paulgoughbooks_old
This repository has no backups
This repository's network speed is throttled to 100KB/sec
Upgrade your account to fix these warnings, or use backups.vc for automated backups
@ 2
paulgoughbooks_old / trunk / system / Database / Query.php
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 |
<?php /** * CodeIgniter * * An open source application development framework for PHP * * This content is released under the MIT License (MIT) * * Copyright (c) 2014-2019 British Columbia Institute of Technology * Copyright (c) 2019-2020 CodeIgniter Foundation * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * * @package CodeIgniter * @author CodeIgniter Dev Team * @copyright 2019-2020 CodeIgniter Foundation * @license https://opensource.org/licenses/MIT MIT License * @link https://codeigniter.com * @since Version 4.0.0 * @filesource */ namespace CodeIgniter\Database; /** * Query builder * * @package CodeIgniter\Database */ class Query implements QueryInterface { /** * The query string, as provided by the user. * * @var string */ protected $originalQueryString; /** * The final query string after binding, etc. * * @var string */ protected $finalQueryString; /** * The binds and their values used for binding. * * @var array */ protected $binds = []; /** * Bind marker * * Character used to identify values in a prepared statement. * * @var string */ protected $bindMarker = '?'; /** * The start time in seconds with microseconds * for when this query was executed. * * @var float */ protected $startTime; /** * The end time in seconds with microseconds * for when this query was executed. * * @var float */ protected $endTime; /** * The error code, if any. * * @var integer */ protected $errorCode; /** * The error message, if any. * * @var string */ protected $errorString; /** * Pointer to database connection. * Mainly for escaping features. * * @var BaseConnection */ public $db; //-------------------------------------------------------------------- /** * BaseQuery constructor. * * @param $db ConnectionInterface */ public function __construct(&$db) { $this->db = $db; } //-------------------------------------------------------------------- /** * Sets the raw query string to use for this statement. * * @param string $sql * @param mixed $binds * @param boolean $setEscape * * @return $this */ public function setQuery(string $sql, $binds = null, bool $setEscape = true) { $this->originalQueryString = $sql; if (! is_null($binds)) { if (! is_array($binds)) { $binds = [$binds]; } if ($setEscape) { array_walk($binds, function (&$item) { $item = [ $item, true, ]; }); } $this->binds = $binds; } return $this; } //-------------------------------------------------------------------- /** * Will store the variables to bind into the query later. * * @param array $binds * * @return $this */ public function setBinds(array $binds) { $this->binds = $binds; return $this; } //-------------------------------------------------------------------- /** * Returns the final, processed query string after binding, etal * has been performed. * * @return string */ public function getQuery(): string { if (empty($this->finalQueryString)) { $this->finalQueryString = $this->originalQueryString; } $this->compileBinds(); return $this->finalQueryString; } //-------------------------------------------------------------------- /** * Records the execution time of the statement using microtime(true) * for it's start and end values. If no end value is present, will * use the current time to determine total duration. * * @param float $start * @param float $end * * @return $this */ public function setDuration(float $start, float $end = null) { $this->startTime = $start; if (is_null($end)) { $end = microtime(true); } $this->endTime = $end; return $this; } //-------------------------------------------------------------------- /** * Returns the start time in seconds with microseconds. * * @param boolean $returnRaw * @param integer $decimals * * @return string */ public function getStartTime(bool $returnRaw = false, int $decimals = 6): string { if ($returnRaw) { return $this->startTime; } return number_format($this->startTime, $decimals); } //-------------------------------------------------------------------- /** * Returns the duration of this query during execution, or null if * the query has not been executed yet. * * @param integer $decimals The accuracy of the returned time. * * @return string */ public function getDuration(int $decimals = 6): string { return number_format(($this->endTime - $this->startTime), $decimals); } //-------------------------------------------------------------------- /** * Stores the error description that happened for this query. * * @param integer $code * @param string $error * * @return $this */ public function setError(int $code, string $error) { $this->errorCode = $code; $this->errorString = $error; return $this; } //-------------------------------------------------------------------- /** * Reports whether this statement created an error not. * * @return boolean */ public function hasError(): bool { return ! empty($this->errorString); } //-------------------------------------------------------------------- /** * Returns the error code created while executing this statement. * * @return integer */ public function getErrorCode(): int { return $this->errorCode; } //-------------------------------------------------------------------- /** * Returns the error message created while executing this statement. * * @return string */ public function getErrorMessage(): string { return $this->errorString; } //-------------------------------------------------------------------- /** * Determines if the statement is a write-type query or not. * * @return boolean */ public function isWriteType(): bool { return (bool) preg_match( '/^\s*"?(SET|INSERT|UPDATE|DELETE|REPLACE|CREATE|DROP|TRUNCATE|LOAD|COPY|ALTER|RENAME|GRANT|REVOKE|LOCK|UNLOCK|REINDEX)\s/i', $this->originalQueryString); } //-------------------------------------------------------------------- /** * Swaps out one table prefix for a new one. * * @param string $orig * @param string $swap * * @return $this */ public function swapPrefix(string $orig, string $swap) { $sql = empty($this->finalQueryString) ? $this->originalQueryString : $this->finalQueryString; $this->finalQueryString = preg_replace('/(\W)' . $orig . '(\S+?)/', '\\1' . $swap . '\\2', $sql); return $this; } //-------------------------------------------------------------------- /** * Returns the original SQL that was passed into the system. * * @return string */ public function getOriginalQuery(): string { return $this->originalQueryString; } //-------------------------------------------------------------------- /** * Escapes and inserts any binds into the finalQueryString object. * * @return null|void */ protected function compileBinds() { $sql = $this->finalQueryString; $hasNamedBinds = strpos($sql, ':') !== false && strpos($sql, ':=') === false; if (empty($this->binds) || empty($this->bindMarker) || (strpos($sql, $this->bindMarker) === false && $hasNamedBinds === false) ) { return; } if (! is_array($this->binds)) { $binds = [$this->binds]; $bindCount = 1; } else { $binds = $this->binds; $bindCount = count($binds); } // Reverse the binds so that duplicate named binds // will be processed prior to the original binds. if (! is_numeric(key(array_slice($binds, 0, 1)))) { $binds = array_reverse($binds); } // We'll need marker length later $ml = strlen($this->bindMarker); if ($hasNamedBinds) { $sql = $this->matchNamedBinds($sql, $binds); } else { $sql = $this->matchSimpleBinds($sql, $binds, $bindCount, $ml); } $this->finalQueryString = $sql; } //-------------------------------------------------------------------- /** * Match bindings * * @param string $sql * @param array $binds * @return string */ protected function matchNamedBinds(string $sql, array $binds): string { $replacers = []; foreach ($binds as $placeholder => $value) { // $value[1] contains the boolean whether should be escaped or not $escapedValue = $value[1] ? $this->db->escape($value[0]) : $value[0]; // In order to correctly handle backlashes in saved strings // we will need to preg_quote, so remove the wrapping escape characters // otherwise it will get escaped. if (is_array($value[0])) { $escapedValue = '(' . implode(',', $escapedValue) . ')'; } $replacers[":{$placeholder}:"] = $escapedValue; } return strtr($sql, $replacers); } //-------------------------------------------------------------------- /** * Match bindings * * @param string $sql * @param array $binds * @param integer $bindCount * @param integer $ml * @return string */ protected function matchSimpleBinds(string $sql, array $binds, int $bindCount, int $ml): string { // Make sure not to replace a chunk inside a string that happens to match the bind marker if ($c = preg_match_all("/'[^']*'/i", $sql, $matches)) { $c = preg_match_all('/' . preg_quote($this->bindMarker, '/') . '/i', str_replace($matches[0], str_replace($this->bindMarker, str_repeat(' ', $ml), $matches[0]), $sql, $c), $matches, PREG_OFFSET_CAPTURE); // Bind values' count must match the count of markers in the query if ($bindCount !== $c) { return $sql; } } // Number of binds must match bindMarkers in the string. else if (($c = preg_match_all('/' . preg_quote($this->bindMarker, '/') . '/i', $sql, $matches, PREG_OFFSET_CAPTURE)) !== $bindCount) { return $sql; } do { $c--; $escapedValue = $binds[$c][1] ? $this->db->escape($binds[$c][0]) : $binds[$c][0]; if (is_array($escapedValue)) { $escapedValue = '(' . implode(',', $escapedValue) . ')'; } $sql = substr_replace($sql, $escapedValue, $matches[0][$c][1], $ml); } while ($c !== 0); return $sql; } //-------------------------------------------------------------------- /** * Return text representation of the query * * @return string */ public function __toString(): string { return $this->getQuery(); } //-------------------------------------------------------------------- } |
Commits for paulgoughbooks_old/trunk/system/Database/Query.php
Revision | Author | Commited | Message |
---|---|---|---|
2 | tporter | Tue 03 Nov, 2020 08:50:21 +0000 | Migration of Paul Goughs Books site to Codeignitor 4 |