sequelize.js TIMESTAMP not DATETIME

Question

In my node.js app I have several models in which I want to define TIMESTAMP type columns, including the default timestamps created_at and updated_at.

According to sequelize.js' documentation, there is only a DATE data type. It creates DATETIME columns in MySQL.

Example:

var User = sequelize.define('User', {
... // columns
last_login: {
            type: DataTypes.DATE,
            allowNull: false
        },
...
}, { // options
        timestamps: true
});

Is it possible to generate TIMESTAMP columns instead?

Solution 1

Just pass in 'TIMESTAMP' string to your type

module.exports = {
  up: function (queryInterface, Sequelize) {
    return queryInterface.createTable('users', {
      id: {
        type: Sequelize.INTEGER,
        primaryKey: true,
        autoIncrement: true
      },
        created_at: {
        type: 'TIMESTAMP',
        defaultValue: Sequelize.literal('CURRENT_TIMESTAMP'),
        allowNull: false
      },
      updated_at: {
        type: 'TIMESTAMP',
        defaultValue: Sequelize.literal('CURRENT_TIMESTAMP'),
        allowNull: false
      }
    });
  }
};

Solution 2

According to the Sequelize Documentation, you can set a defaultValue of Sequelize.NOW to create a timestamp field. This has the effect but relies on Sequelize to actually populate the timestamp. It does not create a "CURRENT_TIMESTAMP' attribute on the table.

var Foo = sequelize.define('Foo', {
    // default values for dates => current time
    myDate: { 
         type: Sequelize.DATE, 
         defaultValue: Sequelize.NOW 
    }
});

So, this does accomplish the end goal of having a timestamp field, but it is controlled through Sequelize and not through the actual database engine.

It also appears to work on databases that do not have a timestamp functionality, so that may be a benefit.

Reference URL: http://sequelize.readthedocs.org/en/latest/docs/models-definition/#definition

Solution 3

In my case i create model like below

module.exports = (sequelize, type) => {
    return sequelize.define('blog', {
        blogId: {
          type: type.INTEGER,
          primaryKey: true,
          autoIncrement: true
        },
        text: type.STRING,
        createdAt:{
            type: 'TIMESTAMP',
            defaultValue: sequelize.literal('CURRENT_TIMESTAMP'),
            allowNull: false
        },
        updatedAt:{
            type: 'TIMESTAMP',
            defaultValue: sequelize.literal('CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP'),
            allowNull: false
        }
    })
}

Solution 4

You can also use the moment for creating a timestamp:

const moment = require('moment-timezone');

    createdAt: {
      type: DataTypes.NOW,
      allowNull: false,
      defaultValue: moment.utc().format('YYYY-MM-DD HH:mm:ss'),
      field: 'createdAt'
    },

Solution 5

instead of

 type: DataTypes.DATE,

use below code

      createdAt: {
        allowNull: false,
        type: Sequelize.DATE,
        defaultValue: Sequelize.fn('NOW'),
      },
      updatedAt: {
        allowNull: false,
        type: Sequelize.DATE,
        defaultValue: Sequelize.fn('NOW'),
      },

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