scope.test.js
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"use strict";
/* jshint camelcase: false, expr: true */
var chai = require('chai')
, expect = chai.expect
, Support = require(__dirname + '/../support')
, DataTypes = require(__dirname + "/../../lib/data-types")
, Sequelize = require('../../index')
, Promise = Sequelize.Promise
, assert = require('assert');
chai.config.includeStack = true;
describe(Support.getTestDialectTeaser("associations"), function() {
describe('scope', function () {
beforeEach(function () {
this.Post = this.sequelize.define('post', {});
this.Image = this.sequelize.define('image', {});
this.Question = this.sequelize.define('question', {});
this.Comment = this.sequelize.define('comment', {
title: Sequelize.STRING,
commentable: Sequelize.STRING,
commentable_id: Sequelize.INTEGER
}, {
instanceMethods: {
getItem: function() {
return this['get'+this.get('commentable').substr(0, 1).toUpperCase()+this.get('commentable').substr(1)]();
}
}
});
this.Post.hasMany(this.Comment, {
foreignKey: 'commentable_id',
scope: {
commentable: 'post'
}
});
this.Comment.belongsTo(this.Post, {
foreignKey: 'commentable_id',
as: 'post',
scope: {
commentable: 'post'
}
});
this.Image.hasMany(this.Comment, {
foreignKey: 'commentable_id',
scope: {
commentable: 'image'
}
});
this.Comment.belongsTo(this.Image, {
foreignKey: 'commentable_id',
as: 'image',
scope: {
commentable: 'image'
}
});
this.Question.hasMany(this.Comment, {
foreignKey: 'commentable_id',
scope: {
commentable: 'question'
}
});
this.Comment.belongsTo(this.Question, {
foreignKey: 'commentable_id',
as: 'question',
scope: {
commentable: 'question'
}
});
});
it('should create associations and find association with scope values', function () {
var self = this;
return this.sequelize.sync({force: true}).then(function () {
return Promise.join(
self.Post.create(),
self.Image.create(),
self.Question.create(),
self.Comment.create({
title: 'I am a image comment'
}),
self.Comment.create({
title: 'I am a question comment'
})
);
}).bind(this).spread(function (post, image, question, commentA, commentB) {
this.post = post;
this.image = image;
this.question = question;
return Promise.join(
post.createComment({
title: 'I am a post comment'
}),
image.addComment(commentA),
question.setComments([commentB])
);
}).then(function () {
return self.Comment.findAll();
}).then(function (comments) {
comments.forEach(function (comment) {
expect(comment.get('commentable')).to.be.ok;
});
expect(comments.map(function (comment) {
return comment.get('commentable');
}).sort()).to.deep.equal(['image', 'post', 'question']);
}).then(function () {
return Promise.join(
this.post.getComments(),
this.image.getComments(),
this.question.getComments()
);
}).spread(function (postComments, imageComments, questionComments) {
expect(postComments.length).to.equal(1);
expect(postComments[0].get('title')).to.equal('I am a post comment');
expect(imageComments.length).to.equal(1);
expect(imageComments[0].get('title')).to.equal('I am a image comment');
expect(questionComments.length).to.equal(1);
expect(questionComments[0].get('title')).to.equal('I am a question comment');
return [postComments[0], imageComments[0], questionComments[0]];
}).spread(function (postComment, imageComment, questionComment) {
return Promise.join(
postComment.getItem(),
imageComment.getItem(),
questionComment.getItem()
);
}).spread(function (post, image, question) {
expect(post.Model).to.equal(self.Post);
expect(image.Model).to.equal(self.Image);
expect(question.Model).to.equal(self.Question);
});
});
});
});