class UserNotification < ActiveRecord::Base include NotificationsHelper belongs_to :user belongs_to :notification after_save :send_email def self.last_notifications( user, last_notification_id = nil, per_page = Constants::ACTIVITY_AND_NOTIF_SEARCH_LIMIT ) last_notification_id = Constants::INFINITY if last_notification_id < 1 Notification.joins(:user_notifications) .where('user_notifications.user_id = ?', user.id) .where('notifications.id < ?', last_notification_id) .order(created_at: :DESC) .limit(per_page) end def self.recent_notifications(user) Notification.joins(:user_notifications) .where('user_notifications.user_id = ?', user.id) .order(created_at: :DESC) .limit(Constants::ACTIVITY_AND_NOTIF_SEARCH_LIMIT) end def self.unseen_notification_count(user) where('user_id = ? AND checked = false', user.id).count end def self.seen_by_user(user) where(user: user).where(checked: false).update_all(checked: true) end def send_email case notification.type_of when 'system_message' send_email_notification( user, notification ) if user.system_message_notification_email when 'assignment' send_email_notification( user, notification ) if user.assignments_notification_email when 'recent_changes' send_email_notification( user, notification ) if user.recent_notification_email end end end