public function run()
{
$tags = BlogTag::findTagWeights();
$str = '';
foreach ($tags as $tag => $weight) {
$link = Html::a(Html::encode($tag), Yii::$app->getUrlManager()->createUrl(['blog/default/index', 'tag' => $tag]));
$str .= Html::tag('span', $link, ['class' => 'tag', 'style' => "font-size:{$weight}pt"]) . ",\n";
}
return $this->render('portal', ['title' => $this->title, 'content' => $str]);
}
/**
* Creates data provider instance with search query applied
*
* @param array $params
*
* @return ActiveDataProvider
*/
public function search($params)
{
$query = BlogTag::find();
$query->orderBy(['frequency' => SORT_DESC]);
$dataProvider = new ActiveDataProvider(['query' => $query]);
if (!($this->load($params) && $this->validate())) {
return $dataProvider;
}
$query->andFilterWhere(['id' => $this->id, 'frequency' => $this->frequency]);
$query->andFilterWhere(['like', 'name', $this->name]);
return $dataProvider;
}
/**
* Finds the Tag model based on its primary key value.
* If the model is not found, a 404 HTTP exception will be thrown.
* @param string $id
* @return Tag the loaded model
* @throws NotFoundHttpException if the model cannot be found
*/
protected function findModel($id)
{
if (($model = BlogTag::findOne($id)) !== null) {
return $model;
} else {
throw new NotFoundHttpException('The requested page does not exist.');
}
}
public static function findTagWeights($limit = 20)
{
$query = BlogTag::find()->orderBy(['frequency' => SORT_DESC]);
$cacheId = Yii::$app->params["domain"] . '_blog_tag_' . md5(serialize($query));
$models = Yii::$app->cache->get($cacheId);
if ($models === false) {
$models = $query->all();
Yii::$app->cache->set($cacheId, $models, 3600);
}
$total = 0;
foreach ($models as $model) {
$total += $model->frequency;
}
$tags = [];
if ($total > 0) {
foreach ($models as $model) {
$tags[$model->name] = 8 + (int) (16 * $model->frequency / ($total + 10));
}
ksort($tags);
}
return $tags;
}
/**
*
*/
public function getTagLinks()
{
$links = [];
foreach (BlogTag::string2array($this->tags) as $tag) {
$links[] = Html::a($tag, Yii::$app->getUrlManager()->createUrl(['blog/default/index', 'tag' => $tag]));
}
return $links;
}