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'use strict'
// external modules
const fs = require('fs')
const path = require('path')
const Sequelize = require('sequelize')
const { cloneDeep } = require('lodash')
const Umzug = require('umzug')
// core
const config = require('../config')
const logger = require('../logger')
const dbconfig = cloneDeep(config.db)
dbconfig.logging = config.debug
? (data) => {
logger.info(data)
}
: false
let sequelize = null
// Heroku specific
if (config.dbURL) {
sequelize = new Sequelize(config.dbURL, dbconfig)
} else {
sequelize = new Sequelize(dbconfig.database, dbconfig.username, dbconfig.password, dbconfig)
}
// [Postgres] Handling NULL bytes
// https://github.com/sequelize/sequelize/issues/6485
function stripNullByte (value) {
value = '' + value
// eslint-disable-next-line no-control-regex
return value ? value.replace(/\u0000/g, '') : value
}
sequelize.stripNullByte = stripNullByte
function processData (data, _default, process) {
if (data === undefined) return data
else return data === null ? _default : (process ? process(data) : data)
}
sequelize.processData = processData
const db = {}
fs.readdirSync(__dirname)
.filter(function (file) {
return (file.indexOf('.') !== 0) && (file !== 'index.js')
})
.forEach(function (file) {
const model = sequelize.import(path.join(__dirname, file))
db[model.name] = model
})
Object.keys(db).forEach(function (modelName) {
if ('associate' in db[modelName]) {
db[modelName].associate(db)
}
})
const umzug = new Umzug({
migrations: {
path: path.resolve(__dirname, '..', 'migrations'),
params: [
sequelize.getQueryInterface(),
Sequelize.DataTypes
]
},
// Required wrapper function required to prevent winstion issue
// https://github.com/winstonjs/winston/issues/1577
logging: message => {
logger.info(message)
},
storage: 'sequelize',
storageOptions: {
sequelize: sequelize
}
})
db.runMigrations = async function runMigrations () {
// checks migrations and run them if they are not already applied
// exit in case of unsuccessful migrations
await umzug.up().catch(error => {
logger.error(error)
logger.error('Database migration failed. Exiting…')
process.exit(1)
})
logger.info('All migrations performed successfully')
}
db.sequelize = sequelize
db.Sequelize = Sequelize
module.exports = db
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