Complex classes like Spec often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Spec, and based on these observations, apply Extract Interface, too.
1 | <?php |
||
99 | class Spec |
||
100 | { |
||
101 | /** |
||
102 | * @param string $functionName |
||
103 | * @param mixed[] $arguments |
||
104 | * |
||
105 | * @return PlatformFunction |
||
106 | */ |
||
107 | public static function __callStatic(string $functionName, array $arguments = []): PlatformFunction |
||
108 | { |
||
109 | return self::fun($functionName, ...$arguments); |
||
110 | } |
||
111 | |||
112 | // Logic |
||
113 | |||
114 | /** |
||
115 | * @param Filter|QueryModifier ...$specs |
||
116 | * |
||
117 | * @return AndX |
||
118 | */ |
||
119 | public static function andX(...$specs): AndX |
||
120 | { |
||
121 | return new AndX(...$specs); |
||
122 | } |
||
123 | |||
124 | /** |
||
125 | * @param Filter|QueryModifier ...$specs |
||
126 | * |
||
127 | * @return OrX |
||
128 | */ |
||
129 | public static function orX(...$specs): OrX |
||
130 | { |
||
131 | return new OrX(...$specs); |
||
132 | } |
||
133 | |||
134 | /** |
||
135 | * @param Filter $spec |
||
136 | * |
||
137 | * @return Not |
||
138 | */ |
||
139 | public static function not(Filter $spec): Not |
||
140 | { |
||
141 | return new Not($spec); |
||
142 | } |
||
143 | |||
144 | // Query modifier |
||
145 | |||
146 | /** |
||
147 | * @param string $field |
||
148 | * @param string $newAlias |
||
149 | * @param string|null $context |
||
150 | * |
||
151 | * @return Join |
||
152 | */ |
||
153 | public static function join(string $field, string $newAlias, ?string $context = null): Join |
||
157 | |||
158 | /** |
||
159 | * @param string $field |
||
160 | * @param string $newAlias |
||
161 | * @param string|null $context |
||
162 | * |
||
163 | * @return LeftJoin |
||
164 | */ |
||
165 | public static function leftJoin(string $field, string $newAlias, ?string $context = null): LeftJoin |
||
169 | |||
170 | /** |
||
171 | * @param string $field |
||
172 | * @param string $newAlias |
||
173 | * @param string|null $context |
||
174 | * |
||
175 | * @return InnerJoin |
||
176 | */ |
||
177 | public static function innerJoin(string $field, string $newAlias, ?string $context = null): InnerJoin |
||
181 | |||
182 | /** |
||
183 | * @param Field|string $field |
||
184 | * @param string|null $context |
||
185 | * |
||
186 | * @return IndexBy |
||
187 | */ |
||
188 | public static function indexBy($field, ?string $context = null): IndexBy |
||
189 | { |
||
190 | return new IndexBy($field, $context); |
||
191 | } |
||
192 | |||
193 | /** |
||
194 | * @param int $count |
||
195 | * |
||
196 | * @return Limit |
||
197 | */ |
||
198 | public static function limit(int $count): Limit |
||
199 | { |
||
200 | return new Limit($count); |
||
201 | } |
||
202 | |||
203 | /** |
||
204 | * @param int $count |
||
205 | * |
||
206 | * @return Offset |
||
207 | */ |
||
208 | public static function offset(int $count): Offset |
||
209 | { |
||
210 | return new Offset($count); |
||
211 | } |
||
212 | |||
213 | /** |
||
214 | * @param int $sliceSize |
||
215 | * @param int $sliceNumber |
||
216 | * |
||
217 | * @return Slice |
||
218 | */ |
||
219 | public static function slice(int $sliceSize, int $sliceNumber = 0): Slice |
||
220 | { |
||
221 | return new Slice($sliceSize, $sliceNumber); |
||
222 | } |
||
223 | |||
224 | /** |
||
225 | * @param Field|Alias|string $field |
||
226 | * @param string $order |
||
227 | * @param string|null $context |
||
228 | * |
||
229 | * @return OrderBy |
||
230 | */ |
||
231 | public static function orderBy($field, string $order = 'ASC', ?string $context = null): OrderBy |
||
232 | { |
||
233 | return new OrderBy($field, $order, $context); |
||
234 | } |
||
235 | |||
236 | /** |
||
237 | * @param Field|Alias|string $field |
||
238 | * @param string|null $context |
||
239 | * |
||
240 | * @return GroupBy |
||
241 | */ |
||
242 | public static function groupBy($field, ?string $context = null): GroupBy |
||
243 | { |
||
244 | return new GroupBy($field, $context); |
||
245 | } |
||
246 | |||
247 | /** |
||
248 | * @return Distinct |
||
249 | */ |
||
250 | public static function distinct(): Distinct |
||
251 | { |
||
252 | return new Distinct(); |
||
253 | } |
||
254 | |||
255 | // Selection |
||
256 | |||
257 | /** |
||
258 | * @param Selection|string ...$fields |
||
259 | * |
||
260 | * @return Select |
||
261 | */ |
||
262 | public static function select(...$fields): Select |
||
263 | { |
||
264 | return new Select(...$fields); |
||
265 | } |
||
266 | |||
267 | /** |
||
268 | * @param Selection|string ...$fields |
||
269 | * |
||
270 | * @return AddSelect |
||
271 | */ |
||
272 | public static function addSelect(...$fields): AddSelect |
||
273 | { |
||
274 | return new AddSelect(...$fields); |
||
275 | } |
||
276 | |||
277 | /** |
||
278 | * @param string $class |
||
279 | * @param Operand|mixed ...$arguments |
||
280 | * |
||
281 | * @phpstan-param class-string $class |
||
282 | * |
||
283 | * @return SelectNew |
||
284 | */ |
||
285 | public static function selectNew(string $class, ...$arguments): SelectNew |
||
286 | { |
||
287 | return new SelectNew($class, ...$arguments); |
||
288 | } |
||
289 | |||
290 | /** |
||
291 | * @param string $dqlAliasInContext |
||
292 | * |
||
293 | * @return SelectEntity |
||
294 | */ |
||
295 | public static function selectEntity(string $dqlAliasInContext): SelectEntity |
||
296 | { |
||
297 | return new SelectEntity($dqlAliasInContext); |
||
298 | } |
||
299 | |||
300 | /** |
||
301 | * @param Filter|Operand|string $expression |
||
302 | * @param string $newAlias |
||
303 | * |
||
304 | * @return SelectAs |
||
305 | */ |
||
306 | public static function selectAs($expression, string $newAlias): SelectAs |
||
307 | { |
||
308 | return new SelectAs($expression, $newAlias); |
||
309 | } |
||
310 | |||
311 | /** |
||
312 | * @param Filter|Operand|string $expression |
||
313 | * @param string $newAlias |
||
314 | * |
||
315 | * @return SelectHiddenAs |
||
316 | */ |
||
317 | public static function selectHiddenAs($expression, string $newAlias): SelectHiddenAs |
||
318 | { |
||
319 | return new SelectHiddenAs($expression, $newAlias); |
||
320 | } |
||
321 | |||
322 | // Result modifier |
||
323 | |||
324 | /** |
||
325 | * @return AsArray |
||
326 | */ |
||
327 | public static function asArray(): AsArray |
||
328 | { |
||
329 | return new AsArray(); |
||
330 | } |
||
331 | |||
332 | /** |
||
333 | * @return AsSingleScalar |
||
334 | */ |
||
335 | public static function asSingleScalar(): AsSingleScalar |
||
336 | { |
||
337 | return new AsSingleScalar(); |
||
338 | } |
||
339 | |||
340 | /** |
||
341 | * @return AsScalar |
||
342 | */ |
||
343 | public static function asScalar(): AsScalar |
||
344 | { |
||
345 | return new AsScalar(); |
||
346 | } |
||
347 | |||
348 | /** |
||
349 | * @param int $cacheLifetime How many seconds the cached entry is valid |
||
350 | * |
||
351 | * @return Cache |
||
352 | */ |
||
353 | public static function cache(int $cacheLifetime): Cache |
||
354 | { |
||
355 | return new Cache($cacheLifetime); |
||
356 | } |
||
357 | |||
358 | /** |
||
359 | * @param int $roundSeconds How may seconds to round time |
||
360 | * |
||
361 | * @return RoundDateTime |
||
362 | */ |
||
363 | public static function roundDateTimeParams(int $roundSeconds): RoundDateTime |
||
364 | { |
||
365 | return new RoundDateTime($roundSeconds); |
||
366 | } |
||
367 | |||
368 | // Filters |
||
369 | |||
370 | /** |
||
371 | * @param Operand|string $field |
||
372 | * @param string|null $context |
||
373 | * |
||
374 | * @return IsNull |
||
375 | */ |
||
376 | public static function isNull($field, ?string $context = null): IsNull |
||
377 | { |
||
378 | return new IsNull($field, $context); |
||
379 | } |
||
380 | |||
381 | /** |
||
382 | * @param Operand|string $field |
||
383 | * @param string|null $context |
||
384 | * |
||
385 | * @return IsNotNull |
||
386 | */ |
||
387 | public static function isNotNull($field, ?string $context = null): IsNotNull |
||
388 | { |
||
389 | return new IsNotNull($field, $context); |
||
390 | } |
||
391 | |||
392 | /** |
||
393 | * Make sure the $field has a value equals to $value. |
||
394 | * |
||
395 | * @param Operand|string $field |
||
396 | * @param Operand|mixed $value |
||
397 | * @param string|null $context |
||
398 | * |
||
399 | * @return In |
||
400 | */ |
||
401 | public static function in($field, $value, ?string $context = null): In |
||
402 | { |
||
403 | return new In($field, $value, $context); |
||
404 | } |
||
405 | |||
406 | /** |
||
407 | * @param Operand|string $field |
||
408 | * @param Operand|mixed $value |
||
409 | * @param string|null $context |
||
410 | * |
||
411 | * @return Not |
||
412 | */ |
||
413 | public static function notIn($field, $value, ?string $context = null): Not |
||
414 | { |
||
415 | return new Not(new In($field, $value, $context)); |
||
416 | } |
||
417 | |||
418 | /** |
||
419 | * @param Operand|string $field |
||
420 | * @param Operand|mixed $value |
||
421 | * @param string|null $context |
||
422 | * |
||
423 | * @return Equals |
||
424 | */ |
||
425 | public static function eq($field, $value, ?string $context = null): Equals |
||
426 | { |
||
427 | return new Equals($field, $value, $context); |
||
428 | } |
||
429 | |||
430 | /** |
||
431 | * @param Operand|string $field |
||
432 | * @param Operand|mixed $value |
||
433 | * @param string|null $context |
||
434 | * |
||
435 | * @return NotEquals |
||
436 | */ |
||
437 | public static function neq($field, $value, ?string $context = null): NotEquals |
||
438 | { |
||
439 | return new NotEquals($field, $value, $context); |
||
440 | } |
||
441 | |||
442 | /** |
||
443 | * @param Operand|string $field |
||
444 | * @param Operand|mixed $value |
||
445 | * @param string|null $context |
||
446 | * |
||
447 | * @return LessThan |
||
448 | */ |
||
449 | public static function lt($field, $value, ?string $context = null): LessThan |
||
450 | { |
||
451 | return new LessThan($field, $value, $context); |
||
452 | } |
||
453 | |||
454 | /** |
||
455 | * @param Operand|string $field |
||
456 | * @param Operand|mixed $value |
||
457 | * @param string|null $context |
||
458 | * |
||
459 | * @return LessOrEqualThan |
||
460 | */ |
||
461 | public static function lte($field, $value, ?string $context = null): LessOrEqualThan |
||
462 | { |
||
463 | return new LessOrEqualThan($field, $value, $context); |
||
464 | } |
||
465 | |||
466 | /** |
||
467 | * @param Operand|string $field |
||
468 | * @param Operand|mixed $value |
||
469 | * @param string|null $context |
||
470 | * |
||
471 | * @return GreaterThan |
||
472 | */ |
||
473 | public static function gt($field, $value, ?string $context = null): GreaterThan |
||
474 | { |
||
475 | return new GreaterThan($field, $value, $context); |
||
476 | } |
||
477 | |||
478 | /** |
||
479 | * @param Operand|string $field |
||
480 | * @param Operand|mixed $value |
||
481 | * @param string|null $context |
||
482 | * |
||
483 | * @return GreaterOrEqualThan |
||
484 | */ |
||
485 | public static function gte($field, $value, ?string $context = null): GreaterOrEqualThan |
||
486 | { |
||
487 | return new GreaterOrEqualThan($field, $value, $context); |
||
488 | } |
||
489 | |||
490 | /** |
||
491 | * @param Operand|string $field |
||
492 | * @param LikePattern|string $value |
||
493 | * @param string $format |
||
494 | * @param string|null $context |
||
495 | * |
||
496 | * @return Like |
||
497 | */ |
||
498 | public static function like($field, $value, string $format = Like::CONTAINS, ?string $context = null): Like |
||
499 | { |
||
500 | return new Like($field, $value, $format, $context); |
||
501 | } |
||
502 | |||
503 | /** |
||
504 | * @param string $value |
||
505 | * @param string|null $context |
||
506 | * |
||
507 | * @return InstanceOfX |
||
508 | */ |
||
509 | public static function instanceOfX($value, ?string $context = null): InstanceOfX |
||
510 | { |
||
511 | return new InstanceOfX($value, $context); |
||
512 | } |
||
513 | |||
514 | /** |
||
515 | * @param Operand|mixed $value |
||
516 | * @param Operand|string $field |
||
517 | * @param string|null $context |
||
518 | * |
||
519 | * @return MemberOfX |
||
520 | */ |
||
521 | public static function memberOfX($value, $field, ?string $context = null): MemberOfX |
||
522 | { |
||
523 | return new MemberOfX($value, $field, $context); |
||
524 | } |
||
525 | |||
526 | // Specifications |
||
527 | |||
528 | /** |
||
529 | * @param Filter|QueryModifier $spec |
||
530 | * |
||
531 | * @return CountOf |
||
532 | */ |
||
533 | public static function countOf($spec): CountOf |
||
534 | { |
||
535 | return new CountOf($spec); |
||
536 | } |
||
537 | |||
538 | /** |
||
539 | * @param Filter $spec |
||
540 | * |
||
541 | * @return Having |
||
542 | */ |
||
543 | public static function having(Filter $spec): Having |
||
544 | { |
||
545 | return new Having($spec); |
||
546 | } |
||
547 | |||
548 | // Operands |
||
549 | |||
550 | /** |
||
551 | * @param string $fieldName |
||
552 | * @param string|null $context |
||
553 | * |
||
554 | * @return Field |
||
555 | */ |
||
556 | public static function field(string $fieldName, ?string $context = null): Field |
||
560 | |||
561 | /** |
||
562 | * @param mixed $value |
||
563 | * @param int|string|null $valueType |
||
564 | * |
||
565 | * @return Value |
||
566 | */ |
||
567 | public static function value($value, $valueType = null): Value |
||
571 | |||
572 | /** |
||
573 | * @param mixed[] $values |
||
574 | * @param int|string|null $valueType |
||
575 | * |
||
576 | * @return Values |
||
577 | */ |
||
578 | public static function values(array $values, $valueType = null): Values |
||
582 | |||
583 | /** |
||
584 | * @param string $value |
||
585 | * @param string $format |
||
586 | * |
||
587 | * @return LikePattern |
||
588 | */ |
||
589 | public static function likePattern(string $value, string $format = LikePattern::CONTAINS): LikePattern |
||
593 | |||
594 | // Arithmetic operands |
||
595 | |||
596 | /** |
||
597 | * @param Operand|string $field |
||
598 | * @param Operand|mixed $value |
||
599 | * |
||
600 | * @return Addition |
||
601 | */ |
||
602 | public static function add($field, $value): Addition |
||
603 | { |
||
604 | return new Addition($field, $value); |
||
605 | } |
||
606 | |||
607 | /** |
||
608 | * @param Operand|string $field |
||
609 | * @param Operand|mixed $value |
||
610 | * |
||
611 | * @return Subtraction |
||
612 | */ |
||
613 | public static function sub($field, $value): Subtraction |
||
614 | { |
||
615 | return new Subtraction($field, $value); |
||
616 | } |
||
617 | |||
618 | /** |
||
619 | * @param Operand|string $field |
||
620 | * @param Operand|mixed $value |
||
621 | * |
||
622 | * @return Multiplication |
||
623 | */ |
||
624 | public static function mul($field, $value): Multiplication |
||
625 | { |
||
626 | return new Multiplication($field, $value); |
||
627 | } |
||
628 | |||
629 | /** |
||
630 | * @param Operand|string $field |
||
631 | * @param Operand|mixed $value |
||
632 | * |
||
633 | * @return Division |
||
634 | */ |
||
635 | public static function div($field, $value): Division |
||
639 | |||
640 | // Platform functions |
||
641 | |||
642 | /** |
||
643 | * @param Operand|string $field |
||
644 | * @param bool $distinct |
||
645 | * |
||
646 | * @return Count |
||
647 | */ |
||
648 | public static function COUNT($field, bool $distinct = false): Count |
||
652 | |||
653 | /** |
||
654 | * @param Operand|string $field |
||
655 | * @param bool $distinct |
||
656 | * |
||
657 | * @return Avg |
||
658 | */ |
||
659 | public static function AVG($field, bool $distinct = false): Avg |
||
663 | |||
664 | /** |
||
665 | * @param Operand|string $field |
||
666 | * @param bool $distinct |
||
667 | * |
||
668 | * @return Min |
||
669 | */ |
||
670 | public static function MIN($field, bool $distinct = false): Min |
||
674 | |||
675 | /** |
||
676 | * @param Operand|string $field |
||
677 | * @param bool $distinct |
||
678 | * |
||
679 | * @return Max |
||
680 | */ |
||
681 | public static function MAX($field, bool $distinct = false): Max |
||
685 | |||
686 | /** |
||
687 | * @param Operand|string $field |
||
688 | * @param bool $distinct |
||
689 | * |
||
690 | * @return Sum |
||
691 | */ |
||
692 | public static function SUM($field, bool $distinct = false): Sum |
||
696 | |||
697 | /** |
||
698 | * Add the number of days to a given date. (Supported units are YEAR, MONTH, WEEK, DAY, HOUR, MINUTE, SECOND). |
||
699 | * |
||
700 | * @param \DateTimeInterface|string|Operand $date |
||
701 | * @param int|Operand $value |
||
702 | * @param string $unit |
||
703 | * |
||
704 | * @return DateAdd |
||
705 | */ |
||
706 | public static function DATE_ADD($date, $value, string $unit): DateAdd |
||
710 | |||
711 | /** |
||
712 | * Substract the number of days from a given date. (Supported units are YEAR, MONTH, WEEK, DAY, HOUR, MINUTE, SECOND). |
||
713 | * |
||
714 | * @param \DateTimeInterface|string|Operand $date |
||
715 | * @param int|Operand $value |
||
716 | * @param string $unit |
||
717 | * |
||
718 | * @return DateSub |
||
719 | */ |
||
720 | public static function DATE_SUB($date, $value, string $unit): DateSub |
||
724 | |||
725 | /** |
||
726 | * Trim the string by the given trim char, defaults to whitespaces. |
||
727 | * |
||
728 | * @param Operand|string $string |
||
729 | * @param string $mode |
||
730 | * @param string $characters |
||
731 | */ |
||
732 | public static function TRIM($string, string $mode = Trim::BOTH, string $characters = ''): Trim |
||
736 | |||
737 | /** |
||
738 | * Call DQL function. |
||
739 | * |
||
740 | * Usage: |
||
741 | * Spec::fun('CURRENT_DATE') |
||
742 | * Spec::fun('DATE_DIFF', $date1, $date2) |
||
743 | * |
||
744 | * @param string $functionName |
||
745 | * @param mixed ...$arguments |
||
746 | * |
||
747 | * @return PlatformFunction |
||
748 | */ |
||
749 | public static function fun(string $functionName, ...$arguments): PlatformFunction |
||
753 | |||
754 | /** |
||
755 | * @param string $alias |
||
756 | * |
||
757 | * @return Alias |
||
758 | */ |
||
759 | public static function alias(string $alias): Alias |
||
763 | } |
||
764 |