Module: TheSortableTreeController::ExpandNode

Includes:
DefineVariablesMethod
Defined in:
app/controllers/the_sortable_tree_controller.rb

Instance Method Summary collapse

Methods included from DefineVariablesMethod

#the_define_common_variables

Instance Method Details

#expand_node ⇒ Object 



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# File 'app/controllers/the_sortable_tree_controller.rb', line 20

def expand_node
  id   = params[:id].to_i
  return render(nothing: true) unless id
  sort = (params[:tree_sort] == 'reversed') ? 'reversed_' : nil

  variable, collection, klass = self.the_define_common_variables
  variable  = self.instance_variable_set(variable, klass.find(id))
  @children = variable.children.send("#{sort}nested_set")

  return render(nothing: :true) if @children.count.zero?
  render layout: false, template: "#{collection}/expand_node"
end