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1232 | daniel-mar | 1 | <?php |
2 | |||
3 | /* |
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4 | * OIDplus 2.0 |
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5 | * Copyright 2019 - 2023 Daniel Marschall, ViaThinkSoft |
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6 | * |
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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 | |||
20 | namespace ViaThinkSoft\OIDplus; |
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21 | |||
22 | // phpcs:disable PSR1.Files.SideEffects |
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23 | \defined('INSIDE_OIDPLUS') or die; |
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24 | // phpcs:enable PSR1.Files.SideEffects |
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25 | |||
26 | class OIDplusDatabaseConnectionSqlSrv extends OIDplusDatabaseConnection { |
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27 | |||
28 | /** |
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29 | * @var mixed|null |
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30 | */ |
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31 | private $conn = null; |
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32 | |||
33 | /** |
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34 | * @var string|null |
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35 | */ |
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36 | private $last_error = null; |
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37 | |||
38 | /** |
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39 | * @param string $sql |
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40 | * @param array|null $prepared_args |
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41 | * @return OIDplusQueryResultSqlSrv |
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42 | * @throws OIDplusException |
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43 | */ |
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44 | public function doQuery(string $sql, array $prepared_args=null): OIDplusQueryResult { |
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45 | $this->last_error = null; |
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46 | try { |
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47 | $res = sqlsrv_query($this->conn, $sql, $prepared_args, |
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48 | array( |
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49 | // SQLSRV_CURSOR_FORWARD ('forward', default) |
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50 | // Lets you move one row at a time starting at the first row of the result set until you reach the end of the result set. |
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51 | // => Does not work with sqlsrv_num_rows(); |
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52 | |||
53 | // SQLSRV_CURSOR_STATIC ('static') |
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54 | // Lets you access rows in any order but will not reflect changes in the database. |
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55 | // => Does not work with transaction rollback?! (Testcase failed) |
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56 | |||
57 | // SQLSRV_CURSOR_DYNAMIC |
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58 | // Lets you access rows in any order and will reflect changes in the database. |
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59 | // => Does not work with sqlsrv_num_rows(); |
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60 | |||
61 | // SQLSRV_CURSOR_KEYSET ('keyset') |
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62 | // Lets you access rows in any order. However, a keyset cursor does not update the row count if a row is deleted from the table (a deleted row is returned with no values). |
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63 | // => Does not work with transaction rollback?! (Testcase failed) |
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64 | |||
65 | // SQLSRV_CURSOR_CLIENT_BUFFERED ('buffered') |
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66 | // Lets you access rows in any order. Creates a client-side cursor query. |
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67 | // => Seems to work fine |
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68 | |||
69 | 'Scrollable' => SQLSRV_CURSOR_CLIENT_BUFFERED |
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70 | ) |
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71 | ); |
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72 | } catch (\Exception $e) { |
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73 | $this->last_error = $e->getMessage(); |
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74 | throw new OIDplusSQLException($sql, $e->getMessage()); |
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75 | } |
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76 | |||
77 | if ($res === false) { |
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78 | $this->last_error = print_r(sqlsrv_errors(), true); |
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79 | throw new OIDplusSQLException($sql, $this->error()); |
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80 | } else { |
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81 | return new OIDplusQueryResultSqlSrv($res); |
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82 | } |
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83 | } |
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84 | |||
85 | |||
86 | /** |
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87 | * @return string |
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88 | */ |
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89 | public function error(): string { |
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90 | $err = $this->last_error; |
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91 | if ($err === null) $err = ''; |
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92 | return $err; |
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93 | } |
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94 | |||
95 | /** |
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96 | * @return string |
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97 | */ |
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98 | private static function get_sqlsrv_dll_name(): string { |
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99 | ob_start(); |
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100 | phpinfo(INFO_GENERAL); |
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101 | $x = ob_get_contents(); |
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102 | ob_end_clean(); |
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103 | |||
104 | $architecture = |
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105 | preg_match('@Architecture.+(x86|x64)@', $x, $m) ? $m[1] : '*'; |
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106 | |||
107 | $threadsafety = |
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108 | preg_match('@Thread Safety.+(enabled|disabled)@', $x, $m) |
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109 | ? ($m[1] == 'enabled' ? 'ts' : 'nts') : '*'; |
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110 | |||
111 | $m = explode('.',phpversion()); |
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112 | $version = $m[0].$m[1]; |
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113 | |||
114 | // e.g. php_sqlsrv_82_ts_x64.dll |
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115 | return "php_sqlsrv_${version}_${threadsafety}_${architecture}.dll"; |
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116 | } |
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117 | |||
118 | /** |
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119 | * @return void |
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120 | * @throws OIDplusConfigInitializationException |
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121 | * @throws OIDplusException |
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122 | */ |
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123 | protected function doConnect()/*: void*/ { |
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124 | // Download here: https://learn.microsoft.com/en-us/sql/connect/php/download-drivers-php-sql-server?view=sql-server-ver16 |
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125 | if (!function_exists('sqlsrv_connect')) throw new OIDplusException(_L('PHP extension "%1" not installed',self::get_sqlsrv_dll_name())); |
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126 | |||
127 | // Try connecting to the database |
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128 | $servername = OIDplus::baseConfig()->getValue('SQLSRV_SERVER', 'localhost\oidplus,49010'); |
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129 | $username = OIDplus::baseConfig()->getValue('SQLSRV_USERNAME', ''); |
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130 | $password = OIDplus::baseConfig()->getValue('SQLSRV_PASSWORD', ''); |
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131 | $database = OIDplus::baseConfig()->getValue('SQLSRV_DATABASE', 'oidplus'); |
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132 | |||
133 | $connectionInfo = array( |
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134 | "Database" => $database, |
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135 | "CharacterSet" => 'UTF-8', |
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136 | // TODO: Make addition connection infos configurable |
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137 | ); |
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138 | |||
139 | if ($username != '') { |
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140 | $connectionInfo['UID'] = $username; |
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141 | $connectionInfo['PWD'] = $password; |
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142 | } |
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143 | |||
144 | $this->conn = @sqlsrv_connect($servername, $connectionInfo); |
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145 | |||
146 | if (!$this->conn) { |
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147 | $message = print_r(sqlsrv_errors(), true); |
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148 | throw new OIDplusConfigInitializationException(trim(_L('Connection to the database failed!').' '.$message)); |
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149 | } |
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150 | |||
151 | $this->last_error = null; |
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152 | } |
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153 | |||
154 | /** |
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155 | * @return void |
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156 | */ |
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157 | protected function doDisconnect()/*: void*/ { |
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158 | if (!is_null($this->conn)) { |
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159 | sqlsrv_close($this->conn); |
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160 | $this->conn = null; |
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161 | } |
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162 | } |
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163 | |||
164 | /** |
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165 | * @var bool |
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166 | */ |
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167 | private $intransaction = false; |
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168 | |||
169 | /** |
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170 | * @return bool |
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171 | */ |
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172 | public function transaction_supported(): bool { |
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173 | return true; |
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174 | } |
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175 | |||
176 | /** |
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177 | * @return int |
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178 | */ |
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179 | public function transaction_level(): int { |
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180 | return $this->intransaction ? 1 : 0; |
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181 | } |
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182 | |||
183 | /** |
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184 | * @return void |
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185 | * @throws OIDplusException |
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186 | */ |
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187 | public function transaction_begin()/*: void*/ { |
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188 | if ($this->intransaction) throw new OIDplusException(_L('Nested transactions are not supported by this database plugin.')); |
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189 | sqlsrv_begin_transaction($this->conn); |
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190 | $this->intransaction = true; |
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191 | } |
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192 | |||
193 | /** |
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194 | * @return void |
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195 | */ |
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196 | public function transaction_commit()/*: void*/ { |
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197 | sqlsrv_commit($this->conn); |
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198 | $this->intransaction = false; |
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199 | } |
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200 | |||
201 | /** |
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202 | * @return void |
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203 | */ |
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204 | public function transaction_rollback()/*: void*/ { |
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205 | sqlsrv_rollback($this->conn); |
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206 | $this->intransaction = false; |
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207 | } |
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208 | |||
209 | /** |
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210 | * @return string |
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211 | */ |
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212 | public function sqlDate(): string { |
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213 | return 'getdate()'; |
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214 | } |
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215 | |||
216 | /** |
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217 | * @param bool $mustExist |
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218 | * @return OIDplusSqlSlangPlugin|null |
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219 | * @throws OIDplusConfigInitializationException |
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220 | */ |
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221 | protected function doGetSlang(bool $mustExist=true)/*: ?OIDplusSqlSlangPlugin*/ { |
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222 | $slang = OIDplus::getSqlSlangPlugin('mssql'); |
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223 | if (is_null($slang)) { |
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224 | 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.','mssql')); |
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225 | } |
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226 | return $slang; |
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227 | } |
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228 | |||
229 | /** |
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230 | * @return array |
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231 | */ |
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232 | public function getExtendedInfo(): array { |
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233 | $servername = OIDplus::baseConfig()->getValue('SQLSRV_SERVER', 'localhost\oidplus,49010'); |
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234 | $username = OIDplus::baseConfig()->getValue('SQLSRV_USERNAME', ''); |
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235 | $password = OIDplus::baseConfig()->getValue('SQLSRV_PASSWORD', ''); |
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236 | $database = OIDplus::baseConfig()->getValue('SQLSRV_DATABASE', 'oidplus'); |
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237 | return array( |
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238 | _L('Hostname') => $servername, |
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239 | _L('Username') => $username, |
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240 | _L('Password') => $password != '' ? '('._L('redacted').')' : '', |
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241 | _L('Database') => $database |
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242 | ); |
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243 | } |
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244 | } |