Module: ModelUpdates::ModelExtensions::ClassMethods

Defined in:
lib/model_updates/model_extensions.rb

Instance Method Summary collapse

Instance Method Details

#model_updates_broadcast_attributes(args) ⇒ Object 



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# File 'lib/model_updates/model_extensions.rb', line 11

def model_updates_broadcast_attributes(args)
  model_updates_data[:attributes] = args.fetch(:attributes)

  # Need to remember what changes before callbacks, since it might get changed by gems like AwesomeNestedSet before after_commit is called
  before_save on: :update do
    attribute_changes = {}

    args.fetch(:attributes).each do |attribute_name|
      method_changed = "#{attribute_name}_changed?"
      next if respond_to?(method_changed) && !__send__(method_changed)
      attribute_changes[attribute_name] = __send__(attribute_name)
    end

    @_model_updates_changes = attribute_changes
  end

  after_commit on: :update do |model|
    attribute_changes = @_model_updates_changes
    @_model_updates_changes = nil

    if attribute_changes.any?
      ModelUpdates::UpdateChannel.broadcast_to(
        model,
        id: id,
        model: model.class.name,
        changes: attribute_changes
      )
    end
  end
end

#model_updates_broadcast_created ⇒ Object 



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# File 'lib/model_updates/model_extensions.rb', line 42

def model_updates_broadcast_created
  after_commit on: :create do |model|
    channel_name = "ModelUpdatesCreate#{model.class.name}"

    attributes = {}
    model.class.model_updates_data[:attributes].each do |attribute_name|
      attributes[attribute_name] = __send__(attribute_name)
    end

    ActionCable.server.broadcast(
      channel_name,
      id: id,
      attributes: attributes
    )
  end
end

#model_updates_broadcast_destroyed ⇒ Object 



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# File 'lib/model_updates/model_extensions.rb', line 59

def model_updates_broadcast_destroyed
  after_commit on: :destroy do |model|
    attributes = {}
    model.class.model_updates_data[:attributes].each do |attribute_name|
      attributes[attribute_name] = __send__(attribute_name)
    end

    ModelUpdates::DestroyChannel.broadcast_to(
      model,
      id: id,
      model: model.class.name,
      attributes: attributes
    )
  end
end

#model_updates_data ⇒ Object 



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# File 'lib/model_updates/model_extensions.rb', line 7

def model_updates_data
  @_model_updates ||= {}
end