2017-10-21 158 views
0

我正在重新排列SQLAlchemy排序列表中的項目。它在我向前移動項目時有效,例如。位置索引1至5.但從5移至1時不起作用。SQLAlchemy排序列表插入

### DB MODELS 
from_brief_position = self.request.dbsession.query\ 
(BriefPosition).filter_by(brief_id=from_brief_id).one() 

to_brief_position = self.request.dbsession.query\ 
(BriefPosition).filter_by(brief_id=to_brief_id).one() 


### INDEX 
from_position = from_brief_position.position.index 
to_position = to_brief_position.position.index 

### INSERT AND REARRANGE 
p = from_brief_position.position 
book.indexed_content.insert(to_position, p) 
book.indexed_content.reorder() 

謝謝!

回答

0

嘗試從列表中刪除to_position之前重新插入它,然後執行reorder