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| Name | Lines | Methods | CRAP | ||||
|---|---|---|---|---|---|---|---|
| __construct | 50.00% | 1 / 2 | 0.00% | 0 / 1 | 4.12 | ||
| defaultMessage | 66.66% | 2 / 3 | 0.00% | 0 / 1 | 7.33 | ||
| validate | 62.50% | 5 / 8 | 0.00% | 0 / 1 | 15.27 | ||
| unit | 100.00% | 1 / 1 | 100.00% | 1 / 1 | 2 | ||
| [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 | ||
| 17 | final class Length extends Constraint | |
| 18 | { | |
| 19 | /** | |
| 20 | * Create a length constraint. | |
| 21 | * | |
| 22 | * @param int|null $min The minimum length, or null for no minimum. | |
| 23 | * @param int|null $max The maximum length, or null for no maximum. | |
| 24 | * @throws \InvalidArgumentException If both $min and $max are null. | |
| 25 | */ | |
| 26 | public function __construct(private readonly int|null $min = null, private readonly int|null $max = null) | |
| 27 | { | |
| 28 | if ($min === null && $max === null) { | |
| 29 | throw new \InvalidArgumentException('Length constraint requires at least one of $min or $max.'); | |
| 30 | } | |
| 31 | } | |
| 32 | ||
| 33 | /** | |
| 34 | * @return string|Closure(FieldContext): string The default error message. | |
| 35 | */ | |
| 36 | #[Override] | |
| 37 | protected function defaultMessage(): string|Closure|null | |
| 38 | { | |
| 39 | return fn(FieldContext $ctx) => match (true) { | |
| 40 | $this->min !== null && $this->max === null => "The {$ctx->field} field must be at least {$this->min} {$this->unit($ctx)} long.", | |
| 41 | $this->min === null && $this->max !== null => "The {$ctx->field} field must not exceed {$this->max} {$this->unit($ctx)} long.", | |
| 42 | default => "The {$ctx->field} field must be between {$this->min} and {$this->max} {$this->unit($ctx)} long." | |
| 43 | }; | |
| 44 | } | |
| 45 | ||
| 46 | /** | |
| 47 | * Validate the length of a string or array value. | |
| 48 | * | |
| 49 | * Strings are measured in characters (via `mb_strlen`), arrays in item | |
| 50 | * count. Non-string, non-array values always fail. | |
| 51 | * | |
| 52 | * @param FieldContext $ctx The context of the field being validated. | |
| 53 | * @return bool True if the value is within the allowed length, false otherwise. | |
| 54 | */ | |
| 55 | #[Override] | |
| 56 | public function validate(FieldContext $ctx): bool | |
| 57 | { | |
| 58 | $length = match (true) { | |
| 59 | is_string($ctx->value) => mb_strlen($ctx->value), | |
| 60 | is_array($ctx->value) => count($ctx->value), | |
| 61 | default => null, | |
| 62 | }; | |
| 63 | ||
| 64 | if ($length === null) { | |
| 65 | return false; | |
| 66 | } | |
| 67 | ||
| 68 | return match (true) { | |
| 69 | $this->min !== null && $length < $this->min => false, | |
| 70 | $this->max !== null && $length > $this->max => false, | |
| 71 | default => true | |
| 72 | }; | |
| 73 | } | |
| 74 | ||
| 75 | /** | |
| 76 | * Describe the unit of measurement for the current value. | |
| 77 | * | |
| 78 | * @param FieldContext $ctx The context of the field being validated. | |
| 79 | * @return string Either `items` for arrays or `characters` for strings. | |
| 80 | */ | |
| 81 | private function unit(FieldContext $ctx): string | |
| 82 | { | |
| 83 | return is_array($ctx->value) ? 'items' : 'characters'; | |
| 84 | } | |
| 85 | } |
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 | } |