Skip password validation of Devise gem.

In general if we need to skip validation we can do it by :

    user.save(validate: false)

validate: false skips validation from all the attributes.

But what if we need skip validation on particular field like password validation of devise gem.

In User.rb

    attr_accessor :skip_password_validation

    private

           def password_required?
                 return false if skip_password_validation
              super
           end

In registrations_controller.rb

    def configure_sign_up_params
        params.require(:user).permit(:email, :password, :password_confirmation, :skip_password_validation)
    end

Now, whenever you want to skip password validation, pass skip_password_validation params as true

    user.skip_password_validation = true
    user.save

It will create User without password.