nodes_controller.rb

class Releaf::Content::NodesController < Releaf::ActionController
  respond_to :json, only: [:create, :update, :copy, :move]

  def features
    super - [:create_another, :search]
  end

  def generate_url
    tmp_resource = prepare_resource
    tmp_resource.name = params[:name]
    tmp_resource.reasign_slug

    render plain: tmp_resource.slug
  end

  def content_type_dialog
    @content_types = resource_class.valid_node_content_classes(params[:parent_id]).sort do |a, b|
      I18n.t(a.name.underscore, scope: 'admin.content_types') <=> I18n.t(b.name.underscore, scope: 'admin.content_types')
    end
  end

  def copy_dialog
    copy_move_dialog_common
  end

  def move_dialog
    copy_move_dialog_common
  end

  def copy
    copy_move_common do |resource|
      resource.copy params[:new_parent_id]
    end
  end

  def move
    copy_move_common do |resource|
      resource.move params[:new_parent_id]
    end
  end

  # override base_controller method for adding content tree ancestors
  # to breadcrumbs
  def add_resource_breadcrumb(resource)
    ancestor_nodes(resource).each do |node|
      @breadcrumbs << { name: node, url: url_for( action: :edit, id: node.id ) }
    end
    super
  end

  def ancestor_nodes(resource)
    if resource.persisted?
      resource.ancestors.reorder(:depth)
    elsif resource.new_record? && resource.parent
      resource.parent.ancestors.reorder(:depth) + [resource.parent]
    else
      []
    end
  end

  def self.resource_class
    # find first key in content resources config that has this class as controller
    model_class_name = Releaf::Content.resources.find{|_model_name, options| options[:controller] == name }.first
    model_class_name.constantize
  end

  protected

  def prepare_index
    @collection = resource_class.all
  end

  private

  def copy_move_common
    @resource = resource_class.find(params[:id])

    if params[:new_parent_id].nil?
      @resource.errors.add(:base, 'parent not selected')
      respond_with(@resource)
    else
      begin
        @resource = yield(@resource)
      rescue ActiveRecord::RecordInvalid => e
        respond_with(e.record)
      else
        resource_class.updated
        respond_with(@resource, redirect: true, location: url_for(action: :index))
      end
    end
  end

  def action_responders
    super.merge(
      copy: Releaf::Responders::AfterSaveResponder,
      move: Releaf::Responders::AfterSaveResponder
    )
  end

  def copy_move_dialog_common
    @resource = resource_class.find params[:id]
    @collection = resource_class.all
  end

  def prepare_resource
    if params[:id]
      resource_class.find(params[:id])
    elsif params[:parent_id].present?
      parent = resource_class.find(params[:parent_id])
      parent.children.new
    else
      resource_class.new
    end
  end

  def new_resource
    super
    @resource.content_type = node_content_class.name
    @resource.parent_id = params[:parent_id]
    @resource.item_position ||= resource_class.children_max_item_position(@resource.parent) + 1

    if node_content_class < ActiveRecord::Base
      @resource.build_content
      @resource.content_id_will_change!
    end
  end

  # Returns valid content type class
  def node_content_class
    raise ArgumentError, "invalid content_type" unless ActsAsNode.classes.include? params[:content_type]
    params[:content_type].constantize
  end

  def permitted_params
    list = super
    list += [{content_attributes: permitted_content_attributes}]
    list -= %w[content_type]
    list
  end

  def permitted_content_attributes
    @resource.content_class.acts_as_node_params if @resource.content_class.respond_to? :acts_as_node_params
  end
end