awesome_nested_set：选择不工作的轨道

Question

我已经尝试了所有我能想到的方法，但它们似乎都没有起作用：

f.select :destination_group_id, options_for_select(nested_set_options(DestinationGroup) {|i| "#{'-' * i.level} #{i.name}" }, :selected => @purchase.destination_group_id)
select_tag 'purchases[destination_group_id]', options_for_select(nested_set_options(DestinationGroup) {|i| "#{'-' * i.level} #{i.name}" }, :selected => @purchase.destination_group_id)
f.select :destination_group_id, options_for_select(nested_set_options(DestinationGroup) {|i| "#{'-' * i.level} #{i.name}" }, :selected => @purchase)
f.select :destination_group_id, options_for_select(nested_set_options(DestinationGroup) {|i| "#{'-' * i.level} #{i.name}" }), :selected => @purchase.destination_group_id
f.select :destination_group_id, nested_set_options(DestinationGroup) {|i| "#{'-' * i.level} #{i.name}" }), :selected => @purchase.destination_group_id

和我能想到的几乎所有其他方式

如何让它在与编辑匹配的选项中选择destination_group_id值？

Answer 1

我会删除这个，因为我现在觉得很愚蠢，但我会把它留给遇到同样问题的任何人。

我将值存储为整数，而select正在查找字符串。