125 lines
3.7 KiB
Ruby
125 lines
3.7 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
class ReviewableScore < ActiveRecord::Base
|
|
belongs_to :reviewable
|
|
belongs_to :user
|
|
belongs_to :reviewed_by, class_name: "User"
|
|
belongs_to :meta_topic, class_name: "Topic"
|
|
|
|
enum :status, { pending: 0, agreed: 1, disagreed: 2, ignored: 3 }
|
|
|
|
# To keep things simple the types correspond to `PostActionType` for backwards
|
|
# compatibility, but we can add extra reasons for scores.
|
|
def self.types
|
|
@types ||= PostActionType.flag_types.merge(PostActionType.score_types)
|
|
end
|
|
|
|
def self.type_title(type)
|
|
I18n.t("post_action_types.#{type}.title", default: nil) ||
|
|
I18n.t("reviewable_score_types.#{type}.title", default: nil) ||
|
|
PostActionType.names[types[type]]
|
|
end
|
|
|
|
# When extending post action flags, we need to call this method in order to
|
|
# get the latests flags.
|
|
def self.reload_types
|
|
@types = nil
|
|
types
|
|
end
|
|
|
|
def self.add_new_types(type_names)
|
|
next_id = types.values.max + 1
|
|
|
|
type_names.each_with_index { |name, idx| @types[name] = next_id + idx }
|
|
end
|
|
|
|
def self.score_transitions
|
|
{ approved: statuses[:agreed], rejected: statuses[:disagreed], ignored: statuses[:ignored] }
|
|
end
|
|
|
|
def score_type
|
|
Reviewable::Collection::Item.new(reviewable_score_type)
|
|
end
|
|
|
|
def took_action?
|
|
take_action_bonus > 0
|
|
end
|
|
|
|
def self.calculate_score(user, type_bonus, take_action_bonus)
|
|
score = user_flag_score(user) + type_bonus + take_action_bonus
|
|
score > 0 ? score : 0
|
|
end
|
|
|
|
# A user's flag score is:
|
|
# 1.0 + trust_level + user_accuracy_bonus
|
|
# (trust_level is 5 for staff)
|
|
def self.user_flag_score(user)
|
|
1.0 + (user.staff? ? 5.0 : user.trust_level.to_f) + user_accuracy_bonus(user)
|
|
end
|
|
|
|
# A user's accuracy bonus is:
|
|
# if 5 or less flags => 0.0
|
|
# if > 5 flags => (agreed flags / total flags) * 5.0
|
|
def self.user_accuracy_bonus(user)
|
|
user_stat = user&.user_stat
|
|
return 0.0 if user_stat.blank? || user.bot?
|
|
|
|
calc_user_accuracy_bonus(user_stat.flags_agreed, user_stat.flags_disagreed)
|
|
end
|
|
|
|
def self.calc_user_accuracy_bonus(agreed, disagreed)
|
|
agreed ||= 0
|
|
disagreed ||= 0
|
|
|
|
total = (agreed + disagreed).to_f
|
|
return 0.0 if total <= 5
|
|
accuracy_axis = 0.7
|
|
|
|
percent_correct = agreed / total
|
|
positive_accuracy = percent_correct >= accuracy_axis
|
|
|
|
bottom = positive_accuracy ? accuracy_axis : 0.0
|
|
top = positive_accuracy ? 1.0 : accuracy_axis
|
|
|
|
absolute_distance = positive_accuracy ? percent_correct - bottom : top - percent_correct
|
|
|
|
axis_distance_multiplier = 1.0 / (top - bottom)
|
|
positivity_multiplier = positive_accuracy ? 1.0 : -1.0
|
|
|
|
(
|
|
absolute_distance * axis_distance_multiplier * positivity_multiplier *
|
|
(Math.log(total, 4) * 5.0)
|
|
).round(2)
|
|
end
|
|
|
|
def reviewable_conversation
|
|
return if meta_topic.blank?
|
|
Reviewable::Conversation.new(meta_topic)
|
|
end
|
|
end
|
|
|
|
# == Schema Information
|
|
#
|
|
# Table name: reviewable_scores
|
|
#
|
|
# id :bigint not null, primary key
|
|
# reviewable_id :integer not null
|
|
# user_id :integer not null
|
|
# reviewable_score_type :integer not null
|
|
# status :integer not null
|
|
# score :float default(0.0), not null
|
|
# take_action_bonus :float default(0.0), not null
|
|
# reviewed_by_id :integer
|
|
# reviewed_at :datetime
|
|
# meta_topic_id :integer
|
|
# created_at :datetime not null
|
|
# updated_at :datetime not null
|
|
# reason :string
|
|
# user_accuracy_bonus :float default(0.0), not null
|
|
#
|
|
# Indexes
|
|
#
|
|
# index_reviewable_scores_on_reviewable_id (reviewable_id)
|
|
# index_reviewable_scores_on_user_id (user_id)
|
|
#
|