ODK Community Google Group

Does ODK require you to be on a network provider?

chad.noble.tabi...@gmail.com — Sat, 18 May 2013 03:38:59 UT

Aloha,
I am planning on using ODK in the Philippines, however, I will not be connected to any cellphone provider.
Does ODK allow you to collect data when you are offline?
*I will have wifi acces periodically, thus I hope to upload the data collected when I am in a WIFI zone.
Chad

ODK Collect crashes if regex string constraint added, 61 char max.

greg.pom...@edmonton.ca (Greg) — Fri, 17 May 2013 15:44:56 UT

Hi,
In order to constrain the answers of users in my forms to under 255
characters I've been wanting to use a binding like this
<bind nodeset="/Example/TextField" type="string" jr:constraintMsg="You are
limited to 255 characters." constraint="regex(., '^.{0,255}$')"/>
However, putting in this regex constraint now seems to crash ODK Collect if

Editions of PostgreSQL Supported for ODK Aggregate

kotuku...@gmail.com (EvanYates) — Fri, 17 May 2013 03:35:29 UT

Does ODK aggregate work with 64-bit PostgreSQL?
We want to separate our ODK app server (Linux) from its PostgreSQL database
server (Windows 2008) for security policy compliance reasons (No DBs in the
DMZ). Should we use 32-bit or 64-bit PostgreSQL on the Windows server? Does
it matter which? Does ODK support both versions because it is using the

Are you using ODK in a community situation?

j.pars...@globalcanopy.org (Jon Parsons) — Thu, 16 May 2013 17:11:13 UT

Hi all
We are looking to find all the organisations that are currently running, or
have plans to run in the future, a Community Monitoring Recording and
Verification (C-MRV) project either using ODK (or any other tech) - as we
have funding as part of our phase two C-MRV project in Guyana to create a

Multiple ODK Servers on Tomcat crashing

akenn...@camfed.org (Adakole Kennedy) — Thu, 16 May 2013 08:33:52 UT

Hi,
I have 4 instances of ODK aggregate servers set up on windows 2008,with
mysql installed as well as tomcat 6.0. In the past three days I have been
unable to access all four of them. Any help will be appreciated.
Adah

How is GPS accuracy calculated in ODK?

steeve.ebe...@gmail.com — Thu, 16 May 2013 05:32:17 UT

Hi Guys,
We are potentialy interested in using ODK for some data collection exercise but would need to know how the GPS accuracy measure is calculated in ODK in order to have a good understanding on how reliable this measure is.
Many thanks therefore in advance for your answer on the above and best regards,

Do not enable 'PageSpeed Service' on Google AppEngine

mitchellsu...@gmail.com (Mitch Sundt) — Wed, 15 May 2013 20:36:55 UT

Hi everyone,

If you are running on Google AppEngine, and are trying to tweak the app for
better performance, *do not enable PageSpeed Service*.

This is an option under the Application Settings sidebar link.

If you do enable this, you will end up with a blank screen being displayed
instead of the app.

ODK Aggregate with a reverse proxy

jason.p.picker...@gmail.com — Wed, 15 May 2013 17:52:11 UT

Hi there. I am totally new to ODK Aggregate, but have followed the project over the years, and am finally glad to have a chance to work with it. My first task however was to setup an ODK Aggregate server using an SSL-enabled reverse proxy. The current documentation descries a situation where there is not a reverse proxy (such as Nginx or Apache) in front of the Tomcat server for ODK Aggregate. The documented approach uses ipchains to forward the traffic to the correct ports on Tomcat, but getting SSL enabled in Tomcat can be a bit of a hassle, especially if you already have a webserver with SSL enabled. I thought I would share my experience with the group for future benefit, as I could not find this documentation readily available anywhere.

Enumerator Name Field

fit...@gmail.com (Ed FitzGerald) — Wed, 15 May 2013 15:30:59 UT

Hello,
I'm using XLSform and I would like to prepopulate a field for the
enumerator's name so that they don't have to type it in on every new form
instance. I couldn't find a way to pull data from completed forms stored on
the device so, I thought about using the username specified on the settings

XLSForm syntax docs translated to french!

mlb...@gmail.com (Matt Berg) — Wed, 15 May 2013 15:05:08 UT

Thanks to a heroic effort by Anaël BOULIER of Makina Corpus the XLSForm
syntax docs (standard used by formhub, odk aggregate, surveyCTO) etc has
been translated into French!

[link] (select the french tab)

We'll soon be moving these to a centralized documentation site at

random number changes after finalization

up...@worldbank.org (Utz Pape) — Wed, 15 May 2013 07:29:09 UT

Hi,

I am using the random() function to sample a respondent from a household
roster in the tablet. This is possible because the random() number doesn't
change while navigating within the form. However, I realized now that the
random() number is recalculated when the form is opened for editing after

3rd party app results and relevance

danieljbrid...@gmail.com (dj_bridges) — Wed, 15 May 2013 12:45:02 UT

I'm guessing there isn't an easy solution to this, but thought I would
throw it out there just in case.
We are launching a system whereby collected samples are labelled in a very
specific, but sequential manner (for the purposes of explanation, assume
the numbering goes 1 2 3 etc). To generate the label, we created a small

ODK decryption via ODK Briefcase

zeeco...@gmail.com (Coulson Thabo Kgathi) — Wed, 15 May 2013 08:56:52 UT

Hi guys i am failing to do decryption using odk briefcase, on the export
tap after running odk briefcase
the form field what exactly am i supposed to put there, because it seems to
be taking the form name.
Does it just use the form name and decrypt all the data in the database?
even if i put the form name i get an error that says:

How to get data from FormController

foundationservi...@gmail.com (Wyler Yerrachione) — Tue, 14 May 2013 23:01:55 UT

Greetings,
I'm attempting to integration some of the ODK/JavaRosa functionality into
an existing app. I would like to be able to ask the FormController for a
copy of the data that is going to be submitted, so I an place that data
into my own database and use my own submission strategy and stack. From

How to Skip Questions Based on Multiple Answers

kaminski.k...@gmail.com (Kara Kara) — Tue, 14 May 2013 17:58:43 UT

Hello All,
I am designing a survey for an impact evaluation in Kenya and am trying to
figure out how to skip a question based on multiple answers, not just one.
I realize that one can use the code ${variable} = 'answer' but an wondering
what code I use if I want a certain group of questions to be asked if the