# Gemfile Rails ~> 5
gem 'notifications', '~> 0.6.0'
# Gemfile for Rails ~> 4.2
gem 'notifications', '~> 0.5.0'

class User
  def follow(user)
    Notification.create(notify_type: 'follow', actor: self, user: user)
  end
end

class Comment
  belongs_to :post
  belongs_to :user

  after_commit :create_notifications, on: [:create]
  def create_notifications
    Notification.create(
      notify_type: 'comment',
      actor: self.user,
      user: self.post.user,
      target: self)
  end
end

# unread count
unread_count = Notification.unread_count(current_user)

# read count
read_count = Notification.read_count(current_user)

# for non-user class
Notifications.config.user_class = 'Member'

#or change 

Notifications.configure do
  # Class name of you User model, default: 'User'
  self.user_class = 'User'

  # Method of user name in User model, default: 'name'
  # self.user_name_method = 'name'

  # Method of user avatar in User model, default: nil
  # self.user_avatar_url_method = nil

  # Method name of user profile page path, in User model, default: nil
  # self.user_profile_url_method = 'profile_url'

  # authenticate_user method in your Controller, default: nil
  # If you use Devise, authenticate_user! is correct
  # self.authenticate_user_method = 'authenticate_user!'

  # current_user method name in your Controller, default: 'current_user'
  # If you use Devise, current_user is correct
  # self.current_user_method = 'current_user'
end

# There have two notify_type
Notification.create(notify_type: 'follow' ....)
Notification.create(notify_type: 'mention', target: @reply, second_target: @topic, ....)