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Re: Read fileResource data directly

 

Yeah, I think it's fairly recent.. if you don't have to support every
single version of IE.. I think it's safe to use it :) (it also removes the
need to store tmp files on the server)

-- 
Morten Olav Hansen
Senior Engineer, DHIS 2
University of Oslo
http://www.dhis2.org

On Thu, Jun 2, 2016 at 3:07 PM, chathura widanage <
chathurawidanage@xxxxxxxxx> wrote:

> Didn't know about the FileReader API till now. Thanks for the information.
> I had the thought that browsers block local file read. Thanks a lot.
>
>
>
> On Thu, Jun 2, 2016 at 1:19 PM, Morten Olav Hansen <morten@xxxxxxxxx>
> wrote:
>
>> Ok, but why do you need to store it in the server at all? can't you just
>> process it on the client?
>>
>> --
>> Morten Olav Hansen
>> Senior Engineer, DHIS 2
>> University of Oslo
>> http://www.dhis2.org
>>
>> On Thu, Jun 2, 2016 at 2:16 PM, chathura widanage <
>> chathurawidanage@xxxxxxxxx> wrote:
>>
>>> Hi Morten,
>>>
>>> Thanks. Just the selected rows from the CSV are going to be stored in
>>> the data store. But to do so, first I need to show the content of the CSV
>>> to the user (graphically). So I have to read the content of the CSV first.
>>>
>>> If I am going to do it in one of my own web app, what I will do is,
>>>
>>> 1. Upload the CSV to server temporary.(say tmp.csv) (I need a solution
>>> for this step in the DHIS context)
>>> 2. Read back the uploaded CSV(tmp.csv) show it to the user. (draw a
>>> chart in my case)
>>> 3. Allow the user to select the required data.
>>> 4. Save only the selected data(rows) to the database. (In DHIS, saving
>>> to the data store)
>>> 5. Delete tmp.csv
>>>
>>> So what I really need is to do the same thing in step 1 above using the
>>> DHIS Web api.
>>>
>>> Thanks.
>>>
>>> On Thu, Jun 2, 2016 at 12:37 PM, Morten Olav Hansen <morten@xxxxxxxxx>
>>> wrote:
>>>
>>>> Did you have a look at the data store API? [1], you could also use the
>>>> user setting API to store it (if its small enough) [2]
>>>>
>>>> [1]
>>>> http://dhis2.github.io/dhis2-docs/master/en/developer/html/ch01s67.html
>>>> [2]
>>>> http://dhis2.github.io/dhis2-docs/master/en/developer/html/ch01s46.html
>>>>
>>>> --
>>>> Morten Olav Hansen
>>>> Senior Engineer, DHIS 2
>>>> University of Oslo
>>>> http://www.dhis2.org
>>>>
>>>> On Thu, Jun 2, 2016 at 2:03 PM, chathura widanage <
>>>> chathurawidanage@xxxxxxxxx> wrote:
>>>>
>>>>> Yes, display in a chart as a preview. Part of the data(selected rows)
>>>>> will be then saved as an attribute in a custom object. Custom object will
>>>>> then be persisted to the system. So there is no need of retrieving data
>>>>> from this fileSource later.
>>>>>
>>>>> On Thu, Jun 2, 2016 at 12:29 PM, Knut Staring <knutst@xxxxxxxxx>
>>>>> wrote:
>>>>>
>>>>>> Sure, but what is it you want to do with this after retrieving?
>>>>>> Display it somehow?
>>>>>>
>>>>>> Knut
>>>>>>
>>>>>> On Thu, Jun 2, 2016 at 11:11 AM, chathura widanage <
>>>>>> chathurawidanage@xxxxxxxxx> wrote:
>>>>>>
>>>>>>> Thanks for the response, what I meant by read is, retrieve the
>>>>>>> content of the file. Comma separated values as a String in my case.
>>>>>>>
>>>>>>> Chathura
>>>>>>>
>>>>>>> On Thu, Jun 2, 2016 at 12:08 PM, Knut Staring <knutst@xxxxxxxxx>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> The answer is probably no, although I am not sure what you mean by
>>>>>>>> "read"?
>>>>>>>>
>>>>>>>> Knut
>>>>>>>>
>>>>>>>> On Thu, Jun 2, 2016 at 10:53 AM, chathura widanage <
>>>>>>>> chathurawidanage@xxxxxxxxx> wrote:
>>>>>>>>
>>>>>>>>> Hi devs,
>>>>>>>>>
>>>>>>>>> Is there a way to read the content of a fileResource without
>>>>>>>>> linking the resource to a dataValue.
>>>>>>>>>
>>>>>>>>> example scenario :
>>>>>>>>>
>>>>>>>>> Upload a CSV which contains some arbitrary data and read it
>>>>>>>>> immediately. I won't need these data after the first read.
>>>>>>>>>
>>>>>>>>> Regards,
>>>>>>>>> Chathura
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> Mailing list: https://launchpad.net/~dhis2-devs
>>>>>>>>> Post to     : dhis2-devs@xxxxxxxxxxxxxxxxxxx
>>>>>>>>> Unsubscribe : https://launchpad.net/~dhis2-devs
>>>>>>>>> More help   : https://help.launchpad.net/ListHelp
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> Knut Staring
>>>>>>>> Dept. of Informatics, University of Oslo
>>>>>>>> Norway: +4791880522
>>>>>>>> Skype: knutstar
>>>>>>>> http://dhis2.org
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Best Regards,
>>>>>>>
>>>>>>> *Chathura Widanage,*
>>>>>>> Undergraduate,
>>>>>>> Department of Computer Science and Engineering,
>>>>>>> University of Moratuwa,
>>>>>>> Sri Lanka
>>>>>>>
>>>>>>> <https://www.linkedin.com/profile/public-profile-settings?trk=prof-edit-edit-public_profile>
>>>>>>>   <http://facebook.com/chathura.widanage>
>>>>>>> <https://plus.google.com/u/0/109418781686423002025>
>>>>>>> <https://github.com/chathurawidanage>
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Knut Staring
>>>>>> Dept. of Informatics, University of Oslo
>>>>>> Norway: +4791880522
>>>>>> Skype: knutstar
>>>>>> http://dhis2.org
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Best Regards,
>>>>>
>>>>> *Chathura Widanage,*
>>>>> Undergraduate,
>>>>> Department of Computer Science and Engineering,
>>>>> University of Moratuwa,
>>>>> Sri Lanka
>>>>>
>>>>> <https://www.linkedin.com/profile/public-profile-settings?trk=prof-edit-edit-public_profile>
>>>>>   <http://facebook.com/chathura.widanage>
>>>>> <https://plus.google.com/u/0/109418781686423002025>
>>>>> <https://github.com/chathurawidanage>
>>>>>
>>>>> _______________________________________________
>>>>> Mailing list: https://launchpad.net/~dhis2-devs
>>>>> Post to     : dhis2-devs@xxxxxxxxxxxxxxxxxxx
>>>>> Unsubscribe : https://launchpad.net/~dhis2-devs
>>>>> More help   : https://help.launchpad.net/ListHelp
>>>>>
>>>>>
>>>>
>>>
>>>
>>> --
>>> Best Regards,
>>>
>>> *Chathura Widanage,*
>>> Undergraduate,
>>> Department of Computer Science and Engineering,
>>> University of Moratuwa,
>>> Sri Lanka
>>>
>>> <https://www.linkedin.com/profile/public-profile-settings?trk=prof-edit-edit-public_profile>
>>>   <http://facebook.com/chathura.widanage>
>>> <https://plus.google.com/u/0/109418781686423002025>
>>> <https://github.com/chathurawidanage>
>>>
>>
>>
>
>
> --
> Best Regards,
>
> *Chathura Widanage,*
> Undergraduate,
> Department of Computer Science and Engineering,
> University of Moratuwa,
> Sri Lanka
>
> <https://www.linkedin.com/profile/public-profile-settings?trk=prof-edit-edit-public_profile>
>   <http://facebook.com/chathura.widanage>
> <https://plus.google.com/u/0/109418781686423002025>
> <https://github.com/chathurawidanage>
>

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