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786 | daniel-mar | 1 | <?php |
2 | |||
3 | /* |
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4 | * OIDplus 2.0 |
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1086 | daniel-mar | 5 | * Copyright 2019 - 2023 Daniel Marschall, ViaThinkSoft |
786 | daniel-mar | 6 | * |
7 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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8 | * you may not use this file except in compliance with the License. |
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9 | * You may obtain a copy of the License at |
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10 | * |
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11 | * http://www.apache.org/licenses/LICENSE-2.0 |
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12 | * |
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13 | * Unless required by applicable law or agreed to in writing, software |
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14 | * distributed under the License is distributed on an "AS IS" BASIS, |
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15 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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16 | * See the License for the specific language governing permissions and |
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17 | * limitations under the License. |
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18 | */ |
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19 | |||
1050 | daniel-mar | 20 | namespace ViaThinkSoft\OIDplus; |
786 | daniel-mar | 21 | |
1086 | daniel-mar | 22 | // phpcs:disable PSR1.Files.SideEffects |
23 | \defined('INSIDE_OIDPLUS') or die; |
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24 | // phpcs:enable PSR1.Files.SideEffects |
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25 | |||
786 | daniel-mar | 26 | class OIDplusDatabaseConnectionOci extends OIDplusDatabaseConnection { |
1130 | daniel-mar | 27 | /** |
28 | * @var mixed|null |
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29 | */ |
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786 | daniel-mar | 30 | private $conn = null; |
1130 | daniel-mar | 31 | |
32 | /** |
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33 | * @var array|null |
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34 | */ |
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786 | daniel-mar | 35 | private $last_error = null; // do the same like MySQL+PDO, just to be equal in the behavior |
36 | |||
1116 | daniel-mar | 37 | /** |
38 | * @param string $sql |
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39 | * @param array|null $prepared_args |
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40 | * @return OIDplusQueryResultOci |
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41 | * @throws OIDplusException |
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42 | */ |
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43 | public function doQuery(string $sql, array $prepared_args=null): OIDplusQueryResult { |
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786 | daniel-mar | 44 | $this->last_error = null; |
45 | |||
46 | $mode = $this->intransaction ? OCI_NO_AUTO_COMMIT : OCI_COMMIT_ON_SUCCESS; |
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47 | |||
48 | if (is_null($prepared_args)) { |
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787 | daniel-mar | 49 | $res = @oci_parse($this->conn, $sql); |
786 | daniel-mar | 50 | if ($res === false) { |
51 | $this->last_error = oci_error($this->conn); |
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52 | throw new OIDplusSQLException($sql, _L('Cannot prepare statement').': '.$this->error()); |
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53 | } else if (!@oci_execute($res, $mode)) { |
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54 | $this->last_error = oci_error($res); |
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55 | throw new OIDplusSQLException($sql, $this->error()); |
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56 | } else { |
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57 | return new OIDplusQueryResultOci($res); |
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58 | } |
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59 | //oci_free_statement($res); // will be done in OIDplusQueryResultOci::__destruct() |
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60 | } else { |
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61 | if (!is_array($prepared_args)) { |
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62 | throw new OIDplusException(_L('"prepared_args" must be either NULL or an ARRAY.')); |
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63 | } |
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64 | |||
65 | // convert ? ? ? to :param1 :param2 :param3 |
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66 | $count = 0; |
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67 | $sql = preg_replace_callback('@\\?@', function($found) { |
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68 | static $i = 0; |
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69 | $i++; |
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70 | return ":param$i"; |
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71 | }, $sql, count($prepared_args), $count); |
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72 | |||
73 | $res = @oci_parse($this->conn, $sql); |
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74 | if ($res === false) { |
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75 | $this->last_error = oci_error($this->conn); |
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76 | throw new OIDplusSQLException($sql, _L('Cannot prepare statement').': '.$this->error()); |
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77 | } |
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78 | |||
79 | $i = 0; |
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854 | daniel-mar | 80 | foreach ($prepared_args as $value) { |
786 | daniel-mar | 81 | $i++; |
82 | if ($i > $count) break; |
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854 | daniel-mar | 83 | if (is_bool($value)) $value = $value ? 1 : 0; |
786 | daniel-mar | 84 | $paramname = ":param$i"; |
854 | daniel-mar | 85 | $$paramname = $value; // It is VERY important to clone the variable in this stupid way, because the binding will be done to the memory address of $value ! |
786 | daniel-mar | 86 | if (@oci_bind_by_name($res, $paramname, $$paramname) === false) { |
789 | daniel-mar | 87 | $this->last_error = oci_error($res); |
88 | throw new OIDplusSQLException($sql, _L('Cannot bind parameter %1 to value %2',$paramname,$$paramname).': '.$this->error()); |
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786 | daniel-mar | 89 | } |
90 | } |
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91 | |||
92 | if (!@oci_execute($res, $mode)) { |
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93 | $this->last_error = oci_error($res); |
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94 | throw new OIDplusSQLException($sql, $this->error()); |
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95 | } else { |
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96 | return new OIDplusQueryResultOci($res); |
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97 | } |
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98 | //oci_free_statement($res); // will be done in OIDplusQueryResultOci::__destruct() |
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99 | |||
100 | } |
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101 | } |
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102 | |||
1116 | daniel-mar | 103 | /** |
104 | * @return string |
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105 | */ |
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786 | daniel-mar | 106 | public function error(): string { |
107 | $err = $this->last_error; |
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1130 | daniel-mar | 108 | if (!$err) $err = ''; |
786 | daniel-mar | 109 | /* |
110 | array(4) { |
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111 | ["code"]=> |
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112 | int(1) |
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113 | ["message"]=> |
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114 | string(55) "ORA-00001: unique constraint (HR.SYS_C0012493) violated" |
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115 | ["offset"]=> |
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116 | int(0) |
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117 | ["sqltext"]=> |
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118 | string(118) "insert into config (name, description, value, protected, visible) values (:param1, :param2, :param3, :param4, :param5)" |
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119 | } |
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120 | */ |
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121 | if (isset($err['message'])) return $err['message']; |
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122 | return $err; |
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123 | } |
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124 | |||
1116 | daniel-mar | 125 | /** |
126 | * @return void |
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127 | * @throws OIDplusConfigInitializationException |
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128 | * @throws OIDplusException |
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129 | */ |
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786 | daniel-mar | 130 | protected function doConnect()/*: void*/ { |
131 | if (!function_exists('oci_connect')) throw new OIDplusConfigInitializationException(_L('PHP extension "%1" not installed','OCI8')); |
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132 | |||
133 | // Try connecting to the database |
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134 | ob_start(); |
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135 | $err = ''; |
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136 | try { |
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137 | $conn_str = OIDplus::baseConfig()->getValue('OCI_CONN_STR', 'localhost/XE'); |
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138 | $username = OIDplus::baseConfig()->getValue('OCI_USERNAME', 'hr'); |
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139 | $password = OIDplus::baseConfig()->getValue('OCI_PASSWORD', 'oracle'); |
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140 | $this->conn = oci_connect($username, $password, $conn_str, "AL32UTF8" /*, $session_mode*/); |
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141 | } finally { |
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142 | $err = ob_get_contents(); |
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143 | ob_end_clean(); |
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862 | daniel-mar | 144 | |
145 | $tmp = oci_error(); |
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146 | if ($tmp !== false) { |
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147 | $err .= $tmp['message']; |
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148 | } |
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786 | daniel-mar | 149 | } |
1050 | daniel-mar | 150 | |
786 | daniel-mar | 151 | if (!$this->conn) { |
862 | daniel-mar | 152 | throw new OIDplusConfigInitializationException(trim(_L('Connection to the database failed!').' ' . strip_tags($err))); |
786 | daniel-mar | 153 | } |
154 | |||
155 | $this->last_error = null; |
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156 | } |
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157 | |||
1116 | daniel-mar | 158 | /** |
159 | * @return void |
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160 | */ |
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786 | daniel-mar | 161 | protected function doDisconnect()/*: void*/ { |
162 | if (!is_null($this->conn)) { |
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163 | oci_close($this->conn); |
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164 | $this->conn = null; |
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165 | } |
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166 | } |
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167 | |||
1116 | daniel-mar | 168 | /** |
169 | * @var bool |
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170 | */ |
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786 | daniel-mar | 171 | private $intransaction = false; |
172 | |||
1116 | daniel-mar | 173 | /** |
174 | * @return bool |
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175 | */ |
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786 | daniel-mar | 176 | public function transaction_supported(): bool { |
177 | return true; |
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178 | } |
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179 | |||
1116 | daniel-mar | 180 | /** |
181 | * @return int |
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182 | */ |
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786 | daniel-mar | 183 | public function transaction_level(): int { |
184 | return $this->intransaction ? 1 : 0; |
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185 | } |
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186 | |||
1116 | daniel-mar | 187 | /** |
188 | * @return void |
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189 | * @throws OIDplusException |
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190 | */ |
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786 | daniel-mar | 191 | public function transaction_begin()/*: void*/ { |
192 | if ($this->intransaction) throw new OIDplusException(_L('Nested transactions are not supported by this database plugin.')); |
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193 | // Later, in oci_execute() we will include OCI_NO_AUTO_COMMIT |
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194 | $this->intransaction = true; |
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195 | } |
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196 | |||
1116 | daniel-mar | 197 | /** |
198 | * @return void |
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199 | */ |
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786 | daniel-mar | 200 | public function transaction_commit()/*: void*/ { |
201 | oci_commit($this->conn); |
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202 | $this->intransaction = false; |
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203 | } |
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204 | |||
1116 | daniel-mar | 205 | /** |
206 | * @return void |
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207 | */ |
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786 | daniel-mar | 208 | public function transaction_rollback()/*: void*/ { |
209 | oci_rollback($this->conn); |
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210 | $this->intransaction = false; |
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211 | } |
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212 | |||
1116 | daniel-mar | 213 | /** |
214 | * @param bool $mustExist |
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215 | * @return OIDplusSqlSlangPlugin|null |
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216 | * @throws OIDplusConfigInitializationException |
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217 | */ |
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786 | daniel-mar | 218 | protected function doGetSlang(bool $mustExist=true)/*: ?OIDplusSqlSlangPlugin*/ { |
219 | $slang = OIDplus::getSqlSlangPlugin('oracle'); |
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220 | if (is_null($slang)) { |
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221 | throw new OIDplusConfigInitializationException(_L('SQL-Slang plugin "%1" is missing. Please check if it exists in the directory "plugin/sqlSlang". If it is not existing, please recover it from an SVN snapshot or OIDplus TAR.GZ file.','oracle')); |
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222 | } |
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223 | return $slang; |
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224 | } |
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225 | } |