dhis2-devs team mailing list archive

[Pamod Amarakoon <pamodm@xxxxxxxxx>]

Hi,

Thanks a lot. In fact I'm a medical doctor and have limited knowledhe in
Javascript. I managed to get it done with following javascript I created.

height enterd in cm and weight in kg.

<script type="text/javascript">

function updateBMI() {
var ht = document.getElementById("HeightID-val").value;
var wt = document.getElementById("WeightID-val").value;
if(ht!="" && wt!=""){
var bmi = wt/(ht*ht/10000);
bmi = +bmi.toFixed(2);
}else{
var bmi ="Enter Height and Weight";
}
var inputbmi= document.getElementById("BMI-ID-val");
inputbmi.value = bmi;
}
updateBMI();

</script>

It serves the purpose it seems. Pls suggest any modifications


On Mon, Sep 1, 2014 at 11:52 PM, Ngoc Thanh Nguyen <
thanh.hispvietnam@xxxxxxxxx> wrote:

> yes you can use custom data entry form and add some js script like
> onchange event on weight and height.
>
> the event handler should then calculate the bmi and update the text field
> bmi.
>
> do you have any technical person to do this? if not give me your account i
> can help
> On Sep 2, 2014 12:26 AM, "Pamod Amarakoon" <pamodm@xxxxxxxxx> wrote:
>
>> I'd like to add something to this.
>>
>> For example, if we have a data entry form (BMI) for a program stage if we
>> have height and weight input boxes/data elements is there a way to
>> calculate BMI?
>> is it only possible by using javascript/webapp
>>
>>
>> On Mon, Sep 1, 2014 at 10:21 PM, Ngoc Thanh Nguyen <
>> thanh.hispvietnam@xxxxxxxxx> wrote:
>>
>>> Hi
>>>
>>> I believe the calculated data value (now as indicator) can only be seen
>>> after an aggregation is run.
>>> In addition, in some forms in some countries like VN, auto-calculated
>>> data elements some time can be input by users.
>>>
>>> In VN, we use Javascript to achieve this. However, it is quite
>>> complicated. Imagine that you have to rebuild a spreadsheet engine.
>>>
>>> Important lesson learnt was if a dataelement is auto-calculated, make
>>> sure no one can change it manually. Otherwise, you end up with very low
>>> data quality.
>>>
>>> Thanh
>>>
>>>
>>> On Mon, Sep 1, 2014 at 11:15 PM, Jason Pickering <
>>> jason.p.pickering@xxxxxxxxx> wrote:
>>>
>>>> Hi Robin,
>>>>
>>>> You can simply use an indicator to do this.
>>>>
>>>> In case you have not seen it, we have extensive documentation on the
>>>> use of indicators here
>>>>
>>>>
>>>> https://www.dhis2.org/doc/snapshot/en/user/html/ch13.html#indicator_maintenance
>>>>
>>>> It should also be possible to calculate the value from other data, not
>>>> contained in the data entry form, IF it exists for the same orgunit and
>>>> period.
>>>>
>>>> Best regards,
>>>> Jason
>>>>
>>>>
>>>>
>>>> On Mon, Sep 1, 2014 at 5:48 PM, Robin Martens <martens@xxxxxxx> wrote:
>>>>
>>>>>   Dear all,
>>>>>
>>>>>
>>>>>
>>>>> Does anyone know if there's a way to have auto-calculated fields in
>>>>> data entry forms? This auto-calculated field would then be available for
>>>>> further reporting and indicator calculation (i.e. it is a data element
>>>>> calculated based on other data elements in the same entry form).
>>>>>
>>>>>
>>>>>
>>>>> Actually, if it would be possible to calculate data elements based on
>>>>> other data elements outside of a data form, that would be great too (but if
>>>>> I remember well this is currently not possible).
>>>>>
>>>>>
>>>>>
>>>>> Thanks for any ideas,
>>>>>
>>>>>
>>>>>
>>>>> Robin
>>>>>
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>>>>>
>>>>>
>>>>
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>>>>
>>>
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>>>
>>
>>
>> --
>> Pamod
>>
>>


-- 
Pamod