Sequelize i18n

Easy internalization using Sequelize >= v5

Usage

Model definition

As usual, define your models using Sequelize. Simply set the i18n property to true to enable internationalized fields:

const product = (sequelize, DataTypes) =>
  sequelize.define('product', {
    id: {
      type: DataTypes.BIGINT,
      primaryKey: true,
      autoIncrement: true,
    },
    name: {
      type: DataTypes.STRING,
      i18n: true,
    },
    reference: {
      type: DataTypes.STRING,
    },
  }, {});

export default function(sequelize) {
  return sequelize.import('product', product);
}

Initialisation

Just set the Sequelize i18n module before importing models:

import Sequelize from 'sequelize';
import SequelizeI18N from 'sequelize-i18n';

const languages = {
  list: ['EN', 'FR', 'ES'],
  default: 'FR',
};
const sequelize = new Sequelize('db_name', 'user', 'password');
const i18n = new SequelizeI18N(sequelize, {
  languages: languages.list,
  defaultLanguage: languages.default,
});

i18n.init();

const ProductModel = sequelize.import('product', product)

Options

• languages: list of allowed languages IDs.
• defaultLanguage: default language ID.
• i18nDefaultScope: add i18n to the default model scope.
• addI18NScope: add i18n scope to model.
• injectI18NScope: inject i18n to model scopes.
• defaultLanguageFallback: fallback to default language if we can't find a value for the given language.

How it works

Sequelize i18n will check for i18n property in your model. If i18n is enabled, it will create a new table in which property's internationalized values will be stored.

Starting from the above example Product.

{
  name: {
    type: DataTypes.STRING,
    i18n: true,
  },
}

A product_i18n model will be created, with the following columns:

• id: the unique row identifier (INTEGER).
• language_id: identifies the current translation language (INTEGER or STRING).
• parent_id: the targeted product id (same as the model primary or unique key).
• name: the i18n value (same as Product.name.type).

The name property type is set to VIRTUAL.

Sequelize i18n will set hooks into models on create, find, update, and delete operations.

Creation

ProductModel
  .create({
    id: 1,
    name: 'test',
    reference: 'xxx',
  })
  .then((result) => {
    // [{ name: 'test', lang: 'FR' }]
    console.info(result.product_i18n);
  });

Update

productInstance
  .update({ name: 'New Name' })
  .then((result) => {
    // ...
  });

productInstance
  .update({ name: 'New Name' }, { language_id: 'EN' })
  .then((result) => {
    // ...
  });

Development environment

To use the included dev env, install Docker and start env with:

res/bin/runcontainer

Known Issues

Npm build script fails on Docker, see npm/npm#17346 for more details.

License

The MIT License (MIT)

Copyright (c) 2018 Nicolas Cava

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.