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1 | <?php |
2 | /** |
3 | * Pop PHP Framework (https://www.popphp.org/) |
4 | * |
5 | * @link https://github.com/popphp/popphp-framework |
6 | * @author Nick Sagona, III <dev@noladev.com> |
7 | * @copyright Copyright (c) 2009-2025 NOLA Interactive, LLC. |
8 | * @license https://www.popphp.org/license New BSD License |
9 | */ |
10 | |
11 | /** |
12 | * @namespace |
13 | */ |
14 | namespace Pop\Db\Sql; |
15 | |
16 | use Pop\Db\Adapter; |
17 | |
18 | /** |
19 | * Abstract SQL class |
20 | * |
21 | * @category Pop |
22 | * @package Pop\Db |
23 | * @author Nick Sagona, III <dev@noladev.com> |
24 | * @copyright Copyright (c) 2009-2025 NOLA Interactive, LLC. |
25 | * @license https://www.popphp.org/license New BSD License |
26 | * @version 6.6.5 |
27 | */ |
28 | abstract class AbstractSql |
29 | { |
30 | |
31 | /** |
32 | * Constants for database types |
33 | */ |
34 | const MYSQL = 'MYSQL'; |
35 | const PGSQL = 'PGSQL'; |
36 | const SQLITE = 'SQLITE'; |
37 | const SQLSRV = 'SQLSRV'; |
38 | |
39 | /** |
40 | * Constants for id quote types |
41 | */ |
42 | const BACKTICK = 'BACKTICK'; |
43 | const BRACKET = 'BRACKET'; |
44 | const DOUBLE_QUOTE = 'DOUBLE_QUOTE'; |
45 | const NO_QUOTE = 'NO_QUOTE'; |
46 | |
47 | /** |
48 | * Database object |
49 | * @var ?Adapter\AbstractAdapter |
50 | */ |
51 | protected ?Adapter\AbstractAdapter $db = null; |
52 | |
53 | /** |
54 | * Database type |
55 | * @var ?string |
56 | */ |
57 | protected ?string $dbType = null; |
58 | |
59 | /** |
60 | * SQL placeholder |
61 | * @var ?string |
62 | */ |
63 | protected ?string $placeholder = null; |
64 | |
65 | /** |
66 | * ID quote type |
67 | * @var string |
68 | */ |
69 | protected string $idQuoteType = 'NO_QUOTE'; |
70 | |
71 | /** |
72 | * ID open quote |
73 | * @var ?string |
74 | */ |
75 | protected ?string $openQuote = null; |
76 | |
77 | /** |
78 | * ID close quote |
79 | * @var ?string |
80 | */ |
81 | protected ?string $closeQuote = null; |
82 | |
83 | /** |
84 | * Parameter count |
85 | * @var int |
86 | */ |
87 | protected int $parameterCount = 0; |
88 | |
89 | /** |
90 | * Supported standard SQL aggregate functions |
91 | * @var array |
92 | */ |
93 | protected static array $aggregateFunctions = [ |
94 | 'AVG', 'COUNT', 'MAX', 'MIN', 'SUM' |
95 | ]; |
96 | |
97 | /** |
98 | * Supported standard SQL math functions |
99 | * @var array |
100 | */ |
101 | protected static array $mathFunctions = [ |
102 | 'ABS', 'RAND', 'SQRT', 'POW', 'POWER', 'EXP', 'LN', 'LOG', 'LOG10', 'GREATEST', 'LEAST', |
103 | 'DIV', 'MOD', 'ROUND', 'TRUNC', 'CEIL', 'CEILING', 'FLOOR', 'COS', 'ACOS', 'ACOSH', 'SIN', |
104 | 'SINH', 'ASIN', 'ASINH', 'TAN', 'TANH', 'ATANH', 'ATAN2', |
105 | ]; |
106 | |
107 | /** |
108 | * Supported standard SQL string functions |
109 | * @var array |
110 | */ |
111 | protected static array $stringFunctions = [ |
112 | 'CONCAT', 'FORMAT', 'INSTR', 'LCASE', 'LEFT', 'LENGTH', 'LOCATE', 'LOWER', 'LPAD', |
113 | 'LTRIM', 'POSITION', 'QUOTE', 'REGEXP', 'REPEAT', 'REPLACE', 'REVERSE', 'RIGHT', 'RPAD', |
114 | 'RTRIM', 'SPACE', 'STRCMP', 'SUBSTRING', 'SUBSTR', 'TRIM', 'UCASE', 'UPPER' |
115 | ]; |
116 | |
117 | /** |
118 | * Supported standard SQL date-time functions |
119 | * @var array |
120 | */ |
121 | protected static array $dateTimeFunctions = [ |
122 | 'CURRENT_DATE', 'CURRENT_TIMESTAMP', 'CURRENT_TIME', 'CURDATE', 'CURTIME', 'DATE', 'DATETIME', |
123 | 'DAY', 'EXTRACT', 'GETDATE', 'HOUR', 'LOCALTIME', 'LOCALTIMESTAMP', 'MINUTE', 'MONTH', |
124 | 'NOW', 'SECOND', 'TIME', 'TIMEDIFF', 'TIMESTAMP', 'UNIX_TIMESTAMP', 'YEAR', |
125 | ]; |
126 | |
127 | /** |
128 | * Constructor |
129 | * |
130 | * Instantiate the SQL object |
131 | * |
132 | * @param Adapter\AbstractAdapter $db |
133 | */ |
134 | public function __construct(Adapter\AbstractAdapter $db) |
135 | { |
136 | $this->db = $db; |
137 | $this->init(strtolower(get_class($db))); |
138 | } |
139 | |
140 | /** |
141 | * Determine if the DB type is MySQL |
142 | * |
143 | * @return bool |
144 | */ |
145 | public function isMysql(): bool |
146 | { |
147 | return ($this->dbType == self::MYSQL); |
148 | } |
149 | |
150 | /** |
151 | * Determine if the DB type is PostgreSQL |
152 | * |
153 | * @return bool |
154 | */ |
155 | public function isPgsql(): bool |
156 | { |
157 | return ($this->dbType == self::PGSQL); |
158 | } |
159 | |
160 | /** |
161 | * Determine if the DB type is SQL Server |
162 | * |
163 | * @return bool |
164 | */ |
165 | public function isSqlsrv(): bool |
166 | { |
167 | return ($this->dbType == self::SQLSRV); |
168 | } |
169 | |
170 | /** |
171 | * Determine if the DB type is SQLite |
172 | * |
173 | * @return bool |
174 | */ |
175 | public function isSqlite(): bool |
176 | { |
177 | return ($this->dbType == self::SQLITE); |
178 | } |
179 | |
180 | /** |
181 | * Get the current database adapter object (alias method) |
182 | * |
183 | * @return ?Adapter\AbstractAdapter |
184 | */ |
185 | public function db(): ?Adapter\AbstractAdapter |
186 | { |
187 | return $this->db; |
188 | } |
189 | |
190 | /** |
191 | * Get the current database adapter object |
192 | * |
193 | * @return ?Adapter\AbstractAdapter |
194 | */ |
195 | public function getDb(): ?Adapter\AbstractAdapter |
196 | { |
197 | return $this->db; |
198 | } |
199 | |
200 | /** |
201 | * Set the quote ID type |
202 | * |
203 | * @param string $type |
204 | * @return AbstractSql |
205 | */ |
206 | public function setIdQuoteType(string $type = self::NO_QUOTE): AbstractSql |
207 | { |
208 | if (defined('Pop\Db\Sql::' . $type)) { |
209 | $this->idQuoteType = $type; |
210 | $this->initQuoteType(); |
211 | } |
212 | return $this; |
213 | } |
214 | |
215 | /** |
216 | * Set the placeholder |
217 | * |
218 | * @param string $placeholder |
219 | * @return AbstractSql |
220 | */ |
221 | public function setPlaceholder(string $placeholder): AbstractSql |
222 | { |
223 | $this->placeholder = $placeholder; |
224 | return $this; |
225 | } |
226 | |
227 | /** |
228 | * Get the current database type |
229 | * |
230 | * @return ?string |
231 | */ |
232 | public function getDbType(): ?string |
233 | { |
234 | return $this->dbType; |
235 | } |
236 | |
237 | /** |
238 | * Get the SQL placeholder |
239 | * |
240 | * @return ?string |
241 | */ |
242 | public function getPlaceholder(): ?string |
243 | { |
244 | return $this->placeholder; |
245 | } |
246 | |
247 | /** |
248 | * Get the quote ID type |
249 | * |
250 | * @return string |
251 | */ |
252 | public function getIdQuoteType(): string |
253 | { |
254 | return $this->idQuoteType; |
255 | } |
256 | |
257 | /** |
258 | * Get open quote |
259 | * |
260 | * @return ?string |
261 | */ |
262 | public function getOpenQuote(): ?string |
263 | { |
264 | return $this->openQuote; |
265 | } |
266 | |
267 | /** |
268 | * Get close quote |
269 | * |
270 | * @return ?string |
271 | */ |
272 | public function getCloseQuote(): ?string |
273 | { |
274 | return $this->closeQuote; |
275 | } |
276 | |
277 | /** |
278 | * Get parameter count |
279 | * |
280 | * @return int |
281 | */ |
282 | public function getParameterCount(): int |
283 | { |
284 | return $this->parameterCount; |
285 | } |
286 | |
287 | /** |
288 | * Increment parameter count |
289 | * |
290 | * @return AbstractSql |
291 | */ |
292 | public function incrementParameterCount(): AbstractSql |
293 | { |
294 | $this->parameterCount++; |
295 | return $this; |
296 | } |
297 | |
298 | /** |
299 | * Decrement parameter count |
300 | * |
301 | * @return AbstractSql |
302 | */ |
303 | public function decrementParameterCount(): AbstractSql |
304 | { |
305 | $this->parameterCount--; |
306 | return $this; |
307 | } |
308 | |
309 | /** |
310 | * Check if value is parameter placeholder |
311 | * |
312 | * @param mixed $value |
313 | * @param ?string $column |
314 | * @return bool |
315 | */ |
316 | public function isParameter(mixed $value, ?string $column = null): bool |
317 | { |
318 | return ((!empty($value) && ($column !== null) && ((':' . $column) == $value)) || |
319 | ((preg_match('/^\$\d*\d$/', (string)$value) == 1)) || |
320 | (($value == '?'))); |
321 | } |
322 | |
323 | /** |
324 | * Get parameter placeholder value |
325 | * |
326 | * @param mixed $value |
327 | * @param ?string $column |
328 | * @return string |
329 | */ |
330 | public function getParameter(mixed $value, ?string $column = null): string |
331 | { |
332 | $detectedDbType = null; |
333 | $parameter = $value; |
334 | |
335 | // SQLITE |
336 | if (($column !== null) && ((':' . $column) == $value)) { |
337 | $detectedDbType = self::SQLITE; |
338 | // PGSQL |
339 | } else if (preg_match('/^\$\d*\d$/', $value) == 1) { |
340 | $detectedDbType = self::PGSQL; |
341 | // MYSQL/SQLSRV |
342 | } else if ($value == '?') { |
343 | $detectedDbType = self::MYSQL; |
344 | } |
345 | |
346 | $this->incrementParameterCount(); |
347 | |
348 | // If the parameter is given in a different format than what the db expects, translate it |
349 | $realDbType = $this->dbType; |
350 | if ($this->placeholder == ':') { |
351 | // Either native SQLITE or PDO, in which case also use :param syntax |
352 | $realDbType = self::SQLITE; |
353 | } |
354 | |
355 | if (($detectedDbType !== null) && ($realDbType != $detectedDbType)) { |
356 | switch ($realDbType) { |
357 | case self::MYSQL: |
358 | case self::SQLSRV: |
359 | $parameter = '?'; |
360 | break; |
361 | case self::PGSQL: |
362 | $parameter = '$' . $this->parameterCount; |
363 | break; |
364 | case self::SQLITE: |
365 | if ($column !== null) { |
366 | $parameter = ':' . $column; |
367 | } |
368 | break; |
369 | } |
370 | } |
371 | |
372 | return $parameter; |
373 | } |
374 | |
375 | /** |
376 | * Quote the identifier |
377 | * |
378 | * @param string $identifier |
379 | * @return string |
380 | */ |
381 | public function quoteId(string $identifier): string |
382 | { |
383 | $quotedId = null; |
384 | |
385 | if (str_contains($identifier, '.')) { |
386 | $identifierAry = explode('.', $identifier); |
387 | foreach ($identifierAry as $key => $val) { |
388 | $identifierAry[$key] = ($val != '*') ? $this->openQuote . $val . $this->closeQuote : $val; |
389 | } |
390 | $quotedId = implode('.', $identifierAry); |
391 | } else if (($identifier != '*') && |
392 | ((preg_match('/^\$\d*\d$/', $identifier) == 0) && !is_int($identifier) && |
393 | !is_float($identifier) && (preg_match('/^\d*$/', $identifier) == 0))) { |
394 | $quotedId = $this->openQuote . $identifier . $this->closeQuote; |
395 | } else { |
396 | $quotedId = $identifier; |
397 | } |
398 | |
399 | return $quotedId; |
400 | } |
401 | |
402 | /** |
403 | * Quote the value (if it is not a numeric value) |
404 | * |
405 | * @param ?string $value |
406 | * @param bool $force |
407 | * @return float|int|string |
408 | */ |
409 | public function quote(?string $value = null, bool $force = false): float|int|string |
410 | { |
411 | if ($force) { |
412 | if (($value == '') || |
413 | ((preg_match('/^\$\d*\d$/', $value) == 0) && |
414 | !is_int($value) && !is_float($value) && (preg_match('/^\d*$/', $value) == 0))) { |
415 | $value = "'" . $this->db->escape($value) . "'"; |
416 | } |
417 | } else { |
418 | if (($value == '') || |
419 | (($value != '?') && |
420 | (!empty($this->openQuote) && !empty($this->closeQuote) && |
421 | !(str_starts_with($value, $this->openQuote) && str_ends_with($value, $this->closeQuote))) && |
422 | (!str_starts_with($value, ':')) && (preg_match('/^\$\d*\d$/', $value) == 0) && |
423 | !is_int($value) && !is_float($value) && (preg_match('/^\d*$/', $value) == 0))) { |
424 | $value = "'" . $this->db->escape($value) . "'"; |
425 | } |
426 | } |
427 | |
428 | return $value; |
429 | } |
430 | |
431 | /** |
432 | * Initialize SQL object |
433 | * |
434 | * @param string $adapter |
435 | * @return void |
436 | */ |
437 | protected function init(string $adapter): void |
438 | { |
439 | if (stripos($adapter, 'pdo') !== false) { |
440 | $adapter = $this->db->getType(); |
441 | $this->placeholder = ':'; |
442 | } |
443 | |
444 | if (stripos($adapter, 'mysql') !== false) { |
445 | $this->dbType = self::MYSQL; |
446 | $this->idQuoteType = self::BACKTICK; |
447 | if ($this->placeholder === null) { |
448 | $this->placeholder = '?'; |
449 | } |
450 | } else if (stripos($adapter, 'pgsql') !== false) { |
451 | $this->dbType = self::PGSQL; |
452 | $this->idQuoteType = self::DOUBLE_QUOTE; |
453 | if ($this->placeholder === null) { |
454 | $this->placeholder = '$'; |
455 | } |
456 | } else if (stripos($adapter, 'sqlite') !== false) { |
457 | $this->dbType = self::SQLITE; |
458 | $this->idQuoteType = self::DOUBLE_QUOTE; |
459 | if ($this->placeholder === null) { |
460 | $this->placeholder = ':'; |
461 | } |
462 | } else if (stripos($adapter, 'sqlsrv') !== false) { |
463 | $this->dbType = self::SQLSRV; |
464 | $this->idQuoteType = self::BRACKET; |
465 | if ($this->placeholder === null) { |
466 | $this->placeholder = '?'; |
467 | } |
468 | } |
469 | |
470 | $this->initQuoteType(); |
471 | } |
472 | |
473 | /** |
474 | * Initialize quite type |
475 | * |
476 | * @return void |
477 | */ |
478 | protected function initQuoteType(): void |
479 | { |
480 | switch ($this->idQuoteType) { |
481 | case (self::BACKTICK): |
482 | $this->openQuote = '`'; |
483 | $this->closeQuote = '`'; |
484 | break; |
485 | case (self::DOUBLE_QUOTE): |
486 | $this->openQuote = '"'; |
487 | $this->closeQuote = '"'; |
488 | break; |
489 | case (self::BRACKET): |
490 | $this->openQuote = '['; |
491 | $this->closeQuote = ']'; |
492 | break; |
493 | case (self::NO_QUOTE): |
494 | $this->openQuote = null; |
495 | $this->closeQuote = null; |
496 | break; |
497 | } |
498 | } |
499 | |
500 | /** |
501 | * Check if value contains a standard SQL supported function |
502 | * |
503 | * @param string $value |
504 | * @return bool |
505 | */ |
506 | public static function isSupportedFunction(string $value): bool |
507 | { |
508 | if (str_contains($value, '(')) { |
509 | $value = trim(substr($value, 0, strpos($value, '('))); |
510 | } |
511 | $value = strtoupper($value); |
512 | |
513 | return (in_array($value, static::$aggregateFunctions) || |
514 | in_array($value, static::$mathFunctions) || |
515 | in_array($value, static::$stringFunctions) || |
516 | in_array($value, static::$dateTimeFunctions)); |
517 | } |
518 | |
519 | } |