somehow user and dev got cut off this, see below for an example..
Hi,
I have taken your example (and I have also uploaded the latest code to git).
Create the following documents
{
"type": "B",
"created_at": "20100920"
}
{
"type": "A",
"created_at": "20100920"
}
{
"type": "B",
"created_at": "20100919"
}
and then create two views that emit the type and created_at properties
as keys (as strings)
{
"_id": "_design/main",
"language": "javascript",
"views": {
"by_date": {
"map": "function(doc) {
if (doc.created_at)
emit(doc.created_at, null);
}"
},
"by_type": {
"map": "function(doc) {
if (doc.type)
emit(doc.type, null);
}"
}
}
}
using curl then post
curl -X POST http://localhost:5984/sample/_multi -d @sample.json
where sample.json contains
{
"views":[
"/sample/_design/main/_view/by_type?startkey=\"A\"&endkey=\"A\"",
"/sample/_design/main/_view/by_date?startkey=\"20100920\"&endkey=\"20100920\""
]
}
to get all doc ids which are of type A on the 20th September.
There will be one id returned.
thanks,
Norman
On Mon, Sep 20, 2010 at 11:34 AM, <[email protected]> wrote:
> Hi,
>
> Sorry there is something I don't understand in your explanation.
>
> IMHO If I need to query on two distinct attributes (properties) of a document
> I'd need only two views, not three.
>
> If I have a docs like :
>
> {
> "type" : "some value",
> "created_at" : "some_date"
> }
>
> If I'd like to get all the docs for a given time range, I'd create a view
> with created_at as key. Then I can pass a (startkey,endkey) pair of params to
> filter on the time range and get the appropriate documents.
>
> Now if I'd like all the documents of a given type, I'd create a view with
> type as key. Then I can pass a key param in order to get all the docs of a
> given (key) type.
>
> So, from my point of view I'd need only those two views to get all the docs
> of a given type and created in a given time range. Am I wrong ?
>
> If not, how should I pass the keys when invoking the multiview ? Could you
> please post an example, beacause I'm pretty sure it would clarify many things.
>
> Thanks again
>
> Regards,
>
> cdrx
>
>
>> Hi,
>>
>> thanks again for testing this.
>>
>> <snip>
>>
>>> However what I'd like to know if it is possible to pass parameters (keys,
>>> ranges) to the "called views" map functions ( in this example views "test"
>>> in _design/three and _design/four ) ?
>>>
>>> Something like : return all documents which id is a multiple of N _and_ ,
>>> for instance , is created in a given time range (assuming we have a
>>> creation date field in the doc).
>>>
>>> Is this case covered by the multiview feature ?
>>>
>>
>> yes,
>>
>> this would be three views in the body of the JSON document posted to the
>> server.
>>
>> One view for each of the ranges where you are querying the ids for
>> mulltiples and the a view query with a startkey and endkey for the
>> date range.
>>
>> I use the multiview for this use case, documents between a two dates
>> with values X.
>>
>> Norman
>
>
