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From Jan Lehnardt <...@apache.org>
Subject Re: playing with tags
Date Thu, 12 Feb 2009 10:53:09 GMT
Hi,

See http://wiki.apache.org/couchdb/HTTP_view_API

and "POST" under "Query Options".

You can POST a JSON structure with all your keys to
a view and get all matching rows.

Cheers
Jan
--

On 12 Feb 2009, at 11:42, Nicolas Clairon wrote:

> Hi there !
>
> I'm playing with tags these time and a question comes to me.
> For exemple, I have a bunch of blog articles:
>
> article1 = {
>  ...snip...,
>  tags : ["couchdb", "python", "best practices"],
> }
>
> article2 = {
>    ...snip...,
>    tags : ["python", "best practices"],
> }
>
> article3 = {
>    ...snip...,
>    tags : ["couchdb", "best practices"],
> }
>
> and a view wich emit tags:
>
> function(doc){
>    if (doc.type=="article"){
>        for (var i in doc.tags){
>            emit( doc.tags[i], doc )
>        }
>    }
> }
>
> We can get all articles wich are tagged with "couchdb" easily:
>
> http://localhost:5984/blog/_view/article/by_tag?key="couchdb"
>
> but now, I want all articles wich are tagged with "couchdb" *and*  
> "python"
> (I want the article1). Is there a method to do it directly with  
> CouchDB views ?
> Something like that :
>
> http://localhost:5984/blog/_view/article/by_tag?key_in=["couchdb",  
> "python"]
>
> For the moment, I have to do it by program,  firing 2 views and merge
> the results...
>
> We can also think something like this:
>
> http://localhost:5984/blog/_view/article/by_tag? 
> onekey_in=["couchdb", "python"]
>
> wich will get all articles which are tagged with "couchdb" *or*  
> "python"...
>
> Does it already exists in CouchDB ?
>


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