這是維斯塔版本中的錯誤還是我做錯了

Question

我想我可能在維斯塔爾版本中發現了一個錯誤（http://github.com/laserlemon/vestal_versions） - 好像revert_to的行爲取決於我過去做過的回覆與同一個對象。這裏有一個例子：

>> a = Annotation.find(1384) 
=> #<Annotation id: 1384, body: "Just hanging out -- \"playing possum\" -- at the stor...", last_updated_by_id: 3, created_by_id: 3, song_id: 30, deleted_at: nil, created_at: "2009-09-06 01:56:55", updated_at: "2009-10-27 22:02:35", referent: "in the spot playing possum\nDebating my destination,...", vote_score: 0> 
>> a.revert_to(9) 
=> 9 
>> a.body 
=> #<RDiscount:0x21cf7bc @filter_styles=true, @smart=true, @fold_lines=nil, @filter_html=nil, @text="Just hanging out -- \"playing possum\" -- at the store, lacing up the new Nikes, trying to decide where to go for dinner"> 


>> a = Annotation.find(1384) 
=> #<Annotation id: 1384, body: "Just hanging out -- \"playing possum\" -- at the stor...", last_updated_by_id: 3, created_by_id: 3, song_id: 30, deleted_at: nil, created_at: "2009-09-06 01:56:55", updated_at: "2009-10-27 22:02:35", referent: "in the spot playing possum\nDebating my destination,...", vote_score: 0> 
>> a.revert_to(8) 
=> 8 
>> a.body 
=> #<RDiscount:0x21b5a10 @filter_styles=true, @smart=true, @fold_lines=nil, @filter_html=nil, @text="I.e. just hanging out -- \"playing possum\" -- in the living room, lacing up the new Nikes, trying to decide where to go for dinner"> 
>> a.revert_to(:last) 
=> 11 
>> a.revert_to(9) 
=> 9 
>> a.body 
=> #<RDiscount:0x21b5a10 @filter_styles=true, @smart=true, @fold_lines=nil, @filter_html=nil, @text="I.e. just hanging out -- \"playing possum\" -- in the living room, lacing up the new Nikes, trying to decide where to go for dinner"> 

也就是說，如果我revert_to(9)從剛裝入標註身體字段包含RDiscount對象，它的文字就開始「就掛出 - \」裝傻\「 - 在商店」（這是什麼身體作爲第9版）

但是，如果我從一個剛裝入標註恢復到revert_to(8)，檢查標註的身體，revert_to(:last)和revert_to(9)，註釋的身體，而在9版本將是錯誤的（它將與版本8中的註釋的主體匹配）

任何想法？

Answer 1

這不是vestal_versions中的錯誤，它是rails在版本更改後沒有重新加載關聯。 假設你Annotation持有ID您RDiscount會發生以下情況：

1. 你取一個Annotation「一」與RDiscount ID x的。
2. 您將「a」還原爲先前版本，RDiscount id更改爲y。
3. 您致電a.body，導致導軌加載RDiscount對象與id y。
4. 您將「a」還原爲:last，RDiscount id會再次變爲x。
5. 您再次撥打a.body，但rails已經加載了RDiscount對象，並將返回此對象。