title: Setting default value on sequelize ENUM type
body: <p>I am currently trying to set default value on a column with type <code>ENUM</code>, however if i set the <code>defaultValue</code> to <code>"employee"</code> which is one of the values of the enum, I get the below error message: </p>
  
  <pre><code>$ npx sequelize db:migrate
  
  Sequelize CLI [Node: 10.16.0, CLI: 5.5.0, ORM: 5.15.1]
  
  Loaded configuration file "src\config\config.js".
  Using environment "development".
  == 20190824180419-create-user: migrating =======
  
  ERROR: invalid input value for enum "enum_Users_role": "employee"
  </code></pre>
  
  <p>Find bellow my user migration file definition</p>
  
  <pre><code>20190824180419-create-user.js
  
  
  export default {
    up: (queryInterface, Sequelize) =&gt; queryInterface.createTable('Users', {
      uuid: {
      allowNull: false,
      primaryKey: true,
      type: Sequelize.UUID,
      defaultValue: Sequelize.UUIDV4,
    },
    email: {
      type: Sequelize.STRING
    },
    password: {
      type: Sequelize.STRING
    },
    name: {
      type: Sequelize.STRING
    },
    role: {
      type: Sequelize.ENUM,
      values: ['employee', 'super_admin', 'travel_admin', 'travel_team_manager', 'manager', 'supplier'],
      defaultValue: 'employee'
    }
  }),
  down: queryInterface =&gt; queryInterface.dropTable('Users')
  </code></pre>
  
  <p>};</p>
  
  <p>Find bellow my user model file definition:</p>
  
  <pre><code>user.js
  
  export default (sequelize, DataTypes) =&gt; {
    const User = sequelize.define('User', {
      uuid: {
        type: DataTypes.UUID,
        defaultValue: DataTypes.UUIDV4,
        primaryKey: true
      },
      email: DataTypes.STRING,
      password: DataTypes.STRING,
      name: DataTypes.STRING,
      role: {
        type: DataTypes.ENUM('employee', 'super_admin', 'travel_admin', 'travel_team_manager', 'manager', 'supplier'),
        defaultValue: 'employee'
       }
    }, {});
    User.associate = () =&gt; {
     // associations can be defined here
    };
    return User;
  };
  </code></pre>
  
  <p><strong>Package versions:</strong></p>
  
  <pre><code>node: v10.16.0
  npm: 6.9.0
  sequelize: 5.15.1
  sequelize-cli: 5.5.0
  </code></pre>