Module: Featurevisor::Events

Defined in:
lib/featurevisor/events.rb

Overview

Events module for generating event parameters

Class Method Summary collapse

Class Method Details

.get_params_for_datafile_set_event(previous_reader, new_reader) ⇒ Hash

Get parameters for datafile set event

Parameters:

Returns:

  • (Hash) —

    Event parameters



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# File 'lib/featurevisor/events.rb', line 27

def self.get_params_for_datafile_set_event(previous_reader, new_reader)
  previous_revision = previous_reader.get_revision
  previous_feature_keys = previous_reader.get_feature_keys

  new_revision = new_reader.get_revision
  new_feature_keys = new_reader.get_feature_keys

  # results
  removed_features = []
  changed_features = []
  added_features = []

  # checking against existing datafile
  previous_feature_keys.each do |previous_feature_key|
    if !new_feature_keys.include?(previous_feature_key)
      # feature was removed in new datafile
      removed_features << previous_feature_key
      next
    end

    # feature exists in both datafiles, check if it was changed
    previous_feature = previous_reader.get_feature(previous_feature_key)
    new_feature = new_reader.get_feature(previous_feature_key)

    if previous_feature && new_feature && previous_feature[:hash] != new_feature[:hash]
      # feature was changed in new datafile
      changed_features << previous_feature_key
    end
  end

  # checking against new datafile
  new_feature_keys.each do |new_feature_key|
    if !previous_feature_keys.include?(new_feature_key)
      # feature was added in new datafile
      added_features << new_feature_key
    end
  end

  # combine all affected feature keys
  all_affected_features = (removed_features + changed_features + added_features).uniq

  {
    revision: new_revision,
    previous_revision: previous_revision,
    revision_changed: previous_revision != new_revision,
    features: all_affected_features
  }
end

.get_params_for_sticky_set_event(previous_sticky = {}, new_sticky = {}, replace = false) ⇒ Hash

Get parameters for sticky set event

Parameters:

  • previous_sticky (Hash) (defaults to: {}) —

    Previous sticky features

  • new_sticky (Hash) (defaults to: {}) —

    New sticky features

  • replace (Boolean) (defaults to: false) —

    Whether features were replaced

Returns:

  • (Hash) —

    Event parameters



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# File 'lib/featurevisor/events.rb', line 11

def self.get_params_for_sticky_set_event(previous_sticky = {}, new_sticky = {}, replace = false)
  keys_before = previous_sticky.keys
  keys_after = new_sticky.keys

  all_keys = (keys_before + keys_after).uniq

  {
    features: all_keys,
    replaced: replace
  }
end