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From Paul Davis <paul.joseph.da...@gmail.com>
Subject Re: startkey
Date Tue, 16 Jul 2013 19:45:58 GMT
As the value (the second argument to emit).


On Tue, Jul 16, 2013 at 2:45 PM, Paul Davis <paul.joseph.davis@gmail.com>wrote:

> In that case I'd just emit the part of the doc for the language for each
> row.
>
>
> On Tue, Jul 16, 2013 at 1:00 PM, Stephan Bardubitzki <
> stephan@bardubitzki.com> wrote:
>
>> Got it, however, it is not quite what I was hoping to accomplish.
>>
>> The language object of the each doc has 12 languages and
>> include_docs=true will response all of them. What can I do to get all doc
>> properties but just the language 'fr' property, for example, to save on
>> data usage on mobile devices?
>>
>>
>>
>> On 13-07-15 09:00 PM, Paul Davis wrote:
>>
>>> Yes, the second example I gave should accomplish that.
>>>
>>> The {} is an empty JSON object which should sort higher than any value
>>> you
>>> emit assuming you're not emitting complicated objects which is not
>>> suggested due to surprising sort results.
>>>
>>>
>>> On Mon, Jul 15, 2013 at 10:52 PM, Stephan Bardubitzki <
>>> stephan@bardubitzki.com> wrote:
>>>
>>>  Just for clarification, I'm looking after one map function that can
>>>> create
>>>> a view where all docs that have the same doc.kml_id, are sorted by
>>>> doc.marker and only contains the description for a particular language
>>>> from
>>>> the doc.language array.
>>>>
>>>> Is this possible with one map function?
>>>>
>>>>
>>>>
>>>>
>>>> On 13-07-15 07:15 PM, Stephan Bardubitzki wrote:
>>>>
>>>>  And I need the doc.marker too, sorted 0...n? Any example?
>>>>>
>>>>> What are the {} for?
>>>>>
>>>>> Thanks again.
>>>>> Stephan
>>>>>
>>>>> On 13-07-15 07:00 PM, Paul Davis wrote:
>>>>>
>>>>>  A couple examples might be something like:
>>>>>>
>>>>>> All rows for French:
>>>>>>
>>>>>> startkey: ["fr"]
>>>>>> endkey: ["fr",{}]
>>>>>>
>>>>>> All rows for a specific kml_id:
>>>>>>
>>>>>> starkey: ["fr", id]
>>>>>> endkey: ["fr", id, {}]
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Mon, Jul 15, 2013 at 8:58 PM, Paul Davis <
>>>>>> paul.joseph.davis@gmail.com
>>>>>>
>>>>>>> **wrote:
>>>>>>>
>>>>>>   Exactly like that yeah.
>>>>>>
>>>>>>>
>>>>>>> On Mon, Jul 15, 2013 at 8:55 PM, Stephan Bardubitzki <
>>>>>>> stephan@bardubitzki.com> wrote:
>>>>>>>
>>>>>>>   Thanks for your response Paul. I think I'm missing something
>>>>>>> important.
>>>>>>>
>>>>>>>> How do I tell the view that I just need fr - language and
not en,
>>>>>>>> de,
>>>>>>>> es ...
>>>>>>>>
>>>>>>>> startkey: ["fr", id, 0] ?
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On 13-07-15 03:26 PM, Paul Davis wrote:
>>>>>>>>
>>>>>>>>   You'll need to add an element to the key to emit the language.
>>>>>>>> Pseudo
>>>>>>>>
>>>>>>>>> code:
>>>>>>>>>
>>>>>>>>> for language in doc["languages"]:
>>>>>>>>>         emit([language, doc.kml_id, doc.marker], 1)
>>>>>>>>>
>>>>>>>>> Also note that its generally not a good idea to emit
the doc as the
>>>>>>>>> value.
>>>>>>>>> You should prefer to use include_docs=true in the query
string.
>>>>>>>>> Emitting
>>>>>>>>> 1
>>>>>>>>> allows you to specify "_sum" as a reduce function to
get row counts
>>>>>>>>> for
>>>>>>>>> specific start/end key pairs.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Mon, Jul 15, 2013 at 5:07 PM, Stephan Bardubitzki
<
>>>>>>>>> stephan@bardubitzki.com> wrote:
>>>>>>>>>
>>>>>>>>>    Hi there,
>>>>>>>>>
>>>>>>>>>  this map function
>>>>>>>>>>
>>>>>>>>>> "map": "function(doc) { if (doc.kml_id &&
doc.marker) {
>>>>>>>>>> emit([doc.kml_id,
>>>>>>>>>> doc.marker], doc) } }"
>>>>>>>>>>
>>>>>>>>>> and this startkey
>>>>>>>>>>
>>>>>>>>>> startkey: [id, 0]    --> sorting doc.marker
>>>>>>>>>>
>>>>>>>>>> let me retrieve data from a couch as needed.
>>>>>>>>>>
>>>>>>>>>> Now I got the task to add more languages beside English
for
>>>>>>>>>> description
>>>>>>>>>> properties in an array structure like this
>>>>>>>>>>
>>>>>>>>>> "language": [
>>>>>>>>>>        {
>>>>>>>>>>            "en":{
>>>>>>>>>>
>>>>>>>>>>                    }
>>>>>>>>>>        },
>>>>>>>>>>        {
>>>>>>>>>>             "fr": {
>>>>>>>>>>
>>>>>>>>>>                     }
>>>>>>>>>>        }
>>>>>>>>>> ]
>>>>>>>>>>
>>>>>>>>>> I stuck in figuring out a startkey that let me retrieve
the sorted
>>>>>>>>>> data
>>>>>>>>>> only for a particular language.
>>>>>>>>>>
>>>>>>>>>> Any advice would be really appreciated.
>>>>>>>>>>
>>>>>>>>>> Thanks,
>>>>>>>>>> Stephan
>>>>>>>>>>
>>>>>>>>>>
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