1 | <?php |
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2 | // vim: set et ts=4 sw=4 fdm=marker: |
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3 | // +----------------------------------------------------------------------+ |
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4 | // | PHP versions 4 and 5 | |
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5 | // +----------------------------------------------------------------------+ |
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6 | // | Copyright (c) 1998-2008 Manuel Lemos, Tomas V.V.Cox, | |
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7 | // | Stig. S. Bakken, Lukas Smith | |
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8 | // | All rights reserved. | |
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9 | // +----------------------------------------------------------------------+ |
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10 | // | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB | |
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11 | // | API as well as database abstraction for PHP applications. | |
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12 | // | This LICENSE is in the BSD license style. | |
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13 | // | | |
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14 | // | Redistribution and use in source and binary forms, with or without | |
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15 | // | modification, are permitted provided that the following conditions | |
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16 | // | are met: | |
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17 | // | | |
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18 | // | Redistributions of source code must retain the above copyright | |
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19 | // | notice, this list of conditions and the following disclaimer. | |
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20 | // | | |
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21 | // | Redistributions in binary form must reproduce the above copyright | |
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22 | // | notice, this list of conditions and the following disclaimer in the | |
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23 | // | documentation and/or other materials provided with the distribution. | |
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24 | // | | |
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25 | // | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, | |
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26 | // | Lukas Smith nor the names of his contributors may be used to endorse | |
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27 | // | or promote products derived from this software without specific prior| |
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28 | // | written permission. | |
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29 | // | | |
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30 | // | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
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31 | // | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
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32 | // | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
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33 | // | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
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34 | // | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
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35 | // | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | |
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36 | // | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS| |
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37 | // | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED | |
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38 | // | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
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39 | // | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY| |
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40 | // | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
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41 | // | POSSIBILITY OF SUCH DAMAGE. | |
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42 | // +----------------------------------------------------------------------+ |
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43 | // | Author: Lukas Smith <smith@pooteeweet.org> | |
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44 | // +----------------------------------------------------------------------+ |
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45 | // |
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46 | // $Id: mysql.php,v 1.214 2008/11/16 21:45:08 quipo Exp $ |
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47 | // |
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48 | |
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49 | /** |
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50 | * MDB2 MySQL driver |
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51 | * |
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52 | * @package MDB2 |
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53 | * @category Database |
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54 | * @author Lukas Smith <smith@pooteeweet.org> |
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55 | */ |
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56 | class MDB2_Driver_mysql extends MDB2_Driver_Common |
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57 | { |
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58 | // {{{ properties |
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59 | |
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60 | var $string_quoting = array('start' => "'", 'end' => "'", 'escape' => '\\', 'escape_pattern' => '\\'); |
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61 | |
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62 | var $identifier_quoting = array('start' => '`', 'end' => '`', 'escape' => '`'); |
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63 | |
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64 | var $sql_comments = array( |
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65 | array('start' => '-- ', 'end' => "\n", 'escape' => false), |
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66 | array('start' => '#', 'end' => "\n", 'escape' => false), |
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67 | array('start' => '/*', 'end' => '*/', 'escape' => false), |
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68 | ); |
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69 | |
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70 | var $server_capabilities_checked = false; |
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71 | |
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72 | var $start_transaction = false; |
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73 | |
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74 | var $varchar_max_length = 255; |
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75 | |
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76 | // }}} |
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77 | // {{{ constructor |
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78 | |
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79 | /** |
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80 | * Constructor |
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81 | */ |
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82 | function __construct() |
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83 | { |
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84 | parent::__construct(); |
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85 | |
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86 | $this->phptype = 'mysql'; |
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87 | $this->dbsyntax = 'mysql'; |
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88 | |
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89 | $this->supported['sequences'] = 'emulated'; |
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90 | $this->supported['indexes'] = true; |
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91 | $this->supported['affected_rows'] = true; |
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92 | $this->supported['transactions'] = false; |
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93 | $this->supported['savepoints'] = false; |
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94 | $this->supported['summary_functions'] = true; |
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95 | $this->supported['order_by_text'] = true; |
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96 | $this->supported['current_id'] = 'emulated'; |
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97 | $this->supported['limit_queries'] = true; |
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98 | $this->supported['LOBs'] = true; |
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99 | $this->supported['replace'] = true; |
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100 | $this->supported['sub_selects'] = 'emulated'; |
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101 | $this->supported['triggers'] = false; |
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102 | $this->supported['auto_increment'] = true; |
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103 | $this->supported['primary_key'] = true; |
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104 | $this->supported['result_introspection'] = true; |
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105 | $this->supported['prepared_statements'] = 'emulated'; |
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106 | $this->supported['identifier_quoting'] = true; |
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107 | $this->supported['pattern_escaping'] = true; |
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108 | $this->supported['new_link'] = true; |
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109 | |
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110 | $this->options['DBA_username'] = false; |
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111 | $this->options['DBA_password'] = false; |
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112 | $this->options['default_table_type'] = ''; |
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113 | $this->options['max_identifiers_length'] = 64; |
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114 | |
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115 | $this->_reCheckSupportedOptions(); |
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116 | } |
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117 | |
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118 | // }}} |
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119 | // {{{ _reCheckSupportedOptions() |
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120 | |
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121 | /** |
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122 | * If the user changes certain options, other capabilities may depend |
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123 | * on the new settings, so we need to check them (again). |
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124 | * |
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125 | * @access private |
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126 | */ |
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127 | function _reCheckSupportedOptions() |
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128 | { |
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129 | $this->supported['transactions'] = $this->options['use_transactions']; |
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130 | $this->supported['savepoints'] = $this->options['use_transactions']; |
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131 | if ($this->options['default_table_type']) { |
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132 | switch (strtoupper($this->options['default_table_type'])) { |
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133 | case 'BLACKHOLE': |
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134 | case 'MEMORY': |
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135 | case 'ARCHIVE': |
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136 | case 'CSV': |
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137 | case 'HEAP': |
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138 | case 'ISAM': |
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139 | case 'MERGE': |
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140 | case 'MRG_ISAM': |
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141 | case 'ISAM': |
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142 | case 'MRG_MYISAM': |
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143 | case 'MYISAM': |
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144 | $this->supported['savepoints'] = false; |
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145 | $this->supported['transactions'] = false; |
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146 | $this->warnings[] = $this->options['default_table_type'] . |
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147 | ' is not a supported default table type'; |
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148 | break; |
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149 | } |
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150 | } |
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151 | } |
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152 | |
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153 | // }}} |
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154 | // {{{ function setOption($option, $value) |
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155 | |
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156 | /** |
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157 | * set the option for the db class |
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158 | * |
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159 | * @param string option name |
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160 | * @param mixed value for the option |
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161 | * |
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162 | * @return mixed MDB2_OK or MDB2 Error Object |
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163 | * |
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164 | * @access public |
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165 | */ |
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166 | function setOption($option, $value) |
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167 | { |
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168 | $res = parent::setOption($option, $value); |
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169 | $this->_reCheckSupportedOptions(); |
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170 | } |
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171 | |
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172 | // }}} |
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173 | // {{{ errorInfo() |
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174 | |
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175 | /** |
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176 | * This method is used to collect information about an error |
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177 | * |
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178 | * @param integer $error |
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179 | * @return array |
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180 | * @access public |
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181 | */ |
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182 | function errorInfo($error = null) |
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183 | { |
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184 | if ($this->connection) { |
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185 | $native_code = @mysql_errno($this->connection); |
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186 | $native_msg = @mysql_error($this->connection); |
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187 | } else { |
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188 | $native_code = @mysql_errno(); |
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189 | $native_msg = @mysql_error(); |
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190 | } |
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191 | if (is_null($error)) { |
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192 | static $ecode_map; |
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193 | if (empty($ecode_map)) { |
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194 | $ecode_map = array( |
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195 | 1000 => MDB2_ERROR_INVALID, //hashchk |
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196 | 1001 => MDB2_ERROR_INVALID, //isamchk |
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197 | 1004 => MDB2_ERROR_CANNOT_CREATE, |
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198 | 1005 => MDB2_ERROR_CANNOT_CREATE, |
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199 | 1006 => MDB2_ERROR_CANNOT_CREATE, |
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200 | 1007 => MDB2_ERROR_ALREADY_EXISTS, |
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201 | 1008 => MDB2_ERROR_CANNOT_DROP, |
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202 | 1009 => MDB2_ERROR_CANNOT_DROP, |
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203 | 1010 => MDB2_ERROR_CANNOT_DROP, |
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204 | 1011 => MDB2_ERROR_CANNOT_DELETE, |
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205 | 1022 => MDB2_ERROR_ALREADY_EXISTS, |
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206 | 1029 => MDB2_ERROR_NOT_FOUND, |
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207 | 1032 => MDB2_ERROR_NOT_FOUND, |
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208 | 1044 => MDB2_ERROR_ACCESS_VIOLATION, |
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209 | 1045 => MDB2_ERROR_ACCESS_VIOLATION, |
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210 | 1046 => MDB2_ERROR_NODBSELECTED, |
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211 | 1048 => MDB2_ERROR_CONSTRAINT, |
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212 | 1049 => MDB2_ERROR_NOSUCHDB, |
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213 | 1050 => MDB2_ERROR_ALREADY_EXISTS, |
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214 | 1051 => MDB2_ERROR_NOSUCHTABLE, |
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215 | 1054 => MDB2_ERROR_NOSUCHFIELD, |
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216 | 1060 => MDB2_ERROR_ALREADY_EXISTS, |
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217 | 1061 => MDB2_ERROR_ALREADY_EXISTS, |
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218 | 1062 => MDB2_ERROR_ALREADY_EXISTS, |
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219 | 1064 => MDB2_ERROR_SYNTAX, |
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220 | 1067 => MDB2_ERROR_INVALID, |
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221 | 1072 => MDB2_ERROR_NOT_FOUND, |
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222 | 1086 => MDB2_ERROR_ALREADY_EXISTS, |
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223 | 1091 => MDB2_ERROR_NOT_FOUND, |
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224 | 1100 => MDB2_ERROR_NOT_LOCKED, |
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225 | 1109 => MDB2_ERROR_NOT_FOUND, |
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226 | 1125 => MDB2_ERROR_ALREADY_EXISTS, |
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227 | 1136 => MDB2_ERROR_VALUE_COUNT_ON_ROW, |
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228 | 1138 => MDB2_ERROR_INVALID, |
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229 | 1142 => MDB2_ERROR_ACCESS_VIOLATION, |
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230 | 1143 => MDB2_ERROR_ACCESS_VIOLATION, |
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231 | 1146 => MDB2_ERROR_NOSUCHTABLE, |
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232 | 1149 => MDB2_ERROR_SYNTAX, |
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233 | 1169 => MDB2_ERROR_CONSTRAINT, |
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234 | 1176 => MDB2_ERROR_NOT_FOUND, |
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235 | 1177 => MDB2_ERROR_NOSUCHTABLE, |
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236 | 1213 => MDB2_ERROR_DEADLOCK, |
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237 | 1216 => MDB2_ERROR_CONSTRAINT, |
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238 | 1217 => MDB2_ERROR_CONSTRAINT, |
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239 | 1227 => MDB2_ERROR_ACCESS_VIOLATION, |
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240 | 1235 => MDB2_ERROR_CANNOT_CREATE, |
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241 | 1299 => MDB2_ERROR_INVALID_DATE, |
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242 | 1300 => MDB2_ERROR_INVALID, |
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243 | 1304 => MDB2_ERROR_ALREADY_EXISTS, |
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244 | 1305 => MDB2_ERROR_NOT_FOUND, |
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245 | 1306 => MDB2_ERROR_CANNOT_DROP, |
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246 | 1307 => MDB2_ERROR_CANNOT_CREATE, |
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247 | 1334 => MDB2_ERROR_CANNOT_ALTER, |
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248 | 1339 => MDB2_ERROR_NOT_FOUND, |
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249 | 1356 => MDB2_ERROR_INVALID, |
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250 | 1359 => MDB2_ERROR_ALREADY_EXISTS, |
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251 | 1360 => MDB2_ERROR_NOT_FOUND, |
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252 | 1363 => MDB2_ERROR_NOT_FOUND, |
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253 | 1365 => MDB2_ERROR_DIVZERO, |
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254 | 1451 => MDB2_ERROR_CONSTRAINT, |
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255 | 1452 => MDB2_ERROR_CONSTRAINT, |
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256 | 1542 => MDB2_ERROR_CANNOT_DROP, |
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257 | 1546 => MDB2_ERROR_CONSTRAINT, |
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258 | 1582 => MDB2_ERROR_CONSTRAINT, |
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259 | 2003 => MDB2_ERROR_CONNECT_FAILED, |
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260 | 2019 => MDB2_ERROR_INVALID, |
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261 | ); |
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262 | } |
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263 | if ($this->options['portability'] & MDB2_PORTABILITY_ERRORS) { |
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264 | $ecode_map[1022] = MDB2_ERROR_CONSTRAINT; |
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265 | $ecode_map[1048] = MDB2_ERROR_CONSTRAINT_NOT_NULL; |
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266 | $ecode_map[1062] = MDB2_ERROR_CONSTRAINT; |
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267 | } else { |
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268 | // Doing this in case mode changes during runtime. |
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269 | $ecode_map[1022] = MDB2_ERROR_ALREADY_EXISTS; |
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270 | $ecode_map[1048] = MDB2_ERROR_CONSTRAINT; |
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271 | $ecode_map[1062] = MDB2_ERROR_ALREADY_EXISTS; |
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272 | } |
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273 | if (isset($ecode_map[$native_code])) { |
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274 | $error = $ecode_map[$native_code]; |
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275 | } |
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276 | } |
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277 | return array($error, $native_code, $native_msg); |
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278 | } |
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279 | |
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280 | // }}} |
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281 | // {{{ escape() |
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282 | |
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283 | /** |
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284 | * Quotes a string so it can be safely used in a query. It will quote |
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285 | * the text so it can safely be used within a query. |
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286 | * |
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287 | * @param string the input string to quote |
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288 | * @param bool escape wildcards |
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289 | * |
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290 | * @return string quoted string |
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291 | * |
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292 | * @access public |
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293 | */ |
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294 | function escape($text, $escape_wildcards = false) |
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295 | { |
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296 | if ($escape_wildcards) { |
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297 | $text = $this->escapePattern($text); |
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298 | } |
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299 | $connection = $this->getConnection(); |
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300 | if (PEAR::isError($connection)) { |
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301 | return $connection; |
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302 | } |
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303 | $text = @mysql_real_escape_string($text, $connection); |
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304 | return $text; |
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305 | } |
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306 | |
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307 | // }}} |
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308 | // {{{ beginTransaction() |
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309 | |
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310 | /** |
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311 | * Start a transaction or set a savepoint. |
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312 | * |
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313 | * @param string name of a savepoint to set |
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314 | * @return mixed MDB2_OK on success, a MDB2 error on failure |
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315 | * |
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316 | * @access public |
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317 | */ |
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318 | function beginTransaction($savepoint = null) |
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319 | { |
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320 | $this->debug('Starting transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint)); |
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321 | $this->_getServerCapabilities(); |
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322 | if (!is_null($savepoint)) { |
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323 | if (!$this->supports('savepoints')) { |
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324 | return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, |
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325 | 'savepoints are not supported', __FUNCTION__); |
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326 | } |
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327 | if (!$this->in_transaction) { |
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328 | return $this->raiseError(MDB2_ERROR_INVALID, null, null, |
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329 | 'savepoint cannot be released when changes are auto committed', __FUNCTION__); |
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330 | } |
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331 | $query = 'SAVEPOINT '.$savepoint; |
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332 | return $this->_doQuery($query, true); |
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333 | } elseif ($this->in_transaction) { |
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334 | return MDB2_OK; //nothing to do |
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335 | } |
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336 | if (!$this->destructor_registered && $this->opened_persistent) { |
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337 | $this->destructor_registered = true; |
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338 | register_shutdown_function('MDB2_closeOpenTransactions'); |
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339 | } |
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340 | $query = $this->start_transaction ? 'START TRANSACTION' : 'SET AUTOCOMMIT = 0'; |
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341 | $result =& $this->_doQuery($query, true); |
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342 | if (PEAR::isError($result)) { |
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343 | return $result; |
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344 | } |
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345 | $this->in_transaction = true; |
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346 | return MDB2_OK; |
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347 | } |
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348 | |
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349 | // }}} |
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350 | // {{{ commit() |
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351 | |
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352 | /** |
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353 | * Commit the database changes done during a transaction that is in |
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354 | * progress or release a savepoint. This function may only be called when |
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355 | * auto-committing is disabled, otherwise it will fail. Therefore, a new |
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356 | * transaction is implicitly started after committing the pending changes. |
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357 | * |
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358 | * @param string name of a savepoint to release |
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359 | * @return mixed MDB2_OK on success, a MDB2 error on failure |
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360 | * |
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361 | * @access public |
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362 | */ |
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363 | function commit($savepoint = null) |
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364 | { |
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365 | $this->debug('Committing transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint)); |
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366 | if (!$this->in_transaction) { |
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367 | return $this->raiseError(MDB2_ERROR_INVALID, null, null, |
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368 | 'commit/release savepoint cannot be done changes are auto committed', __FUNCTION__); |
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369 | } |
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370 | if (!is_null($savepoint)) { |
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371 | if (!$this->supports('savepoints')) { |
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372 | return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, |
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373 | 'savepoints are not supported', __FUNCTION__); |
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374 | } |
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375 | $server_info = $this->getServerVersion(); |
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376 | if (version_compare($server_info['major'].'.'.$server_info['minor'].'.'.$server_info['patch'], '5.0.3', '<')) { |
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377 | return MDB2_OK; |
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378 | } |
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379 | $query = 'RELEASE SAVEPOINT '.$savepoint; |
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380 | return $this->_doQuery($query, true); |
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381 | } |
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382 | |
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383 | if (!$this->supports('transactions')) { |
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384 | return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, |
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385 | 'transactions are not supported', __FUNCTION__); |
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386 | } |
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387 | |
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388 | $result =& $this->_doQuery('COMMIT', true); |
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389 | if (PEAR::isError($result)) { |
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390 | return $result; |
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391 | } |
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392 | if (!$this->start_transaction) { |
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393 | $query = 'SET AUTOCOMMIT = 1'; |
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394 | $result =& $this->_doQuery($query, true); |
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395 | if (PEAR::isError($result)) { |
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396 | return $result; |
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397 | } |
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398 | } |
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399 | $this->in_transaction = false; |
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400 | return MDB2_OK; |
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401 | } |
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402 | |
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403 | // }}} |
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404 | // {{{ rollback() |
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405 | |
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406 | /** |
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407 | * Cancel any database changes done during a transaction or since a specific |
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408 | * savepoint that is in progress. This function may only be called when |
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409 | * auto-committing is disabled, otherwise it will fail. Therefore, a new |
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410 | * transaction is implicitly started after canceling the pending changes. |
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411 | * |
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412 | * @param string name of a savepoint to rollback to |
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413 | * @return mixed MDB2_OK on success, a MDB2 error on failure |
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414 | * |
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415 | * @access public |
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416 | */ |
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417 | function rollback($savepoint = null) |
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418 | { |
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419 | $this->debug('Rolling back transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint)); |
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420 | if (!$this->in_transaction) { |
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421 | return $this->raiseError(MDB2_ERROR_INVALID, null, null, |
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422 | 'rollback cannot be done changes are auto committed', __FUNCTION__); |
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423 | } |
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424 | if (!is_null($savepoint)) { |
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425 | if (!$this->supports('savepoints')) { |
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426 | return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, |
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427 | 'savepoints are not supported', __FUNCTION__); |
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428 | } |
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429 | $query = 'ROLLBACK TO SAVEPOINT '.$savepoint; |
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430 | return $this->_doQuery($query, true); |
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431 | } |
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432 | |
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433 | $query = 'ROLLBACK'; |
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434 | $result =& $this->_doQuery($query, true); |
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435 | if (PEAR::isError($result)) { |
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436 | return $result; |
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437 | } |
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438 | if (!$this->start_transaction) { |
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439 | $query = 'SET AUTOCOMMIT = 1'; |
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440 | $result =& $this->_doQuery($query, true); |
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441 | if (PEAR::isError($result)) { |
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442 | return $result; |
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443 | } |
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444 | } |
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445 | $this->in_transaction = false; |
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446 | return MDB2_OK; |
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447 | } |
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448 | |
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449 | // }}} |
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450 | // {{{ function setTransactionIsolation() |
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451 | |
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452 | /** |
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453 | * Set the transacton isolation level. |
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454 | * |
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455 | * @param string standard isolation level |
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456 | * READ UNCOMMITTED (allows dirty reads) |
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457 | * READ COMMITTED (prevents dirty reads) |
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458 | * REPEATABLE READ (prevents nonrepeatable reads) |
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459 | * SERIALIZABLE (prevents phantom reads) |
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460 | * @return mixed MDB2_OK on success, a MDB2 error on failure |
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461 | * |
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462 | * @access public |
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463 | * @since 2.1.1 |
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464 | */ |
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465 | function setTransactionIsolation($isolation) |
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466 | { |
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467 | $this->debug('Setting transaction isolation level', __FUNCTION__, array('is_manip' => true)); |
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468 | if (!$this->supports('transactions')) { |
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469 | return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, |
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470 | 'transactions are not supported', __FUNCTION__); |
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471 | } |
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472 | switch ($isolation) { |
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473 | case 'READ UNCOMMITTED': |
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474 | case 'READ COMMITTED': |
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475 | case 'REPEATABLE READ': |
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476 | case 'SERIALIZABLE': |
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477 | break; |
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478 | default: |
---|
479 | return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, |
---|
480 | 'isolation level is not supported: '.$isolation, __FUNCTION__); |
---|
481 | } |
---|
482 | |
---|
483 | $query = "SET SESSION TRANSACTION ISOLATION LEVEL $isolation"; |
---|
484 | return $this->_doQuery($query, true); |
---|
485 | } |
---|
486 | |
---|
487 | // }}} |
---|
488 | // {{{ _doConnect() |
---|
489 | |
---|
490 | /** |
---|
491 | * do the grunt work of the connect |
---|
492 | * |
---|
493 | * @return connection on success or MDB2 Error Object on failure |
---|
494 | * @access protected |
---|
495 | */ |
---|
496 | function _doConnect($username, $password, $persistent = false) |
---|
497 | { |
---|
498 | if (!PEAR::loadExtension($this->phptype)) { |
---|
499 | return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null, |
---|
500 | 'extension '.$this->phptype.' is not compiled into PHP', __FUNCTION__); |
---|
501 | } |
---|
502 | |
---|
503 | $params = array(); |
---|
504 | if ($this->dsn['protocol'] && $this->dsn['protocol'] == 'unix') { |
---|
505 | $params[0] = ':' . $this->dsn['socket']; |
---|
506 | } else { |
---|
507 | $params[0] = $this->dsn['hostspec'] ? $this->dsn['hostspec'] |
---|
508 | : 'localhost'; |
---|
509 | if ($this->dsn['port']) { |
---|
510 | $params[0].= ':' . $this->dsn['port']; |
---|
511 | } |
---|
512 | } |
---|
513 | $params[] = $username ? $username : null; |
---|
514 | $params[] = $password ? $password : null; |
---|
515 | if (!$persistent) { |
---|
516 | if ($this->_isNewLinkSet()) { |
---|
517 | $params[] = true; |
---|
518 | } else { |
---|
519 | $params[] = false; |
---|
520 | } |
---|
521 | } |
---|
522 | if (version_compare(phpversion(), '4.3.0', '>=')) { |
---|
523 | $params[] = isset($this->dsn['client_flags']) |
---|
524 | ? $this->dsn['client_flags'] : null; |
---|
525 | } |
---|
526 | $connect_function = $persistent ? 'mysql_pconnect' : 'mysql_connect'; |
---|
527 | |
---|
528 | $connection = @call_user_func_array($connect_function, $params); |
---|
529 | if (!$connection) { |
---|
530 | if (($err = @mysql_error()) != '') { |
---|
531 | return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null, |
---|
532 | $err, __FUNCTION__); |
---|
533 | } else { |
---|
534 | return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null, |
---|
535 | 'unable to establish a connection', __FUNCTION__); |
---|
536 | } |
---|
537 | } |
---|
538 | |
---|
539 | if (!empty($this->dsn['charset'])) { |
---|
540 | $result = $this->setCharset($this->dsn['charset'], $connection); |
---|
541 | if (PEAR::isError($result)) { |
---|
542 | $this->disconnect(false); |
---|
543 | return $result; |
---|
544 | } |
---|
545 | } |
---|
546 | |
---|
547 | return $connection; |
---|
548 | } |
---|
549 | |
---|
550 | // }}} |
---|
551 | // {{{ connect() |
---|
552 | |
---|
553 | /** |
---|
554 | * Connect to the database |
---|
555 | * |
---|
556 | * @return MDB2_OK on success, MDB2 Error Object on failure |
---|
557 | * @access public |
---|
558 | */ |
---|
559 | function connect() |
---|
560 | { |
---|
561 | if (is_resource($this->connection)) { |
---|
562 | //if (count(array_diff($this->connected_dsn, $this->dsn)) == 0 |
---|
563 | if (MDB2::areEquals($this->connected_dsn, $this->dsn) |
---|
564 | && $this->opened_persistent == $this->options['persistent'] |
---|
565 | ) { |
---|
566 | return MDB2_OK; |
---|
567 | } |
---|
568 | $this->disconnect(false); |
---|
569 | } |
---|
570 | |
---|
571 | $connection = $this->_doConnect( |
---|
572 | $this->dsn['username'], |
---|
573 | $this->dsn['password'], |
---|
574 | $this->options['persistent'] |
---|
575 | ); |
---|
576 | if (PEAR::isError($connection)) { |
---|
577 | return $connection; |
---|
578 | } |
---|
579 | |
---|
580 | $this->connection = $connection; |
---|
581 | $this->connected_dsn = $this->dsn; |
---|
582 | $this->connected_database_name = ''; |
---|
583 | $this->opened_persistent = $this->options['persistent']; |
---|
584 | $this->dbsyntax = $this->dsn['dbsyntax'] ? $this->dsn['dbsyntax'] : $this->phptype; |
---|
585 | |
---|
586 | if ($this->database_name) { |
---|
587 | if ($this->database_name != $this->connected_database_name) { |
---|
588 | if (!@mysql_select_db($this->database_name, $connection)) { |
---|
589 | $err = $this->raiseError(null, null, null, |
---|
590 | 'Could not select the database: '.$this->database_name, __FUNCTION__); |
---|
591 | return $err; |
---|
592 | } |
---|
593 | $this->connected_database_name = $this->database_name; |
---|
594 | } |
---|
595 | } |
---|
596 | |
---|
597 | $this->_getServerCapabilities(); |
---|
598 | |
---|
599 | return MDB2_OK; |
---|
600 | } |
---|
601 | |
---|
602 | // }}} |
---|
603 | // {{{ setCharset() |
---|
604 | |
---|
605 | /** |
---|
606 | * Set the charset on the current connection |
---|
607 | * |
---|
608 | * @param string charset (or array(charset, collation)) |
---|
609 | * @param resource connection handle |
---|
610 | * |
---|
611 | * @return true on success, MDB2 Error Object on failure |
---|
612 | */ |
---|
613 | function setCharset($charset, $connection = null) |
---|
614 | { |
---|
615 | if (is_null($connection)) { |
---|
616 | $connection = $this->getConnection(); |
---|
617 | if (PEAR::isError($connection)) { |
---|
618 | return $connection; |
---|
619 | } |
---|
620 | } |
---|
621 | $collation = null; |
---|
622 | if (is_array($charset) && 2 == count($charset)) { |
---|
623 | $collation = array_pop($charset); |
---|
624 | $charset = array_pop($charset); |
---|
625 | } |
---|
626 | $client_info = mysql_get_client_info(); |
---|
627 | if (function_exists('mysql_set_charset') && version_compare($client_info, '5.0.6')) { |
---|
628 | if (!$result = mysql_set_charset($charset, $connection)) { |
---|
629 | $err =& $this->raiseError(null, null, null, |
---|
630 | 'Could not set client character set', __FUNCTION__); |
---|
631 | return $err; |
---|
632 | } |
---|
633 | return $result; |
---|
634 | } |
---|
635 | $query = "SET NAMES '".mysql_real_escape_string($charset, $connection)."'"; |
---|
636 | if (!is_null($collation)) { |
---|
637 | $query .= " COLLATE '".mysqli_real_escape_string($connection, $collation)."'"; |
---|
638 | } |
---|
639 | return $this->_doQuery($query, true, $connection); |
---|
640 | } |
---|
641 | |
---|
642 | // }}} |
---|
643 | // {{{ databaseExists() |
---|
644 | |
---|
645 | /** |
---|
646 | * check if given database name is exists? |
---|
647 | * |
---|
648 | * @param string $name name of the database that should be checked |
---|
649 | * |
---|
650 | * @return mixed true/false on success, a MDB2 error on failure |
---|
651 | * @access public |
---|
652 | */ |
---|
653 | function databaseExists($name) |
---|
654 | { |
---|
655 | $connection = $this->_doConnect($this->dsn['username'], |
---|
656 | $this->dsn['password'], |
---|
657 | $this->options['persistent']); |
---|
658 | if (PEAR::isError($connection)) { |
---|
659 | return $connection; |
---|
660 | } |
---|
661 | |
---|
662 | $result = @mysql_select_db($name, $connection); |
---|
663 | @mysql_close($connection); |
---|
664 | |
---|
665 | return $result; |
---|
666 | } |
---|
667 | |
---|
668 | // }}} |
---|
669 | // {{{ disconnect() |
---|
670 | |
---|
671 | /** |
---|
672 | * Log out and disconnect from the database. |
---|
673 | * |
---|
674 | * @param boolean $force if the disconnect should be forced even if the |
---|
675 | * connection is opened persistently |
---|
676 | * @return mixed true on success, false if not connected and error |
---|
677 | * object on error |
---|
678 | * @access public |
---|
679 | */ |
---|
680 | function disconnect($force = true) |
---|
681 | { |
---|
682 | if (is_resource($this->connection)) { |
---|
683 | if ($this->in_transaction) { |
---|
684 | $dsn = $this->dsn; |
---|
685 | $database_name = $this->database_name; |
---|
686 | $persistent = $this->options['persistent']; |
---|
687 | $this->dsn = $this->connected_dsn; |
---|
688 | $this->database_name = $this->connected_database_name; |
---|
689 | $this->options['persistent'] = $this->opened_persistent; |
---|
690 | $this->rollback(); |
---|
691 | $this->dsn = $dsn; |
---|
692 | $this->database_name = $database_name; |
---|
693 | $this->options['persistent'] = $persistent; |
---|
694 | } |
---|
695 | |
---|
696 | if (!$this->opened_persistent || $force) { |
---|
697 | $ok = @mysql_close($this->connection); |
---|
698 | if (!$ok) { |
---|
699 | return $this->raiseError(MDB2_ERROR_DISCONNECT_FAILED, |
---|
700 | null, null, null, __FUNCTION__); |
---|
701 | } |
---|
702 | } |
---|
703 | } else { |
---|
704 | return false; |
---|
705 | } |
---|
706 | return parent::disconnect($force); |
---|
707 | } |
---|
708 | |
---|
709 | // }}} |
---|
710 | // {{{ standaloneQuery() |
---|
711 | |
---|
712 | /** |
---|
713 | * execute a query as DBA |
---|
714 | * |
---|
715 | * @param string $query the SQL query |
---|
716 | * @param mixed $types array that contains the types of the columns in |
---|
717 | * the result set |
---|
718 | * @param boolean $is_manip if the query is a manipulation query |
---|
719 | * @return mixed MDB2_OK on success, a MDB2 error on failure |
---|
720 | * @access public |
---|
721 | */ |
---|
722 | function &standaloneQuery($query, $types = null, $is_manip = false) |
---|
723 | { |
---|
724 | $user = $this->options['DBA_username']? $this->options['DBA_username'] : $this->dsn['username']; |
---|
725 | $pass = $this->options['DBA_password']? $this->options['DBA_password'] : $this->dsn['password']; |
---|
726 | $connection = $this->_doConnect($user, $pass, $this->options['persistent']); |
---|
727 | if (PEAR::isError($connection)) { |
---|
728 | return $connection; |
---|
729 | } |
---|
730 | |
---|
731 | $offset = $this->offset; |
---|
732 | $limit = $this->limit; |
---|
733 | $this->offset = $this->limit = 0; |
---|
734 | $query = $this->_modifyQuery($query, $is_manip, $limit, $offset); |
---|
735 | |
---|
736 | $result =& $this->_doQuery($query, $is_manip, $connection, $this->database_name); |
---|
737 | if (!PEAR::isError($result)) { |
---|
738 | $result = $this->_affectedRows($connection, $result); |
---|
739 | } |
---|
740 | |
---|
741 | @mysql_close($connection); |
---|
742 | return $result; |
---|
743 | } |
---|
744 | |
---|
745 | // }}} |
---|
746 | // {{{ _doQuery() |
---|
747 | |
---|
748 | /** |
---|
749 | * Execute a query |
---|
750 | * @param string $query query |
---|
751 | * @param boolean $is_manip if the query is a manipulation query |
---|
752 | * @param resource $connection |
---|
753 | * @param string $database_name |
---|
754 | * @return result or error object |
---|
755 | * @access protected |
---|
756 | */ |
---|
757 | function &_doQuery($query, $is_manip = false, $connection = null, $database_name = null) |
---|
758 | { |
---|
759 | $this->last_query = $query; |
---|
760 | $result = $this->debug($query, 'query', array('is_manip' => $is_manip, 'when' => 'pre')); |
---|
761 | if ($result) { |
---|
762 | if (PEAR::isError($result)) { |
---|
763 | return $result; |
---|
764 | } |
---|
765 | $query = $result; |
---|
766 | } |
---|
767 | if ($this->options['disable_query']) { |
---|
768 | $result = $is_manip ? 0 : null; |
---|
769 | return $result; |
---|
770 | } |
---|
771 | |
---|
772 | if (is_null($connection)) { |
---|
773 | $connection = $this->getConnection(); |
---|
774 | if (PEAR::isError($connection)) { |
---|
775 | return $connection; |
---|
776 | } |
---|
777 | } |
---|
778 | if (is_null($database_name)) { |
---|
779 | $database_name = $this->database_name; |
---|
780 | } |
---|
781 | |
---|
782 | if ($database_name) { |
---|
783 | if ($database_name != $this->connected_database_name) { |
---|
784 | if (!@mysql_select_db($database_name, $connection)) { |
---|
785 | $err = $this->raiseError(null, null, null, |
---|
786 | 'Could not select the database: '.$database_name, __FUNCTION__); |
---|
787 | return $err; |
---|
788 | } |
---|
789 | $this->connected_database_name = $database_name; |
---|
790 | } |
---|
791 | } |
---|
792 | |
---|
793 | $function = $this->options['result_buffering'] |
---|
794 | ? 'mysql_query' : 'mysql_unbuffered_query'; |
---|
795 | $result = @$function($query, $connection); |
---|
796 | if (!$result) { |
---|
797 | $err =& $this->raiseError(null, null, null, |
---|
798 | 'Could not execute statement', __FUNCTION__); |
---|
799 | return $err; |
---|
800 | } |
---|
801 | |
---|
802 | $this->debug($query, 'query', array('is_manip' => $is_manip, 'when' => 'post', 'result' => $result)); |
---|
803 | return $result; |
---|
804 | } |
---|
805 | |
---|
806 | // }}} |
---|
807 | // {{{ _affectedRows() |
---|
808 | |
---|
809 | /** |
---|
810 | * Returns the number of rows affected |
---|
811 | * |
---|
812 | * @param resource $result |
---|
813 | * @param resource $connection |
---|
814 | * @return mixed MDB2 Error Object or the number of rows affected |
---|
815 | * @access private |
---|
816 | */ |
---|
817 | function _affectedRows($connection, $result = null) |
---|
818 | { |
---|
819 | if (is_null($connection)) { |
---|
820 | $connection = $this->getConnection(); |
---|
821 | if (PEAR::isError($connection)) { |
---|
822 | return $connection; |
---|
823 | } |
---|
824 | } |
---|
825 | return @mysql_affected_rows($connection); |
---|
826 | } |
---|
827 | |
---|
828 | // }}} |
---|
829 | // {{{ _modifyQuery() |
---|
830 | |
---|
831 | /** |
---|
832 | * Changes a query string for various DBMS specific reasons |
---|
833 | * |
---|
834 | * @param string $query query to modify |
---|
835 | * @param boolean $is_manip if it is a DML query |
---|
836 | * @param integer $limit limit the number of rows |
---|
837 | * @param integer $offset start reading from given offset |
---|
838 | * @return string modified query |
---|
839 | * @access protected |
---|
840 | */ |
---|
841 | function _modifyQuery($query, $is_manip, $limit, $offset) |
---|
842 | { |
---|
843 | if ($this->options['portability'] & MDB2_PORTABILITY_DELETE_COUNT) { |
---|
844 | // "DELETE FROM table" gives 0 affected rows in MySQL. |
---|
845 | // This little hack lets you know how many rows were deleted. |
---|
846 | if (preg_match('/^\s*DELETE\s+FROM\s+(\S+)\s*$/i', $query)) { |
---|
847 | $query = preg_replace('/^\s*DELETE\s+FROM\s+(\S+)\s*$/', |
---|
848 | 'DELETE FROM \1 WHERE 1=1', $query); |
---|
849 | } |
---|
850 | } |
---|
851 | if ($limit > 0 |
---|
852 | && !preg_match('/LIMIT\s*\d(?:\s*(?:,|OFFSET)\s*\d+)?(?:[^\)]*)?$/i', $query) |
---|
853 | ) { |
---|
854 | $query = rtrim($query); |
---|
855 | if (substr($query, -1) == ';') { |
---|
856 | $query = substr($query, 0, -1); |
---|
857 | } |
---|
858 | |
---|
859 | // LIMIT doesn't always come last in the query |
---|
860 | // @see http://dev.mysql.com/doc/refman/5.0/en/select.html |
---|
861 | $after = ''; |
---|
862 | if (preg_match('/(\s+INTO\s+(?:OUT|DUMP)FILE\s.*)$/ims', $query, $matches)) { |
---|
863 | $after = $matches[0]; |
---|
864 | $query = preg_replace('/(\s+INTO\s+(?:OUT|DUMP)FILE\s.*)$/ims', '', $query); |
---|
865 | } elseif (preg_match('/(\s+FOR\s+UPDATE\s*)$/i', $query, $matches)) { |
---|
866 | $after = $matches[0]; |
---|
867 | $query = preg_replace('/(\s+FOR\s+UPDATE\s*)$/im', '', $query); |
---|
868 | } elseif (preg_match('/(\s+LOCK\s+IN\s+SHARE\s+MODE\s*)$/im', $query, $matches)) { |
---|
869 | $after = $matches[0]; |
---|
870 | $query = preg_replace('/(\s+LOCK\s+IN\s+SHARE\s+MODE\s*)$/im', '', $query); |
---|
871 | } |
---|
872 | |
---|
873 | if ($is_manip) { |
---|
874 | return $query . " LIMIT $limit" . $after; |
---|
875 | } else { |
---|
876 | return $query . " LIMIT $offset, $limit" . $after; |
---|
877 | } |
---|
878 | } |
---|
879 | return $query; |
---|
880 | } |
---|
881 | |
---|
882 | // }}} |
---|
883 | // {{{ getServerVersion() |
---|
884 | |
---|
885 | /** |
---|
886 | * return version information about the server |
---|
887 | * |
---|
888 | * @param bool $native determines if the raw version string should be returned |
---|
889 | * @return mixed array/string with version information or MDB2 error object |
---|
890 | * @access public |
---|
891 | */ |
---|
892 | function getServerVersion($native = false) |
---|
893 | { |
---|
894 | $connection = $this->getConnection(); |
---|
895 | if (PEAR::isError($connection)) { |
---|
896 | return $connection; |
---|
897 | } |
---|
898 | if ($this->connected_server_info) { |
---|
899 | $server_info = $this->connected_server_info; |
---|
900 | } else { |
---|
901 | $server_info = @mysql_get_server_info($connection); |
---|
902 | } |
---|
903 | if (!$server_info) { |
---|
904 | return $this->raiseError(null, null, null, |
---|
905 | 'Could not get server information', __FUNCTION__); |
---|
906 | } |
---|
907 | // cache server_info |
---|
908 | $this->connected_server_info = $server_info; |
---|
909 | if (!$native) { |
---|
910 | $tmp = explode('.', $server_info, 3); |
---|
911 | if (isset($tmp[2]) && strpos($tmp[2], '-')) { |
---|
912 | $tmp2 = explode('-', @$tmp[2], 2); |
---|
913 | } else { |
---|
914 | $tmp2[0] = isset($tmp[2]) ? $tmp[2] : null; |
---|
915 | $tmp2[1] = null; |
---|
916 | } |
---|
917 | $server_info = array( |
---|
918 | 'major' => isset($tmp[0]) ? $tmp[0] : null, |
---|
919 | 'minor' => isset($tmp[1]) ? $tmp[1] : null, |
---|
920 | 'patch' => $tmp2[0], |
---|
921 | 'extra' => $tmp2[1], |
---|
922 | 'native' => $server_info, |
---|
923 | ); |
---|
924 | } |
---|
925 | return $server_info; |
---|
926 | } |
---|
927 | |
---|
928 | // }}} |
---|
929 | // {{{ _getServerCapabilities() |
---|
930 | |
---|
931 | /** |
---|
932 | * Fetch some information about the server capabilities |
---|
933 | * (transactions, subselects, prepared statements, etc). |
---|
934 | * |
---|
935 | * @access private |
---|
936 | */ |
---|
937 | function _getServerCapabilities() |
---|
938 | { |
---|
939 | if (!$this->server_capabilities_checked) { |
---|
940 | $this->server_capabilities_checked = true; |
---|
941 | |
---|
942 | //set defaults |
---|
943 | $this->supported['sub_selects'] = 'emulated'; |
---|
944 | $this->supported['prepared_statements'] = 'emulated'; |
---|
945 | $this->supported['triggers'] = false; |
---|
946 | $this->start_transaction = false; |
---|
947 | $this->varchar_max_length = 255; |
---|
948 | |
---|
949 | $server_info = $this->getServerVersion(); |
---|
950 | if (is_array($server_info)) { |
---|
951 | $server_version = $server_info['major'].'.'.$server_info['minor'].'.'.$server_info['patch']; |
---|
952 | |
---|
953 | if (!version_compare($server_version, '4.1.0', '<')) { |
---|
954 | $this->supported['sub_selects'] = true; |
---|
955 | $this->supported['prepared_statements'] = true; |
---|
956 | } |
---|
957 | |
---|
958 | // SAVEPOINTs were introduced in MySQL 4.0.14 and 4.1.1 (InnoDB) |
---|
959 | if (version_compare($server_version, '4.1.0', '>=')) { |
---|
960 | if (version_compare($server_version, '4.1.1', '<')) { |
---|
961 | $this->supported['savepoints'] = false; |
---|
962 | } |
---|
963 | } elseif (version_compare($server_version, '4.0.14', '<')) { |
---|
964 | $this->supported['savepoints'] = false; |
---|
965 | } |
---|
966 | |
---|
967 | if (!version_compare($server_version, '4.0.11', '<')) { |
---|
968 | $this->start_transaction = true; |
---|
969 | } |
---|
970 | |
---|
971 | if (!version_compare($server_version, '5.0.3', '<')) { |
---|
972 | $this->varchar_max_length = 65532; |
---|
973 | } |
---|
974 | |
---|
975 | if (!version_compare($server_version, '5.0.2', '<')) { |
---|
976 | $this->supported['triggers'] = true; |
---|
977 | } |
---|
978 | } |
---|
979 | } |
---|
980 | } |
---|
981 | |
---|
982 | // }}} |
---|
983 | // {{{ function _skipUserDefinedVariable($query, $position) |
---|
984 | |
---|
985 | /** |
---|
986 | * Utility method, used by prepare() to avoid misinterpreting MySQL user |
---|
987 | * defined variables (SELECT @x:=5) for placeholders. |
---|
988 | * Check if the placeholder is a false positive, i.e. if it is an user defined |
---|
989 | * variable instead. If so, skip it and advance the position, otherwise |
---|
990 | * return the current position, which is valid |
---|
991 | * |
---|
992 | * @param string $query |
---|
993 | * @param integer $position current string cursor position |
---|
994 | * @return integer $new_position |
---|
995 | * @access protected |
---|
996 | */ |
---|
997 | function _skipUserDefinedVariable($query, $position) |
---|
998 | { |
---|
999 | $found = strpos(strrev(substr($query, 0, $position)), '@'); |
---|
1000 | if ($found === false) { |
---|
1001 | return $position; |
---|
1002 | } |
---|
1003 | $pos = strlen($query) - strlen(substr($query, $position)) - $found - 1; |
---|
1004 | $substring = substr($query, $pos, $position - $pos + 2); |
---|
1005 | if (preg_match('/^@\w+\s*:=$/', $substring)) { |
---|
1006 | return $position + 1; //found an user defined variable: skip it |
---|
1007 | } |
---|
1008 | return $position; |
---|
1009 | } |
---|
1010 | |
---|
1011 | // }}} |
---|
1012 | // {{{ prepare() |
---|
1013 | |
---|
1014 | /** |
---|
1015 | * Prepares a query for multiple execution with execute(). |
---|
1016 | * With some database backends, this is emulated. |
---|
1017 | * prepare() requires a generic query as string like |
---|
1018 | * 'INSERT INTO numbers VALUES(?,?)' or |
---|
1019 | * 'INSERT INTO numbers VALUES(:foo,:bar)'. |
---|
1020 | * The ? and :name and are placeholders which can be set using |
---|
1021 | * bindParam() and the query can be sent off using the execute() method. |
---|
1022 | * The allowed format for :name can be set with the 'bindname_format' option. |
---|
1023 | * |
---|
1024 | * @param string $query the query to prepare |
---|
1025 | * @param mixed $types array that contains the types of the placeholders |
---|
1026 | * @param mixed $result_types array that contains the types of the columns in |
---|
1027 | * the result set or MDB2_PREPARE_RESULT, if set to |
---|
1028 | * MDB2_PREPARE_MANIP the query is handled as a manipulation query |
---|
1029 | * @param mixed $lobs key (field) value (parameter) pair for all lob placeholders |
---|
1030 | * @return mixed resource handle for the prepared query on success, a MDB2 |
---|
1031 | * error on failure |
---|
1032 | * @access public |
---|
1033 | * @see bindParam, execute |
---|
1034 | */ |
---|
1035 | function &prepare($query, $types = null, $result_types = null, $lobs = array()) |
---|
1036 | { |
---|
1037 | if ($this->options['emulate_prepared'] |
---|
1038 | || $this->supported['prepared_statements'] !== true |
---|
1039 | ) { |
---|
1040 | $obj =& parent::prepare($query, $types, $result_types, $lobs); |
---|
1041 | return $obj; |
---|
1042 | } |
---|
1043 | $is_manip = ($result_types === MDB2_PREPARE_MANIP); |
---|
1044 | $offset = $this->offset; |
---|
1045 | $limit = $this->limit; |
---|
1046 | $this->offset = $this->limit = 0; |
---|
1047 | $query = $this->_modifyQuery($query, $is_manip, $limit, $offset); |
---|
1048 | $result = $this->debug($query, __FUNCTION__, array('is_manip' => $is_manip, 'when' => 'pre')); |
---|
1049 | if ($result) { |
---|
1050 | if (PEAR::isError($result)) { |
---|
1051 | return $result; |
---|
1052 | } |
---|
1053 | $query = $result; |
---|
1054 | } |
---|
1055 | $placeholder_type_guess = $placeholder_type = null; |
---|
1056 | $question = '?'; |
---|
1057 | $colon = ':'; |
---|
1058 | $positions = array(); |
---|
1059 | $position = 0; |
---|
1060 | while ($position < strlen($query)) { |
---|
1061 | $q_position = strpos($query, $question, $position); |
---|
1062 | $c_position = strpos($query, $colon, $position); |
---|
1063 | if ($q_position && $c_position) { |
---|
1064 | $p_position = min($q_position, $c_position); |
---|
1065 | } elseif ($q_position) { |
---|
1066 | $p_position = $q_position; |
---|
1067 | } elseif ($c_position) { |
---|
1068 | $p_position = $c_position; |
---|
1069 | } else { |
---|
1070 | break; |
---|
1071 | } |
---|
1072 | if (is_null($placeholder_type)) { |
---|
1073 | $placeholder_type_guess = $query[$p_position]; |
---|
1074 | } |
---|
1075 | |
---|
1076 | $new_pos = $this->_skipDelimitedStrings($query, $position, $p_position); |
---|
1077 | if (PEAR::isError($new_pos)) { |
---|
1078 | return $new_pos; |
---|
1079 | } |
---|
1080 | if ($new_pos != $position) { |
---|
1081 | $position = $new_pos; |
---|
1082 | continue; //evaluate again starting from the new position |
---|
1083 | } |
---|
1084 | |
---|
1085 | //make sure this is not part of an user defined variable |
---|
1086 | $new_pos = $this->_skipUserDefinedVariable($query, $position); |
---|
1087 | if ($new_pos != $position) { |
---|
1088 | $position = $new_pos; |
---|
1089 | continue; //evaluate again starting from the new position |
---|
1090 | } |
---|
1091 | |
---|
1092 | if ($query[$position] == $placeholder_type_guess) { |
---|
1093 | if (is_null($placeholder_type)) { |
---|
1094 | $placeholder_type = $query[$p_position]; |
---|
1095 | $question = $colon = $placeholder_type; |
---|
1096 | } |
---|
1097 | if ($placeholder_type == ':') { |
---|
1098 | $regexp = '/^.{'.($position+1).'}('.$this->options['bindname_format'].').*$/s'; |
---|
1099 | $parameter = preg_replace($regexp, '\\1', $query); |
---|
1100 | if ($parameter === '') { |
---|
1101 | $err =& $this->raiseError(MDB2_ERROR_SYNTAX, null, null, |
---|
1102 | 'named parameter name must match "bindname_format" option', __FUNCTION__); |
---|
1103 | return $err; |
---|
1104 | } |
---|
1105 | $positions[$p_position] = $parameter; |
---|
1106 | $query = substr_replace($query, '?', $position, strlen($parameter)+1); |
---|
1107 | } else { |
---|
1108 | $positions[$p_position] = count($positions); |
---|
1109 | } |
---|
1110 | $position = $p_position + 1; |
---|
1111 | } else { |
---|
1112 | $position = $p_position; |
---|
1113 | } |
---|
1114 | } |
---|
1115 | $connection = $this->getConnection(); |
---|
1116 | if (PEAR::isError($connection)) { |
---|
1117 | return $connection; |
---|
1118 | } |
---|
1119 | static $prep_statement_counter = 1; |
---|
1120 | $statement_name = sprintf($this->options['statement_format'], $this->phptype, $prep_statement_counter++ . sha1(microtime() + mt_rand())); |
---|
1121 | $statement_name = substr(strtolower($statement_name), 0, $this->options['max_identifiers_length']); |
---|
1122 | $query = "PREPARE $statement_name FROM ".$this->quote($query, 'text'); |
---|
1123 | $statement =& $this->_doQuery($query, true, $connection); |
---|
1124 | if (PEAR::isError($statement)) { |
---|
1125 | return $statement; |
---|
1126 | } |
---|
1127 | |
---|
1128 | $class_name = 'MDB2_Statement_'.$this->phptype; |
---|
1129 | $obj = new $class_name($this, $statement_name, $positions, $query, $types, $result_types, $is_manip, $limit, $offset); |
---|
1130 | $this->debug($query, __FUNCTION__, array('is_manip' => $is_manip, 'when' => 'post', 'result' => $obj)); |
---|
1131 | return $obj; |
---|
1132 | } |
---|
1133 | |
---|
1134 | // }}} |
---|
1135 | // {{{ replace() |
---|
1136 | |
---|
1137 | /** |
---|
1138 | * Execute a SQL REPLACE query. A REPLACE query is identical to a INSERT |
---|
1139 | * query, except that if there is already a row in the table with the same |
---|
1140 | * key field values, the old row is deleted before the new row is inserted. |
---|
1141 | * |
---|
1142 | * The REPLACE type of query does not make part of the SQL standards. Since |
---|
1143 | * practically only MySQL implements it natively, this type of query is |
---|
1144 | * emulated through this method for other DBMS using standard types of |
---|
1145 | * queries inside a transaction to assure the atomicity of the operation. |
---|
1146 | * |
---|
1147 | * @access public |
---|
1148 | * |
---|
1149 | * @param string $table name of the table on which the REPLACE query will |
---|
1150 | * be executed. |
---|
1151 | * @param array $fields associative array that describes the fields and the |
---|
1152 | * values that will be inserted or updated in the specified table. The |
---|
1153 | * indexes of the array are the names of all the fields of the table. The |
---|
1154 | * values of the array are also associative arrays that describe the |
---|
1155 | * values and other properties of the table fields. |
---|
1156 | * |
---|
1157 | * Here follows a list of field properties that need to be specified: |
---|
1158 | * |
---|
1159 | * value: |
---|
1160 | * Value to be assigned to the specified field. This value may be |
---|
1161 | * of specified in database independent type format as this |
---|
1162 | * function can perform the necessary datatype conversions. |
---|
1163 | * |
---|
1164 | * Default: |
---|
1165 | * this property is required unless the Null property |
---|
1166 | * is set to 1. |
---|
1167 | * |
---|
1168 | * type |
---|
1169 | * Name of the type of the field. Currently, all types Metabase |
---|
1170 | * are supported except for clob and blob. |
---|
1171 | * |
---|
1172 | * Default: no type conversion |
---|
1173 | * |
---|
1174 | * null |
---|
1175 | * Boolean property that indicates that the value for this field |
---|
1176 | * should be set to null. |
---|
1177 | * |
---|
1178 | * The default value for fields missing in INSERT queries may be |
---|
1179 | * specified the definition of a table. Often, the default value |
---|
1180 | * is already null, but since the REPLACE may be emulated using |
---|
1181 | * an UPDATE query, make sure that all fields of the table are |
---|
1182 | * listed in this function argument array. |
---|
1183 | * |
---|
1184 | * Default: 0 |
---|
1185 | * |
---|
1186 | * key |
---|
1187 | * Boolean property that indicates that this field should be |
---|
1188 | * handled as a primary key or at least as part of the compound |
---|
1189 | * unique index of the table that will determine the row that will |
---|
1190 | * updated if it exists or inserted a new row otherwise. |
---|
1191 | * |
---|
1192 | * This function will fail if no key field is specified or if the |
---|
1193 | * value of a key field is set to null because fields that are |
---|
1194 | * part of unique index they may not be null. |
---|
1195 | * |
---|
1196 | * Default: 0 |
---|
1197 | * |
---|
1198 | * @see http://dev.mysql.com/doc/refman/5.0/en/replace.html |
---|
1199 | * @return mixed MDB2_OK on success, a MDB2 error on failure |
---|
1200 | */ |
---|
1201 | function replace($table, $fields) |
---|
1202 | { |
---|
1203 | $count = count($fields); |
---|
1204 | $query = $values = ''; |
---|
1205 | $keys = $colnum = 0; |
---|
1206 | for (reset($fields); $colnum < $count; next($fields), $colnum++) { |
---|
1207 | $name = key($fields); |
---|
1208 | if ($colnum > 0) { |
---|
1209 | $query .= ','; |
---|
1210 | $values.= ','; |
---|
1211 | } |
---|
1212 | $query.= $this->quoteIdentifier($name, true); |
---|
1213 | if (isset($fields[$name]['null']) && $fields[$name]['null']) { |
---|
1214 | $value = 'NULL'; |
---|
1215 | } else { |
---|
1216 | $type = isset($fields[$name]['type']) ? $fields[$name]['type'] : null; |
---|
1217 | $value = $this->quote($fields[$name]['value'], $type); |
---|
1218 | if (PEAR::isError($value)) { |
---|
1219 | return $value; |
---|
1220 | } |
---|
1221 | } |
---|
1222 | $values.= $value; |
---|
1223 | if (isset($fields[$name]['key']) && $fields[$name]['key']) { |
---|
1224 | if ($value === 'NULL') { |
---|
1225 | return $this->raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null, |
---|
1226 | 'key value '.$name.' may not be NULL', __FUNCTION__); |
---|
1227 | } |
---|
1228 | $keys++; |
---|
1229 | } |
---|
1230 | } |
---|
1231 | if ($keys == 0) { |
---|
1232 | return $this->raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null, |
---|
1233 | 'not specified which fields are keys', __FUNCTION__); |
---|
1234 | } |
---|
1235 | |
---|
1236 | $connection = $this->getConnection(); |
---|
1237 | if (PEAR::isError($connection)) { |
---|
1238 | return $connection; |
---|
1239 | } |
---|
1240 | |
---|
1241 | $table = $this->quoteIdentifier($table, true); |
---|
1242 | $query = "REPLACE INTO $table ($query) VALUES ($values)"; |
---|
1243 | $result =& $this->_doQuery($query, true, $connection); |
---|
1244 | if (PEAR::isError($result)) { |
---|
1245 | return $result; |
---|
1246 | } |
---|
1247 | return $this->_affectedRows($connection, $result); |
---|
1248 | } |
---|
1249 | |
---|
1250 | // }}} |
---|
1251 | // {{{ nextID() |
---|
1252 | |
---|
1253 | /** |
---|
1254 | * Returns the next free id of a sequence |
---|
1255 | * |
---|
1256 | * @param string $seq_name name of the sequence |
---|
1257 | * @param boolean $ondemand when true the sequence is |
---|
1258 | * automatic created, if it |
---|
1259 | * not exists |
---|
1260 | * |
---|
1261 | * @return mixed MDB2 Error Object or id |
---|
1262 | * @access public |
---|
1263 | */ |
---|
1264 | function nextID($seq_name, $ondemand = true) |
---|
1265 | { |
---|
1266 | $sequence_name = $this->quoteIdentifier($this->getSequenceName($seq_name), true); |
---|
1267 | $seqcol_name = $this->quoteIdentifier($this->options['seqcol_name'], true); |
---|
1268 | $query = "INSERT INTO $sequence_name ($seqcol_name) VALUES (NULL)"; |
---|
1269 | $this->pushErrorHandling(PEAR_ERROR_RETURN); |
---|
1270 | $this->expectError(MDB2_ERROR_NOSUCHTABLE); |
---|
1271 | $result =& $this->_doQuery($query, true); |
---|
1272 | $this->popExpect(); |
---|
1273 | $this->popErrorHandling(); |
---|
1274 | if (PEAR::isError($result)) { |
---|
1275 | if ($ondemand && $result->getCode() == MDB2_ERROR_NOSUCHTABLE) { |
---|
1276 | $this->loadModule('Manager', null, true); |
---|
1277 | $result = $this->manager->createSequence($seq_name); |
---|
1278 | if (PEAR::isError($result)) { |
---|
1279 | return $this->raiseError($result, null, null, |
---|
1280 | 'on demand sequence '.$seq_name.' could not be created', __FUNCTION__); |
---|
1281 | } else { |
---|
1282 | return $this->nextID($seq_name, false); |
---|
1283 | } |
---|
1284 | } |
---|
1285 | return $result; |
---|
1286 | } |
---|
1287 | $value = $this->lastInsertID(); |
---|
1288 | if (is_numeric($value)) { |
---|
1289 | $query = "DELETE FROM $sequence_name WHERE $seqcol_name < $value"; |
---|
1290 | $result =& $this->_doQuery($query, true); |
---|
1291 | if (PEAR::isError($result)) { |
---|
1292 | $this->warnings[] = 'nextID: could not delete previous sequence table values from '.$seq_name; |
---|
1293 | } |
---|
1294 | } |
---|
1295 | return $value; |
---|
1296 | } |
---|
1297 | |
---|
1298 | // }}} |
---|
1299 | // {{{ lastInsertID() |
---|
1300 | |
---|
1301 | /** |
---|
1302 | * Returns the autoincrement ID if supported or $id or fetches the current |
---|
1303 | * ID in a sequence called: $table.(empty($field) ? '' : '_'.$field) |
---|
1304 | * |
---|
1305 | * @param string $table name of the table into which a new row was inserted |
---|
1306 | * @param string $field name of the field into which a new row was inserted |
---|
1307 | * @return mixed MDB2 Error Object or id |
---|
1308 | * @access public |
---|
1309 | */ |
---|
1310 | function lastInsertID($table = null, $field = null) |
---|
1311 | { |
---|
1312 | // not using mysql_insert_id() due to http://pear.php.net/bugs/bug.php?id=8051 |
---|
1313 | return $this->queryOne('SELECT LAST_INSERT_ID()', 'integer'); |
---|
1314 | } |
---|
1315 | |
---|
1316 | // }}} |
---|
1317 | // {{{ currID() |
---|
1318 | |
---|
1319 | /** |
---|
1320 | * Returns the current id of a sequence |
---|
1321 | * |
---|
1322 | * @param string $seq_name name of the sequence |
---|
1323 | * @return mixed MDB2 Error Object or id |
---|
1324 | * @access public |
---|
1325 | */ |
---|
1326 | function currID($seq_name) |
---|
1327 | { |
---|
1328 | $sequence_name = $this->quoteIdentifier($this->getSequenceName($seq_name), true); |
---|
1329 | $seqcol_name = $this->quoteIdentifier($this->options['seqcol_name'], true); |
---|
1330 | $query = "SELECT MAX($seqcol_name) FROM $sequence_name"; |
---|
1331 | return $this->queryOne($query, 'integer'); |
---|
1332 | } |
---|
1333 | } |
---|
1334 | |
---|
1335 | /** |
---|
1336 | * MDB2 MySQL result driver |
---|
1337 | * |
---|
1338 | * @package MDB2 |
---|
1339 | * @category Database |
---|
1340 | * @author Lukas Smith <smith@pooteeweet.org> |
---|
1341 | */ |
---|
1342 | class MDB2_Result_mysql extends MDB2_Result_Common |
---|
1343 | { |
---|
1344 | // }}} |
---|
1345 | // {{{ fetchRow() |
---|
1346 | |
---|
1347 | /** |
---|
1348 | * Fetch a row and insert the data into an existing array. |
---|
1349 | * |
---|
1350 | * @param int $fetchmode how the array data should be indexed |
---|
1351 | * @param int $rownum number of the row where the data can be found |
---|
1352 | * @return int data array on success, a MDB2 error on failure |
---|
1353 | * @access public |
---|
1354 | */ |
---|
1355 | function &fetchRow($fetchmode = MDB2_FETCHMODE_DEFAULT, $rownum = null) |
---|
1356 | { |
---|
1357 | if (!is_null($rownum)) { |
---|
1358 | $seek = $this->seek($rownum); |
---|
1359 | if (PEAR::isError($seek)) { |
---|
1360 | return $seek; |
---|
1361 | } |
---|
1362 | } |
---|
1363 | if ($fetchmode == MDB2_FETCHMODE_DEFAULT) { |
---|
1364 | $fetchmode = $this->db->fetchmode; |
---|
1365 | } |
---|
1366 | if ($fetchmode & MDB2_FETCHMODE_ASSOC) { |
---|
1367 | $row = @mysql_fetch_assoc($this->result); |
---|
1368 | if (is_array($row) |
---|
1369 | && $this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE |
---|
1370 | ) { |
---|
1371 | $row = array_change_key_case($row, $this->db->options['field_case']); |
---|
1372 | } |
---|
1373 | } else { |
---|
1374 | $row = @mysql_fetch_row($this->result); |
---|
1375 | } |
---|
1376 | |
---|
1377 | if (!$row) { |
---|
1378 | if ($this->result === false) { |
---|
1379 | $err =& $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, |
---|
1380 | 'resultset has already been freed', __FUNCTION__); |
---|
1381 | return $err; |
---|
1382 | } |
---|
1383 | $null = null; |
---|
1384 | return $null; |
---|
1385 | } |
---|
1386 | $mode = $this->db->options['portability'] & MDB2_PORTABILITY_EMPTY_TO_NULL; |
---|
1387 | $rtrim = false; |
---|
1388 | if ($this->db->options['portability'] & MDB2_PORTABILITY_RTRIM) { |
---|
1389 | if (empty($this->types)) { |
---|
1390 | $mode += MDB2_PORTABILITY_RTRIM; |
---|
1391 | } else { |
---|
1392 | $rtrim = true; |
---|
1393 | } |
---|
1394 | } |
---|
1395 | if ($mode) { |
---|
1396 | $this->db->_fixResultArrayValues($row, $mode); |
---|
1397 | } |
---|
1398 | if (!empty($this->types)) { |
---|
1399 | $row = $this->db->datatype->convertResultRow($this->types, $row, $rtrim); |
---|
1400 | } |
---|
1401 | if (!empty($this->values)) { |
---|
1402 | $this->_assignBindColumns($row); |
---|
1403 | } |
---|
1404 | if ($fetchmode === MDB2_FETCHMODE_OBJECT) { |
---|
1405 | $object_class = $this->db->options['fetch_class']; |
---|
1406 | if ($object_class == 'stdClass') { |
---|
1407 | $row = (object) $row; |
---|
1408 | } else { |
---|
1409 | $row = &new $object_class($row); |
---|
1410 | } |
---|
1411 | } |
---|
1412 | ++$this->rownum; |
---|
1413 | return $row; |
---|
1414 | } |
---|
1415 | |
---|
1416 | // }}} |
---|
1417 | // {{{ _getColumnNames() |
---|
1418 | |
---|
1419 | /** |
---|
1420 | * Retrieve the names of columns returned by the DBMS in a query result. |
---|
1421 | * |
---|
1422 | * @return mixed Array variable that holds the names of columns as keys |
---|
1423 | * or an MDB2 error on failure. |
---|
1424 | * Some DBMS may not return any columns when the result set |
---|
1425 | * does not contain any rows. |
---|
1426 | * @access private |
---|
1427 | */ |
---|
1428 | function _getColumnNames() |
---|
1429 | { |
---|
1430 | $columns = array(); |
---|
1431 | $numcols = $this->numCols(); |
---|
1432 | if (PEAR::isError($numcols)) { |
---|
1433 | return $numcols; |
---|
1434 | } |
---|
1435 | for ($column = 0; $column < $numcols; $column++) { |
---|
1436 | $column_name = @mysql_field_name($this->result, $column); |
---|
1437 | $columns[$column_name] = $column; |
---|
1438 | } |
---|
1439 | if ($this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) { |
---|
1440 | $columns = array_change_key_case($columns, $this->db->options['field_case']); |
---|
1441 | } |
---|
1442 | return $columns; |
---|
1443 | } |
---|
1444 | |
---|
1445 | // }}} |
---|
1446 | // {{{ numCols() |
---|
1447 | |
---|
1448 | /** |
---|
1449 | * Count the number of columns returned by the DBMS in a query result. |
---|
1450 | * |
---|
1451 | * @return mixed integer value with the number of columns, a MDB2 error |
---|
1452 | * on failure |
---|
1453 | * @access public |
---|
1454 | */ |
---|
1455 | function numCols() |
---|
1456 | { |
---|
1457 | $cols = @mysql_num_fields($this->result); |
---|
1458 | if (is_null($cols)) { |
---|
1459 | if ($this->result === false) { |
---|
1460 | return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, |
---|
1461 | 'resultset has already been freed', __FUNCTION__); |
---|
1462 | } elseif (is_null($this->result)) { |
---|
1463 | return count($this->types); |
---|
1464 | } |
---|
1465 | return $this->db->raiseError(null, null, null, |
---|
1466 | 'Could not get column count', __FUNCTION__); |
---|
1467 | } |
---|
1468 | return $cols; |
---|
1469 | } |
---|
1470 | |
---|
1471 | // }}} |
---|
1472 | // {{{ free() |
---|
1473 | |
---|
1474 | /** |
---|
1475 | * Free the internal resources associated with result. |
---|
1476 | * |
---|
1477 | * @return boolean true on success, false if result is invalid |
---|
1478 | * @access public |
---|
1479 | */ |
---|
1480 | function free() |
---|
1481 | { |
---|
1482 | if (is_resource($this->result) && $this->db->connection) { |
---|
1483 | $free = @mysql_free_result($this->result); |
---|
1484 | if ($free === false) { |
---|
1485 | return $this->db->raiseError(null, null, null, |
---|
1486 | 'Could not free result', __FUNCTION__); |
---|
1487 | } |
---|
1488 | } |
---|
1489 | $this->result = false; |
---|
1490 | return MDB2_OK; |
---|
1491 | } |
---|
1492 | } |
---|
1493 | |
---|
1494 | /** |
---|
1495 | * MDB2 MySQL buffered result driver |
---|
1496 | * |
---|
1497 | * @package MDB2 |
---|
1498 | * @category Database |
---|
1499 | * @author Lukas Smith <smith@pooteeweet.org> |
---|
1500 | */ |
---|
1501 | class MDB2_BufferedResult_mysql extends MDB2_Result_mysql |
---|
1502 | { |
---|
1503 | // }}} |
---|
1504 | // {{{ seek() |
---|
1505 | |
---|
1506 | /** |
---|
1507 | * Seek to a specific row in a result set |
---|
1508 | * |
---|
1509 | * @param int $rownum number of the row where the data can be found |
---|
1510 | * @return mixed MDB2_OK on success, a MDB2 error on failure |
---|
1511 | * @access public |
---|
1512 | */ |
---|
1513 | function seek($rownum = 0) |
---|
1514 | { |
---|
1515 | if ($this->rownum != ($rownum - 1) && !@mysql_data_seek($this->result, $rownum)) { |
---|
1516 | if ($this->result === false) { |
---|
1517 | return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, |
---|
1518 | 'resultset has already been freed', __FUNCTION__); |
---|
1519 | } elseif (is_null($this->result)) { |
---|
1520 | return MDB2_OK; |
---|
1521 | } |
---|
1522 | return $this->db->raiseError(MDB2_ERROR_INVALID, null, null, |
---|
1523 | 'tried to seek to an invalid row number ('.$rownum.')', __FUNCTION__); |
---|
1524 | } |
---|
1525 | $this->rownum = $rownum - 1; |
---|
1526 | return MDB2_OK; |
---|
1527 | } |
---|
1528 | |
---|
1529 | // }}} |
---|
1530 | // {{{ valid() |
---|
1531 | |
---|
1532 | /** |
---|
1533 | * Check if the end of the result set has been reached |
---|
1534 | * |
---|
1535 | * @return mixed true or false on sucess, a MDB2 error on failure |
---|
1536 | * @access public |
---|
1537 | */ |
---|
1538 | function valid() |
---|
1539 | { |
---|
1540 | $numrows = $this->numRows(); |
---|
1541 | if (PEAR::isError($numrows)) { |
---|
1542 | return $numrows; |
---|
1543 | } |
---|
1544 | return $this->rownum < ($numrows - 1); |
---|
1545 | } |
---|
1546 | |
---|
1547 | // }}} |
---|
1548 | // {{{ numRows() |
---|
1549 | |
---|
1550 | /** |
---|
1551 | * Returns the number of rows in a result object |
---|
1552 | * |
---|
1553 | * @return mixed MDB2 Error Object or the number of rows |
---|
1554 | * @access public |
---|
1555 | */ |
---|
1556 | function numRows() |
---|
1557 | { |
---|
1558 | $rows = @mysql_num_rows($this->result); |
---|
1559 | if (false === $rows) { |
---|
1560 | if (false === $this->result) { |
---|
1561 | return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, |
---|
1562 | 'resultset has already been freed', __FUNCTION__); |
---|
1563 | } elseif (is_null($this->result)) { |
---|
1564 | return 0; |
---|
1565 | } |
---|
1566 | return $this->db->raiseError(null, null, null, |
---|
1567 | 'Could not get row count', __FUNCTION__); |
---|
1568 | } |
---|
1569 | return $rows; |
---|
1570 | } |
---|
1571 | } |
---|
1572 | |
---|
1573 | /** |
---|
1574 | * MDB2 MySQL statement driver |
---|
1575 | * |
---|
1576 | * @package MDB2 |
---|
1577 | * @category Database |
---|
1578 | * @author Lukas Smith <smith@pooteeweet.org> |
---|
1579 | */ |
---|
1580 | class MDB2_Statement_mysql extends MDB2_Statement_Common |
---|
1581 | { |
---|
1582 | // {{{ _execute() |
---|
1583 | |
---|
1584 | /** |
---|
1585 | * Execute a prepared query statement helper method. |
---|
1586 | * |
---|
1587 | * @param mixed $result_class string which specifies which result class to use |
---|
1588 | * @param mixed $result_wrap_class string which specifies which class to wrap results in |
---|
1589 | * |
---|
1590 | * @return mixed MDB2_Result or integer (affected rows) on success, |
---|
1591 | * a MDB2 error on failure |
---|
1592 | * @access private |
---|
1593 | */ |
---|
1594 | function &_execute($result_class = true, $result_wrap_class = false) |
---|
1595 | { |
---|
1596 | if (is_null($this->statement)) { |
---|
1597 | $result =& parent::_execute($result_class, $result_wrap_class); |
---|
1598 | return $result; |
---|
1599 | } |
---|
1600 | $this->db->last_query = $this->query; |
---|
1601 | $this->db->debug($this->query, 'execute', array('is_manip' => $this->is_manip, 'when' => 'pre', 'parameters' => $this->values)); |
---|
1602 | if ($this->db->getOption('disable_query')) { |
---|
1603 | $result = $this->is_manip ? 0 : null; |
---|
1604 | return $result; |
---|
1605 | } |
---|
1606 | |
---|
1607 | $connection = $this->db->getConnection(); |
---|
1608 | if (PEAR::isError($connection)) { |
---|
1609 | return $connection; |
---|
1610 | } |
---|
1611 | |
---|
1612 | $query = 'EXECUTE '.$this->statement; |
---|
1613 | if (!empty($this->positions)) { |
---|
1614 | $parameters = array(); |
---|
1615 | foreach ($this->positions as $parameter) { |
---|
1616 | if (!array_key_exists($parameter, $this->values)) { |
---|
1617 | return $this->db->raiseError(MDB2_ERROR_NOT_FOUND, null, null, |
---|
1618 | 'Unable to bind to missing placeholder: '.$parameter, __FUNCTION__); |
---|
1619 | } |
---|
1620 | $value = $this->values[$parameter]; |
---|
1621 | $type = array_key_exists($parameter, $this->types) ? $this->types[$parameter] : null; |
---|
1622 | if (is_resource($value) || $type == 'clob' || $type == 'blob' && $this->db->options['lob_allow_url_include']) { |
---|
1623 | if (!is_resource($value) && preg_match('/^(\w+:\/\/)(.*)$/', $value, $match)) { |
---|
1624 | if ($match[1] == 'file://') { |
---|
1625 | $value = $match[2]; |
---|
1626 | } |
---|
1627 | $value = @fopen($value, 'r'); |
---|
1628 | $close = true; |
---|
1629 | } |
---|
1630 | if (is_resource($value)) { |
---|
1631 | $data = ''; |
---|
1632 | while (!@feof($value)) { |
---|
1633 | $data.= @fread($value, $this->db->options['lob_buffer_length']); |
---|
1634 | } |
---|
1635 | if ($close) { |
---|
1636 | @fclose($value); |
---|
1637 | } |
---|
1638 | $value = $data; |
---|
1639 | } |
---|
1640 | } |
---|
1641 | $quoted = $this->db->quote($value, $type); |
---|
1642 | if (PEAR::isError($quoted)) { |
---|
1643 | return $quoted; |
---|
1644 | } |
---|
1645 | $param_query = 'SET @'.$parameter.' = '.$quoted; |
---|
1646 | $result = $this->db->_doQuery($param_query, true, $connection); |
---|
1647 | if (PEAR::isError($result)) { |
---|
1648 | return $result; |
---|
1649 | } |
---|
1650 | } |
---|
1651 | $query.= ' USING @'.implode(', @', array_values($this->positions)); |
---|
1652 | } |
---|
1653 | |
---|
1654 | $result = $this->db->_doQuery($query, $this->is_manip, $connection); |
---|
1655 | if (PEAR::isError($result)) { |
---|
1656 | return $result; |
---|
1657 | } |
---|
1658 | |
---|
1659 | if ($this->is_manip) { |
---|
1660 | $affected_rows = $this->db->_affectedRows($connection, $result); |
---|
1661 | return $affected_rows; |
---|
1662 | } |
---|
1663 | |
---|
1664 | $result =& $this->db->_wrapResult($result, $this->result_types, |
---|
1665 | $result_class, $result_wrap_class, $this->limit, $this->offset); |
---|
1666 | $this->db->debug($this->query, 'execute', array('is_manip' => $this->is_manip, 'when' => 'post', 'result' => $result)); |
---|
1667 | return $result; |
---|
1668 | } |
---|
1669 | |
---|
1670 | // }}} |
---|
1671 | // {{{ free() |
---|
1672 | |
---|
1673 | /** |
---|
1674 | * Release resources allocated for the specified prepared query. |
---|
1675 | * |
---|
1676 | * @return mixed MDB2_OK on success, a MDB2 error on failure |
---|
1677 | * @access public |
---|
1678 | */ |
---|
1679 | function free() |
---|
1680 | { |
---|
1681 | if (is_null($this->positions)) { |
---|
1682 | return $this->db->raiseError(MDB2_ERROR, null, null, |
---|
1683 | 'Prepared statement has already been freed', __FUNCTION__); |
---|
1684 | } |
---|
1685 | $result = MDB2_OK; |
---|
1686 | |
---|
1687 | if (!is_null($this->statement)) { |
---|
1688 | $connection = $this->db->getConnection(); |
---|
1689 | if (PEAR::isError($connection)) { |
---|
1690 | return $connection; |
---|
1691 | } |
---|
1692 | $query = 'DEALLOCATE PREPARE '.$this->statement; |
---|
1693 | $result = $this->db->_doQuery($query, true, $connection); |
---|
1694 | } |
---|
1695 | |
---|
1696 | parent::free(); |
---|
1697 | return $result; |
---|
1698 | } |
---|
1699 | } |
---|
1700 | ?> |
---|