Module: TableSync::EventActions

Included in:
ConfigDecorator
Defined in:
lib/table_sync/event_actions.rb

Defined Under Namespace

Modules: DataWrapper

Instance Method Summary collapse

Instance Method Details

#destroy(data) ⇒ Object 



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# File 'lib/table_sync/event_actions.rb', line 17

def destroy(data)
  attributes = data.first || {}
  target_attributes = attributes.select { |key, _value| target_keys.include?(key) }
  prevent_incomplete_event!(target_attributes)

  with_wrapping(DataWrapper::Destroy.new(attributes)) do
    process_destroy(attributes, target_attributes)
  end
end

#expected_update_result?(query_results) ⇒ Boolean 



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# File 'lib/table_sync/event_actions.rb', line 86

def expected_update_result?(query_results)
  query_results.uniq { |d| d.slice(*target_keys) }.size == query_results.size
end

#prevent_incomplete_event!(attributes) ⇒ Object 



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# File 'lib/table_sync/event_actions.rb', line 90

def prevent_incomplete_event!(attributes)
  unless target_keys.all?(&attributes.keys.method(:include?))
    raise TableSync::UnprovidedEventTargetKeysError.new(target_keys, attributes)
  end
end

#process_destroy(attributes, target_attributes) ⇒ Object 



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# File 'lib/table_sync/event_actions.rb', line 56

def process_destroy(attributes, target_attributes)
  model.transaction do
    @config.callback_registry.get_callbacks(kind: :before_commit, event: :destroy).each do |cb|
      cb[attributes]
    end

    if on_destroy
      results = on_destroy.call(attributes: attributes, target_keys: target_keys)
    else
      results = model.destroy(target_attributes)
      return if results.empty?
      raise TableSync::DestroyError.new(target_attributes) if results.size != 1
    end

    @config.model.after_commit do
      @config.callback_registry.get_callbacks(kind: :after_commit, event: :destroy).each do |cb|
        cb[results]
      end
    end
  end
end

#process_upsert(data) ⇒ Object

rubocop:disable Metrics/MethodLength



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# File 'lib/table_sync/event_actions.rb', line 27

def process_upsert(data) # rubocop:disable Metrics/MethodLength
  model.transaction do
    args = {
      data: data,
      target_keys: target_keys,
      version_key: version_key,
      first_sync_time_key: first_sync_time_key,
      default_values: default_values,
    }

    @config.callback_registry.get_callbacks(kind: :before_commit, event: :update).each do |cb|
      cb[data.values.flatten]
    end

    results = data.reduce([]) do |upserts, (part_model, part_data)|
      upserts + part_model.upsert(**args, data: part_data)
    end

    return if results.empty?
    raise TableSync::UpsertError.new(**args) unless expected_update_result?(results)

    @config.model.after_commit do
      @config.callback_registry.get_callbacks(kind: :after_commit, event: :update).each do |cb|
        cb[results]
      end
    end
  end
end

#update(data) ⇒ Object 



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# File 'lib/table_sync/event_actions.rb', line 5

def update(data)
  data.each_value do |attribute_set|
    attribute_set.each do |attributes|
      prevent_incomplete_event!(attributes)
    end
  end

  with_wrapping(DataWrapper::Update.new(data)) do
    process_upsert(data)
  end
end

#with_wrapping(data = {}, &block) ⇒ Object 



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# File 'lib/table_sync/event_actions.rb', line 78

def with_wrapping(data = {}, &block)
  if @config.wrap_receiving
    @config.wrap_receiving.call(data, block)
  else
    yield
  end
end