apemandb/lib/create.js

Database for apeman project.

/**
 * Create an apemandb instance.
 * @function create
 * @param {object} config
 * @param {object} config.env - Env variables.
 * @param {string|string[]} config.models
 * @param {string|string[]} config.hooks
 * @param {string|string[]} config.models
 * @param {string|string[]} config.addons
 * @param [object} options - Optional setting.
 */

'use strict'

const Apemandb = require('./apemandb')
const { camelcase } = require('stringcase')
const modelsFromFiles = require('./modeling/from_files')
const seedsFromFiles = require('./seeding/from_files')
const hooksFromFiles = require('./hooking/from_files')
const addonsFromFiles = require('./adding/from_files')

const debug = require('debug')('apeman:db')

/** @lends create */
function create (config) {
  let { env } = config
  let db = _newDb(env)
  let { modelSearchPath } = config
  Object.assign(db, { modelSearchPath })
  let models = modelsFromFiles(db, config.models || [])
  let seeds = seedsFromFiles(models, config.seeds || [])
  let hooks = hooksFromFiles(models, config.hooks || [])
  let addons = addonsFromFiles(models, config.addons || [])
  debug(`models: ${Object.keys(models)}`)
  return Object.assign(db, {
    env, models, seeds, hooks, addons, config
  })
}

function _newDb (env) {
  let options = _formatKeys(env || {})
  let database = options.database || options.schema
  let username = options.username || options.user
  let password = options.password
  delete options.database
  delete options.schema
  delete options.username
  delete options.user
  delete options.password
  return new Apemandb(database, username, password, options)
}

function _formatKeys (obj) {
  let result = {}
  Object.keys(obj).forEach((key) => {
    let lowerKey = camelcase(key.toLowerCase())
    result[ lowerKey ] = obj[ lowerKey ] || obj[ key ]
  })
  return result
}

module.exports = create