NAME |
---|
527 | 3 COLUMN_NAME |
---|
528 | 4 DATA_TYPE |
---|
529 | 5 TYPE_NAME |
---|
530 | 6 PRECISION |
---|
531 | 7 LENGTH |
---|
532 | 8 SCALE |
---|
533 | 9 RADIX |
---|
534 | 10 NULLABLE |
---|
535 | 11 REMARKS |
---|
536 | */ |
---|
537 | while (!$rs->EOF) { |
---|
538 | if (strtoupper(trim($rs->fields[2])) == $table && (!$schema || strtoupper($rs->fields[1]) == $schema)) { |
---|
539 | $fld = new ADOFieldObject(); |
---|
540 | $fld->name = $rs->fields[3]; |
---|
541 | $fld->type = $this->DB2Types($rs->fields[4]); |
---|
542 | |
---|
543 | // ref: http://msdn.microsoft.com/library/default.asp?url=/archive/en-us/dnaraccgen/html/msdn_odk.asp |
---|
544 | // access uses precision to store length for char/varchar |
---|
545 | if ($fld->type == 'C' or $fld->type == 'X') { |
---|
546 | if ($rs->fields[4] <= -95) // UNICODE |
---|
547 | $fld->max_length = $rs->fields[7]/2; |
---|
548 | else |
---|
549 | $fld->max_length = $rs->fields[7]; |
---|
550 | } else |
---|
551 | $fld->max_length = $rs->fields[7]; |
---|
552 | $fld->not_null = !empty($rs->fields[10]); |
---|
553 | $fld->scale = $rs->fields[8]; |
---|
554 | $fld->primary_key = false; |
---|
555 | $retarr[strtoupper($fld->name)] = $fld; |
---|
556 | } else if (sizeof($retarr)>0) |
---|
557 | break; |
---|
558 | $rs->MoveNext(); |
---|
559 | } |
---|
560 | $rs->Close(); |
---|
561 | if (empty($retarr)) $retarr = false; |
---|
562 | |
---|
563 | $qid = db2_primary_keys($this->_connectionID, "", $schema, $table); |
---|
564 | if (empty($qid)) return $false; |
---|
565 | |
---|
566 | $rs =& new ADORecordSet_db2($qid); |
---|
567 | $ADODB_FETCH_MODE = $savem; |
---|
568 | |
---|
569 | if (!$rs) return $retarr; |
---|
570 | $rs->_fetch(); |
---|
571 | |
---|
572 | /* |
---|
573 | $rs->fields indices |
---|
574 | 0 TABLE_CAT |
---|
575 | 1 TABLE_SCHEM |
---|
576 | 2 TABLE_NAME |
---|
577 | 3 COLUMN_NAME |
---|
578 | 4 KEY_SEQ |
---|
579 | 5 PK_NAME |
---|
580 | */ |
---|
581 | while (!$rs->EOF) { |
---|
582 | if (strtoupper(trim($rs->fields[2])) == $table && (!$schema || strtoupper($rs->fields[1]) == $schema)) { |
---|
583 | $retarr[strtoupper($rs->fields[3])]->primary_key = true; |
---|
584 | } else if (sizeof($retarr)>0) |
---|
585 | break; |
---|
586 | $rs->MoveNext(); |
---|
587 | } |
---|
588 | $rs->Close(); |
---|
589 | |
---|
590 | if (empty($retarr)) $retarr = false; |
---|
591 | return $retarr; |
---|
592 | } |
---|
593 | |
---|
594 | function Prepare($sql) |
---|
595 | { |
---|
596 | if (! $this->_bindInputArray) return $sql; // no binding |
---|
597 | $stmt = db2_prepare($this->_connectionID,$sql); |
---|
598 | if (!$stmt) { |
---|
599 | // we don't know whether db2 driver is parsing prepared stmts, so just return sql |
---|
600 | return $sql; |
---|
601 | } |
---|
602 | return array($sql,$stmt,false); |
---|
603 | } |
---|
604 | |
---|
605 | /* returns queryID or false */ |
---|
606 | function _query($sql,$inputarr=false) |
---|
607 | { |
---|
608 | GLOBAL $php_errormsg; |
---|
609 | if (isset($php_errormsg)) $php_errormsg = ''; |
---|
610 | $this->_error = ''; |
---|
611 | |
---|
612 | if ($inputarr) { |
---|
613 | if (is_array($sql)) { |
---|
614 | $stmtid = $sql[1]; |
---|
615 | } else { |
---|
616 | $stmtid = db2_prepare($this->_connectionID,$sql); |
---|
617 | |
---|
618 | if ($stmtid == false) { |
---|
619 | $this->_errorMsg = isset($php_errormsg) ? $php_errormsg : ''; |
---|
620 | return false; |
---|
621 | } |
---|
622 | } |
---|
623 | |
---|
624 | if (! db2_execute($stmtid,$inputarr)) { |
---|
625 | if ($this->_haserrorfunctions) { |
---|
626 | $this->_errorMsg = db2_stmt_errormsg(); |
---|
627 | $this->_errorCode = db2_stmt_error(); |
---|
628 | } |
---|
629 | return false; |
---|
630 | } |
---|
631 | |
---|
632 | } else if (is_array($sql)) { |
---|
633 | $stmtid = $sql[1]; |
---|
634 | if (!db2_execute($stmtid)) { |
---|
635 | if ($this->_haserrorfunctions) { |
---|
636 | $this->_errorMsg = db2_stmt_errormsg(); |
---|
637 | $this->_errorCode = db2_stmt_error(); |
---|
638 | } |
---|
639 | return false; |
---|
640 | } |
---|
641 | } else |
---|
642 | $stmtid = @db2_exec($this->_connectionID,$sql); |
---|
643 | |
---|
644 | $this->_lastAffectedRows = 0; |
---|
645 | if ($stmtid) { |
---|
646 | if (@db2_num_fields($stmtid) == 0) { |
---|
647 | $this->_lastAffectedRows = db2_num_rows($stmtid); |
---|
648 | $stmtid = true; |
---|
649 | } else { |
---|
650 | $this->_lastAffectedRows = 0; |
---|
651 | } |
---|
652 | |
---|
653 | if ($this->_haserrorfunctions) { |
---|
654 | $this->_errorMsg = ''; |
---|
655 | $this->_errorCode = 0; |
---|
656 | } else |
---|
657 | $this->_errorMsg = isset($php_errormsg) ? $php_errormsg : ''; |
---|
658 | } else { |
---|
659 | if ($this->_haserrorfunctions) { |
---|
660 | $this->_errorMsg = db2_stmt_errormsg(); |
---|
661 | $this->_errorCode = db2_stmt_error(); |
---|
662 | } else |
---|
663 | $this->_errorMsg = isset($php_errormsg) ? $php_errormsg : ''; |
---|
664 | |
---|
665 | } |
---|
666 | return $stmtid; |
---|
667 | } |
---|
668 | |
---|
669 | /* |
---|
670 | Insert a null into the blob field of the table first. |
---|
671 | Then use UpdateBlob to store the blob. |
---|
672 | |
---|
673 | Usage: |
---|
674 | |
---|
675 | $conn->Execute('INSERT INTO blobtable (id, blobcol) VALUES (1, null)'); |
---|
676 | $conn->UpdateBlob('blobtable','blobcol',$blob,'id=1'); |
---|
677 | */ |
---|
678 | function UpdateBlob($table,$column,$val,$where,$blobtype='BLOB') |
---|
679 | { |
---|
680 | return $this->Execute("UPDATE $table SET $column=? WHERE $where",array($val)) != false; |
---|
681 | } |
---|
682 | |
---|
683 | // returns true or false |
---|
684 | function _close() |
---|
685 | { |
---|
686 | $ret = @db2_close($this->_connectionID); |
---|
687 | $this->_connectionID = false; |
---|
688 | return $ret; |
---|
689 | } |
---|
690 | |
---|
691 | function _affectedrows() |
---|
692 | { |
---|
693 | return $this->_lastAffectedRows; |
---|
694 | } |
---|
695 | |
---|
696 | } |
---|
697 | |
---|
698 | /*-------------------------------------------------------------------------------------- |
---|
699 | Class Name: Recordset |
---|
700 | --------------------------------------------------------------------------------------*/ |
---|
701 | |
---|
702 | class ADORecordSet_db2 extends ADORecordSet { |
---|
703 | |
---|
704 | var $bind = false; |
---|
705 | var $databaseType = "db2"; |
---|
706 | var $dataProvider = "db2"; |
---|
707 | var $useFetchArray; |
---|
708 | |
---|
709 | function ADORecordSet_db2($id,$mode=false) |
---|
710 | { |
---|
711 | if ($mode === false) { |
---|
712 | global $ADODB_FETCH_MODE; |
---|
713 | $mode = $ADODB_FETCH_MODE; |
---|
714 | } |
---|
715 | $this->fetchMode = $mode; |
---|
716 | |
---|
717 | $this->_queryID = $id; |
---|
718 | } |
---|
719 | |
---|
720 | |
---|
721 | // returns the field object |
---|
722 | function &FetchField($offset = -1) |
---|
723 | { |
---|
724 | $o= new ADOFieldObject(); |
---|
725 | $o->name = @db2_field_name($this->_queryID,$offset); |
---|
726 | $o->type = @db2_field_type($this->_queryID,$offset); |
---|
727 | $o->max_length = db2_field_width($this->_queryID,$offset); |
---|
728 | if (ADODB_ASSOC_CASE == 0) $o->name = strtolower($o->name); |
---|
729 | else if (ADODB_ASSOC_CASE == 1) $o->name = strtoupper($o->name); |
---|
730 | return $o; |
---|
731 | } |
---|
732 | |
---|
733 | /* Use associative array to get fields array */ |
---|
734 | function Fields($colname) |
---|
735 | { |
---|
736 | if ($this->fetchMode & ADODB_FETCH_ASSOC) return $this->fields[$colname]; |
---|
737 | if (!$this->bind) { |
---|
738 | $this->bind = array(); |
---|
739 | for ($i=0; $i < $this->_numOfFields; $i++) { |
---|
740 | $o = $this->FetchField($i); |
---|
741 | $this->bind[strtoupper($o->name)] = $i; |
---|
742 | } |
---|
743 | } |
---|
744 | |
---|
745 | return $this->fields[$this->bind[strtoupper($colname)]]; |
---|
746 | } |
---|
747 | |
---|
748 | |
---|
749 | function _initrs() |
---|
750 | { |
---|
751 | global $ADODB_COUNTRECS; |
---|
752 | $this->_numOfRows = ($ADODB_COUNTRECS) ? @db2_num_rows($this->_queryID) : -1; |
---|
753 | $this->_numOfFields = @db2_num_fields($this->_queryID); |
---|
754 | // some silly drivers such as db2 as/400 and intersystems cache return _numOfRows = 0 |
---|
755 | if ($this->_numOfRows == 0) $this->_numOfRows = -1; |
---|
756 | } |
---|
757 | |
---|
758 | function _seek($row) |
---|
759 | { |
---|
760 | return false; |
---|
761 | } |
---|
762 | |
---|
763 | // speed up SelectLimit() by switching to ADODB_FETCH_NUM as ADODB_FETCH_ASSOC is emulated |
---|
764 | function &GetArrayLimit($nrows,$offset=-1) |
---|
765 | { |
---|
766 | if ($offset <= 0) { |
---|
767 | $rs =& $this->GetArray($nrows); |
---|
768 | return $rs; |
---|
769 | } |
---|
770 | $savem = $this->fetchMode; |
---|
771 | $this->fetchMode = ADODB_FETCH_NUM; |
---|
772 | $this->Move($offset); |
---|
773 | $this->fetchMode = $savem; |
---|
774 | |
---|
775 | if ($this->fetchMode & ADODB_FETCH_ASSOC) { |
---|
776 | $this->fields =& $this->GetRowAssoc(ADODB_ASSOC_CASE); |
---|
777 | } |
---|
778 | |
---|
779 | $results = array(); |
---|
780 | $cnt = 0; |
---|
781 | while (!$this->EOF && $nrows != $cnt) { |
---|
782 | $results[$cnt++] = $this->fields; |
---|
783 | $this->MoveNext(); |
---|
784 | } |
---|
785 | |
---|
786 | return $results; |
---|
787 | } |
---|
788 | |
---|
789 | |
---|
790 | function MoveNext() |
---|
791 | { |
---|
792 | if ($this->_numOfRows != 0 && !$this->EOF) { |
---|
793 | $this->_currentRow++; |
---|
794 | |
---|
795 | $this->fields = @db2_fetch_array($this->_queryID); |
---|
796 | if ($this->fields) { |
---|
797 | if ($this->fetchMode & ADODB_FETCH_ASSOC) { |
---|
798 | $this->fields =& $this->GetRowAssoc(ADODB_ASSOC_CASE); |
---|
799 | } |
---|
800 | return true; |
---|
801 | } |
---|
802 | } |
---|
803 | $this->fields = false; |
---|
804 | $this->EOF = true; |
---|
805 | return false; |
---|
806 | } |
---|
807 | |
---|
808 | function _fetch() |
---|
809 | { |
---|
810 | |
---|
811 | $this->fields = db2_fetch_array($this->_queryID); |
---|
812 | if ($this->fields) { |
---|
813 | if ($this->fetchMode & ADODB_FETCH_ASSOC) { |
---|
814 | $this->fields =& $this->GetRowAssoc(ADODB_ASSOC_CASE); |
---|
815 | } |
---|
816 | return true; |
---|
817 | } |
---|
818 | $this->fields = false; |
---|
819 | return false; |
---|
820 | } |
---|
821 | |
---|
822 | function _close() |
---|
823 | { |
---|
824 | return @db2_free_result($this->_queryID); |
---|
825 | } |
---|
826 | |
---|
827 | } |
---|
828 | ?> |
---|