/**
* Creates a new Tag model.
* If creation is successful, the browser will be redirected to the 'view' page.
* @return mixed
*/
public function actionCreate()
{
$model = new Tag();
if ($model->load(Yii::$app->request->post()) && $model->save()) {
return $this->redirect(['view', 'id' => $model->id]);
} else {
return $this->render('createTag', ['model' => $model]);
}
}
/**
* Updates an existing Blog model.
* If update is successful, the browser will be redirected to the 'view' page.
* @param integer $id
* @return mixed
*/
public function actionUpdate($id)
{
$model = $this->findModel($id);
$items = [];
foreach ($model->getTags()->all() as $item) {
$items[] = $item->title;
}
$model->tagged = implode(', ', $items);
if ($model->load(Yii::$app->request->post()) && $model->save()) {
$tags = array_unique(preg_split('/\\s*,\\s*/u', preg_replace('/\\s+/u', ' ', is_array($model->tagged) ? implode(',', $model->tagged) : $model->tagged), -1, PREG_SPLIT_NO_EMPTY));
$removed = array_diff($items, $tags);
foreach (Tag::find()->where(['in', 'title', $removed])->all() as $removedItem) {
BlogTag::deleteAll(['blog_id' => $model->id, 'tag_id' => $removedItem->id]);
$removedItem->frequency--;
$removedItem->save();
}
$added = array_diff($tags, $items);
$rows = [];
foreach ($added as $title) {
$tag = Tag::findOne(['title' => $title]);
if (!$tag) {
$tag = new Tag();
$tag->title = $title;
}
$tag->frequency++;
if (!$tag->save()) {
Yii::error("Cannot save tag " . $tag->title . json_encode($tag->getErrors()));
continue;
}
$rows[] = [$model->id, $tag->id];
}
if (!empty($rows)) {
$model->getDb()->createCommand()->batchInsert('{{%blog_tag}}', ['blog_id', 'tag_id'], $rows)->execute();
}
return $this->redirect(Yii::$app->request->referrer);
} else {
return $this->render('updateBlog', ['model' => $model]);
}
}
