-function rateVideoRetryWrapper (req, res, next) {
- const options = {
- arguments: [ req, res ],
- errorMessage: 'Cannot update the user video rate.'
- }
-
- databaseUtils.retryTransactionWrapper(rateVideo, options, function (err) {
- if (err) return next(err)
-
- return res.type('json').status(204).end()
- })
-}
-
-function rateVideo (req, res, finalCallback) {
- const rateType = req.body.rating
- const videoInstance = res.locals.video
- const userInstance = res.locals.oauth.token.User
-
- waterfall([
- databaseUtils.startSerializableTransaction,
-
- function findPreviousRate (t, callback) {
- db.UserVideoRate.load(userInstance.id, videoInstance.id, t, function (err, previousRate) {
- return callback(err, t, previousRate)
- })
- },
-
- function insertUserRateIntoDB (t, previousRate, callback) {
- const options = { transaction: t }
-
- let likesToIncrement = 0
- let dislikesToIncrement = 0
-
- if (rateType === constants.VIDEO_RATE_TYPES.LIKE) likesToIncrement++
- else if (rateType === constants.VIDEO_RATE_TYPES.DISLIKE) dislikesToIncrement++
-
- // There was a previous rate, update it
- if (previousRate) {
- // We will remove the previous rate, so we will need to remove it from the video attribute
- if (previousRate.type === constants.VIDEO_RATE_TYPES.LIKE) likesToIncrement--
- else if (previousRate.type === constants.VIDEO_RATE_TYPES.DISLIKE) dislikesToIncrement--
-
- previousRate.type = rateType
-
- previousRate.save(options).asCallback(function (err) {
- return callback(err, t, likesToIncrement, dislikesToIncrement)
- })
- } else { // There was not a previous rate, insert a new one
- const query = {
- userId: userInstance.id,
- videoId: videoInstance.id,
- type: rateType
- }
-
- db.UserVideoRate.create(query, options).asCallback(function (err) {
- return callback(err, t, likesToIncrement, dislikesToIncrement)
- })
- }
- },
-
- function updateVideoAttributeDB (t, likesToIncrement, dislikesToIncrement, callback) {
- const options = { transaction: t }
- const incrementQuery = {
- likes: likesToIncrement,
- dislikes: dislikesToIncrement
- }
-
- // Even if we do not own the video we increment the attributes
- // It is usefull for the user to have a feedback
- videoInstance.increment(incrementQuery, options).asCallback(function (err) {
- return callback(err, t, likesToIncrement, dislikesToIncrement)
- })
- },
-
- function sendEventsToFriendsIfNeeded (t, likesToIncrement, dislikesToIncrement, callback) {
- // No need for an event type, we own the video
- if (videoInstance.isOwned()) return callback(null, t, likesToIncrement, dislikesToIncrement)
-
- const eventsParams = []
-
- if (likesToIncrement !== 0) {
- eventsParams.push({
- videoId: videoInstance.id,
- type: constants.REQUEST_VIDEO_EVENT_TYPES.LIKES,
- count: likesToIncrement
- })
- }
-
- if (dislikesToIncrement !== 0) {
- eventsParams.push({
- videoId: videoInstance.id,
- type: constants.REQUEST_VIDEO_EVENT_TYPES.DISLIKES,
- count: dislikesToIncrement
- })
- }
-
- friends.addEventsToRemoteVideo(eventsParams, t, function (err) {
- return callback(err, t, likesToIncrement, dislikesToIncrement)
- })
- },
-
- function sendQaduToFriendsIfNeeded (t, likesToIncrement, dislikesToIncrement, callback) {
- // We do not own the video, there is no need to send a quick and dirty update to friends
- // Our rate was already sent by the addEvent function
- if (videoInstance.isOwned() === false) return callback(null, t)
-
- const qadusParams = []
-
- if (likesToIncrement !== 0) {
- qadusParams.push({
- videoId: videoInstance.id,
- type: constants.REQUEST_VIDEO_QADU_TYPES.LIKES
- })
- }
-
- if (dislikesToIncrement !== 0) {
- qadusParams.push({
- videoId: videoInstance.id,
- type: constants.REQUEST_VIDEO_QADU_TYPES.DISLIKES
- })
- }
-
- friends.quickAndDirtyUpdatesVideoToFriends(qadusParams, t, function (err) {
- return callback(err, t)
- })
- },
-
- databaseUtils.commitTransaction
-
- ], function (err, t) {
- if (err) {
- // This is just a debug because we will retry the insert
- logger.debug('Cannot add the user video rate.', { error: err })
- return databaseUtils.rollbackTransaction(err, t, finalCallback)
- }
-
- logger.info('User video rate for video %s of user %s updated.', videoInstance.name, userInstance.username)
- return finalCallback(null)
- })
-}
-