discourse/app/models/trust_level3_requirements.rb

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# This class performs calculations to determine if a user qualifies for
# the Leader (3) trust level.
class TrustLevel3Requirements
class PenaltyCounts
attr_reader :silenced, :suspended
def initialize(row)
@silenced = row['silence_count'] || 0
@suspended = row['suspend_count'] || 0
end
def total
@silenced + @suspended
end
end
include ActiveModel::Serialization
LOW_WATER_MARK = 0.9
attr_accessor :days_visited, :min_days_visited,
:num_topics_replied_to, :min_topics_replied_to,
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:topics_viewed, :min_topics_viewed,
:posts_read, :min_posts_read,
:topics_viewed_all_time, :min_topics_viewed_all_time,
:posts_read_all_time, :min_posts_read_all_time,
:num_flagged_posts, :max_flagged_posts,
:num_likes_given, :min_likes_given,
:num_likes_received, :min_likes_received,
:num_likes_received, :min_likes_received,
:num_likes_received_days, :min_likes_received_days,
:num_likes_received_users, :min_likes_received_users,
:trust_level_locked, :on_grace_period
def initialize(user)
@user = user
end
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def requirements_met?
return false if trust_level_locked
(!@user.suspended?) &&
(!@user.silenced?) &&
penalty_counts.total == 0 &&
days_visited >= min_days_visited &&
num_topics_replied_to >= min_topics_replied_to &&
topics_viewed >= min_topics_viewed &&
posts_read >= min_posts_read &&
num_flagged_posts <= max_flagged_posts &&
num_flagged_by_users <= max_flagged_by_users &&
topics_viewed_all_time >= min_topics_viewed_all_time &&
posts_read_all_time >= min_posts_read_all_time &&
num_likes_given >= min_likes_given &&
num_likes_received >= min_likes_received &&
num_likes_received_users >= min_likes_received_users &&
num_likes_received_days >= min_likes_received_days
end
def requirements_lost?
return false if trust_level_locked
@user.suspended? ||
@user.silenced? ||
penalty_counts.total > 0 ||
days_visited < min_days_visited * LOW_WATER_MARK ||
num_topics_replied_to < min_topics_replied_to * LOW_WATER_MARK ||
topics_viewed < min_topics_viewed * LOW_WATER_MARK ||
posts_read < min_posts_read * LOW_WATER_MARK ||
num_flagged_posts > max_flagged_posts ||
num_flagged_by_users > max_flagged_by_users ||
topics_viewed_all_time < min_topics_viewed_all_time ||
posts_read_all_time < min_posts_read_all_time ||
num_likes_given < min_likes_given * LOW_WATER_MARK ||
num_likes_received < min_likes_received * LOW_WATER_MARK ||
num_likes_received_users < min_likes_received_users * LOW_WATER_MARK ||
num_likes_received_days < min_likes_received_days * LOW_WATER_MARK
end
def time_period
SiteSetting.tl3_time_period
end
def trust_level_locked
!@user.manual_locked_trust_level.nil?
end
def on_grace_period
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@user.on_tl3_grace_period?
end
def days_visited
@user.user_visits.where("visited_at > ? and posts_read > 0", time_period.days.ago).count
end
def penalty_counts
args = {
user_id: @user.id,
silence_user: UserHistory.actions[:silence_user],
unsilence_user: UserHistory.actions[:unsilence_user],
suspend_user: UserHistory.actions[:suspend_user],
unsuspend_user: UserHistory.actions[:unsuspend_user]
}
sql = <<~SQL
SELECT SUM(
CASE
WHEN action = :silence_user THEN 1
WHEN action = :unsilence_user THEN -1
ELSE 0
END
) AS silence_count,
SUM(
CASE
WHEN action = :suspend_user THEN 1
WHEN action = :unsuspend_user THEN -1
ELSE 0
END
) AS suspend_count
FROM user_histories AS uh
WHERE uh.target_user_id = :user_id
AND uh.action IN (:silence_user, :unsilence_user, :suspend_user, :unsuspend_user)
SQL
PenaltyCounts.new(DB.query_hash(sql, args).first)
end
def min_days_visited
SiteSetting.tl3_requires_days_visited
end
def num_topics_replied_to
@user.posts.select('distinct topic_id').where('created_at > ? AND post_number > 1', time_period.days.ago).count
end
def min_topics_replied_to
SiteSetting.tl3_requires_topics_replied_to
end
def topics_viewed_query
TopicViewItem.where(user_id: @user.id).select('topic_id')
end
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def topics_viewed
topics_viewed_query.where('viewed_at > ?', time_period.days.ago).count
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end
def min_topics_viewed
[
(TrustLevel3Requirements.num_topics_in_time_period.to_i * (SiteSetting.tl3_requires_topics_viewed.to_f / 100.0)).round,
SiteSetting.tl3_requires_topics_viewed_cap
].min
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end
def posts_read
@user.user_visits.where('visited_at > ?', time_period.days.ago).pluck(:posts_read).sum
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end
def min_posts_read
[
(TrustLevel3Requirements.num_posts_in_time_period.to_i * (SiteSetting.tl3_requires_posts_read.to_f / 100.0)).round,
SiteSetting.tl3_requires_posts_read_cap
].min
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end
def topics_viewed_all_time
topics_viewed_query.count
end
def min_topics_viewed_all_time
SiteSetting.tl3_requires_topics_viewed_all_time
end
def posts_read_all_time
@user.user_visits.pluck(:posts_read).sum
end
def min_posts_read_all_time
SiteSetting.tl3_requires_posts_read_all_time
end
def num_flagged_posts
PostAction.with_deleted
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.where(post_id: flagged_post_ids)
.where.not(user_id: @user.id)
.where.not(agreed_at: nil)
.pluck(:post_id)
.uniq.count
end
def max_flagged_posts
SiteSetting.tl3_requires_max_flagged
end
def num_flagged_by_users
@_num_flagged_by_users ||= PostAction.with_deleted
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.where(post_id: flagged_post_ids)
.where.not(user_id: @user.id)
.where.not(agreed_at: nil)
.pluck(:user_id)
.uniq.count
end
def max_flagged_by_users
SiteSetting.tl3_requires_max_flagged
end
def num_likes_given
UserAction.where(user_id: @user.id, action_type: UserAction::LIKE).where('created_at > ?', time_period.days.ago).count
end
def min_likes_given
SiteSetting.tl3_requires_likes_given
end
def num_likes_received_query
UserAction.where(user_id: @user.id, action_type: UserAction::WAS_LIKED).where('created_at > ?', time_period.days.ago)
end
def num_likes_received
num_likes_received_query.count
end
def min_likes_received
SiteSetting.tl3_requires_likes_received
end
def num_likes_received_days
# don't do a COUNT(DISTINCT date(created_at)) here!
num_likes_received_query.pluck('date(created_at)').uniq.size
end
def min_likes_received_days
# Since min_likes_received / 3 can be greater than the number of days in time_period,
# cap this result to be less than time_period.
[(min_likes_received.to_f / 3.0).ceil, (0.75 * time_period.to_f).ceil].min
end
def num_likes_received_users
# don't do a COUNT(DISTINCT acting_user_id) here!
num_likes_received_query.pluck(:acting_user_id).uniq.size
end
def min_likes_received_users
(min_likes_received.to_f / 4.0).ceil
end
def self.clear_cache
$redis.del NUM_TOPICS_KEY
$redis.del NUM_POSTS_KEY
end
CACHE_DURATION = 1.day.seconds - 60
NUM_TOPICS_KEY = "tl3_num_topics"
NUM_POSTS_KEY = "tl3_num_posts"
def self.num_topics_in_time_period
$redis.get(NUM_TOPICS_KEY) || begin
count = Topic.listable_topics.visible.created_since(SiteSetting.tl3_time_period.days.ago).count
$redis.setex NUM_TOPICS_KEY, CACHE_DURATION, count
count
end
end
def self.num_posts_in_time_period
$redis.get(NUM_POSTS_KEY) || begin
count = Post.public_posts.visible.created_since(SiteSetting.tl3_time_period.days.ago).count
$redis.setex NUM_POSTS_KEY, CACHE_DURATION, count
count
end
end
def flagged_post_ids
@_flagged_post_ids ||= @user.posts
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.with_deleted
.where('created_at > ? AND (spam_count > 0 OR inappropriate_count > 0)', time_period.days.ago)
.pluck(:id)
end
end