loopback-datasource-juggler/test/include.test.js

418 lines
12 KiB
JavaScript

// This test written in mocha+should.js
var should = require('./init.js');
var db, User, AccessToken, Post, Passport, City, Street, Building, Assembly, Part;
describe('include', function () {
before(setup);
it('should fetch belongsTo relation', function (done) {
Passport.find({include: 'owner'}, function (err, passports) {
passports.length.should.be.ok;
passports.forEach(function (p) {
p.__cachedRelations.should.have.property('owner');
// The relation should be promoted as the 'owner' property
p.should.have.property('owner');
// The __cachedRelations should be removed from json output
p.toJSON().should.not.have.property('__cachedRelations');
var owner = p.__cachedRelations.owner;
if (!p.ownerId) {
should.not.exist(owner);
} else {
should.exist(owner);
owner.id.should.equal(p.ownerId);
}
});
done();
});
});
it('should fetch hasMany relation', function (done) {
User.find({include: 'posts'}, function (err, users) {
should.not.exist(err);
should.exist(users);
users.length.should.be.ok;
users.forEach(function (u) {
// The relation should be promoted as the 'owner' property
u.should.have.property('posts');
// The __cachedRelations should be removed from json output
u.toJSON().should.not.have.property('__cachedRelations');
u.__cachedRelations.should.have.property('posts');
u.__cachedRelations.posts.forEach(function (p) {
p.userId.should.equal(u.id);
});
});
done();
});
});
it('should fetch Passport - Owner - Posts', function (done) {
Passport.find({include: {owner: 'posts'}}, function (err, passports) {
should.not.exist(err);
should.exist(passports);
passports.length.should.be.ok;
passports.forEach(function (p) {
p.__cachedRelations.should.have.property('owner');
// The relation should be promoted as the 'owner' property
p.should.have.property('owner');
// The __cachedRelations should be removed from json output
p.toJSON().should.not.have.property('__cachedRelations');
var user = p.__cachedRelations.owner;
if (!p.ownerId) {
should.not.exist(user);
} else {
should.exist(user);
user.id.should.equal(p.ownerId);
user.__cachedRelations.should.have.property('posts');
user.should.have.property('posts');
user.__cachedRelations.posts.forEach(function (pp) {
pp.userId.should.equal(user.id);
});
}
});
done();
});
});
it('should fetch Passport - Owner - Posts - alternate syntax', function (done) {
Passport.find({include: {owner: {relation: 'posts'}}}, function (err, passports) {
should.not.exist(err);
should.exist(passports);
passports.length.should.be.ok;
var posts = passports[0].owner().posts();
posts.should.have.length(3);
done();
});
});
it('should fetch Passports - User - Posts - User', function (done) {
Passport.find({
include: {owner: {posts: 'author'}}
}, function (err, passports) {
should.not.exist(err);
should.exist(passports);
passports.length.should.be.ok;
passports.forEach(function (p) {
p.__cachedRelations.should.have.property('owner');
var user = p.__cachedRelations.owner;
if (!p.ownerId) {
should.not.exist(user);
} else {
should.exist(user);
user.id.should.equal(p.ownerId);
user.__cachedRelations.should.have.property('posts');
user.__cachedRelations.posts.forEach(function (pp) {
pp.should.have.property('id');
pp.userId.should.equal(user.id);
pp.should.have.property('author');
pp.__cachedRelations.should.have.property('author');
var author = pp.__cachedRelations.author;
author.id.should.equal(user.id);
});
}
});
done();
});
});
it('should fetch Passports with include scope on Posts', function (done) {
Passport.find({
include: {owner: {relation: 'posts', scope:{
fields: ['title'], include: ['author'],
order: 'title DESC'
}}}
}, function (err, passports) {
should.not.exist(err);
should.exist(passports);
passports.length.should.equal(3);
var passport = passports[0];
passport.number.should.equal('1');
passport.owner().name.should.equal('User A');
var owner = passport.owner().toObject();
var posts = passport.owner().posts();
posts.should.be.an.array;
posts.should.have.length(3);
posts[0].title.should.equal('Post C');
posts[0].should.not.have.property('id'); // omitted
posts[0].author().should.be.instanceOf(User);
posts[0].author().name.should.equal('User A');
posts[1].title.should.equal('Post B');
posts[1].author().name.should.equal('User A');
posts[2].title.should.equal('Post A');
posts[2].author().name.should.equal('User A');
done();
});
});
it('should fetch Users with include scope on Posts', function (done) {
User.find({
include: {relation: 'posts', scope:{
order: 'title DESC'
}}
}, function (err, users) {
should.not.exist(err);
should.exist(users);
users.length.should.equal(5);
users[0].name.should.equal('User A');
users[1].name.should.equal('User B');
var posts = users[0].posts();
posts.should.be.an.array;
posts.should.have.length(3);
posts[0].title.should.equal('Post C');
posts[1].title.should.equal('Post B');
posts[2].title.should.equal('Post A');
var posts = users[1].posts();
posts.should.be.an.array;
posts.should.have.length(1);
posts[0].title.should.equal('Post D');
done();
});
});
it('should fetch Users with include scope on Passports', function (done) {
User.find({
include: {relation: 'passports', scope:{
where: { number: '2' }
}}
}, function (err, users) {
should.not.exist(err);
should.exist(users);
users.length.should.equal(5);
users[0].name.should.equal('User A');
users[0].passports().should.be.empty;
users[1].name.should.equal('User B');
var passports = users[1].passports();
passports[0].number.should.equal('2');
done();
});
});
it('should fetch User - Posts AND Passports', function (done) {
User.find({include: ['posts', 'passports']}, function (err, users) {
should.not.exist(err);
should.exist(users);
users.length.should.be.ok;
users.forEach(function (user) {
// The relation should be promoted as the 'owner' property
user.should.have.property('posts');
user.should.have.property('passports');
var userObj = user.toJSON();
userObj.should.have.property('posts');
userObj.should.have.property('passports');
userObj.posts.should.be.an.instanceOf(Array);
userObj.passports.should.be.an.instanceOf(Array);
// The __cachedRelations should be removed from json output
userObj.should.not.have.property('__cachedRelations');
user.__cachedRelations.should.have.property('posts');
user.__cachedRelations.should.have.property('passports');
user.__cachedRelations.posts.forEach(function (p) {
p.userId.should.equal(user.id);
});
user.__cachedRelations.passports.forEach(function (pp) {
pp.ownerId.should.equal(user.id);
});
});
done();
});
});
it('should not fetch User - AccessTokens', function (done) {
User.find({include: ['accesstokens']}, function (err, users) {
should.not.exist(err);
should.exist(users);
users.length.should.be.ok;
users.forEach(function (user) {
var userObj = user.toJSON();
userObj.should.not.have.property('accesstokens');
});
done();
});
});
it('should support hasAndBelongsToMany', function (done) {
Assembly.destroyAll(function(err) {
Part.destroyAll(function(err) {
Assembly.relations.parts.modelThrough.destroyAll(function(err) {
Assembly.create({name: 'car'}, function (err, assembly) {
Part.create({partNumber: 'engine'}, function (err, part) {
assembly.parts.add(part, function (err, data) {
assembly.parts(function (err, parts) {
should.not.exist(err);
should.exists(parts);
parts.length.should.equal(1);
parts[0].partNumber.should.equal('engine');
// Create a part
assembly.parts.create({partNumber: 'door'}, function (err, part4) {
Assembly.find({include: 'parts'}, function (err, assemblies) {
assemblies.length.should.equal(1);
assemblies[0].parts.length.should.equal(2);
done();
});
});
});
});
});
});
});
});
});
});
});
function setup(done) {
db = getSchema();
City = db.define('City');
Street = db.define('Street');
Building = db.define('Building');
User = db.define('User', {
name: String,
age: Number
});
AccessToken = db.define('AccessToken', {
token: String
});
Passport = db.define('Passport', {
number: String
});
Post = db.define('Post', {
title: String
});
Passport.belongsTo('owner', {model: User});
User.hasMany('passports', {foreignKey: 'ownerId'});
User.hasMany('posts', {foreignKey: 'userId'});
User.hasMany('accesstokens', {
foreignKey: 'userId',
options: {disableInclude: true}
});
Post.belongsTo('author', {model: User, foreignKey: 'userId'});
Assembly = db.define('Assembly', {
name: String
});
Part = db.define('Part', {
partNumber: String
});
Assembly.hasAndBelongsToMany(Part);
Part.hasAndBelongsToMany(Assembly);
db.automigrate(function () {
var createdUsers = [];
var createdPassports = [];
var createdPosts = [];
createUsers();
function createUsers() {
clearAndCreate(
User,
[
{name: 'User A', age: 21},
{name: 'User B', age: 22},
{name: 'User C', age: 23},
{name: 'User D', age: 24},
{name: 'User E', age: 25}
],
function (items) {
createdUsers = items;
createPassports();
createAccessTokens();
}
);
}
function createAccessTokens() {
clearAndCreate(
AccessToken,
[
{token: '1', userId: createdUsers[0].id},
{token: '2', userId: createdUsers[1].id}
],
function (items) {}
);
}
function createPassports() {
clearAndCreate(
Passport,
[
{number: '1', ownerId: createdUsers[0].id},
{number: '2', ownerId: createdUsers[1].id},
{number: '3'}
],
function (items) {
createdPassports = items;
createPosts();
}
);
}
function createPosts() {
clearAndCreate(
Post,
[
{title: 'Post A', userId: createdUsers[0].id},
{title: 'Post B', userId: createdUsers[0].id},
{title: 'Post C', userId: createdUsers[0].id},
{title: 'Post D', userId: createdUsers[1].id},
{title: 'Post E'}
],
function (items) {
createdPosts = items;
done();
}
);
}
});
}
function clearAndCreate(model, data, callback) {
var createdItems = [];
model.destroyAll(function () {
nextItem(null, null);
});
var itemIndex = 0;
function nextItem(err, lastItem) {
if (lastItem !== null) {
createdItems.push(lastItem);
}
if (itemIndex >= data.length) {
callback(createdItems);
return;
}
model.create(data[itemIndex], nextItem);
itemIndex++;
}
}