groupedLimit.test.js
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'use strict';
const chai = require('chai'),
sinon = require('sinon'),
expect = chai.expect,
Support = require('../../support'),
Sequelize = Support.Sequelize,
Promise = Sequelize.Promise,
DataTypes = require('../../../../lib/data-types'),
current = Support.sequelize,
_ = require('lodash');
if (current.dialect.supports['UNION ALL']) {
describe(Support.getTestDialectTeaser('Model'), () => {
describe('findAll', () => {
describe('groupedLimit', () => {
before(function() {
this.clock = sinon.useFakeTimers();
});
afterEach(function() {
this.clock.reset();
});
after(function() {
this.clock.restore();
});
beforeEach(function() {
this.User = this.sequelize.define('user', {
age: Sequelize.INTEGER
});
this.Project = this.sequelize.define('project', {
title: DataTypes.STRING
});
this.Task = this.sequelize.define('task');
this.ProjectUserParanoid = this.sequelize.define('project_user_paranoid', {}, {
timestamps: true,
paranoid: true,
createdAt: false,
updatedAt: false
});
this.User.Projects = this.User.belongsToMany(this.Project, { through: 'project_user' });
this.Project.belongsToMany(this.User, { as: 'members', through: 'project_user' });
this.User.ParanoidProjects = this.User.belongsToMany(this.Project, { through: this.ProjectUserParanoid });
this.Project.belongsToMany(this.User, { as: 'paranoidMembers', through: this.ProjectUserParanoid });
this.User.Tasks = this.User.hasMany(this.Task);
return this.sequelize.sync({ force: true }).then(() => {
return Promise.join(
this.User.bulkCreate([{ age: -5 }, { age: 45 }, { age: 7 }, { age: -9 }, { age: 8 }, { age: 15 }, { age: -9 }]),
this.Project.bulkCreate([{}, {}]),
this.Task.bulkCreate([{}, {}])
);
})
.then(() => Promise.all([this.User.findAll(), this.Project.findAll(), this.Task.findAll()]))
.then(([users, projects, tasks]) => {
this.projects = projects;
return Promise.join(
projects[0].setMembers(users.slice(0, 4)),
projects[1].setMembers(users.slice(2)),
projects[0].setParanoidMembers(users.slice(0, 4)),
projects[1].setParanoidMembers(users.slice(2)),
users[2].setTasks(tasks)
);
});
});
describe('on: belongsToMany', () => {
it('maps attributes from a grouped limit to models', function() {
return this.User.findAll({
groupedLimit: {
limit: 3,
on: this.User.Projects,
values: this.projects.map(item => item.get('id'))
}
}).then(users => {
expect(users).to.have.length(5);
users.filter(u => u.get('id') !== 3).forEach(u => {
expect(u.get('projects')).to.have.length(1);
});
users.filter(u => u.get('id') === 3).forEach(u => {
expect(u.get('projects')).to.have.length(2);
});
});
});
it('maps attributes from a grouped limit to models with include', function() {
return this.User.findAll({
groupedLimit: {
limit: 3,
on: this.User.Projects,
values: this.projects.map(item => item.get('id'))
},
order: ['id'],
include: [this.User.Tasks]
}).then(users => {
/*
project1 - 1, 2, 3
project2 - 3, 4, 5
*/
expect(users).to.have.length(5);
expect(users.map(u => u.get('id'))).to.deep.equal([1, 2, 3, 4, 5]);
expect(users[2].get('tasks')).to.have.length(2);
users.filter(u => u.get('id') !== 3).forEach(u => {
expect(u.get('projects')).to.have.length(1);
});
users.filter(u => u.get('id') === 3).forEach(u => {
expect(u.get('projects')).to.have.length(2);
});
});
});
it('works with computed order', function() {
return this.User.findAll({
attributes: ['id'],
groupedLimit: {
limit: 3,
on: this.User.Projects,
values: this.projects.map(item => item.get('id'))
},
order: [
Sequelize.fn('ABS', Sequelize.col('age'))
],
include: [this.User.Tasks]
}).then(users => {
/*
project1 - 1, 3, 4
project2 - 3, 5, 4
*/
expect(users).to.have.length(4);
expect(users.map(u => u.get('id'))).to.deep.equal([1, 3, 5, 4]);
});
});
it('works with multiple orders', function() {
return this.User.findAll({
attributes: ['id'],
groupedLimit: {
limit: 3,
on: this.User.Projects,
values: this.projects.map(item => item.get('id'))
},
order: [
Sequelize.fn('ABS', Sequelize.col('age')),
['id', 'DESC']
],
include: [this.User.Tasks]
}).then(users => {
/*
project1 - 1, 3, 4
project2 - 3, 5, 7
*/
expect(users).to.have.length(5);
expect(users.map(u => u.get('id'))).to.deep.equal([1, 3, 5, 7, 4]);
});
});
it('works with paranoid junction models', function() {
return this.User.findAll({
attributes: ['id'],
groupedLimit: {
limit: 3,
on: this.User.ParanoidProjects,
values: this.projects.map(item => item.get('id'))
},
order: [
Sequelize.fn('ABS', Sequelize.col('age')),
['id', 'DESC']
],
include: [this.User.Tasks]
}).then(users => {
/*
project1 - 1, 3, 4
project2 - 3, 5, 7
*/
expect(users).to.have.length(5);
expect(users.map(u => u.get('id'))).to.deep.equal([1, 3, 5, 7, 4]);
return Sequelize.Promise.join(
this.projects[0].setParanoidMembers(users.slice(0, 2)),
this.projects[1].setParanoidMembers(users.slice(4))
);
}).then(() => {
return this.User.findAll({
attributes: ['id'],
groupedLimit: {
limit: 3,
on: this.User.ParanoidProjects,
values: this.projects.map(item => item.get('id'))
},
order: [
Sequelize.fn('ABS', Sequelize.col('age')),
['id', 'DESC']
],
include: [this.User.Tasks]
});
}).then(users => {
/*
project1 - 1, 3
project2 - 4
*/
expect(users).to.have.length(3);
expect(users.map(u => u.get('id'))).to.deep.equal([1, 3, 4]);
});
});
});
describe('on: hasMany', () => {
beforeEach(function() {
this.User = this.sequelize.define('user');
this.Task = this.sequelize.define('task');
this.User.Tasks = this.User.hasMany(this.Task);
return this.sequelize.sync({ force: true }).then(() => {
return Promise.join(
this.User.bulkCreate([{}, {}, {}]),
this.Task.bulkCreate([{ id: 1 }, { id: 2 }, { id: 3 }, { id: 4 }, { id: 5 }, { id: 6 }])
);
})
.then(() => Promise.all([this.User.findAll(), this.Task.findAll()]))
.then(([users, tasks]) => {
this.users = users;
return Promise.join(
users[0].setTasks(tasks[0]),
users[1].setTasks(tasks.slice(1, 4)),
users[2].setTasks(tasks.slice(4))
);
});
});
it('Applies limit and order correctly', function() {
return this.Task.findAll({
order: [
['id', 'DESC']
],
groupedLimit: {
limit: 3,
on: this.User.Tasks,
values: this.users.map(item => item.get('id'))
}
}).then(tasks => {
const byUser = _.groupBy(tasks, _.property('userId'));
expect(Object.keys(byUser)).to.have.length(3);
expect(byUser[1]).to.have.length(1);
expect(byUser[2]).to.have.length(3);
expect(_.invokeMap(byUser[2], 'get', 'id')).to.deep.equal([4, 3, 2]);
expect(byUser[3]).to.have.length(2);
});
});
});
});
});
});
}