associations.test.js
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'use strict';
/* jshint -W030 */
var chai = require('chai')
, expect = chai.expect
, Support = require(__dirname + '/../../support')
, DataTypes = require(__dirname + '/../../../../lib/data-types');
if (Support.dialectIsMySQL()) {
describe('[MYSQL Specific] Associations', function() {
describe('many-to-many', function() {
describe('where tables have the same prefix', function() {
it('should create a table wp_table1wp_table2s', function() {
var Table2 = this.sequelize.define('wp_table2', {foo: DataTypes.STRING})
, Table1 = this.sequelize.define('wp_table1', {foo: DataTypes.STRING})
, self = this;
Table1.belongsToMany(Table2, { through: 'wp_table1swp_table2s' });
Table2.belongsToMany(Table1, { through: 'wp_table1swp_table2s' });
return Table1.sync({ force: true }).then(function() {
return Table2.sync({ force: true }).then(function() {
expect(self.sequelize.modelManager.getModel('wp_table1swp_table2s')).to.exist;
});
});
});
});
describe('when join table name is specified', function() {
beforeEach(function() {
var Table2 = this.sequelize.define('ms_table1', {foo: DataTypes.STRING})
, Table1 = this.sequelize.define('ms_table2', {foo: DataTypes.STRING});
Table1.belongsToMany(Table2, {through: 'table1_to_table2'});
Table2.belongsToMany(Table1, {through: 'table1_to_table2'});
return Table1.sync({ force: true }).then(function() {
return Table2.sync({ force: true });
});
});
it('should not use only a specified name', function() {
expect(this.sequelize.modelManager.getModel('ms_table1sms_table2s')).not.to.exist;
expect(this.sequelize.modelManager.getModel('table1_to_table2')).to.exist;
});
});
});
describe('HasMany', function() {
beforeEach(function() {
//prevent periods from occurring in the table name since they are used to delimit (table.column)
this.User = this.sequelize.define('User' + Math.ceil(Math.random() * 10000000), { name: DataTypes.STRING });
this.Task = this.sequelize.define('Task' + Math.ceil(Math.random() * 10000000), { name: DataTypes.STRING });
this.users = null;
this.tasks = null;
this.User.belongsToMany(this.Task, {as: 'Tasks', through: 'UserTasks'});
this.Task.belongsToMany(this.User, {as: 'Users', through: 'UserTasks'});
var self = this
, users = []
, tasks = [];
for (var i = 0; i < 5; ++i) {
users[users.length] = {name: 'User' + Math.random()};
}
for (var x = 0; x < 5; ++x) {
tasks[tasks.length] = {name: 'Task' + Math.random()};
}
return this.sequelize.sync({ force: true }).then(function() {
return self.User.bulkCreate(users).then(function() {
return self.Task.bulkCreate(tasks);
});
});
});
describe('addDAO / getModel', function() {
beforeEach(function() {
var self = this;
self.user = null;
self.task = null;
return self.User.findAll().then(function(_users) {
return self.Task.findAll().then(function(_tasks) {
self.user = _users[0];
self.task = _tasks[0];
});
});
});
it('should correctly add an association to the dao', function() {
var self = this;
return self.user.getTasks().then(function(_tasks) {
expect(_tasks.length).to.equal(0);
return self.user.addTask(self.task).then(function() {
return self.user.getTasks().then(function(_tasks) {
expect(_tasks.length).to.equal(1);
});
});
});
});
});
describe('removeDAO', function() {
beforeEach(function() {
var self = this;
self.user = null;
self.tasks = null;
return self.User.findAll().then(function(_users) {
return self.Task.findAll().then(function(_tasks) {
self.user = _users[0];
self.tasks = _tasks;
});
});
});
it('should correctly remove associated objects', function() {
var self = this;
return self.user.getTasks().then(function(__tasks) {
expect(__tasks.length).to.equal(0);
return self.user.setTasks(self.tasks).then(function() {
return self.user.getTasks().then(function(_tasks) {
expect(_tasks.length).to.equal(self.tasks.length);
return self.user.removeTask(self.tasks[0]).then(function() {
return self.user.getTasks().then(function(_tasks) {
expect(_tasks.length).to.equal(self.tasks.length - 1);
return self.user.removeTasks([self.tasks[1], self.tasks[2]]).then(function() {
return self.user.getTasks().then(function(_tasks) {
expect(_tasks).to.have.length(self.tasks.length - 3);
});
});
});
});
});
});
});
});
});
});
});
}