Class: Decidim::NotificationGenerator

Inherits:
Object
  • Object
show all
Defined in:
app/services/decidim/notification_generator.rb

Overview

This class handles system events affecting resources and generates a notification for each recipient by scheduling a new Decidim::NotificationGeneratorForRecipientJob job for each of them. This way we can easily control which jobs fail and retry them, so that we don’t have duplicated notifications.

Instance Method Summary collapse

Constructor Details

#initialize(event, event_class, resource, followers, affected_users, extra) ⇒ NotificationGenerator

Initializes the class.

event - A String with the name of the event. event_class - A class that wraps the event. resource - an instance of a class implementing the Decidim::Resource concern. followers - a collection of Users that receive the notification because

they're following it

affected_users - a collection of Users that receive the notification because

they're affected by it

extra - a Hash with extra information for the event. rubocop:disable Metrics/ParameterLists



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# File 'app/services/decidim/notification_generator.rb', line 21

def initialize(event, event_class, resource, followers, affected_users, extra)
  @event = event
  @event_class = event_class
  @resource = resource
  @followers = followers
  @affected_users = affected_users
  @extra = extra
end

Instance Method Details

#generate ⇒ Object

Schedules a job for each recipient to create the notification. Returns nil if the resource is not resource or if it is not present.

Returns nothing.



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# File 'app/services/decidim/notification_generator.rb', line 35

def generate
  return unless resource
  return unless event_class.types.include?(:notification)

  followers.each do |recipient|
    generate_notification_for(recipient, user_role: :follower) if ["all", "followed-only"].include?(recipient.notification_types)
  end

  affected_users.each do |recipient|
    generate_notification_for(recipient, user_role: :affected_user) if ["all", "own-only"].include?(recipient.notification_types)
  end
end