57 lines
1.7 KiB
JavaScript
57 lines
1.7 KiB
JavaScript
'use strict'
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const eachSeries = require('async/eachSeries')
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const mongoose = require('mongoose')
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const path = require('path')
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const constants = require('./constants')
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const logger = require('../helpers/logger')
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const Application = mongoose.model('Application')
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const migrator = {
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migrate: migrate
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}
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function migrate (callback) {
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Application.loadMongoSchemaVersion(function (err, actualVersion) {
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if (err) return callback(err)
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// If there are a new mongo schemas
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if (!actualVersion || actualVersion < constants.LAST_MONGO_SCHEMA_VERSION) {
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logger.info('Begin migrations.')
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eachSeries(constants.MONGO_MIGRATION_SCRIPTS, function (entity, callbackEach) {
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const versionScript = entity.version
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// Do not execute old migration scripts
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if (versionScript <= actualVersion) return callbackEach(null)
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// Load the migration module and run it
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const migrationScriptName = entity.script
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logger.info('Executing %s migration script.', migrationScriptName)
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const migrationScript = require(path.join(__dirname, 'migrations', migrationScriptName))
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migrationScript.up(function (err) {
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if (err) return callbackEach(err)
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// Update the new mongo version schema
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Application.updateMongoSchemaVersion(versionScript, callbackEach)
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})
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}, function (err) {
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if (err) return callback(err)
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logger.info('Migrations finished. New mongo version schema: %s', constants.LAST_MONGO_SCHEMA_VERSION)
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return callback(null)
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})
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} else {
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return callback(null)
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}
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})
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}
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// ---------------------------------------------------------------------------
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module.exports = migrator
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