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Update Alert.php to display multiple flash messages for the session.

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The previous alert widget within the advanced/basic app does not render multiple flash messages. The current implementation allows display of all flash messages assigned through setFlash. Also a validation is done for allowed bootstrap alert types.
This commit is contained in:
Kartik Visweswaran
2013-11-20 17:50:47 +05:30
parent 2d5f4e5618
commit 8fc77afc63
1 changed files with 27 additions and 16 deletions
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37
apps/advanced/frontend/widgets/Alert.php
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@@ -8,36 +8,47 @@
namespace frontend\widgets; namespace frontend\widgets;
use yii\helpers\Html; use yii\helpers\Html;
use yii\bootstrap\Widget;
use yii\bootstrap\Alert as BsAlert;
/** /**
* Alert widget renders a message from session flash. You can set message as following: * Alert widget renders a message from session flash. All flash messages are displayed
* in the sequence they were assigned using setFlash. You can set message as following:
* *
* - \Yii::$app->getSession()->setFlash('error', 'This is the message'); * - \Yii::$app->getSession()->setFlash('error', 'This is the message');
* - \Yii::$app->getSession()->setFlash('success', 'This is the message'); * - \Yii::$app->getSession()->setFlash('success', 'This is the message');
* - \Yii::$app->getSession()->setFlash('info', 'This is the message'); * - \Yii::$app->getSession()->setFlash('info', 'This is the message');
* *
* @author Alexander Makarov <sam@rmcerative.ru> * @author Alexander Makarov <sam@rmcerative.ru>
* @author Kartik Visweswaran <kartikv2@gmail.com>
*/ */
class Alert extends \yii\bootstrap\Alert class Alert extends Widget
{ {
private $_doNotRender = false; private $_doNotRender = true;
public $allowedTypes = ['error', 'danger', 'success', 'info', 'warning'];
public function init() public function init()
{ {
if ($this->body = \Yii::$app->getSession()->getFlash('error', null, true)) {
Html::addCssClass($this->options, 'alert-danger');
} elseif ($this->body = \Yii::$app->getSession()->getFlash('success', null, true)) {
Html::addCssClass($this->options, 'alert-success');
} elseif ($this->body = \Yii::$app->getSession()->getFlash('info', null, true)) {
Html::addCssClass($this->options, 'alert-info');
} elseif ($this->body = \Yii::$app->getSession()->getFlash('warning', null, true)) {
Html::addCssClass($this->options, 'alert-warning');
} else {
$this->_doNotRender = true; $this->_doNotRender = true;
return; $session = \Yii::$app->getSession();
$flashes = $session->getAllFlashes();
foreach ($flashes as $type => $message) {
if (in_array($type, $this->allowedTypes)) {
$class = ($type === 'error') ? 'alert-danger' : 'alert-' . $type;
Html::addCssClass($this->options, $class);
echo BsAlert::widget(array(
'body' => $message,
'options' => $this->options
));
$session->removeFlash($type);
$this->_doNotRender = false;
}
} }
if (!$this->_doNotRender) {
parent::init(); parent::init();
} }
}
public function run() public function run()
{ {