/**
* @return array
* @throws MethodNotAllowedHttpException
*/
public function run()
{
if (!Yii::$app->request->getIsAjax() || !Yii::$app->request->getIsPost()) {
throw new MethodNotAllowedHttpException(Yii::t('vote', 'Forbidden method'), 405);
}
Yii::$app->response->format = Response::FORMAT_JSON;
$module = $this->getModule();
$form = new VoteForm();
$form->load(Yii::$app->request->post());
$this->trigger(self::EVENT_BEFORE_VOTE, $event = $this->createEvent($form, $response = []));
if ($form->validate()) {
$settings = $module->getSettingsForEntity($form->entity);
if ($settings['type'] == Module::TYPE_VOTING) {
$response = $this->processVote($form);
} else {
$response = $this->processToggle($form);
}
$response = array_merge($event->responseData, $response);
$response['aggregate'] = VoteAggregate::findOne(['entity' => $module->encodeEntity($form->entity), 'target_id' => $form->targetId]);
} else {
$response = ['success' => false, 'errors' => $form->errors];
}
$this->trigger(self::EVENT_AFTER_VOTE, $event = $this->createEvent($form, $response));
return $event->responseData;
}
/**
* Include vote aggregate model/values.
*
* @param $entity
* @return \yii\base\Component
* @throws \yii\base\InvalidConfigException
*/
public function withVoteAggregate($entity)
{
$entityEncoded = $this->getModule()->encodeEntity($entity);
$voteAggregateTable = VoteAggregate::tableName();
$model = new $this->owner->modelClass();
$this->initSelect($model);
$this->owner->leftJoin("{$voteAggregateTable} {$entity}Aggregate", ["{$entity}Aggregate.target_id" => new Expression("`{$model->tableSchema->name}`.`{$model->primaryKey()[0]}`"), "{$entity}Aggregate.entity" => $entityEncoded])->addSelect([new Expression("`{$entity}Aggregate`.`positive` as `{$entity}Positive`"), new Expression("`{$entity}Aggregate`.`negative` as `{$entity}Negative`"), new Expression("`{$entity}Aggregate`.`rating` as `{$entity}Rating`")]);
return $this->owner;
}
/**
* Initialize widget with default options.
*
* @throws \yii\base\InvalidConfigException
*/
public function initDefaults()
{
$this->voteUrl = isset($this->voteUrl) ?: Yii::$app->getUrlManager()->createUrl(['vote/default/vote']);
$this->targetId = isset($this->targetId) ?: $this->model->getPrimaryKey();
if (!isset($this->aggregateModel)) {
$this->aggregateModel = $this->isBehaviorIncluded() ? $this->model->getVoteAggregate($this->entity) : VoteAggregate::findOne(['entity' => $this->getModule()->encodeEntity($this->entity), 'target_id' => $this->targetId]);
}
if (!isset($this->userValue)) {
$this->userValue = $this->isBehaviorIncluded() ? $this->model->getUserValue($this->entity) : null;
}
}
/**
* @param $entity
* @param $targetId
*/
public static function updateRating($entity, $targetId)
{
$positive = static::find()->where(['entity' => $entity, 'target_id' => $targetId, 'value' => self::VOTE_POSITIVE])->count();
$negative = static::find()->where(['entity' => $entity, 'target_id' => $targetId, 'value' => self::VOTE_NEGATIVE])->count();
if ($positive + $negative !== 0) {
$rating = (($positive + 1.9208) / ($positive + $negative) - 1.96 * SQRT($positive * $negative / ($positive + $negative) + 0.9604) / ($positive + $negative)) / (1 + 3.8416 / ($positive + $negative));
} else {
$rating = 0;
}
$rating = round($rating * 10, 2);
$aggregateModel = VoteAggregate::findOne(['entity' => $entity, 'target_id' => $targetId]);
if ($aggregateModel == null) {
$aggregateModel = new VoteAggregate();
$aggregateModel->entity = $entity;
$aggregateModel->target_id = $targetId;
}
$aggregateModel->positive = $positive;
$aggregateModel->negative = $negative;
$aggregateModel->rating = $rating;
$aggregateModel->save();
}
