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Subject: Re: getting list of items spanning a time period
From: Manokaran K <mano@smartgrader.com>
To: user@couchdb.apache.org
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Content-Type: text/plain; charset=UTF-8
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 'admission_date<date>:[' + fromDate + '%20TO%20' + tillDate + ']' +
'%20OR%20' +
'discharge_date<date>:[' + fromDate + '%20TO%20' + tillDate + ']' +
'%20OR%20' +
'\(' +
admission_date<date>:[' + beforeFromDate + '%20TO%20' + fromDate + ']' +
'%20AND%20' +
'discharge_date<date>:[' + tillDate + '%20TO%20' + afterTillDate + ']' +
'\)' +
'%20OR%20\(' +
'admission_date<date>:[' + beforeFromDate + '%20TO%20' + fromDate + ']' +
'%20AND%20' +
'status:under_treatment' +
'\)' +



On Mon, Apr 1, 2013 at 3:18 PM, Robert Newson <rnewson@apache.org> wrote:

> I'm not sure it's possible in a couchdb view, at least not a single
> call or view. The best I can think of a view keyed on admission_time
> and another on discharge_time. You'd have to do the set subtraction
> yourself, though. couchdb-lucene obviously does this for you. I assume
> you're doing boolean queries using admission_time and discharge_time
> fields?
>
>
> B.
>
> On 1 April 2013 10:38, =D0=90=D0=BB=D0=B5=D0=BA=D1=81=D0=B0=D0=BD=D0=B4=
=D1=80 =D0=9E=D0=BF=D0=B0=D0=BA <opak.alexandr@gmail.com> wrote:
> > Use Cron(http://en.wikipedia.org/wiki/Cron) for this =3D)
> >
> >
> > 2013/4/1 Manokaran K <manokaran@gmail.com>
> >
> >> Hi,
> >>
> >> Am working on an hospital information system using couchdb and node.js=
.
> For
> >> this I need to get the list and number of patients in a given time
> period -
> >> usually a day. I can get the patients who were admitted or discharged =
in
> >> that time period. How to get the list of patients who were admitted
> earlier
> >> than the start of the period but who got discharged after the time
> period
> >> or who are not discharged yet?
> >>
> >> Am currently using couchdb-lucene to get this list but would like to
> know
> >> if there is a way where I can get it from a view - that way I can just
> >> reduce and get the number of patients in a given period. I was
> wondering if
> >> I should use a scheduler that will create a new 'under_treatment' doc
> for
> >> every day till the patient is discharged! Or is there a simpler way?
> >>
> >> Thanks in advance,
> >> mano
> >>
> >> --
> >> Lord, give us the wisdom to utter words that are gentle and tender, fo=
r
> >> tomorrow we may have to eat them.
> >>     -Sen. Morris Udall
> >>
>



--=20
K Manokaran
Chief Executive Officer
MindPlough Analytics Pvt Ltd
(SmartGrader is the flagship service of MindPlough)
Mobile: +91 98400 88688

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