server/models/application.js

   1 const mongoose = require('mongoose')
   2
   3 // ---------------------------------------------------------------------------
   4
   5 const ApplicationSchema = mongoose.Schema({
   6   mongoSchemaVersion: {
   7     type: Number,
   8     default: 0
   9   }
  10 })
  11
  12 ApplicationSchema.statics = {
  13   loadMongoSchemaVersion,
  14   updateMongoSchemaVersion
  15 }
  16
  17 mongoose.model('Application', ApplicationSchema)
  18
  19 // ---------------------------------------------------------------------------
  20
  21 function loadMongoSchemaVersion (callback) {
  22   return this.findOne({}, { mongoSchemaVersion: 1 }, function (err, data) {
  23     const version = data ? data.mongoSchemaVersion : 0
  24
  25     return callback(err, version)
  26   })
  27 }
  28
  29 function updateMongoSchemaVersion (newVersion, callback) {
  30   return this.update({}, { mongoSchemaVersion: newVersion }, callback)
  31 }