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remove post keeper references

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This commit is contained in:
Albert Yi
2019-01-31 15:45:06 -08:00
parent 0c791a1257
commit d8aabff77b
6 changed files with 2 additions and 310 deletions
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184
app/logical/post_keeper_manager.rb
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@@ -1,184 +0,0 @@
class PostKeeperManager
def self.enabled?
PostArchive.enabled?
end
# these are all class methods to simplify interaction with delayedjob
# in general we want to call these methods synchronously because updating
# the keeper data with a delay defeats the purpose. but this relies on
# archive db being up; we don't want to block updates in case it goes down.
# so we need to permit async updates also.
def self.queue_check(post_id, updater_id = nil)
delay(queue: "default", run_at: 1.minute.from_now).check_and_update(post_id)
end
def self.check_and_update(post, updater_id = nil, increment_tags = nil)
post = Post.find(post) unless post.is_a?(Post)
check_and_assign(post, updater_id, increment_tags)
post.update_column(:keeper_data, post.keeper_data)
rescue ActiveRecord::StatementInvalid => e
PostArchive.check_for_retry(e.message)
raise
end
def self.check_and_assign(post, updater_id = nil, increment_tags = nil)
post = Post.find(post) unless post.is_a?(Post)
keeper_id = check(post, updater_id, increment_tags)
post.keeper_data = {uid: keeper_id}
end
# because post archives might get delayed, we need to pass along the most
# recently added tags inside the job. downside: this doesn't keep track of
# source or rating changes. this method changes no state.
def self.check(post, updater_id = nil, increment_tags = nil, enable_async = true)
if enable_async && !PostArchive.test_connection
# if archive is down, just queue this work and do it later
queue_check(post.id, updater_id, increment_tags)
return
end
changes = {}
final_tags = Set.new(post.tag_array)
# build a mapping of who added a tag first
PostArchive.where(post_id: post.id).order("updated_at").each do |pa|
pa.added_tags.each do |at|
if pa.updater_id
if !changes.has_key?(at) && final_tags.include?(at)
changes[at] = pa.updater_id
end
if pa.source_changed? && pa.source == post.source
changes[" source"] = pa.updater_id
end
end
end
end
if updater_id && increment_tags.present?
increment_tags.each do |tag|
if !changes.has_key?(tag)
changes[tag] = updater_id
end
end
end
# add up how many changes each user has made
ranking = changes.values.uniq.inject({}) do |h, user_id|
h[user_id] = changes.select {|k, v| v == user_id}.size
h
end
ranking.max_by {|k, v| v}.try(:first)
end
# these methods are for reporting and are not used
# in general, unweighted changes attribution 5% of the time,
# weighted changes attribution 12% of the time at w=1000,
# up to 17% of the time at w=100.
def self.evaluate(post_ids)
total = 0
matches = 0
weighted_matches = 0
keeper_dist = {}
uploader_dist = {}
Post.where(id: post_ids).find_each do |post|
keeper = check(post)
total += 1
if keeper != post.uploader_id
matches += 1
# keeper_dist[keeper] ||= 0
# keeper_dist[keeper] += 1
# uploader_dist[post.uploader_id] ||= 0
# uploader_dist[post.uploader_id] += 1
end
if check_weighted(post) != post.uploader_id
puts post.id
weighted_matches += 1
end
end
puts "total: #{total}"
puts "unweighted changes: #{matches}"
puts "weighted changes: #{weighted_matches}"
# puts "keepers:"
# keeper_dist.each do |k, v|
# puts " #{k}: #{v}"
# end
# puts "uploaders:"
# uploader_dist.each do |k, v|
# puts " #{k}: #{v}"
# end
end
def self.print_weighted(post, w = 1000)
changes = {}
final_tags = Set.new(post.tag_array)
# build a mapping of who added a tag first
PostArchive.where(post_id: post.id).order("updated_at").each do |pa|
pa.added_tags.each do |at|
if pa.updater_id
if !changes.has_key?(at) && final_tags.include?(at)
changes[at] = pa.updater_id
end
if pa.source_changed? && pa.source == post.source
changes[" source"] = pa.updater_id
end
end
end
end
# add up how many changes each user has made
ranking = changes.values.uniq.inject({}) do |h, user_id|
h[user_id] = changes.select {|k, v| v == user_id}.map do |tag, user_id|
count = Tag.find_by_name(tag).try(:post_count) || 0
1.0 / (w + count)
end.sum
h
end
ranking.sort_by {|k, v| v}.each do |user_id, score|
user = User.find(user_id)
sum = changes.select {|k, v| v == user_id}.size
Rails.logger.debug "#{user.name}: %.4f (%d)" % [score, sum]
end
end
def self.check_weighted(post, w = 1000)
changes = {}
final_tags = Set.new(post.tag_array)
# build a mapping of who added a tag first
PostArchive.where(post_id: post.id).order("updated_at").each do |pa|
pa.added_tags.each do |at|
if pa.updater_id
if !changes.has_key?(at) && final_tags.include?(at)
changes[at] = pa.updater_id
end
if pa.source_changed? && pa.source == post.source
changes[" source"] = pa.updater_id
end
end
end
end
# add up how many changes each user has made
ranking = changes.values.uniq.inject({}) do |h, user_id|
h[user_id] = changes.select {|k, v| v == user_id}.map do |tag, user_id|
count = Tag.find_by_name(tag).try(:post_count) || 0
1.0 / (w + count)
end.sum
h
end
ranking.max_by {|k, v| v}.first
end
end