mongoose-control

Migrations (pending) and seed/fixtures (already done) framework and cli for node (v16+) and mongoose (v7+).

This project is based in:

• node-mongoose-fixtures, by Kenneth Lee.
• node-mongodb-migrations by Ivan Alonso (neverbot) forked from ikatun/node-migrate by ikatun, in turn forked from tj/node-migrate by TJ Holowaychuk.

Both projects use the MIT license. Please check its authors files for more information. Both projects seem to be discontinued, so I decided to merge some of their features and create this new project.

Installation

npm i --save-dev mongoose-control to use from your repository.

npm i -g mongoose-control to use from the command line (see CLI usage).

Usage

import { fixtures } from 'mongoose-control';

await fixtures({
    <collection name>: [
      <record>,
      <record>
    ],
    <collection name>: [
      <record>,
      <record>
    ]
});

Example

import mongoose from 'mongoose';
import { fixtures } from 'mongoose-control';

// User
const userSchema = new mongoose.Schema({
    username: String,
    password: String
});
mongoose.model('Users', userSchema);

// Book
const bookSchema = new mongoose.Schema({
    title: String
});
mongoose.model('Books', bookSchema);

// Create dataset immediately
//   - data is an array of all the documents created
let data = await fixtures({
    Users: [
        { username: 'one', password: 'pass' },
        { username: 'two', password: 'pass' }
    ],
    Books: [
        { title: 'Enders Game' },
        { title: 'Speaker of the Dead' }
    ]
});

// Name a dataset for future use
fixtures.save('Users', {
    users: [
        { username: 'one', password: 'pass' },
        { username: 'two', password: 'pass' }
    ]
});

// Use the named dataset
//  - data is an array of all documents created
data = await fixtures('Users');

Using files for fixtures and/or seeds

Create files for the data, i.e. userFixtures.js:

import { ObjectId } from 'mongodb';

// you can have relations using the same ObjectIds in different collections
const userId1 = new ObjectId();
const bookId1 = new ObjectId();

const Users = [
  {
    _id: userId1,
    name: 'Awesome User 1',
    books: [bookId1],
    ...
  },
  {
    ...
  },
];

const Books = [
  {
    _id: bookId1,
    title: 'Awesome Book 1',
    ...
  },
  {
    ...
  },
];

export default {
  Users,
  Books,
};

Now you can use your fixtures in your tests or any other place:

import { fixtures } from 'mongoose-control';
import fixturesData from 'userFixtures.js';

await fixtures(fixturesData);

Remember Mongoose have to be initialized before using fixtures(), and the models we are going to use have to be registered in Mongoose.

CLI

You can use some of the features of this package from the command line:

# install the package globally:
npm i -g mongoose-control

# to see the available options:
mongoose-control --help

# use as seeder, with a seed file (you can use the test files):
mongoose-control --url mongodb://localhost:27017/testing --models test/models/ seed test/example.data.js

API

Create a dataset

async fixtures(dataset, <mongoose instance>);

Immediately creates the documents from the dataset through the mongoose connection. Returns a flat array with every inserted fixture.

• dataset can be a hash or a name of a named fixture.
• mongoose instance is optional and is a singular instance of mongoose.

Save a named fixture

fixtures.save(name, dataset);

Save a fixture to be used for later. Returns previous existent fixture with the same name, if it existed.

• name is the name of your new named fixture.
• dataset is the hash of the dataset you want to save.

Retrieve a named fixture's dataset

fixtures.get(name);

Retrieves a named fixture's dataset.

• name is the name of the named fixture you wish to retrieve.

Clear named fixture

fixtures.clear(<name>);

Clears named fixtures.

• name is optional. It's the name of the named fixture. If omitted, all named fixtures will be cleared.

Reset database collection(s)

async fixtures.reset(<model name>, <mongoose instance>);

Deletes all documents within a collection. Returns the result of the delete operations.

• model name is optional. It's the name of the collection. If omitted, all collections will be purged.
• mongoose instance is optional and is a singular instance of mongoose.