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Subject: Re: fetching data: how to filter?
References: <BANLkTik8K6-ndbU9FFE=WO-HhcHhUFjejA@mail.gmail.com>
From: Jim Klo <jim.klo@sri.com>
In-reply-to: <BANLkTik8K6-ndbU9FFE=WO-HhcHhUFjejA@mail.gmail.com>
Message-id: <0FE69EE5-B262-49E0-934C-AACBF0CB2242@sri.com>
Date: Sun, 15 May 2011 14:09:26 -0700
To: "user@couchdb.apache.org" <user@couchdb.apache.org>

You need to define a view, using the name as at least part of the key or create a list. Then you can filter using the key in a view or some parameter you pass using a list. 

I suggest taking a look a Max Ogden's talk on CouchDB. It's a great jumpstart for a newbie. 

http://vimeo.com/18808177

- Jim


On May 15, 2011, at 1:34 PM, Alexander Gabriel <alex@barbalex.ch> wrote:

> Hi
> I want to fetch documents from a CouchDb named evab. The documents include a
> field "Typ" and I want to fetch those with Typ = Beobachtung.
> 
> So far I've tried:
> 
>   - curl -d "{\"Typ\":\"Beobachtung\"}" -X POST
>   http://username:secretpassword@127.0.0.1:5984/evab/_bulk_docs?include_docs=true>
> Beobachtungen.json
>   - curl -d "{\"docs\": [{\"Typ\":\"Beobachtung\"}]}" -X POST
>   http://username:secretpassword@127.0.0.1:5984/evab/_all_docs?include_docs=true>
> Beobachtungen.json
>   - replacing {\"Typ\":\"Beobachtung\"} or {\"docs\":
>   [{\"Typ\":\"Beobachtung\"}]} with "@TypBeob_Kriterien.json" to circumvent
>   problems with the windows-command-tool and " or '.
> 
> I consistently get all the data of all the docs in the CouchDb.
> 
> From the documentation I have not understood:
> 
>   - _all_docs or _bulk_docs? It seems that both work the same.
>   - Is ist maybe only possible to filter with keys = _id's?
>   - Is it possible to fetch the data from a view?
> 
> 
> Or simply: What is the best way to do it?
> 
> Thanks for help!
> 
> Alexander Gabriel