Class: Experimental::Loader

Inherits:
Object
  • Object
show all
Defined in:
lib/experimental/loader.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Loader

Returns a new instance of Loader.



5
6
7
 
# File 'lib/experimental/loader.rb', line 5

def initialize(options = {})
  @logger = options[:logger] || Logger.new('/dev/null')
end

Instance Attribute Details

#logger ⇒ Object (readonly)

Returns the value of attribute logger.



9
10
11
 
# File 'lib/experimental/loader.rb', line 9

def logger
  @logger
end

Instance Method Details

#sync ⇒ Object 



11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
 
# File 'lib/experimental/loader.rb', line 11

def sync
  logger.info "Synchronizing experiments..."

  Experimental::Experiment.transaction do
    active = Experimental.experiment_data.map do |name, attributes|
      experiment = Experimental::Experiment.find_or_initialize_by_name(name)

      unstarted = attributes.delete('unstarted')
      defaults = {'num_buckets' => nil, 'notes' => nil, 'population' => nil}
      experiment.assign_attributes(defaults.merge(attributes))
      if unstarted
        experiment.start_date = nil
      else
        experiment.start_date ||= Time.current
      end

      logger.info "  * #{experiment.id ? 'updating' : 'creating'} #{name}"
      experiment.tap(&:save!)
    end

    scope = Experimental::Experiment.in_code
    scope = scope.where('id NOT IN (?)', active.map(&:id)) unless active.empty?
    scope.find_each do |experiment|
      next if experiment.admin?
      logger.info "  * removing #{experiment.name}"
      experiment.remove
    end
  end

  logger.info "Done."
end