Sequelize cli with ES6

.babelrc

{
    "presets": ["es2015"],
    "plugins": [
        "add-module-exports"
    ],
}

.sequelizerc

const path = require('path');

module.exports = {
  'config': path.resolve('migrations/config/babelHook.js'),
  'migrations-path': path.resolve('migrations'),
  'seeders-path': path.resolve('migrations/seeders'),
  'models-path': path.resolve('migrations/models')
};

babelHook.js

// migrations/config/babelHook.js

require('babel-core/register');

module.exports = require('./config');

config.js

// migrations/config/config.js
import config from 'my/app/config';

const env = process.env.NODE_ENV || 'development';

export default {
  [env]: {
        url: config.mysql.migrate,
        dialect: 'mysql',
        migrationStorageTableName: 'SequelizeMeta'
      }
};

how-to-use.md

npm run sequelize db:migrate:all

model.js

// migrations/models/model.js
import sequelize from 'sequelize';

const model = sequelize.define('foo', {
  createdAt: {
      type: this.sequelize.DATE,
      allowNull: false,
  },
  updatedAt: {
      type: this.sequelize.DATE,
      allowNull: true,
  },
});

export default model;

package.json

{
  "name": "seqelize-with-es6",
  "description": "Example of sequelize cli running with es6 models",
  "version": "0.0.1",
  "main": "index.js",
  "contributors": [],
  "scripts": {
    "sequelize": "sequelize $*"
  },
  "dependencies": {
    "sequelize": "^3.30.4"
  },
  "devDependencies": {
    "babel-core": "^6.24.0",
    "babel-plugin-add-module-exports": "^0.2.1",
    "babel-preset-es2015": "^6.24.0",
    "sequelize-cli": "^2.7.0"
  }
}

Hi Andrew,
Thanks for your good approach adding those files. I have been following your steps, but in the config.js in the line
import config from 'my/app/config';
i don not know what should i import here. Can you share it with me please, i´ll appreciate your time. Thank you.

@clenondavis The import is likely a small raw config.json that means little.
You can as well, and preferably personally, define everything in the config.js.

BTW it works like magic and I can't yet understand how it works, this is the first real method that lets me do migrations in ES6, great job!

Thanks for it!

can't seem to get the dialect to work, I'm getting this:

RROR: Dialect undefined does not support db:create / db:drop commands

Note: the "undefined".

My config.js for the babelHook.js looks like:

// migrations/config/config.js
import config from '../../config/config.json';
const env = process.env.NODE_ENV || 'development';

export default {
  [env]: {
    dialect: config[env]['dialect'],
    username: config[env]['username'],
    password: config[env]['password'],
    host: config[env]['host'],
    migrationStorageTableName: 'SequelizeMeta'
  }
};

Running it, such as...

$ npm run sequelize db:drop

> @2.10.0 sequelize /Users/gary/Development/digsup/DigsUp
> sequelize $* "db:drop"


Sequelize CLI [Node: 9.8.0, CLI: 4.0.0, ORM: 4.37.8]

Loaded configuration file "migrations/config/babelHook.js".

ERROR: Dialect undefined does not support db:create / db:drop commands

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! @2.10.0 sequelize: `sequelize $* "db:drop"`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the @2.10.0 sequelize script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/gary/.npm/_logs/2018-05-23T21_38_39_285Z-debug.log

Any help appreciated.

Resolved. The issue was actually that I needed to pass the environment variable through to babel.
I used cross-env, so this solved it by adding it to my package.json.

"sequelize": "cross-env NODE_ENV=local sequelize $*",

this doesn't actually work for me with import and export statements. i'm trying the following:

• running ./node_modules/.bin/sequelize via ./node_modules/.bin/babel-node
• requiring babel-core/register in my sequelize config.js
• using cross-env (didn't help)

relevant npm run commands:

    "sequelize": "NODE_ENV=development ./node_modules/.bin/babel-node ./node_modules/.bin/sequelize --config config/sequelize-cli.js",
    "db:migrate": "npm run sequelize db:migrate",
    "db:seed": "npm run sequelize db:seed:all",

my sequelize config:

require('babel-core/register');

const path = require('path');
const conf = require(path.resolve('.', 'config'));

const env = conf.get('NODE_ENV');

console.log(`env=${env}, db config=`);
console.log(conf.get('db'));

module.exports = { [env]: conf.get('db') };

the tests:

$ NODE_ENV=test ./node_modules/.bin/babel-node  ./node_modules/.bin/sequelize --config config/sequelize-cli.js db:seed:all

Sequelize CLI [Node: 8.11.1, CLI: 4.0.0, ORM: 4.38.0]

env=test, db config=
{ dialect: 'postgres',
  database: 'appraise',
  port: 5432,
  migrationStorageTableName: 'SequelizeMeta',
  operatorsAliases: false,
  define: { underscored: true },
  logging: true,
  pool: { max: 5, min: 0, acquire: 30000, idle: 10000 },
  query: { pool: true, debug: true },
  debug: true,
  host: 'localhost' }
Loaded configuration file "config/sequelize-cli.js".
Using environment "test".
Executing (default): SELECT 1+1 AS result
== 20180910163130-demo-user: migrating =======

ERROR: Unexpected token export

$ NODE_ENV=test ./node_modules/.bin/babel-node  ./node_modules/.bin/sequelize --config config/sequelize-cli.js db:migrate

Sequelize CLI [Node: 8.11.1, CLI: 4.0.0, ORM: 4.38.0]

env=test, db config=
{ dialect: 'postgres',
  database: 'appraise',
  port: 5432,
  migrationStorageTableName: 'SequelizeMeta',
  operatorsAliases: false,
  define: { underscored: true },
  logging: true,
  pool: { max: 5, min: 0, acquire: 30000, idle: 10000 },
  query: { pool: true, debug: true },
  debug: true,
  host: 'localhost' }
Loaded configuration file "config/sequelize-cli.js".
Using environment "test".
Executing (default): SELECT 1+1 AS result
Executing (default): SELECT table_name FROM information_schema.tables WHERE table_schema = 'public' AND table_type LIKE '%TABLE' AND table_name != 'spatial_ref_sys';
Executing (default): SELECT pk.constraint_type as "Constraint", c.column_name as "Field", c.column_default as "Default", c.is_nullable as "Null", (CASE WHEN c.udt_name = 'hstore' THEN c.udt_name ELSE c.data_type END) || (CASE WHEN c.character_maximum_length IS NOT NULL THEN '(' || c.character_maximum_length || ')' ELSE '' END) as "Type", (SELECT array_agg(e.enumlabel) FROM pg_catalog.pg_type t JOIN pg_catalog.pg_enum e ON t.oid=e.enumtypid WHERE t.typname=c.udt_name) AS "special" FROM information_schema.columns c LEFT JOIN (SELECT tc.table_schema, tc.table_name, cu.column_name, tc.constraint_type FROM information_schema.TABLE_CONSTRAINTS tc JOIN information_schema.KEY_COLUMN_USAGE  cu ON tc.table_schema=cu.table_schema and tc.table_name=cu.table_name and tc.constraint_name=cu.constraint_name and tc.constraint_type='PRIMARY KEY') pk ON pk.table_schema=c.table_schema AND pk.table_name=c.table_name AND pk.column_name=c.column_name WHERE c.table_name = 'SequelizeMeta' AND c.table_schema = 'public'
File: .DS_Store does not match pattern: /\.js$/
Executing (default): CREATE TABLE IF NOT EXISTS "SequelizeMeta" ("name" VARCHAR(255) NOT NULL UNIQUE , PRIMARY KEY ("name"));
Executing (default): SELECT i.relname AS name, ix.indisprimary AS primary, ix.indisunique AS unique, ix.indkey AS indkey, array_agg(a.attnum) as column_indexes, array_agg(a.attname) AS column_names, pg_get_indexdef(ix.indexrelid) AS definition FROM pg_class t, pg_class i, pg_index ix, pg_attribute a WHERE t.oid = ix.indrelid AND i.oid = ix.indexrelid AND a.attrelid = t.oid AND t.relkind = 'r' and t.relname = 'SequelizeMeta' GROUP BY i.relname, ix.indexrelid, ix.indisprimary, ix.indisunique, ix.indkey ORDER BY i.relname;
Executing (default): SELECT "name" FROM "SequelizeMeta" AS "SequelizeMeta" ORDER BY "SequelizeMeta"."name" ASC;
No migrations were executed, database schema was already up to date.

$ NODE_ENV=test   ./node_modules/.bin/sequelize --config config/sequelize-cli.js db:migrate

Sequelize CLI [Node: 8.11.1, CLI: 4.0.0, ORM: 4.38.0]

env=test, db config=
{ dialect: 'postgres',
  database: 'appraise',
  port: 5432,
  migrationStorageTableName: 'SequelizeMeta',
  operatorsAliases: false,
  define: { underscored: true },
  logging: true,
  pool: { max: 5, min: 0, acquire: 30000, idle: 10000 },
  query: { pool: true, debug: true },
  debug: true,
  host: 'localhost' }
Loaded configuration file "config/sequelize-cli.js".
Using environment "test".
Executing (default): SELECT 1+1 AS result
Executing (default): SELECT table_name FROM information_schema.tables WHERE table_schema = 'public' AND table_type LIKE '%TABLE' AND table_name != 'spatial_ref_sys';
Executing (default): SELECT pk.constraint_type as "Constraint", c.column_name as "Field", c.column_default as "Default", c.is_nullable as "Null", (CASE WHEN c.udt_name = 'hstore' THEN c.udt_name ELSE c.data_type END) || (CASE WHEN c.character_maximum_length IS NOT NULL THEN '(' || c.character_maximum_length || ')' ELSE '' END) as "Type", (SELECT array_agg(e.enumlabel) FROM pg_catalog.pg_type t JOIN pg_catalog.pg_enum e ON t.oid=e.enumtypid WHERE t.typname=c.udt_name) AS "special" FROM information_schema.columns c LEFT JOIN (SELECT tc.table_schema, tc.table_name, cu.column_name, tc.constraint_type FROM information_schema.TABLE_CONSTRAINTS tc JOIN information_schema.KEY_COLUMN_USAGE  cu ON tc.table_schema=cu.table_schema and tc.table_name=cu.table_name and tc.constraint_name=cu.constraint_name and tc.constraint_type='PRIMARY KEY') pk ON pk.table_schema=c.table_schema AND pk.table_name=c.table_name AND pk.column_name=c.column_name WHERE c.table_name = 'SequelizeMeta' AND c.table_schema = 'public'
File: .DS_Store does not match pattern: /\.js$/
Executing (default): CREATE TABLE IF NOT EXISTS "SequelizeMeta" ("name" VARCHAR(255) NOT NULL UNIQUE , PRIMARY KEY ("name"));
Executing (default): SELECT i.relname AS name, ix.indisprimary AS primary, ix.indisunique AS unique, ix.indkey AS indkey, array_agg(a.attnum) as column_indexes, array_agg(a.attname) AS column_names, pg_get_indexdef(ix.indexrelid) AS definition FROM pg_class t, pg_class i, pg_index ix, pg_attribute a WHERE t.oid = ix.indrelid AND i.oid = ix.indexrelid AND a.attrelid = t.oid AND t.relkind = 'r' and t.relname = 'SequelizeMeta' GROUP BY i.relname, ix.indexrelid, ix.indisprimary, ix.indisunique, ix.indkey ORDER BY i.relname;
Executing (default): SELECT "name" FROM "SequelizeMeta" AS "SequelizeMeta" ORDER BY "SequelizeMeta"."name" ASC;
No migrations were executed, database schema was already up to date.


$ NODE_ENV=test   ./node_modules/.bin/sequelize --config config/sequelize-cli.js db:seed:all

Sequelize CLI [Node: 8.11.1, CLI: 4.0.0, ORM: 4.38.0]

env=test, db config=
{ dialect: 'postgres',
  database: 'appraise',
  port: 5432,
  migrationStorageTableName: 'SequelizeMeta',
  operatorsAliases: false,
  define: { underscored: true },
  logging: true,
  pool: { max: 5, min: 0, acquire: 30000, idle: 10000 },
  query: { pool: true, debug: true },
  debug: true,
  host: 'localhost' }
Loaded configuration file "config/sequelize-cli.js".
Using environment "test".
Executing (default): SELECT 1+1 AS result
== 20180910163130-demo-user: migrating =======

ERROR: Unexpected token export

once the first import or export statements gets processed they all fail with something like the above.

Experiencing the same issue after requiring @babe/core in my package.json

Here's the error output:

Loaded configuration file "server/config/babelHook.js".
Using environment "development".
sequelize deprecated String based operators are now deprecated. Please use Symbol based operators for better security, read more at http://docs.sequelizejs.com/manual/tutorial/querying.html#operators node_modules/sequelize/lib/sequelize.js:242:13
== 20190218092918-create-menu: migrating =======

ERROR: Unexpected token export

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! indulgent-treats@1.0.0 sequelize: `sequelize $* "db:migrate"`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the indulgent-treats@1.0.0 sequelize script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/techcellent/.npm/_logs/2019-02-18T13_50_12_190Z-debug.log

and here's my package.json file:

"name": ".....",
  "version": "1.0.0",
  "description": "....",
  "main": "index.js",
  "sequelize": {
    "require": [
      "@babel/register"
    ]
  },
  "scripts": {
    "start": "nodemon --exec babel-node index.js",
    "test": "cross-env NODE_ENV=test nyc --reporter=lcov --reporter=text-lcov ./node_modules/.bin/mocha --exit --timeout 10000 --reporter spec --compilers js:@babel/register ./test/*.js",
    "coveralls": "nyc npm test && nyc report --reporter=text-lcov | coveralls",
    "sequelize": "sequelize $*"
  },
.......

No example of a migration

Needs Typescript definitions

EcmaScript in migrations worked for me only with this file (and installing the packages in it)
https://gist.github.com/YavorK/816041feed5113986cfeb8fc304eb5df