108 lines
3.6 KiB
Ruby
108 lines
3.6 KiB
Ruby
class PostTiming < ActiveRecord::Base
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belongs_to :topic
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belongs_to :user
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validates_presence_of :post_number
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validates_presence_of :msecs
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def self.pretend_read(topic_id, actual_read_post_number, pretend_read_post_number)
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# This is done in SQL cause the logic is quite tricky and we want to do this in one db hit
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#
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exec_sql("INSERT INTO post_timings(topic_id, user_id, post_number, msecs)
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SELECT :topic_id, user_id, :pretend_read_post_number, 1
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FROM post_timings pt
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WHERE topic_id = :topic_id AND
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post_number = :actual_read_post_number AND
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NOT EXISTS (
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SELECT 1 FROM post_timings pt1
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WHERE pt1.topic_id = pt.topic_id AND
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pt1.post_number = :pretend_read_post_number AND
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pt1.user_id = pt.user_id
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)
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",
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pretend_read_post_number: pretend_read_post_number,
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topic_id: topic_id,
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actual_read_post_number: actual_read_post_number
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)
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TopicUser.ensure_consistency!(topic_id)
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end
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# Increases a timer if a row exists, otherwise create it
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def self.record_timing(args)
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rows = exec_sql_row_count("UPDATE post_timings
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SET msecs = msecs + :msecs
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WHERE topic_id = :topic_id
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AND user_id = :user_id
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AND post_number = :post_number",
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args)
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if rows == 0
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Post.where(['topic_id = :topic_id and post_number = :post_number', args]).update_all 'reads = reads + 1'
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exec_sql("INSERT INTO post_timings (topic_id, user_id, post_number, msecs)
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SELECT :topic_id, :user_id, :post_number, :msecs
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WHERE NOT EXISTS(SELECT 1 FROM post_timings
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WHERE topic_id = :topic_id
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AND user_id = :user_id
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AND post_number = :post_number)",
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args)
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end
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end
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def self.destroy_for(user_id, topic_id)
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PostTiming.transaction do
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PostTiming.delete_all(['user_id = ? and topic_id = ?', user_id, topic_id])
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TopicUser.delete_all(['user_id = ? and topic_id = ?', user_id, topic_id])
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end
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end
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def self.process_timings(current_user, topic_id, topic_time, timings)
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current_user.update_time_read!
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highest_seen = 1
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timings.each do |post_number, time|
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if post_number >= 0
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PostTiming.record_timing(topic_id: topic_id,
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post_number: post_number,
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user_id: current_user.id,
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msecs: time)
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highest_seen = post_number.to_i > highest_seen ?
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post_number.to_i : highest_seen
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end
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end
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total_changed = 0
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if timings.length > 0
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total_changed = Notification.mark_posts_read(current_user, topic_id, timings.map{|t| t[0]})
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end
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TopicUser.update_last_read(current_user, topic_id, highest_seen, topic_time)
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if total_changed > 0
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current_user.reload
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current_user.publish_notifications_state
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end
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end
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end
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# == Schema Information
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#
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# Table name: post_timings
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#
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# topic_id :integer not null
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# post_number :integer not null
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# user_id :integer not null
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# msecs :integer not null
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#
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# Indexes
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#
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# post_timings_summary (topic_id,post_number)
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# post_timings_unique (topic_id,post_number,user_id) UNIQUE
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#
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