dhis2-devs team mailing list archive

[Mark Polak <mark@xxxxxxxxxxxxxxx>]

Like Morten says, lodash.groupBy is probably better, (if you using that
already)

The ID might not be the same across instances? So if it needs to work
across instances that won't work?


On Sun, Nov 22, 2015 at 1:13 PM, Morten Olav Hansen <mortenoh@xxxxxxxxx>
wrote:

> Personally I wouldn't create the map based on names, since they could
> potentially change, better to use the ID.
>
> Simplest way of doing this I can think of is using lodash (which you
> probably use anyways) and do:
>
> const groupedById =  _.groupBy(o.attributes, "id");
>
> --
> Morten
>
> On Sun, Nov 22, 2015 at 7:00 PM, Mark Polak <mark@xxxxxxxxxxxxxxx> wrote:
>
>> Hey Knut, Araz,
>>
>> The order for arrays is guaranteed according to the JSON standard i
>> believe. However for the objects property order  is not. (Just like in
>> Javascript)
>>
>> But we (DHIS2) don't seem to always return the array in the same order
>> from the server side, so in that case you can't really trust the order like
>> you said.
>>
>> Rework the list into a `Map`(JS Object) like Araz says will work. I just
>> coded you up a small function that does the transformation. See the
>> following gist link.
>>
>>
>> https://gist.github.com/Markionium/0e55e774b3c554521040#file-transformattributes-js
>>
>> Regards,
>>
>> Mark
>>
>>
>>
>> On Sun, Nov 22, 2015 at 10:08 AM, Araz Abishov <
>> araz.abishov.gsoc@xxxxxxxxx> wrote:
>>
>>> Hi Knut,
>>>
>>> What are you using for parsing JSON (which library)?
>>>
>>> In general you should never rely on order of items in JSON. It is better
>>> to interpret it as a "map" rather than "list".
>>>
>>> Best Regards,
>>> Araz
>>>
>>> On Sun, Nov 22, 2015 at 7:32 AM, Knut Staring <knutst@xxxxxxxxx> wrote:
>>>
>>>>
>>>> Below is a patient tracked entity instance
>>>>
>>>>
>>>>
>>>> In order  to get a first name or a last name from this attribute list,
>>>> we would have to loop through all the attributes until we find an attribute
>>>> that has the displayName "firstName", as all the attribute seem to be in
>>>> random order for each patient. That is inefficient and clunky. Is there a
>>>> way to get the data in a format that could be read by javascript more
>>>> easily?
>>>>
>>>>
>>>>
>>>> {
>>>>          "lastUpdated":"2014-03-28 12:33:47.354",
>>>>          "trackedEntity":"G0PlBqu2Boe",
>>>>          "created":"2014-03-26 15:46:02.45",
>>>>          "orgUnit":"DiszpKrYNg8",
>>>>          "trackedEntityInstance":"JRm9etA1dG1",
>>>>          "relationships":[
>>>>
>>>>          ],
>>>>          "attributes":[
>>>>             {
>>>>                "code":"MMD_PER_NAM",
>>>>                "displayName":"First name",
>>>>                "valueType":"TEXT",
>>>>                "attribute":"w75KJ2mc4zz",
>>>>                "value":"Kedija"
>>>>             },
>>>>             {
>>>>                "displayName":"Gender",
>>>>                "valueType":"TEXT",
>>>>                "attribute":"cejWyOfXge6",
>>>>                "value":"Female"
>>>>             },
>>>>
>>>> ...
>>>>          ]
>>>>       },
>>>>
>>>>
>>>>
>>>> I tried something like the below, but that doesn't seem to work. What
>>>> am I missing?
>>>>
>>>>
>>>>
>>>> https://play.dhis2.org/demo/api/trackedEntityInstances/PQfMcpmXeFE.json?fields=attributes[displayName]&filter=attributes[displayName]:eq:Gender
>>>>
>>>>
>>>>
>>>>
>>>>
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>>>>
>>>
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>>>
>>
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>>
>