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Subject: Re: Delete document Tree Structure
From: J Chris Anderson <jchris@gmail.com>
In-Reply-To: <COL119-W2087333D02D7B7EC2FED7CC3EA0@phx.gbl>
Date: Wed, 26 May 2010 21:43:58 -0700
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References: <COL119-W2087333D02D7B7EC2FED7CC3EA0@phx.gbl>
To: user@couchdb.apache.org


On May 26, 2010, at 8:48 PM, Aun... =E0=B8=AA=E0=B8=B8=E0=B8=A7=E0=B8=9E=E0=
=B8=A3=E0=B8=AB=E0=B8=A1 wrote:

>=20
>=20
> Hi,
>=20
>       I design document in couchdb to have relation something like
>=20
>              directory
>                    |
>                    A---------D
>                    |
>                    B---------C
>                                 |
>                                 |
>                                 E ------F
>=20
>         if i would like to http (DELETE B) will delete all down =
documents what is the possible solution to use.
>=20
>                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.....?
>=20

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


>=20
> Thanks,
> A.=20
>=20
>=20
> 		 	   		 =20
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