Re: PATCH: Fix the issue for saving query output as CSV

From: Neel Patel <neel(dot)patel(at)enterprisedb(dot)com>
To: Harshal Dhumal <harshal(dot)dhumal(at)enterprisedb(dot)com>
Cc: Dave Page <dpage(at)pgadmin(dot)org>, Akshay Joshi <akshay(dot)joshi(at)enterprisedb(dot)com>, Murtuza Zabuawala <murtuza(dot)zabuawala(at)enterprisedb(dot)com>, pgadmin-hackers <pgadmin-hackers(at)postgresql(dot)org>
Subject: Re: PATCH: Fix the issue for saving query output as CSV
Date: 2016-07-18 12:27:16
Message-ID: CACCA4P1-0QP_kOjf7Rq1EybShdn5YRUyBoy3Bnq8n2NCcoWRLQ@mail.gmail.com
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Hi,

Please find attached patch file to support server side download in runtime
application.

NOTE: Before applying this patch, use above harshal's patch.

Thanks,
Neel Patel

On Mon, Jul 18, 2016 at 5:31 PM, Harshal Dhumal <
harshal(dot)dhumal(at)enterprisedb(dot)com> wrote:

> Hi,
>
> PFA rebased patch RM1405 (version 4)
>
> Neel will be sending patch for QT issue for same functionality.
>
> --
> *Harshal Dhumal*
> *Software Engineer*
>
> EnterpriseDB India: http://www.enterprisedb.com
> The Enterprise PostgreSQL Company
>
> On Mon, Jul 18, 2016 at 4:02 PM, Dave Page <dpage(at)pgadmin(dot)org> wrote:
>
>> Perfect, thanks!
>>
>> On Mon, Jul 18, 2016 at 11:24 AM, Neel Patel <neel(dot)patel(at)enterprisedb(dot)com
>> > wrote:
>>
>>> Yes. I am just testing with different OS. I will send it next 1-2 hour.
>>>
>>> Is it fine ?
>>>
>>> Thanks,
>>> Neel Patel
>>>
>>> On Mon, Jul 18, 2016 at 3:53 PM, Dave Page <dpage(at)pgadmin(dot)org> wrote:
>>>
>>>> Any chance of getting that in the next couple of hours so I can get it
>>>> into beta 3?
>>>>
>>>> On Mon, Jul 18, 2016 at 11:18 AM, Dave Page <dpage(at)pgadmin(dot)org> wrote:
>>>>
>>>>> Thanks!
>>>>>
>>>>> On Mon, Jul 18, 2016 at 10:42 AM, Neel Patel <
>>>>> neel(dot)patel(at)enterprisedb(dot)com> wrote:
>>>>>
>>>>>> Hi Dave,
>>>>>>
>>>>>> Yes, it will break in runtime. If we need to support downloading at
>>>>>> server side then we need to change the runtime code.
>>>>>> I will send the patch for runtime to support server side download CSV
>>>>>> file.
>>>>>>
>>>>>> Thanks,
>>>>>> Neel Patel
>>>>>>
>>>>>> On Fri, Jul 15, 2016 at 3:05 PM, Dave Page <dpage(at)pgadmin(dot)org> wrote:
>>>>>>
>>>>>>> Hi
>>>>>>>
>>>>>>> This seems to break downloads in the runtime. It works in Safari and
>>>>>>> Chrome, but in the runtime the suggested filename is
>>>>>>> "6980287?query=SELECT+*+FROM+pem.probe_column%0AORDER+BY+id%0AASC+&filename=probe_column.csv",
>>>>>>> and after changing that and hitting OK, the "Downloading file" dialogue is
>>>>>>> shown indefinitely.
>>>>>>>
>>>>>>> On Wed, Jul 13, 2016 at 1:16 PM, Harshal Dhumal <
>>>>>>> harshal(dot)dhumal(at)enterprisedb(dot)com> wrote:
>>>>>>>
>>>>>>>> Hi,
>>>>>>>>
>>>>>>>> PFA rebased patch for RM1405
>>>>>>>>
>>>>>>>> --
>>>>>>>> *Harshal Dhumal*
>>>>>>>> *Software Engineer*
>>>>>>>>
>>>>>>>> EnterpriseDB India: http://www.enterprisedb.com
>>>>>>>> The Enterprise PostgreSQL Company
>>>>>>>>
>>>>>>>> On Wed, Jul 13, 2016 at 5:15 PM, Harshal Dhumal <
>>>>>>>> harshal(dot)dhumal(at)enterprisedb(dot)com> wrote:
>>>>>>>>
>>>>>>>>> Yes sure
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> *Harshal Dhumal*
>>>>>>>>> *Software Engineer*
>>>>>>>>>
>>>>>>>>> EnterpriseDB India: http://www.enterprisedb.com
>>>>>>>>> The Enterprise PostgreSQL Company
>>>>>>>>>
>>>>>>>>> On Wed, Jul 13, 2016 at 5:10 PM, Dave Page <dpage(at)pgadmin(dot)org>
>>>>>>>>> wrote:
>>>>>>>>>
>>>>>>>>>> Hi
>>>>>>>>>>
>>>>>>>>>> Can you rebase this please?
>>>>>>>>>>
>>>>>>>>>> Thanks.
>>>>>>>>>>
>>>>>>>>>> On Mon, Jul 11, 2016 at 9:16 AM, Harshal Dhumal <
>>>>>>>>>> harshal(dot)dhumal(at)enterprisedb(dot)com> wrote:
>>>>>>>>>>
>>>>>>>>>>> Hi,
>>>>>>>>>>>
>>>>>>>>>>> PFA patch for RM1405. Also to allow download in runtime we will
>>>>>>>>>>> still need patch
>>>>>>>>>>> <https://www.postgresql.org/message-id/CACCA4P3JOe40WYMGjhpSWYGR%3DWuvRbbp2gfDKLnU%2B1rXuW9Www%40mail.gmail.com>
>>>>>>>>>>> sent by Neel.
>>>>>>>>>>>
>>>>>>>>>>> Changes: To download query result to CSV directly from server
>>>>>>>>>>> and not to use download attr. of anchor tag (<a>) as it's not support by
>>>>>>>>>>> all of major browsers (e.g. Safari).
>>>>>>>>>>> Also it's not feasible to load data in html to download if
>>>>>>>>>>> result set of query is very huge (in GBs).
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> --
>>>>>>>>>>> *Harshal Dhumal*
>>>>>>>>>>> *Software Engineer*
>>>>>>>>>>>
>>>>>>>>>>> EnterpriseDB India: http://www.enterprisedb.com
>>>>>>>>>>> The Enterprise PostgreSQL Company
>>>>>>>>>>>
>>>>>>>>>>> On Wed, Jun 29, 2016 at 4:53 PM, Akshay Joshi <
>>>>>>>>>>> akshay(dot)joshi(at)enterprisedb(dot)com> wrote:
>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> On Wed, Jun 29, 2016 at 3:52 PM, Murtuza Zabuawala <murtuza.
>>>>>>>>>>>> zabuawala(at)enterprisedb(dot)com> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>> Yes, It will not work in runtime as well but I think Neel is
>>>>>>>>>>>>> working for fix in run time for this issue, We might able to fix it in run
>>>>>>>>>>>>> time but issue persists in Safari unless they add support in browser itself.
>>>>>>>>>>>>>
>>>>>>>>>>>>> https://webkit.org/status/#feature-download-attribute
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> > On 29-Jun-2016, at 3:40 pm, Dave Page <dpage(at)pgadmin(dot)org>
>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>> >
>>>>>>>>>>>>> > On Tue, Jun 28, 2016 at 10:33 AM, Murtuza Zabuawala
>>>>>>>>>>>>> > <murtuza(dot)zabuawala(at)enterprisedb(dot)com> wrote:
>>>>>>>>>>>>> >> Yes Dave, I agree that downloading files has been supported
>>>>>>>>>>>>> in browsers since long .
>>>>>>>>>>>>> >>
>>>>>>>>>>>>> >> But in general we send request & then receives files from
>>>>>>>>>>>>> web server but in our case we are fetching our data from Backbone models &
>>>>>>>>>>>>> then converting it to CSV format for downloading as a file at client side
>>>>>>>>>>>>> in browser itself.
>>>>>>>>>>>>> >
>>>>>>>>>>>>> > If Safari doesn't support client-side saving of files, then
>>>>>>>>>>>>> I have to
>>>>>>>>>>>>> > wonder if our runtime will either - both are webkit based.
>>>>>>>>>>>>> >
>>>>>>>>>>>>> > So I guess the next question to ask is; why don't we just
>>>>>>>>>>>>> generate the
>>>>>>>>>>>>> > CSV on the server side?
>>>>>>>>>>>>> >
>>>>>>>>>>>>>
>>>>>>>>>>>>> @Akshay,
>>>>>>>>>>>>> Can you please suggest on above?
>>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> As we already have complete data in backgrid's full
>>>>>>>>>>>> collection, so I have used it instead of fetching it again.
>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> > --
>>>>>>>>>>>>> > Dave Page
>>>>>>>>>>>>> > Blog: http://pgsnake.blogspot.com
>>>>>>>>>>>>> > Twitter: @pgsnake
>>>>>>>>>>>>> >
>>>>>>>>>>>>> > EnterpriseDB UK: http://www.enterprisedb.com
>>>>>>>>>>>>> > The Enterprise PostgreSQL Company
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> --
>>>>>>>>>>>>> Sent via pgadmin-hackers mailing list (
>>>>>>>>>>>>> pgadmin-hackers(at)postgresql(dot)org)
>>>>>>>>>>>>> To make changes to your subscription:
>>>>>>>>>>>>> http://www.postgresql.org/mailpref/pgadmin-hackers
>>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> --
>>>>>>>>>>>> *Akshay Joshi*
>>>>>>>>>>>> *Principal Software Engineer *
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> *Phone: +91 20-3058-9517 <%2B91%2020-3058-9517>Mobile: +91
>>>>>>>>>>>> 976-788-8246*
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> --
>>>>>>>>>> Dave Page
>>>>>>>>>> Blog: http://pgsnake.blogspot.com
>>>>>>>>>> Twitter: @pgsnake
>>>>>>>>>>
>>>>>>>>>> EnterpriseDB UK: http://www.enterprisedb.com
>>>>>>>>>> The Enterprise PostgreSQL Company
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Dave Page
>>>>>>> Blog: http://pgsnake.blogspot.com
>>>>>>> Twitter: @pgsnake
>>>>>>>
>>>>>>> EnterpriseDB UK: http://www.enterprisedb.com
>>>>>>> The Enterprise PostgreSQL Company
>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Dave Page
>>>>> Blog: http://pgsnake.blogspot.com
>>>>> Twitter: @pgsnake
>>>>>
>>>>> EnterpriseDB UK: http://www.enterprisedb.com
>>>>> The Enterprise PostgreSQL Company
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Dave Page
>>>> Blog: http://pgsnake.blogspot.com
>>>> Twitter: @pgsnake
>>>>
>>>> EnterpriseDB UK: http://www.enterprisedb.com
>>>> The Enterprise PostgreSQL Company
>>>>
>>>
>>>
>>
>>
>> --
>> Dave Page
>> Blog: http://pgsnake.blogspot.com
>> Twitter: @pgsnake
>>
>> EnterpriseDB UK: http://www.enterprisedb.com
>> The Enterprise PostgreSQL Company
>>
>
>

Attachment Content-Type Size
runtime_server_download.patch application/octet-stream 1.8 KB

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