Files
codeocean/app/controllers/external_users_controller.rb
Sebastian Serth 768eb53f7a Reduce SQL queries for tag_statistics
Fixes CODEOCEAN-YP
2023-12-09 00:37:43 +01:00

99 lines
3.0 KiB
Ruby

# frozen_string_literal: true
class ExternalUsersController < ApplicationController
include TimeHelper
before_action :require_user!
def authorize!
authorize(@user || @users)
end
private :authorize!
def index
@search = ExternalUser.ransack(params[:q], {auth_object: current_user})
@users = @search.result.in_study_group_of(current_user).includes(:consumer).paginate(page: params[:page], per_page: per_page_param)
authorize!
end
def show
@user = ExternalUser.find(params[:id])
authorize!
end
def working_time_query(tag = nil)
"
SELECT contributor_id,
bar.exercise_id,
max(score) as maximum_score,
count(bar.id) as runs,
sum(working_time_new) AS working_time
FROM
(SELECT contributor_id,
exercise_id,
score,
id,
CASE
WHEN #{StatisticsHelper.working_time_larger_delta} THEN '0'
ELSE working_time
END AS working_time_new
FROM
(SELECT contributor_id,
exercise_id,
max(score) AS score,
id,
(created_at - lag(created_at) over (PARTITION BY contributor_id, exercise_id
ORDER BY created_at)) AS working_time
FROM submissions
WHERE #{ExternalUser.sanitize_sql(['contributor_id = ?', @user.id])}
AND contributor_type = 'ExternalUser'
#{current_user.admin? ? '' : "AND #{ExternalUser.sanitize_sql(['study_group_id IN (?)', current_user.study_groups.pluck(:id)])} AND cause = 'submit'"}
GROUP BY exercise_id,
contributor_id,
id
) AS foo
) AS bar
#{tag.nil? ? '' : " JOIN exercise_tags et ON et.exercise_id = bar.exercise_id AND #{ExternalUser.sanitize_sql(['et.tag_id = ?', tag])}"}
GROUP BY contributor_id,
bar.exercise_id;
"
end
def statistics
@user = ExternalUser.find(params[:id])
authorize!
if params[:tag].present?
tag = Tag.find(params[:tag])
authorize(tag, :show?)
end
statistics = {}
ApplicationRecord.connection.exec_query(working_time_query(tag&.id)).each do |tuple|
tuple = tuple.merge('working_time' => format_time_difference(tuple['working_time']))
statistics[tuple['exercise_id'].to_i] = tuple
end
render locals: {
statistics:,
}
end
def tag_statistics
@user = ExternalUser.find(params[:id])
authorize!
statistics = []
tags = ProxyExercise.new.get_user_knowledge_and_max_knowledge(@user, @user.participations.includes(:files, :tags, exercise_tags: [:tag]).uniq.compact)
tags[:user_topic_knowledge].each_pair do |tag, value|
statistics.append({key: tag.name.to_s, value: (100.0 / tags[:max_topic_knowledge][tag] * value).round,
id: tag.id})
end
statistics.sort_by! {|item| -item[:value] }
respond_to do |format|
format.json { render(json: statistics) }
end
end
end