audiobookshelf/server/models/PlaybackSession.js
2023-03-19 15:19:22 -05:00

81 lines
2.4 KiB
JavaScript

const { DataTypes, Model } = require('sequelize')
module.exports = (sequelize) => {
class PlaybackSession extends Model {
getMediaItem(options) {
if (!this.mediaItemType) return Promise.resolve(null)
const mixinMethodName = `get${sequelize.uppercaseFirst(this.mediaItemType)}`
return this[mixinMethodName](options)
}
}
PlaybackSession.init({
id: {
type: DataTypes.UUID,
defaultValue: DataTypes.UUIDV4,
primaryKey: true
},
mediaItemId: DataTypes.UUIDV4,
mediaItemType: DataTypes.STRING,
displayTitle: DataTypes.STRING,
displayAuthor: DataTypes.STRING,
duration: DataTypes.FLOAT,
playMethod: DataTypes.STRING,
mediaPlayer: DataTypes.STRING,
startTime: DataTypes.FLOAT,
currentTime: DataTypes.FLOAT,
serverVersion: DataTypes.STRING
}, {
sequelize,
modelName: 'playbackSession'
})
const { book, podcastEpisode, user, device } = sequelize.models
user.hasMany(PlaybackSession)
PlaybackSession.belongsTo(user)
device.hasMany(PlaybackSession)
PlaybackSession.belongsTo(device)
book.hasMany(PlaybackSession, {
foreignKey: 'mediaItemId',
constraints: false,
scope: {
mediaItemType: 'book'
}
})
PlaybackSession.belongsTo(book, { foreignKey: 'mediaItemId', constraints: false })
podcastEpisode.hasOne(PlaybackSession, {
foreignKey: 'mediaItemId',
constraints: false,
scope: {
mediaItemType: 'podcastEpisode'
}
})
PlaybackSession.belongsTo(podcastEpisode, { foreignKey: 'mediaItemId', constraints: false })
PlaybackSession.addHook('afterFind', findResult => {
if (!findResult) return
if (!Array.isArray(findResult)) findResult = [findResult]
for (const instance of findResult) {
if (instance.mediaItemType === 'book' && instance.book !== undefined) {
instance.mediaItem = instance.book
instance.dataValues.mediaItem = instance.dataValues.book
} else if (instance.mediaItemType === 'podcastEpisode' && instance.podcastEpisode !== undefined) {
instance.mediaItem = instance.podcastEpisode
instance.dataValues.mediaItem = instance.dataValues.podcastEpisode
}
// To prevent mistakes:
delete instance.book
delete instance.dataValues.book
delete instance.podcastEpisode
delete instance.dataValues.podcastEpisode
}
})
return PlaybackSession
}