Class: LabTech::Experiment

Inherits:
ActiveRecord::Base
  • Object
show all
Includes:
Scientist::Experiment
Defined in:
app/models/lab_tech/experiment.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.named(experiment_name_or_id) ⇒ Object

CLASS METHODS #####



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# File 'app/models/lab_tech/experiment.rb', line 44

def self.named(experiment_name_or_id)
  case experiment_name_or_id
  when String  ; exp = find_or_create_by(name: experiment_name_or_id)
  when Integer ; exp = find(experiment_name_or_id)
  end
  yield exp if block_given?
  exp
rescue ActiveRecord::RecordNotUnique
  retry
end

Instance Method Details

#comparator ⇒ Object

INSTANCE METHODS #####



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# File 'app/models/lab_tech/experiment.rb', line 59

def comparator
  @_scientist_comparator
end

#compare_mismatches(limit: nil, width: 100, io: $stdout, &block) ⇒ Object 



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# File 'app/models/lab_tech/experiment.rb', line 63

def compare_mismatches(limit: nil, width: 100, io: $stdout, &block)
  mismatches = results.mismatched.includes(:observations)
  return if mismatches.empty?
  mismatches = mismatches.limit(limit) if limit

  display_results mismatches, label: "Comparing results for #{name}:", io: io do |result|
    io.puts "Result ##{result.id}"
    result.compare_observations( io: io, &block )
  end
end

#diff(&block) ⇒ Object 



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# File 'app/models/lab_tech/experiment.rb', line 74

def diff(&block)
  @diff_with = block
end

#disable ⇒ Object 



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# File 'app/models/lab_tech/experiment.rb', line 78

def disable
  update_attribute :percent_enabled, 0
end

#enable(percent_enabled: 100) ⇒ Object 



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# File 'app/models/lab_tech/experiment.rb', line 88

def enable(percent_enabled: 100)
  update_attribute :percent_enabled, percent_enabled
end

#enabled? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/models/lab_tech/experiment.rb', line 82

def enabled?
  n = rand(100)
  fail "WTF, Ruby?" unless (0..99).cover?(n) # Paranoia? Indirect documentation? YOU DECIDE.
  n < percent_enabled
end

#name ⇒ Object

Oh, this is a fun one: apparently Scientist::Experiment#name is overriding the ActiveRecord attribute. Override it back.



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# File 'app/models/lab_tech/experiment.rb', line 94

def name         ; read_attribute  :name        ; end

#name=(value) ⇒ Object 



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# File 'app/models/lab_tech/experiment.rb', line 95

def name=(value) ; write_attribute :name, value ; end

#pct_correct ⇒ Object 



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# File 'app/models/lab_tech/experiment.rb', line 25

def pct_correct
  return "N/A" if total_count.zero?
  format_pct( equivalent_count, total_count )
end

#pct_enabled ⇒ Object 



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# File 'app/models/lab_tech/experiment.rb', line 21

def pct_enabled
  format_pct( percent_enabled )
end

#publish(scientist_result) ⇒ Object 



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# File 'app/models/lab_tech/experiment.rb', line 97

def publish(scientist_result)
  return if Rails.env.test? && !LabTech.publish_results_in_test_mode?
  LabTech::Result.record_a_science( self, scientist_result, diff_with: @diff_with )
end

#purge_data ⇒ Object

I don’t encourage the willy-nilly destruction of experimental results… …but sometimes you just need to start over.



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# File 'app/models/lab_tech/experiment.rb', line 104

def purge_data
  delete_and_count = ->(scope) {
    n0, n1 = 0, 0
    transaction do
      n0 = scope.count
      scope.delete_all
      n1 = scope.count
    end
    n0 - n1
  }

  n = delete_and_count.call( LabTech::Observation.where(result_id: self.result_ids) )
  m = delete_and_count.call( self.results )

  update(
    equivalent_count:  0,
    timed_out_count:   0,
    other_error_count: 0,
  )

  puts "Deleted #{m} result(s) and #{n} observations"
end

#run ⇒ Object 



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# File 'app/models/lab_tech/experiment.rb', line 127

def run(*)
  increment_run_count
  provide_default_cleaner
  super
end

#summarize_errors(limit: nil, width: 100, io: $stdout) ⇒ Object 



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# File 'app/models/lab_tech/experiment.rb', line 133

def summarize_errors(limit: nil, width: 100, io: $stdout)
  errors = results.other_error
  return if errors.empty?
  errors = errors.limit(limit) if limit

  display_results errors, label: "Summarizing errors for #{name}:", io: io do |result|
    io.puts "Result ##{result.id}"
    result.candidates.each do |observation|
      io.puts "  * " + observation.exception_class + ":  " + observation.exception_message
    end
  end
end

#summarize_results ⇒ Object 



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# File 'app/models/lab_tech/experiment.rb', line 146

def summarize_results
  puts "", summary, ""
end

#summary ⇒ Object 



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# File 'app/models/lab_tech/experiment.rb', line 150

def summary
  reload
  LabTech::Summary.new(self)
end

#total_count ⇒ Object 



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# File 'app/models/lab_tech/experiment.rb', line 30

def total_count
  equivalent_count + timed_out_count + other_error_count
end