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From J Chris Anderson <jch...@gmail.com>
Subject Re: Delete document Tree Structure
Date Thu, 27 May 2010 04:43:58 GMT

On May 26, 2010, at 8:48 PM, Aun... สุวพรหม wrote:

> 
> 
> Hi,
> 
>       I design document in couchdb to have relation something like
> 
>              directory
>                    |
>                    A---------D
>                    |
>                    B---------C
>                                 |
>                                 |
>                                 E ------F
> 
>         if i would like to http (DELETE B) will delete all down documents what is the
possible solution to use.
> 
>                1.    can i create view and find relation and delete all of them ?
>                2.    get  relation by higher programming api (C#,PHP) and then delete
each one?
>                3.    Do you have any solution to suggest on this.....?
> 

It is common to store the full path to each item, on the item, so you'd have

B > C > E > F stored on F

then you can view easily across the tree.

however, reparenting a node, (say, moving B to become a child of D) require asynchronous processing
or a bulk docs request and is not transactional.

Chris


> 
> Thanks,
> A. 
> 
> 
> 		 	   		  
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