Class: FixtureFarm::FixtureRecorder

Inherits:
Object
  • Object
show all
Defined in:
lib/fixture_farm/fixture_recorder.rb

Constant Summary collapse

STORE_PATH = 
Rails.root.join('tmp', 'fixture_farm_store.json')

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(fixture_name_prefix, new_models = []) ⇒ FixtureRecorder

Returns a new instance of FixtureRecorder.



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# File 'lib/fixture_farm/fixture_recorder.rb', line 7

def initialize(fixture_name_prefix, new_models = [])
  @fixture_name_prefix = fixture_name_prefix
  @new_models = new_models
  @initial_now = Time.zone.now
end

Class Method Details

.recording_session_in_progress? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fixture_farm/fixture_recorder.rb', line 36

def self.recording_session_in_progress?
  File.exist?(STORE_PATH)
end

.resume_recording_session ⇒ Object 



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# File 'lib/fixture_farm/fixture_recorder.rb', line 13

def self.resume_recording_session
  start_recording_session! unless recording_session_in_progress?

  recording_session = JSON.load_file(STORE_PATH, permitted_classes: [ActiveSupport::HashWithIndifferentAccess])

  new_models = recording_session['new_models'].map do |(class_name, id)|
    class_name.constantize.find(id)
  end

  new(recording_session['fixture_name_prefix'], new_models)
end

.start_recording_session!(fixture_name_prefix) ⇒ Object 



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# File 'lib/fixture_farm/fixture_recorder.rb', line 25

def self.start_recording_session!(fixture_name_prefix)
  File.write(STORE_PATH, {
    fixture_name_prefix: fixture_name_prefix,
    new_models: []
  }.to_json)
end

.stop_recording_session! ⇒ Object 



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# File 'lib/fixture_farm/fixture_recorder.rb', line 32

def self.stop_recording_session!
  FileUtils.rm_f(STORE_PATH)
end

Instance Method Details

#record_new_fixtures ⇒ Object 



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# File 'lib/fixture_farm/fixture_recorder.rb', line 40

def record_new_fixtures
  stopped = false

  subscriber = ActiveSupport::Notifications.subscribe 'sql.active_record' do |event|
    payload = event.payload

    next unless payload[:name] =~ /([:\w]+) Create/

    new_fixture_class_name = Regexp.last_match(1)

    payload[:connection].transaction_manager.current_transaction.records.reject(&:persisted?).reject(&:destroyed?).each do |model_instance|
      next if new_fixture_class_name != model_instance.class.name

      @new_models << model_instance
    end
  end

  yield lambda {
    ActiveSupport::Notifications.unsubscribe(subscriber)
    stopped = true
    reload_models
    update_fixture_files(named_new_fixtures)
  }

  unless stopped
    reload_models
    update_fixture_files(named_new_fixtures)
  end
ensure
  ActiveSupport::Notifications.unsubscribe(subscriber)
end

#update_recording_session ⇒ Object 



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# File 'lib/fixture_farm/fixture_recorder.rb', line 72

def update_recording_session
  return unless FixtureRecorder.recording_session_in_progress?

  File.write(STORE_PATH, {
    fixture_name_prefix: @fixture_name_prefix,
    new_models: @new_models.map { |model| [model.class.name, model.id] }
  }.to_json)
end