Create migration for dob column

users-api/src/migrations/20240119173749-change-dob-data-type.js

@@ -0,0 +1,30 @@
+'use strict';
+
+/** @type {import('sequelize-cli').Migration} */
+module.exports = {
+  async up (queryInterface, Sequelize) {
+    // Add a temporary column
+    await queryInterface.addColumn('users', 'dob_temp', {
+      type: Sequelize.DATEONLY,
+    });
+
+    // Convert and move the data from 'dob' to 'dob_temp'
+    await queryInterface.sequelize.query(`
+      UPDATE "users" 
+      SET "dob_temp" = "dob"::DATE
+    `);
+
+    // Remove the old 'dob' column
+    await queryInterface.removeColumn('users', 'dob');
+
+    // Rename the 'dob_temp' column to 'dob'
+    await queryInterface.renameColumn('users', 'dob_temp', 'dob');
+  },
+
+  async down (queryInterface, Sequelize) {
+    await queryInterface.changeColumn('users', 'dob', {
+      type: Sequelize.STRING,
+      allowNull: true
+    });
+  }
+};

users-api/src/models/user.js

@@ -21,7 +21,7 @@ module.exports = (sequelize, DataTypes) => {
     zip: DataTypes.STRING,
     age: DataTypes.INTEGER,
     gender: DataTypes.STRING,
-    dob: DataTypes.STRING
+    dob: DataTypes.DATEONLY
   }, {
     sequelize,
     modelName: 'user',