ruby on rails - Has_one Association breaking in Edit -


i have nested form using cocoon gem gests 5 classes deep. belongs_to , has_many except 1 2nd nested class has_one , belongs_to association. whenever edit it, gets deleted , recreates instance (not want) ideas?

class firmwarescontroller < applicationcontroller      def index         @firmwares = firmware.all     end      def new         @firmware = firmware.new     end      def edit         @firmware = firmware.find(params[:id])     end end   class setting < activerecord::base   belongs_to :menu_item   has_many :selections, dependent: :destroy   has_many :dependencies   attr_accessible :kind, :name, :placement, :selections_attributes   accepts_nested_attributes_for :selections, reject_if: :all_blank, allow_destroy: true   validates_presence_of :kind end  class menuitem < activerecord::base   belongs_to :menu   belongs_to :dependency   has_one :setting, dependent: :destroy   attr_accessible :dependency_id, :menu_for, :name, :placement, :setting_attributes   accepts_nested_attributes_for :setting, reject_if: :all_blank, allow_destroy: true   validates_presence_of :name  end

_menu_items.html.haml

.row-fluid         .input-prepend                   = f.input :name, label: "menu item name"         .input-append             = f.input :placement, label: "order in menu (x.y)", as: :string     = f.simple_fields_for :setting |settings_form|         = render 'setting_fields', f: settings_form     %p           = link_to_add_association "has setting?", f, :setting, class: "btn btn-primary btn-small add_setting_link"         = link_to_remove_association 'remove menu item', f, class: "btn btn-danger btn-small remove_menu_item"

_setting_fields.html.haml 

.row-fluid     .input-prepend         = f.input :kind, label: "type", collection: setting_kinds, input_html: {class: "setting_type"}     .input-append         = link_to_remove_association 'remove setting', f, class: 'btn btn-danger btn-small remove_setting_link' .setting_selection{style: "display: none;"}     = f.simple_fields_for :selections |selections_form|         = render 'selection_fields', f: selections_form     %p= link_to_add_association 'add selection option', f, :selections, class: "btn btn-primary btn-small"

i assume has_one association you're referring has_one :setting in menuitem. if so, might try adding update_only: true accepts_nested_attributes_for :setting options. from documentation (emphasis mine):

by default :update_only option false , nested attributes used update existing record if include record's :id value. otherwise new record instantiated , used replace existing one. if :update_only option true, nested attributes used update record’s attributes always, regardless of whether :id present.


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