server/models/user-video-rate.js

   1 'use strict'
   2
   3 /*
   4   User rates per video.
   5
   6 */
   7
   8 const values = require('lodash/values')
   9
  10 const constants = require('../initializers/constants')
  11
  12 // ---------------------------------------------------------------------------
  13
  14 module.exports = function (sequelize, DataTypes) {
  15   const UserVideoRate = sequelize.define('UserVideoRate',
  16     {
  17       type: {
  18         type: DataTypes.ENUM(values(constants.VIDEO_RATE_TYPES)),
  19         allowNull: false
  20       }
  21     },
  22     {
  23       indexes: [
  24         {
  25           fields: [ 'videoId', 'userId', 'type' ],
  26           unique: true
  27         }
  28       ],
  29       classMethods: {
  30         associate,
  31
  32         load
  33       }
  34     }
  35   )
  36
  37   return UserVideoRate
  38 }
  39
  40 // ------------------------------ STATICS ------------------------------
  41
  42 function associate (models) {
  43   this.belongsTo(models.Video, {
  44     foreignKey: {
  45       name: 'videoId',
  46       allowNull: false
  47     },
  48     onDelete: 'CASCADE'
  49   })
  50
  51   this.belongsTo(models.User, {
  52     foreignKey: {
  53       name: 'userId',
  54       allowNull: false
  55     },
  56     onDelete: 'CASCADE'
  57   })
  58 }
  59
  60 function load (userId, videoId, transaction, callback) {
  61   if (!callback) {
  62     callback = transaction
  63     transaction = null
  64   }
  65
  66   const query = {
  67     where: {
  68       userId,
  69       videoId
  70     }
  71   }
  72
  73   const options = {}
  74   if (transaction) options.transaction = transaction
  75
  76   return this.findOne(query, options).asCallback(callback)
  77 }