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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Form\Widget; |
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use InvalidArgumentException; |
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use Yiisoft\Form\FormModelInterface; |
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use Yiisoft\Form\Helper\HtmlFormErrors; |
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use Yiisoft\Html\Html; |
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use Yiisoft\Html\Tag\CustomTag; |
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use Yiisoft\Widget\Widget; |
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use function array_unique; |
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use function array_values; |
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/** |
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* The error summary widget displays a summary of the errors in a form. |
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* |
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* @psalm-suppress MissingConstructor |
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*/ |
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final class ErrorSummary extends Widget |
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{ |
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private array $attributes = []; |
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private bool $encode = true; |
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private FormModelInterface $formModel; |
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private string $footer = ''; |
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private string $header = '<p>' . 'Please fix the following errors:' . '</p>'; |
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private bool $showAllErrors = false; |
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/** @psalm-param non-empty-string */ |
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private string $tag = 'div'; |
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/** |
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* The HTML attributes. The following special options are recognized. |
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* |
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* @param array $value |
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* |
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* @return static |
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* |
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* See {@see Html::renderTagAttributes()} for details on how attributes are being rendered. |
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*/ |
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public function attributes(array $value): self |
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{ |
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$new = clone $this; |
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$new->attributes = $value; |
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return $new; |
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} |
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/** |
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* Whether content should be HTML-encoded. |
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* |
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* @param bool $value |
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*/ |
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public function encode(bool $value): self |
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{ |
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$new = clone $this; |
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$new->encode = $value; |
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return $new; |
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} |
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/** |
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* Set the footer text for the error summary |
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* |
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* @param string $value |
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*/ |
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public function footer(string $value): self |
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{ |
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$new = clone $this; |
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$new->footer = $value; |
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return $new; |
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} |
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/** |
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* Set the header text for the error summary |
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* |
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* @param string $value |
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*/ |
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public function header(string $value): self |
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{ |
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$new = clone $this; |
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$new->header = $value; |
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return $new; |
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} |
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/** |
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* Set the model for the error summary. |
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* |
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* @param FormModelInterface $formModel |
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* |
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* @return static |
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*/ |
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public function model(FormModelInterface $formModel): self |
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{ |
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$new = clone $this; |
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$new->formModel = $formModel; |
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return $new; |
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} |
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/** |
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* Whether to show all errors. |
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* |
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* @param bool $value |
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* |
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* @return static |
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*/ |
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public function showAllErrors(bool $value): self |
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{ |
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$new = clone $this; |
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$new->showAllErrors = $value; |
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return $new; |
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} |
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/** |
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* Set the container tag name for the error summary. |
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* |
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* Empty to render error messages without container {@see Html::tag()}. |
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* |
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* @param string $value |
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* |
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* @return static |
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*/ |
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public function tag(string $value): self |
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{ |
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$new = clone $this; |
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$new->tag = $value; |
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return $new; |
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} |
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/** |
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* Return array of the validation errors. |
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* |
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* @return array of the validation errors. |
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*/ |
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private function collectErrors(): array |
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{ |
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$new = clone $this; |
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$errors = HtmlFormErrors::getErrorSummaryFirstErrors($new->formModel); |
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if ($new->showAllErrors) { |
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$errors = HtmlFormErrors::getErrorSummary($new->formModel); |
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} |
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/** |
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* If there are the same error messages for different attributes, array_unique will leave gaps between |
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* sequential keys. Applying array_values to reorder array keys. |
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*/ |
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$lines = array_values(array_unique($errors)); |
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if ($new->encode) { |
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/** @var string $line */ |
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foreach ($lines as &$line) { |
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$line = Html::encode($line); |
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} |
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} |
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return $lines; |
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} |
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/** |
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* Generates a summary of the validation errors. |
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* |
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* @return string the generated error summary |
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*/ |
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protected function run(): string |
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{ |
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$new = clone $this; |
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if ($new->tag === '') { |
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throw new InvalidArgumentException('Tag name cannot be empty.'); |
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} |
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/** @var array<string, string> */ |
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$lines = $new->collectErrors(); |
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if (empty($lines)) { |
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/** still render the placeholder for client-side validation use */ |
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$content = '<ul></ul>'; |
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$new->attributes['style'] = isset($new->attributes['style']) |
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? rtrim((string)$new->attributes['style'], ';') . '; display:none' : 'display:none'; |
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} else { |
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$content = '<ul><li>' . implode("</li>\n<li>", $lines) . '</li></ul>'; |
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} |
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return CustomTag::name($new->tag) |
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->attributes($new->attributes) |
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->encode(false) |
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->content($new->header . $content . $new->footer) |
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->render(); |
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} |
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} |
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