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 = active_admin_config.resource_name.to_s.underscore.parameterize('_')

    records = params[resource_name].inject({}) do |res, (resource, parent_resource)|
      res[resource_class.find(resource)] = resource_class.find(parent_resource) rescue nil
      res
    end
    errors = []
    ActiveRecord::Base.transaction do
      records.each_with_index do |(record, parent_record), position|
        record.send "#{options[:sorting_attribute]}=", position
        if options[:tree]
          record.send "#{options[:parent_method]}=", parent_record
        end
        errors << {record.id => record.errors} if !record.save
      end
    end
    if errors.empty?
      head 200
    else
      render json: errors, status: 422
    end
  end

end