My sequelize migration file being referenced in terminal:
Sequelize CLI [Node: 16.10.0, CLI: 6.2.0, ORM: 6.7.0]
Loaded configuration file "db\config.js".
Using environment "development".
== 20211021030720-create-customers: migrating =======
ERROR: Cannot read properties of undefined (reading 'toString')
This is my model file:
const { Model, DataTypes, Sequelize } = require('sequelize');
const { USER_TABLE } = require('./user.model');
const CUSTOMER_TABLE = 'customers';
const CustomerSchema = {
costomerId: {
allowNull: false,
autoIncrement: true,
primaryKey: true,
type: DataTypes.INTEGER,
},
customerName: {
allowNull: false,
type: DataTypes.STRING,
},
customerLastname: {
allowNull: false,
type: DataTypes.STRING,
},
customerPhone: {
allowNull: true,
type: DataTypes.STRING,
},
createdAt: {
allowNull: false,
type: DataTypes.DATE,
field: 'create_at',
defaultValue: Sequelize.NOW,
},
userId: {
field: 'user_id',
allowNull: false,
type: DataTypes.INTEGER,
references: {
model: USER_TABLE,
key: 'userId'
},
onUpdate: 'CASCADE',
onDelete: 'SET NULL'
}
}
class Customer extends Model {
static associate(models) {
this.belongsTo(models.User, {as: 'user'});
}
static config(sequelize) {
return {
sequelize,
tableName: CUSTOMER_TABLE,
modelName: 'Customer',
timestamps: false
}
}
}
module.exports = { CUSTOMER_TABLE, CustomerSchema, Customer };
Other posts mention that it can be caused by an invalid property of DataTypes but I have already checked the code several times and I cannot find the problem.
If other information to help solve, please ask for it.
EDIT
I realized that I wrote .addColumn instead .createTable. Now everything is working properly.
module.exports = {
up: async (queryInterface) => {
await queryInterface.createTable(CUSTOMER_TABLE, CustomerSchema);
},
Related
When I try to insert new category, I got this error:
error: column "image" does not exist
sql: 'INSERT INTO "Categories" ("id","createdAt","updatedAt") VALUES (DEFAULT,$1,$2) RETURNING "id","image","title","createdAt","updatedAt";'
The problem is that it doesn't insert name and other values and returns columns belong to post table.
My guesses are the problem of sequelize-cli and sequelize version or missing something in models or migrations.
I only insert values into name, createdAt and updatedAt column:
await Category.create({
name: req.body.name,
createdAt: new Date(),
updatedAt: new Date()
});
My category model:
const { Model } = require("sequelize");
module.exports = (sequelize, DataTypes) => {
class Category extends Model {
static associate(models) {
Category.hasMany(models.Post, { as: "posts", foreignKey: "categoryId" });
}
}
Category.init(
{
name: DataTypes.STRING
},
{
sequelize,
modelName: "Category"
}
);
return Category;
};
My Post Model:
const { Model } = require("sequelize");
module.exports = (sequelize, DataTypes) => {
class Post extends Model {
static associate(models) {
Post.belongsTo(models.Category, { foreignKey: "categoryId", onDelete: "CASCADE", as: "category" });
}
}
Post.init(
{
title: DataTypes.STRING,
image: DataTypes.STRING,
content: DataTypes.TEXT,
categoryId: DataTypes.INTEGER
},
{
sequelize,
modelName: "Post"
}
);
return Post;
};
Post migration:
module.exports = {
async up(queryInterface, Sequelize) {
await queryInterface.createTable("Posts", {
id: {
allowNull: false,
autoIncrement: true,
primaryKey: true,
type: Sequelize.INTEGER
},
title: {
type: Sequelize.STRING
},
image: {
type: Sequelize.STRING
},
content: {
type: Sequelize.TEXT
},
categoryId: {
type: Sequelize.INTEGER,
allowNull: false,
onDelete: "CASCADE",
references: {
model: "Categories",
key: "id"
}
},
createdAt: {
allowNull: false,
type: Sequelize.DATE
},
updatedAt: {
allowNull: false,
type: Sequelize.DATE
}
});
},
Category migration:
module.exports = {
async up(queryInterface, Sequelize) {
await queryInterface.createTable("Categories", {
id: {
allowNull: false,
autoIncrement: true,
primaryKey: true,
type: Sequelize.INTEGER
},
name: {
type: Sequelize.STRING
},
createdAt: {
allowNull: false,
type: Sequelize.DATE
},
updatedAt: {
allowNull: false,
type: Sequelize.DATE
}
});
},
I couldn't find solution for this, therefor I used sequelize.query
I am working on an electron app and for the database, I am using sqlite3 along with sequelize. I want to establish a one-to-many relationship between two of the following models.
Item
Metric
Metrics can be liters/kilograms/units and an item can be measured in any of these metrics. So following is how I have declared the Item model.
const { Model, DataTypes } = require("sequelize");
const sequelize = require("../database/db");
const Metric = require("./metricModel");
class Item extends Model {}
Item.init(
{
id: {
type: DataTypes.INTEGER,
autoIncrement: true,
primaryKey: true,
},
name: {
type: DataTypes.STRING,
allowNull: false,
},
metricId: {
type: DataTypes.INTEGER,
allowNull: false,
references: {
model: "metrics",
key: "id",
},
},
available: {
type: DataTypes.FLOAT,
defaultValue: 0,
},
incoming: {
type: DataTypes.FLOAT,
defaultValue: 0,
},
},
{
sequelize,
tableName: "items",
freezeTableName: true,
}
);
Item.associate = (models) => {
Item.belongsTo(models.Metric, { foreignKey: "metricId" });
};
module.exports = Item;
And following is how I have declared the Metric
const { Model, DataTypes } = require("sequelize");
const sequelize = require("../database/db");
const Item = require("./itemModel");
class Metric extends Model {}
Metric.init(
{
id: {
type: DataTypes.INTEGER,
autoIncrement: true,
primaryKey: true,
},
name: {
type: DataTypes.STRING,
allowNull: false,
},
description: {
type: DataTypes.STRING(10000),
},
},
{
sequelize,
tableName: 'metrics', freezeTableName: true
}
);
Metric.associate = function (models) {
Metric.hasMany(models.Item, { foreignKey: "metricId" });
};
module.exports = Metric;
But in the logs, I can't see any association getting created.
Also on making a select query on items. like below.
const items = await Item.findAll({include: [Metric]});
I get below error
My bad, there was a duplicate column in my items model and since during debugging the table named item was present beforehand, it was working fine. If you encounter this issue, make sure all your tables are declared properly.
everyone. I'm very new for sequelize ORM with nodejs.
I've just created couple files for models seperately and I also seperate sequelize.js to connect to database.
The problem is when I make association between model(file)(Self Associate work well) and I've got an error
**** "hasMany called with something that's not a subclass of Sequelize.Model"
I tried to solved this but doesn't work until I put every model in the same file. So, I realized that every model must use common sequelize connection.
Is there anyways to solve this problem without sequelize-cli (I don't want to use sequelize-cli)
My code belows
Many thanks,
sequelize.js
const config = require("config");
const { Sequelize } = require("sequelize");
const sequelize = new Sequelize(
config.get("database"),
config.get("user"),
config.get("cipher"),
{
dialect: "mariadb",
timezone: "Asia/Bangkok",
}
);
module.exports = sequelize;
user.js
const { DataTypes, Model } = require("sequelize");
const sequelize = require("./sequelize");
const Position = require("./position");
class User extends Model {}
User.init(
{
uuid: {
type: DataTypes.UUID,
allowNull: false,
defaultValue: DataTypes.UUIDV4,
},
title: {
type: DataTypes.STRING,
allowNull: false,
},
firstname: {
type: DataTypes.STRING,
allowNull: false,
},
lastname: {
type: DataTypes.STRING,
allowNull: false,
},
phone: {
type: DataTypes.STRING,
allowNull: true,
},
email: {
type: DataTypes.STRING,
allowNull: true,
validate: {
isEmail: true,
},
},
imgurl: {
type: DataTypes.STRING,
allowNull: true,
},
login: {
type: DataTypes.STRING,
allowNull: false,
},
passphase: {
type: DataTypes.STRING,
allowNull: false,
},
status: {
type: DataTypes.INTEGER,
allowNull: false,
defaultValue: 1,
},
},
{
sequelize,
modelName: "User",
tableName: "users",
timestamps: true,
}
);
User.belongsToMany(User, {
as: "CreatedUser",
foreignKey: "user_id",
through: "UserCreator",
});
User.belongsToMany(User, {
as: "Creator",
foreignKey: "creator_id",
through: "UserCreator",
});
User.belongsToMany(User, {
as: "ModifiedUser",
foreignKey: "user_id",
through: "UserModifier",
});
User.belongsToMany(User, {
as: "Modifier",
foreignKey: "modifier_id",
through: "UserModifier",
});
User.belongsTo(Position);
module.exports = User;
position.js
const { DataTypes, Model } = require("sequelize");
const sequelize = require("./sequelize");
const User = require("./user");
class Position extends Model {}
Position.init(
{
uuid: {
type: DataTypes.UUID,
defaultValue: DataTypes.UUIDV4,
},
name: {
type: DataTypes.STRING,
allowNull: false,
},
status: {
type: DataTypes.INTEGER,
allowNull: false,
defaultValue: 1,
},
},
{
sequelize,
modelName: "Position",
tableName: "postions",
timestamps: true,
}
);
Position.hasMany(User, {
foreignKey: {
type: DataTypes.UUIDV4,
allowNull: false,
},
});
module.exports = Position;
Sequelize has a .define() method to create all your schemas in JSON. If you want to keep your connection to the database separate from your models, I suggest doing something like this
./models/schemas/User.js
const userSchema = {
attribute1: {
type: ...,
option1: ...,
option2: ...,
.
.
},
.
.
}
export default userSchema
Do the same with Position.js
Then:
./models/models.js
import {sequelize} from 'path/to/sequelize.js'
import positionSchema from './schemas/Position.js'
import userSchema from './schemas/User.js'
const User = sequelize.define("user", userSchema, { freezeTableName: true });
const Position = sequelize.define("position", positionSchema, { freezeTableName: true });
// add associations
export {
User,
Position,
.
.
}
I have a problem with migrating two tables with relationships. I want to add a foreign key to product.js migration, but it is not working. If I will run the application with await sequelize.sync(); database creating well.
How to fix this issue? I did the same thing with another migrations user and addresses, and it worked as I expected. Appreciate your help.
== 20210124144301-create-product: migrating =======
ERROR: Can't create table database_development.products (errno:
150 "Foreign key constraint is incorrectly formed")
create-category.js migration:
"use strict";
module.exports = {
up: async (queryInterface, Sequelize) => {
await queryInterface.createTable("сategories", {
id: {
allowNull: false,
autoIncrement: true,
primaryKey: true,
type: Sequelize.INTEGER,
},
name: {
type: Sequelize.STRING,
allowNull: false,
unique: true,
},
description: Sequelize.TEXT,
createdAt: {
allowNull: false,
type: Sequelize.DATE,
},
updatedAt: {
allowNull: false,
type: Sequelize.DATE,
},
});
},
down: async (queryInterface, Sequelize) => {
await queryInterface.dropTable("сategories");
},
};
create-product.js migration:
"use strict";
module.exports = {
up: async (queryInterface, Sequelize) => {
await queryInterface.createTable("products", {
id: {
allowNull: false,
autoIncrement: true,
primaryKey: true,
type: Sequelize.INTEGER,
},
categoryId: {
type: Sequelize.INTEGER,
allowNull: false,
references: {
model: "categories",
key: "id",
},
},
name: {
type: Sequelize.STRING,
allowNull: false,
},
description: {
type: Sequelize.TEXT,
allowNull: false,
},
price: {
type: Sequelize.DOUBLE(11, 2).UNSIGNED,
defaultValue: 0,
},
createdAt: {
allowNull: false,
type: Sequelize.DATE,
},
updatedAt: {
allowNull: false,
type: Sequelize.DATE,
},
});
},
down: async (queryInterface, Sequelize) => {
await queryInterface.dropTable("products");
},
};
category.js model:
"use strict";
const { Model } = require("sequelize");
module.exports = (sequelize, DataTypes) => {
class Category extends Model {
/**
* Helper method for defining associations.
* This method is not a part of Sequelize lifecycle.
* The `models/index` file will call this method automatically.
*/
static associate(models) {
this.hasMany(models.Product, {
foreignKey: "categoryId",
});
}
}
Category.init(
{
name: {
type: DataTypes.STRING,
allowNull: false,
unique: true,
},
description: DataTypes.TEXT,
},
{
sequelize,
tableName: "categories",
modelName: "Category",
}
);
return Category;
};
product.js model:
"use strict";
const { Model } = require("sequelize");
module.exports = (sequelize, DataTypes) => {
class Product extends Model {
/**
* Helper method for defining associations.
* This method is not a part of Sequelize lifecycle.
* The `models/index` file will call this method automatically.
*/
static associate(models) {
this.belongsTo(models.Category, {
foreignKey: "categoryId",
});
}
}
Product.init(
{
name: {
type: DataTypes.STRING,
allowNull: false,
},
description: {
type: DataTypes.TEXT,
allowNull: false,
},
price: {
type: DataTypes.DOUBLE(11, 2).UNSIGNED,
defaultValue: 0,
},
},
{
sequelize,
tableName: "products",
modelName: "Product",
}
);
return Product;
};
You need to add primary key(id) in your product and category model file also change your model associations .
product.js
"use strict";
const { Model } = require("sequelize");
module.exports = (sequelize, DataTypes) => {
class Product extends Model {
/**
* Helper method for defining associations.
* This method is not a part of Sequelize lifecycle.
* The `models/index` file will call this method automatically.
*/
static associate(models) {
Product.belongsTo(models.Category, {
foreignKey: "categoryId",
});
}
}
Product.init(
{
productId: {
allowNull: false,
autoIncrement: true,
primaryKey: true,
type: DataTypes.INTEGER
},
name: {
type: DataTypes.STRING,
allowNull: false,
},
description: {
type: DataTypes.TEXT,
allowNull: false,
},
price: {
type: DataTypes.DOUBLE(11, 2).UNSIGNED,
defaultValue: 0,
},
categoryId: {
type: DataTypes.INTEGER
}
},
{
sequelize,
tableName: "products",
modelName: "Product",
}
);
return Product;
};
Category.js
"use strict";
const { Model } = require("sequelize");
module.exports = (sequelize, DataTypes) => {
class Category extends Model {
/**
* Helper method for defining associations.
* This method is not a part of Sequelize lifecycle.
* The `models/index` file will call this method automatically.
*/
static associate(models) {
Category.hasMany(models.Product, {
foreignKey: "categoryId",
});
}
}
Category.init(
{
categoryId: {
allowNull: false,
autoIncrement: true,
primaryKey: true,
type: DataTypes.INTEGER
},
name: {
type: DataTypes.STRING,
allowNull: false,
unique: true,
},
description: DataTypes.TEXT,
},
{
sequelize,
tableName: "categories",
modelName: "Category",
}
);
return Category;
};
the foreign key must be the same type of the primary key on the other table
I am trying to create an attribute called "provider" in my postgresql model and make its data type an Object (see code below). However, I am getting the error Error: Unrecognized datatype for attribute "segment.provider".
I'm assuming this error is happening because I haven't specified what the data type of the "provider" attribute actually is (ie: type: DataTypes.OBJECT). To my knowledge, there's nothing in the Sequelize docs that demonstrates this ask of mine. Any and all help would be most appreciated. Thanks!
module.exports = (sequelize, DataTypes) => {
const Segment = sequelize.define(
'segment',
{
id: {
type: DataTypes.INTEGER,
autoIncrement: true,
primaryKey: true
},
provider: {
providerName: DataTypes.STRING,
externalId: DataTypes.STRING,
email: DataTypes.STRING,
privacyPolicy: DataTypes.STRING
}
},
{
freezeTableName: true,
tableName: 'segment'
}
);
return Segment;
}
Every field defined on a model(Table) is mapped into a column on the database.
That is what sequelize basically does.
Now, is there a field on a PostgreSQL database which is an object?
For what you are trying to do, you just need to use associations between tables.
Create a new model (Table) called provider:
And add the associations as follows in the example:
module.exports = (sequelize, DataTypes) => {
const Provider = sequelize.define(
'provider',
{
id: {
type: DataTypes.INTEGER,
autoIncrement: true,
primaryKey: true
},
name: {
type: DataTypes.STRING
},
email: {
type: DataTypes.STRING
},
privacyPolicy: {
type: DataTypes.STRING
}
},
{
freezeTableName: true,
tableName: 'provider'
}
);
// Apply the accosiation:
Provider.hasMany /* or has one */ (Segment, {foreignKey: 'provider_id'});
return Provider;
}
And in your Segment model add a foreign key and a reference to Provider
module.exports = (sequelize, DataTypes) => {
const Segment = sequelize.define(
'segment',
{
id: {
type: DataTypes.INTEGER,
autoIncrement: true,
primaryKey: true
},
provider_id: {
type: DataTypes.INTEGER,
references: {
model: 'provider',
key: 'id
}
}
},
{
freezeTableName: true,
tableName: 'segment'
}
);
// Apply the accosiation:
Segment.belongsTo(Provider, {foreignKey: 'id'});
return Segment;
}