Module: ActiveAdmin::SortableTree::ControllerActions

Defined in:
lib/active_admin/sortable_tree/controller_actions.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#sortable_options ⇒ Object

Returns the value of attribute sortable_options.


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# File 'lib/active_admin/sortable_tree/controller_actions.rb', line 4

def sortable_options
  @sortable_options
end

Instance Method Details

#sortable(options = {}) ⇒ Object 


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# File 'lib/active_admin/sortable_tree/controller_actions.rb', line 6

def sortable(options = {})
  options.reverse_merge! :sorting_attribute => :position,
                         :parent_method => :parent,
                         :children_method => :children,
                         :roots_method => :roots,
                         :tree => false,
                         :max_levels => 0,
                         :protect_root => false,
                         :collapsible => false, #hides +/- buttons
                         :start_collapsed => false,
                         :sortable => true

  # BAD BAD BAD FIXME: don't pollute original class
  @sortable_options = options

  # disable pagination
  config.paginate = false

  collection_action :sort, :method => :post do
    resource_name = ActiveAdmin::SortableTree::Compatibility.normalized_resource_name(active_admin_config.resource_name)


    errors = []
    if options[:tree]
     if params['id'].present?
        begin
          id        = params[:id].to_s
          parent_id = params[:parent_id].to_s
          prev_id   = params[:prev_id].to_s
          next_id   = params[:next_id].to_s

          if id.empty?
            return render plain: 'Nested set UI error: node id not defined', status: 500
          elsif parent_id.empty? && prev_id.empty? && next_id.empty?
            return render plain: 'Nested set UI error: not defined where to move node', status: 500
          end


          obj = resource_class.find(id)
          if prev_id.empty? && next_id.empty?
            obj.move_to_child_of resource_class.find(parent_id)
          elsif !prev_id.empty?
            obj.move_to_right_of resource_class.find(prev_id)
          elsif !next_id.empty?
            obj.move_to_left_of resource_class.find(next_id)
          end

          message = "<strong>#{I18n.t('admin.actions.nested_set.success')}!</strong>"
          render plain: message
        rescue Exception => e
          resource_class.model.rebuild!
          Rails.logger.error("#{e.class.name}: #{e.message}:\n#{e.backtrace.join("\n")}")
          render plain: "<strong>#{I18n.t('admin.actions.nested_set.error')}</strong>: #{e}", status: 500
        end
      else
          render plain: "<strong>#{I18n.t('admin.actions.nested_set.error')}</strong>: no id", status: 500
      end
    else
      records = []
      params[resource_name].each_pair do |resource, parent_resource|
        parent_resource = resource_class.find(parent_resource) rescue nil
        records << [resource_class.find(resource), parent_resource]
      end
      ActiveRecord::Base.transaction do
        records.each_with_index do |(record, parent_record), position|
          record.send "#{options[:sorting_attribute]}=", position
          errors << {record.id => record.errors} if !record.save
        end
      end
      if errors.empty?
        head 200
      else
        render json: errors, status: 422
      end
    end
  end
end