testing

AphrontErrorView.php
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			<?php

			final class AphrontErrorView extends AphrontView {

			const SEVERITY_ERROR = 'error';
			const SEVERITY_WARNING = 'warning';
			const SEVERITY_NOTICE = 'notice';
			const SEVERITY_NODATA = 'nodata';

			private $title;
			private $errors;
			private $severity;
			private $id;

			public function setTitle($title) {
			$this->title = $title;
			return $this;
			}

			public function setSeverity($severity) {
			$this->severity = $severity;
			return $this;
			}

			public function setErrors(array $errors) {
			$this->errors = $errors;
			return $this;
			}

			public function setID($id) {
			$this->id = $id;
			return $this;
			}

			final public function render() {

			require_celerity_resource('aphront-error-view-css');

			$errors = $this->errors;
			if ($errors) {
			$list = array();
			foreach ($errors as $error) {
			$list[] = phutil_tag(
			'li',
			array(),
			$error);
			}
			$list = phutil_tag(
			'ul',
			array(
			'class' => 'aphront-error-view-list',
			),
			$list);
			} else {
			$list = null;
			}

			$title = $this->title;
			if (strlen($title)) {
			$title = phutil_tag(
			'h1',
			array(
			'class' => 'aphront-error-view-head',
			),
			$title);
			} else {
			$title = null;
			}

			$this->severity = nonempty($this->severity, self::SEVERITY_ERROR);

			$more_classes = array();
			$more_classes[] = 'aphront-error-severity-'.$this->severity;
			$more_classes = implode(' ', $more_classes);

			return phutil_render_tag(
			'div',
			array(
			'id' => $this->id,
			'class' => 'aphront-error-view '.$more_classes,
			),
			array(
			$title,
			phutil_render_tag(
			'div',
			array(
			'class' => 'aphront-error-view-body',
			),
			$this->renderChildren().
			$list),
			));
			}
			}