Notifications

Rails mountable Notification for any applications.

Example:

Installation

# Gemfile
gem 'notifications'

And then run bundle install.

Now you have notifications generator in Rails application:

$ rails g notifications:install

And, you can generate views, controller if you need custom them:

$ rails g notifications:views
$ rails g notifications:controllers

Usage

Create a Notification

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

class Comment
  belongs_to :post
  belongs_user :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

Get user unread count:

count = Notification.unread_count(current_user)

Write your custom Notification partial view for notify_types:

If you create a notify_type, you need add a partial view in app/views/notifications/ path, for example:

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

You app must be have:

app/views/notifications/_follow.html.erb
app/views/notifications/_mention.html.erb

# app/views/notifications/_follow.html.erb
<div class="media-heading">
  <%= link_to notification.actor.title, notification.actor %> just followed you.
</div>

# app/views/notifications/_mention.html.erb
<div class="media-heading">
  <%= link_to notification.actor.title, notification.actor %> has mention you in
  <%= link_to notification.second_target.title, topic_path(notification.second_target) %>
</div>
<div class="media-content">
  <%= notification.target.body %>
</div>

About Notification template N+1 performance

Suggest you to use second_level_cache for solve N+1 performance issue.

Contributing

Contribution directions go here.

Site Used

Ruby China

License

The gem is available as open source under the terms of the MIT License.

mezbahalam/notifications