sequelize.js

I have two models Contact and Thread with a many to many relationship represented across a join table ThreadContacts . I need to write a query to find a Thread which has associations with an exact list of Contacts . For example, I might have a list of contact_id 's [1,2,3,4], and I need to find a Thread that is associated with these exact 4 contacts. I have tried including Contact on a findAll query: Thread.findOne({ include: [{ model: Contact, where: { id: $in: [1, 2, 3, 4] }, }], }) Of course this doesn't work because it'll return a thread that has a ThreadContact with any of the 4 ids. I

I am trying to diagnose the cause of some slow downs in my Express app which is using SequlizeJS as the ORM. I have a model that has a 2x hasMany & a hasOne relation with 2 other models: Update : I've made the associations within the define call using the classMethods#associate function. // Model1 classMethods: { associate: function(models) { Model1.hasMany(models.Model2); Model1.hasMany(models.Model3); Model1.hasOne(models.Model2, {as: 'next', foreignKey: 'model2_next'}); } } // Model2 classMethods: { associate: function(models) { Model2.belongsTo(models.Model1, {foreignKey: 'model2_next'});

say I have two models: Post and Comment , now I can use Post.findAll() to get all posts, but I also need the comment count of each post, I can make a loop and use post.countComments() to get the count, but is it possible to do that in one query? thanks You can do something like this: var attributes = Object.keys(Post.attributes); var sequelize = Post.sequelize; attributes.push([sequelize.literal('(SELECT COUNT(*) FROM "Comments" where "Comments"."postId" = "Post"."postId")'), 'commentsCount']); var query = { attributes: attributes, include: [{model: Comment}] } Post.findAndCountAll(query)

I have a User sequelize model that has a beforeCreate hook that encrypts the password using bcrypyt . Bcrypyt is loaded as a dependency by the model using a require statement. Now, I'm writing my tests for my models and I want to write a test that ensures bcrypt is hashing the password on create. At the moment, I have added a setter onto the User model that sets the bcrypt object. In my tests, I can then create a spy using sinon and inject the spy using the setter and ensure it is called on create. Is this the correct way to do it? I feel as if I'm creating a setter purely for my tests and

I like to convert the following query into sequelize code select * from table_a inner join table_b on table_a.column_1 = table_b.column_1 and table_a.column_2 = table_b.column_2 I have tried many approaches and followed many provided solution but I am unable to achieve the desired query from sequelize code. The max I achieve is following : select * from table_a inner join table_b on table_a.column_1 = table_b.column_1 I want the second condition also. and table_a.column_2 = table_b.column_2 any proper way to achieve it? You need to define your own on clause of the JOIN statement ModelA.findAll

I have a node / express / sequelize app. I am using the build method in sequelize to create an instances of my foo model. Foo Controller exports.create = function(req, res) { var foo = db.Foo.build(req.body); foo.save().then(function(){ // do stuff }); } Foo Model module.exports = function(sequelize, DataTypes) { var Foo = sequelize.define('Foo', { bar: DataTypes.STRING, baz: DataTypes.STRING } Does the build method check that the data I am saving is clean or do I need to take some extra precautions here? Krzysztof Sztompka I prefer to make secondary validation in routes, because: 1) Storing