discourse/app/models/report.rb
2019-04-09 09:26:22 +02:00

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require_dependency 'topic_subtype'
class Report
# Change this line each time report format change
# and you want to ensure cache is reset
SCHEMA_VERSION = 3
attr_accessor :type, :data, :total, :prev30Days, :start_date,
:end_date, :category_id, :group_id, :filter,
:labels, :async, :prev_period, :facets, :limit, :processing, :average, :percent,
:higher_is_better, :icon, :modes, :category_filtering,
:group_filtering, :prev_data, :prev_start_date, :prev_end_date,
:dates_filtering, :error, :primary_color, :secondary_color, :filter_options
def self.default_days
30
end
def initialize(type)
@type = type
@start_date ||= Report.default_days.days.ago.utc.beginning_of_day
@end_date ||= Time.now.utc.end_of_day
@prev_end_date = @start_date
@average = false
@percent = false
@higher_is_better = true
@category_filtering = false
@group_filtering = false
@modes = [:table, :chart]
@prev_data = nil
@dates_filtering = true
@filter_options = nil
@filter = nil
tertiary = ColorScheme.hex_for_name('tertiary') || '0088cc'
@primary_color = rgba_color(tertiary)
@secondary_color = rgba_color(tertiary, 0.1)
end
def self.cache_key(report)
(+"reports:") <<
[
report.type,
report.category_id,
report.start_date.to_date.strftime("%Y%m%d"),
report.end_date.to_date.strftime("%Y%m%d"),
report.group_id,
report.filter,
report.facets,
report.limit,
SCHEMA_VERSION,
].compact.map(&:to_s).join(':')
end
def self.clear_cache(type = nil)
pattern = type ? "reports:#{type}:*" : "reports:*"
Discourse.cache.keys(pattern).each do |key|
Discourse.cache.redis.del(key)
end
end
def self.wrap_slow_query(timeout = 20000)
ActiveRecord::Base.connection.transaction do
# Set a statement timeout so we can't tie up the server
DB.exec "SET LOCAL statement_timeout = #{timeout}"
yield
end
end
def prev_start_date
self.start_date - (self.end_date - self.start_date)
end
def prev_end_date
self.start_date
end
def filter_values
if self.filter.present?
return self.filter.delete_prefix("[").delete_suffix("]").split("&").map { |param| param.split("=") }.to_h
end
{}
end
def as_json(options = nil)
description = I18n.t("reports.#{type}.description", default: "")
{
type: type,
title: I18n.t("reports.#{type}.title", default: nil),
xaxis: I18n.t("reports.#{type}.xaxis", default: nil),
yaxis: I18n.t("reports.#{type}.yaxis", default: nil),
description: description.presence ? description : nil,
data: data,
start_date: start_date&.iso8601,
end_date: end_date&.iso8601,
prev_data: self.prev_data,
prev_start_date: prev_start_date&.iso8601,
prev_end_date: prev_end_date&.iso8601,
category_id: category_id,
group_id: group_id,
filter: self.filter,
prev30Days: self.prev30Days,
dates_filtering: self.dates_filtering,
report_key: Report.cache_key(self),
primary_color: self.primary_color,
secondary_color: self.secondary_color,
labels: labels || [
{
type: :date,
property: :x,
title: I18n.t("reports.default.labels.day")
},
{
type: :number,
property: :y,
title: I18n.t("reports.default.labels.count")
},
],
processing: self.processing,
average: self.average,
percent: self.percent,
higher_is_better: self.higher_is_better,
category_filtering: self.category_filtering,
group_filtering: self.group_filtering,
filter_options: self.filter_options,
modes: self.modes,
}.tap do |json|
json[:icon] = self.icon if self.icon
json[:error] = self.error if self.error
json[:total] = self.total if self.total
json[:prev_period] = self.prev_period if self.prev_period
json[:prev30Days] = self.prev30Days if self.prev30Days
json[:limit] = self.limit if self.limit
if type == 'page_view_crawler_reqs'
json[:related_report] = Report.find('web_crawlers', start_date: start_date, end_date: end_date)&.as_json
end
end
end
def Report.add_report(name, &block)
singleton_class.instance_eval { define_method("report_#{name}", &block) }
end
def self._get(type, opts = nil)
opts ||= {}
# Load the report
report = Report.new(type)
report.start_date = opts[:start_date] if opts[:start_date]
report.end_date = opts[:end_date] if opts[:end_date]
report.category_id = opts[:category_id] if opts[:category_id]
report.group_id = opts[:group_id] if opts[:group_id]
report.filter = opts[:filter] if opts[:filter]
report.facets = opts[:facets] || [:total, :prev30Days]
report.limit = opts[:limit] if opts[:limit]
report.processing = false
report.average = opts[:average] if opts[:average]
report.percent = opts[:percent] if opts[:percent]
report.higher_is_better = opts[:higher_is_better] if opts[:higher_is_better]
report
end
def self.find_cached(type, opts = nil)
report = _get(type, opts)
Discourse.cache.read(cache_key(report))
end
def self.cache(report, duration)
Discourse.cache.write(cache_key(report), report.as_json, force: true, expires_in: duration)
end
def self.find(type, opts = nil)
opts ||= {}
begin
report = _get(type, opts)
report_method = :"report_#{type}"
begin
wrap_slow_query do
if respond_to?(report_method)
send(report_method, report)
elsif type =~ /_reqs$/
req_report(report, type.split(/_reqs$/)[0].to_sym)
else
return nil
end
end
rescue ActiveRecord::QueryCanceled, PG::QueryCanceled => e
report.error = :timeout
end
rescue Exception => e
# In test mode, don't swallow exceptions by default to help debug errors.
raise if Rails.env.test? && !opts[:wrap_exceptions_in_test]
# ensures that if anything unexpected prevents us from
# creating a report object we fail elegantly and log an error
if !report
Rails.logger.error("Couldnt create report `#{type}`: <#{e.class} #{e.message}>")
return nil
end
report.error = :exception
# given reports can be added by plugins we dont want dashboard failures
# on report computation, however we do want to log which report is provoking
# an error
Rails.logger.error("Error while computing report `#{report.type}`: #{e.message}\n#{e.backtrace.join("\n")}")
end
report
end
def self.req_report(report, filter = nil)
data =
if filter == :page_view_total
ApplicationRequest.where(req_type: [
ApplicationRequest.req_types.reject { |k, v| k =~ /mobile/ }.map { |k, v| v if k =~ /page_view/ }.compact
].flatten)
else
ApplicationRequest.where(req_type: ApplicationRequest.req_types[filter])
end
if filter == :page_view_total
report.icon = 'file'
end
report.data = []
data.where('date >= ? AND date <= ?', report.start_date, report.end_date)
.order(date: :asc)
.group(:date)
.sum(:count)
.each do |date, count|
report.data << { x: date, y: count }
end
report.total = data.sum(:count)
report.prev30Days = data.where(
'date >= ? AND date < ?',
(report.start_date - 31.days), report.start_date
).sum(:count)
end
def self.report_about(report, subject_class, report_method = :count_per_day)
basic_report_about report, subject_class, report_method, report.start_date, report.end_date
add_counts report, subject_class
end
def self.basic_report_about(report, subject_class, report_method, *args)
report.data = []
subject_class.send(report_method, *args).each do |date, count|
report.data << { x: date, y: count }
end
end
def self.add_prev_data(report, subject_class, report_method, *args)
if report.modes.include?(:chart) && report.facets.include?(:prev_period)
prev_data = subject_class.send(report_method, *args)
report.prev_data = prev_data.map { |k, v| { x: k, y: v } }
end
end
def self.add_counts(report, subject_class, query_column = 'created_at')
if report.facets.include?(:prev_period)
prev_data = subject_class
.where("#{query_column} >= ? and #{query_column} < ?",
report.prev_start_date,
report.prev_end_date)
report.prev_period = prev_data.count
end
if report.facets.include?(:total)
report.total = subject_class.count
end
if report.facets.include?(:prev30Days)
report.prev30Days = subject_class
.where("#{query_column} >= ? and #{query_column} < ?",
report.start_date - 30.days,
report.start_date).count
end
end
def self.post_action_report(report, post_action_type)
report.data = []
PostAction.count_per_day_for_type(post_action_type, category_id: report.category_id, start_date: report.start_date, end_date: report.end_date).each do |date, count|
report.data << { x: date, y: count }
end
countable = PostAction.unscoped.where(post_action_type_id: post_action_type)
countable = countable.joins(post: :topic).merge(Topic.in_category_and_subcategories(report.category_id)) if report.category_id
add_counts report, countable, 'post_actions.created_at'
end
def self.private_messages_report(report, topic_subtype)
report.icon = 'envelope'
subject = Topic.where('topics.user_id > 0')
basic_report_about report, subject, :private_message_topics_count_per_day, report.start_date, report.end_date, topic_subtype
subject = Topic.private_messages.where('topics.user_id > 0').with_subtype(topic_subtype)
add_counts report, subject, 'topics.created_at'
end
DiscourseEvent.on(:site_setting_saved) do |site_setting|
if ["backup_location", "s3_backup_bucket"].include?(site_setting.name.to_s)
clear_cache(:storage_stats)
end
end
def rgba_color(hex, opacity = 1)
if hex.size == 3
chars = hex.scan(/\w/)
hex = chars.zip(chars).flatten.join
end
if hex.size < 3
hex = hex.ljust(6, hex.last)
end
rgbs = hex_to_rgbs(hex)
"rgba(#{rgbs.join(',')},#{opacity})"
end
private
def hex_to_rgbs(hex_color)
hex_color = hex_color.gsub('#', '')
rgbs = hex_color.scan(/../)
rgbs
.map! { |color| color.hex }
.map! { |rgb| rgb.to_i }
end
end
require_relative "reports/visits"
require_relative "reports/visits_mobile"
require_relative "reports/consolidated_page_views"
require_relative "reports/top_ignored_users"
require_relative "reports/top_uploads"
require_relative "reports/moderators_activity"
require_relative "reports/signups"
require_relative "reports/storage_stats"
require_relative "reports/suspicious_logins"
require_relative "reports/new_contributors"
require_relative "reports/users_by_trust_level"
require_relative "reports/staff_logins"
require_relative "reports/users_by_type"
require_relative "reports/user_flagging_ratio"
require_relative "reports/post_edits"
require_relative "reports/daily_engaged_users"
require_relative "reports/flags_status"
require_relative "reports/trending_search"
require_relative "reports/top_referrers"
require_relative "reports/top_traffic_sources"
require_relative "reports/top_referred_topics"
require_relative "reports/notify_user_private_messages"
require_relative "reports/user_to_user_private_messages"
require_relative "reports/user_to_user_private_messages_with_replies"
require_relative "reports/system_private_messages"
require_relative "reports/moderator_warning_private_messages"
require_relative "reports/notify_moderators_private_messages"
require_relative "reports/flags"
require_relative "reports/likes"
require_relative "reports/bookmarks"
require_relative "reports/dau_by_mau"
require_relative "reports/profile_views"
require_relative "reports/topics"
require_relative "reports/posts"
require_relative "reports/time_to_first_response"
require_relative "reports/topics_with_no_response"
require_relative "reports/emails"
require_relative "reports/web_crawlers"