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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 Yiisoft\Arrays\ArrayHelper; |
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use Yiisoft\Form\FormModelInterface; |
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use Yiisoft\Html\Html; |
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use Yiisoft\Widget\Widget; |
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use function array_values; |
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final class ErrorSummary extends Widget |
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{ |
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private FormModelInterface $data; |
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private array $options = []; |
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/** |
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* Generates a summary of the validation errors. |
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* |
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* @throws \JsonException |
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* |
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* @return string the generated error summary |
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*/ |
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public function run(): string |
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{ |
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$new = clone $this; |
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$header = $new->options['header'] ?? '<p>Please fix the following errors:</p>'; |
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$footer = ArrayHelper::remove($new->options, 'footer', ''); |
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$encode = ArrayHelper::remove($new->options, 'encode', true); |
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$showAllErrors = ArrayHelper::remove($new->options, 'showAllErrors', false); |
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unset($new->options['header']); |
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$lines = $new->collectErrors($new->data, $encode, $showAllErrors); |
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if (empty($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->options['style'] = isset($new->options['style']) |
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? rtrim((string)$new->options['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 Html::tag('div', $header . $content . $footer) |
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->attributes($new->options) |
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->encode(false) |
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->render(); |
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} |
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/** |
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* Set form model, name and options for the widget. |
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* |
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* @param FormModelInterface $data Form model. |
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* @param array $options The HTML attributes for the widget container tag. |
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* See {@see \Yiisoft\Html\Html::renderTagAttributes()} for details on how attributes are being rendered. |
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* |
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* @return self |
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*/ |
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public function config(FormModelInterface $data, array $options = []): self |
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{ |
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$new = clone $this; |
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$new->data = $data; |
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$new->options = $options; |
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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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* @param bool $encode , if set to false then the error messages won't be encoded. |
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* @param bool $showAllErrors , if set to true every error message for each attribute will be shown otherwise only |
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* the first error message for each attribute will be shown. |
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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(FormModelInterface $form, bool $encode, bool $showAllErrors): array |
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{ |
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$lines = $form->getErrorSummary($showAllErrors); |
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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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$lines = array_values($lines); |
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if ($encode) { |
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foreach ($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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yiisoft /
form
