79 lines
2.1 KiB
Ruby
79 lines
2.1 KiB
Ruby
require_dependency 'enum'
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class Notification < ActiveRecord::Base
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belongs_to :user
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belongs_to :topic
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validates_presence_of :data
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validates_presence_of :notification_type
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scope :unread, lambda { where(read: false) }
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scope :recent, lambda { order('created_at desc').limit(10) }
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def self.types
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@types ||= Enum.new(
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:mentioned, :replied, :quoted, :edited, :liked, :private_message,
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:invited_to_private_message, :invitee_accepted, :posted, :moved_post
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)
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end
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def self.mark_posts_read(user, topic_id, post_numbers)
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Notification.update_all "read = 't'", user_id: user.id, topic_id: topic_id, post_number: post_numbers, read: false
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end
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def self.interesting_after(min_date)
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result = where("created_at > ?", min_date)
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.includes(:topic)
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.unread
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.limit(20)
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.order("CASE WHEN notification_type = #{Notification.types[:replied]} THEN 1
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WHEN notification_type = #{Notification.types[:mentioned]} THEN 2
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ELSE 3
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END, created_at DESC").to_a
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# Remove any duplicates by type and topic
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if result.present?
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seen = {}
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to_remove = Set.new
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result.each do |r|
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seen[r.notification_type] ||= Set.new
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if seen[r.notification_type].include?(r.topic_id)
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to_remove << r.id
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else
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seen[r.notification_type] << r.topic_id
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end
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end
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result.reject! {|r| to_remove.include?(r.id) }
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end
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result
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end
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# Be wary of calling this frequently. O(n) JSON parsing can suck.
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def data_hash
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@data_hash ||= begin
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return nil if data.blank?
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JSON.parse(data).with_indifferent_access
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end
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end
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def text_description
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link = block_given? ? yield : ""
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I18n.t("notification_types.#{Notification.types[notification_type]}", data_hash.merge(link: link))
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end
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def url
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if topic.present?
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return topic.relative_url(post_number)
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end
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end
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def post
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return if topic_id.blank? || post_number.blank?
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Post.where(topic_id: topic_id, post_number: post_number).first
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end
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end
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