123 lines
3.3 KiB
Ruby
123 lines
3.3 KiB
Ruby
class PostAlertObserver < ActiveRecord::Observer
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observe :post_action, :post_revision
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def self.alerter
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@alerter ||= PostAlerter.new
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end
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def alerter
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self.class.alerter
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end
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# Dispatch to an after_save_#{class_name} method
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def after_save(model)
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method_name = callback_for('after_save', model)
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send(method_name, model) if respond_to?(method_name)
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end
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# Dispatch to an after_create_#{class_name} method
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def after_create(model)
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method_name = callback_for('after_create', model)
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send(method_name, model) if respond_to?(method_name)
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end
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def refresh_like_notification(post, read)
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return unless post && post.user_id
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usernames = post.post_actions.where(post_action_type_id: PostActionType.types[:like])
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.joins(:user)
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.order('post_actions.created_at desc')
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.where('post_actions.created_at > ?', 1.day.ago)
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.pluck(:username)
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if usernames.length > 0
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data = {
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topic_title: post.topic.title,
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username: usernames[0],
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display_username: usernames[0],
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username2: usernames[1],
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count: usernames.length
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}
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Notification.create(
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notification_type: Notification.types[:liked],
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topic_id: post.topic_id,
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post_number: post.post_number,
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user_id: post.user_id,
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read: read,
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data: data.to_json
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)
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end
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end
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def after_save_post_action(post_action)
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# We only care about deleting post actions for now
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return if post_action.deleted_at.blank?
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if post_action.post_action_type_id == PostActionType.types[:like] && post_action.post
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read = true
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Notification.where(
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topic_id: post_action.post.topic_id,
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user_id: post_action.post.user_id,
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post_number: post_action.post.post_number,
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notification_type: Notification.types[:liked]
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).each do |notification|
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read = false unless notification.read
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notification.destroy
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end
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refresh_like_notification(post_action.post, read)
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else
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# not using destroy_all cause we want stuff to trigger
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Notification.where(post_action_id: post_action.id).each(&:destroy)
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end
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end
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def self.after_create_post_action(post_action)
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# We only notify on likes for now
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return unless post_action.is_like?
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post = post_action.post
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return if post_action.user.blank?
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alerter.create_notification(
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post.user,
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Notification.types[:liked],
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post,
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display_username: post_action.user.username,
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post_action_id: post_action.id,
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user_id: post_action.user_id
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)
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end
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def after_create_post_action(post_action)
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self.class.after_create_post_action(post_action)
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end
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def after_create_post_revision(post_revision)
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post = post_revision.post
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return unless post
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return if post_revision.user.blank?
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return if post_revision.user_id == post.user_id
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return if post.topic.private_message?
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return if SiteSetting.disable_edit_notifications && post_revision.user_id == Discourse::SYSTEM_USER_ID
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alerter.create_notification(
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post.user,
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Notification.types[:edited],
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post,
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display_username: post_revision.user.username,
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acting_user_id: post_revision.try(:user_id)
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)
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end
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protected
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def callback_for(action, model)
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"#{action}_#{model.class.name.underscore.gsub(/.+\//, '')}"
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end
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end
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