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| Name | Lines | Methods | CRAP | ||||
|---|---|---|---|---|---|---|---|
| __construct | 100.00% | 1 / 1 | 100.00% | 1 / 1 | 1 | ||
| of | 100.00% | 1 / 1 | 100.00% | 1 / 1 | 1 | ||
| defaultMessage | 100.00% | 1 / 1 | 100.00% | 1 / 1 | 1 | ||
| validate | 100.00% | 26 / 26 | 100.00% | 1 / 1 | 9 | ||
| [Lucent\Validation\Constraint] withMessage | 100.00% | 2 / 2 | 100.00% | 1 / 1 | 1 | ||
| [Lucent\Validation\Constraint] message | 100.00% | 6 / 6 | 100.00% | 1 / 1 | 3 | ||
| 22 | final class One extends Constraint | |
| 23 | { | |
| 24 | /** | |
| 25 | * @param array<int, Constraint> $constraints The constraints to apply. | |
| 26 | */ | |
| 27 | private function __construct(private readonly array $constraints) {} | |
| 28 | ||
| 29 | /** | |
| 30 | * Create a "one" combinator from one or more constraints. | |
| 31 | * | |
| 32 | * @param Constraint ...$constraints The constraints of which exactly one must pass. | |
| 33 | * @return self A new One instance. | |
| 34 | */ | |
| 35 | public static function of(Constraint ...$constraints): self | |
| 36 | { | |
| 37 | return new self($constraints); | |
| 38 | } | |
| 39 | ||
| 40 | /** | |
| 41 | * No message of its own — the generic "exactly one" message and the | |
| 42 | * matched constraints' messages are recorded directly on the result in | |
| 43 | * {@see validate()}. | |
| 44 | * | |
| 45 | * @return string|\Closure(FieldContext): ?string|null Always null. | |
| 46 | */ | |
| 47 | #[Override] | |
| 48 | protected function defaultMessage(): string|\Closure|null | |
| 49 | { | |
| 50 | return null; | |
| 51 | } | |
| 52 | ||
| 53 | /** | |
| 54 | * Validate that exactly one wrapped constraint passes. | |
| 55 | * | |
| 56 | * Each alternative is validated in isolation against a fresh, throwaway | |
| 57 | * {@see Result}, so a losing branch's errors *and* values never leak into | |
| 58 | * the final result. If exactly one passes, its result is committed via | |
| 59 | * {@see Result::merge()} and the field passes. If more than one passes, | |
| 60 | * the generic "must match exactly one" message is recorded first, | |
| 61 | * followed by each matched constraint's message, so the user sees which | |
| 62 | * rules the value matched (and therefore must not both match). If none | |
| 63 | * pass, a single generic message is recorded so the caller sees one clear | |
| 64 | * error rather than a pile-up of every failed alternative's errors. | |
| 65 | * | |
| 66 | * @param FieldContext $ctx The context of the field being validated. | |
| 67 | * @return bool True if exactly one constraint passes, false otherwise. | |
| 68 | */ | |
| 69 | #[Override] | |
| 70 | public function validate(FieldContext $ctx): bool | |
| 71 | { | |
| 72 | $matched = []; | |
| 73 | $branchResults = []; | |
| 74 | $failed = []; | |
| 75 | ||
| 76 | foreach ($this->constraints as $constraint) { | |
| 77 | [$passed, $branch] = $ctx->branch($constraint); | |
| 78 | ||
| 79 | if ($passed) { | |
| 80 | $matched[] = $constraint; | |
| 81 | $branchResults[] = $branch; | |
| 82 | } else { | |
| 83 | $failed[] = [$constraint, $branch]; | |
| 84 | } | |
| 85 | } | |
| 86 | ||
| 87 | if (count($matched) === 1) { | |
| 88 | // Exactly one alternative passed — commit its result so the | |
| 89 | // winning branch's normalized values are preserved. | |
| 90 | $ctx->result->merge($branchResults[0]); | |
| 91 | return true; | |
| 92 | } | |
| 93 | ||
| 94 | if (count($matched) > 1) { | |
| 95 | // More than one matched — the field is invalid. Record the | |
| 96 | // generic framing message first, then each matched constraint's | |
| 97 | // message so the user sees which rules the value matched (and | |
| 98 | // therefore must not both match). | |
| 99 | $ctx->result->addError($ctx->field, "The {$ctx->field} must match exactly one of the given rules."); | |
| 100 | foreach ($matched as $constraint) { | |
| 101 | $message = $constraint->message($ctx); | |
| 102 | if ($message !== null) { | |
| 103 | $ctx->result->addError($ctx->field, $message); | |
| 104 | } | |
| 105 | } | |
| 106 | return false; | |
| 107 | } | |
| 108 | ||
| 109 | // No alternative matched — record the generic framing message first, | |
| 110 | // then surface each failed alternative's specific errors so the | |
| 111 | // caller sees the rules that were expected. Simple constraints (e.g. | |
| 112 | // Length) report their message at the field path; composite ones | |
| 113 | // (e.g. Shape) record child errors at their dotted paths. | |
| 114 | $ctx->result->addError($ctx->field, "The {$ctx->field} must match exactly one of the given rules."); | |
| 115 | foreach ($failed as [$constraint, $branch]) { | |
| 116 | $ctx->result->merge($branch); | |
| 117 | ||
| 118 | $message = $constraint->message($ctx); | |
| 119 | if ($message !== null) { | |
| 120 | $ctx->result->addError($ctx->field, $message); | |
| 121 | } | |
| 122 | } | |
| 123 | return false; | |
| 124 | } | |
| 125 | } |
Inherited from Lucent\Validation\Constraint
| 38 | final public function withMessage(string|\Closure $message): static | |
| 39 | { | |
| 40 | $this->customMessage = $message; | |
| 41 | return $this; | |
| 42 | } |
| 56 | final public function message(FieldContext $ctx): ?string | |
| 57 | { | |
| 58 | $message = $this->customMessage ?? $this->defaultMessage(); | |
| 59 | ||
| 60 | if ($message === null) { | |
| 61 | return null; | |
| 62 | } | |
| 63 | ||
| 64 | if ($message instanceof \Closure) { | |
| 65 | return call_user_func($message, $ctx); | |
| 66 | } | |
| 67 | ||
| 68 | return $message; | |
| 69 | } |