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vanity/lib/vanity/adapters/mongodb_adapter.rb
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module Vanity | |
module Adapters | |
class << self | |
# Creates new connection to MongoDB and returns MongoAdapter. | |
# | |
# @since 1.4.0 | |
def mongo_connection(spec) | |
require "mongo" | |
MongodbAdapter.new(spec) | |
end | |
alias mongodb_connection mongo_connection | |
end | |
# MongoDB adapter. | |
# | |
# @since 1.4.0 | |
class MongodbAdapter < AbstractAdapter | |
attr_reader :mongo | |
def initialize(options) # rubocop:todo Lint/MissingSuper | |
@options = options.clone | |
@options[:database] ||= (@options[:path] && @options[:path].split("/")[1]) || "vanity" | |
connect! | |
end | |
def active? | |
!!@mongo | |
end | |
def disconnect! | |
if @mongo | |
begin | |
@mongo.close | |
rescue StandardError | |
nil | |
end | |
end | |
@metrics, @experiments = nil | |
@mongo = nil | |
end | |
def reconnect! | |
disconnect! | |
connect! | |
end | |
def connect! | |
Mongo::Logger.logger = Vanity.logger | |
setup_connection(@options) | |
@metrics = @mongo["vanity.metrics"] | |
@metrics.create unless @mongo.database.collection_names.include?("vanity.metrics") | |
@experiments = @mongo["vanity.experiments"] | |
@experiments.create unless @mongo.database.collection_names.include?("vanity.experiments") | |
@participants = @mongo["vanity.participants"] | |
@participants.create unless @mongo.database.collection_names.include?("vanity.participants") | |
@participants.indexes.create_many( | |
{ key: { experiment: 1, identity: 1 }, unique: true }, | |
{ key: { experiment: 1, seen: 1 } }, | |
{ key: { experiment: 1, converted: 1 } } | |
) | |
@mongo | |
end | |
def to_s | |
userinfo = @options.values_at(:username, :password).join(":") if @options[:username] | |
URI::Generic.build(scheme: "mongodb", userinfo: userinfo, host: (@mongo.host || @options[:host]), port: (@mongo.port || @options[:port]), path: "/#{@options[:database]}").to_s | |
end | |
def flushdb | |
@metrics.drop | |
@experiments.drop | |
@participants.drop | |
end | |
# -- Metrics -- | |
def get_metric_last_update_at(metric) | |
record = @metrics.find(_id: metric).limit(1).first | |
record && record["last_update_at"] | |
end | |
def metric_track(metric, timestamp, _identity, values) | |
inc = {} | |
values.each_with_index do |v, i| | |
inc["data.#{timestamp.to_date}.#{i}"] = v | |
end | |
@metrics.find(_id: metric).find_one_and_replace( | |
{ | |
"$inc" => inc, | |
"$set" => { last_update_at: Time.now }, | |
}, | |
upsert: true | |
) | |
end | |
def metric_values(metric, from, to) | |
record = @metrics.find(_id: metric).limit(1).first | |
data = (record && record["data"]) || {} | |
(from.to_date..to.to_date).map { |date| (data[date.to_s] || {}).values } | |
end | |
def destroy_metric(metric) | |
@metrics.find(_id: metric).delete_one | |
end | |
# -- Experiments -- | |
def experiment_persisted?(experiment) | |
!!@experiments.find(_id: experiment).limit(1).first | |
end | |
def set_experiment_created_at(experiment, time) | |
# @experiments.insert_one(:_id=>experiment, :created_at=>time) | |
@experiments.find(_id: experiment).find_one_and_replace( | |
{ | |
"$setOnInsert" => { created_at: time }, | |
}, | |
upsert: true | |
) | |
end | |
def get_experiment_created_at(experiment) | |
record = @experiments.find(_id: experiment).limit(1).projection(created_at: 1).first | |
record && record["created_at"] | |
# Returns nil if either the record or the field doesn't exist | |
end | |
def set_experiment_completed_at(experiment, time) | |
@experiments.find(_id: experiment).find_one_and_replace( | |
{ | |
"$set" => { completed_at: time }, | |
}, | |
upsert: true | |
) | |
end | |
def get_experiment_completed_at(experiment) | |
record = @experiments.find(_id: experiment).limit(1).projection(completed_at: 1).first | |
record && record["completed_at"] | |
end | |
def is_experiment_completed?(experiment) # rubocop:todo Naming/PredicateName | |
!!@experiments.find(_id: experiment, completed_at: { "$exists" => true }).limit(1).first | |
end | |
def set_experiment_enabled(experiment, enabled) | |
@experiments.find(_id: experiment).find_one_and_replace( | |
{ | |
"$set" => { enabled: enabled }, | |
}, | |
upsert: true | |
) | |
end | |
def is_experiment_enabled?(experiment) # rubocop:todo Naming/PredicateName | |
record = @experiments.find(_id: experiment).limit(1).projection(enabled: 1).first | |
if Vanity.configuration.experiments_start_enabled | |
record.nil? || record["enabled"] != false | |
else | |
record && record["enabled"] == true | |
end | |
end | |
def ab_counts(experiment, alternative) | |
record = @experiments.find(_id: experiment).limit(1).projection(conversions: 1).first | |
conversions = record && record["conversions"] | |
{ participants: @participants.find({ experiment: experiment, seen: alternative }).count, | |
converted: @participants.find({ experiment: experiment, converted: alternative }).count, | |
conversions: (conversions && conversions[alternative.to_s]) || 0 } | |
end | |
def ab_show(experiment, identity, alternative) | |
@participants.find(experiment: experiment, identity: identity).find_one_and_replace( | |
{ | |
"$set" => { show: alternative }, | |
}, | |
upsert: true | |
) | |
end | |
def ab_showing(experiment, identity) | |
participant = @participants.find(experiment: experiment, identity: identity).limit(1).projection(show: 1).first | |
participant && participant["show"] | |
end | |
def ab_not_showing(experiment, identity) | |
@participants.find(experiment: experiment, identity: identity).find_one_and_replace( | |
{ | |
"$unset" => { show: "" }, | |
}, | |
upsert: true | |
) | |
end | |
def ab_add_participant(experiment, alternative, identity) | |
@participants.find(experiment: experiment, identity: identity).find_one_and_replace( | |
{ | |
"$push" => { seen: alternative }, | |
}, | |
upsert: true | |
) | |
end | |
# Determines if a participant already has seen this alternative in this experiment. | |
def ab_seen(experiment, identity, alternative_or_id) | |
with_ab_seen_deprecation(experiment, identity, alternative_or_id) do |expt, ident, alt_id| | |
participant = @participants.find(experiment: expt, identity: ident).limit(1).projection(seen: 1).first | |
participant && participant["seen"].first == alt_id | |
end | |
end | |
# Returns the participant's seen alternative in this experiment, if it exists | |
def ab_assigned(experiment, identity) | |
participant = @participants.find(experiment: experiment, identity: identity).limit(1).projection(seen: 1).first | |
participant && participant["seen"].first | |
end | |
def ab_add_conversion(experiment, alternative, identity, count = 1, implicit = false) | |
if implicit | |
@participants.find(experiment: experiment, identity: identity).find_one_and_replace( | |
{ | |
"$push" => { seen: alternative }, | |
}, | |
upsert: true | |
) | |
else | |
participating = @participants.find(experiment: experiment, identity: identity, seen: alternative).limit(1).first | |
end | |
if implicit || participating | |
@participants.find(experiment: experiment, identity: identity).find_one_and_replace( | |
{ | |
"$push" => { converted: alternative }, | |
}, | |
upsert: true | |
) | |
end | |
@experiments.find(_id: experiment).find_one_and_replace( | |
{ | |
"$inc" => { "conversions.#{alternative}" => count }, | |
}, | |
upsert: true | |
) | |
end | |
def ab_get_outcome(experiment) | |
experiment = @experiments.find(_id: experiment).limit(1).projection(outcome: 1).first | |
experiment && experiment["outcome"] | |
end | |
def ab_set_outcome(experiment, alternative = 0) | |
@experiments.find(_id: experiment).find_one_and_replace( | |
{ | |
"$set" => { outcome: alternative }, | |
}, | |
upsert: true | |
) | |
end | |
def destroy_experiment(experiment) | |
@experiments.find(_id: experiment).delete_one | |
@participants.find(experiment: experiment).delete_many | |
end | |
private | |
def setup_connection(options) | |
options[:user] = options[:username] if options[:username] | |
hosts = options.delete(:hosts) || [options.delete(:host)] | |
hosts.map! { |host| "#{host}:#{options.delete(:port)}" } | |
@mongo = Mongo::Client.new( | |
hosts, | |
options | |
) | |
end | |
end | |
end | |
end |