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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Form\Field; |
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use InvalidArgumentException; |
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use Yiisoft\Form\Field\Base\BaseField; |
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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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/** |
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* Displays a summary of the form validation errors. If there is no validation error, field will be hidden. |
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*/ |
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final class ErrorSummary extends BaseField |
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{ |
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private ?FormModelInterface $formModel = null; |
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private bool $encode = true; |
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private bool $showAllErrors = false; |
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private array $onlyAttributes = []; |
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private string $footer = ''; |
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private array $footerAttributes = []; |
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private string $header = 'Please fix the following errors:'; |
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private array $headerAttributes = []; |
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public function formModel(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 error content should be HTML-encoded. |
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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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* Whether to show all errors. |
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*/ |
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public function showAllErrors(bool $value = true): self |
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{ |
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$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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* Specific attributes to be filtered out when rendering the error summary. |
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* |
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* @param array $names The attribute names to be included in error summary. |
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*/ |
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public function onlyAttributes(string ...$names): self |
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{ |
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$new = clone $this; |
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$new->onlyAttributes = $names; |
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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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* @return self |
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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 footer attributes for the error summary. |
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* |
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* @param array $values Attribute values indexed by attribute names. |
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* |
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* @return self |
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* |
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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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public function footerAttributes(array $values): self |
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{ |
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$new = clone $this; |
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$new->footerAttributes = $values; |
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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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* @return self |
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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 header attributes for the error summary. |
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* |
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* @param array $values Attribute values indexed by attribute names. |
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* |
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* @return self |
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* |
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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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public function headerAttributes(array $values): self |
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{ |
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$new = clone $this; |
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$new->headerAttributes = $values; |
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return $new; |
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} |
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protected function generateContent(): ?string |
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{ |
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$messages = $this->collectErrors(); |
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if (empty($messages)) { |
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return null; |
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} |
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$content = []; |
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if ($this->header !== '') { |
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$content[] = Html::p($this->header, $this->headerAttributes)->render(); |
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} |
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$content[] = Html::ul()->strings($messages, [], $this->encode)->render(); |
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if ($this->footer !== '') { |
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$content[] = Html::p($this->footer, $this->footerAttributes)->render(); |
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} |
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return implode("\n", $content); |
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} |
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/** |
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* Return array of the validation errors. |
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* |
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* @return string[] Array of the validation errors. |
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*/ |
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private function collectErrors(): array |
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{ |
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if ($this->formModel === null) { |
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throw new InvalidArgumentException('Form model is not set.'); |
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} |
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$errors = HtmlFormErrors::getErrorSummaryFirstErrors($this->formModel); |
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if ($this->showAllErrors) { |
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$errors = HtmlFormErrors::getErrorSummary($this->formModel, $this->onlyAttributes); |
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} elseif ($this->onlyAttributes !== []) { |
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$errors = array_intersect_key($errors, array_flip($this->onlyAttributes)); |
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} |
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/** |
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* If there are the same error messages for different attributes, array_unique will leave gaps between |
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* sequential keys. Applying array_values to reorder array keys. |
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* |
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* @var string[] |
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*/ |
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return array_values(array_unique($errors)); |
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} |
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} |
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yiisoft /
form
