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),
	));
	}
	}