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List: kde-panel-devel
Subject: Re: Review Request: Stop DataContainer from discarding multiple
From: "John Layt" <johnlayt () googlemail ! com>
Date: 2010-06-05 13:00:59
Message-ID: 20100605130059.16656.80003 () localhost
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> On 2010-06-05 09:29:07, Marco Martin wrote:
> > good catch.
> > could also have something to do wwith https://bugs.kde.org/show_bug.cgi?id=240462 \
> > ?
Just tested that scenario, but I'm afraid it doesn't fix it. I'll try look at that, \
and there's another report duplicated entries and failures to update. I also think \
the Event details displayed need a bit of polish.
- John
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
http://reviewboard.kde.org/r/4235/#review5992
-----------------------------------------------------------
On 2010-06-05 00:08:34, John Layt wrote:
>
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> http://reviewboard.kde.org/r/4235/
> -----------------------------------------------------------
>
> (Updated 2010-06-05 00:08:34)
>
>
> Review request for Plasma.
>
>
> Summary
> -------
>
> If a DataEngine implementation uses QHash::insertMulti() to try return multiple \
> values for a key, the DataContainer discards the multiple values and only returns a \
> single value to the client.
> A simplified example showing where 2 holidays occurring on the same date need to be \
> treated as separate data entities:
> Plasma::DataEngine::Data holidays;
> holidays.insertMulti("2010-06-01", "A national public holiday");
> holidays.insertMulti("2010-06-01", "A minor religious holiday");
> setData(request, holidays);
>
> What gets returned to the client is only the second value for the minor religious \
> holiday, so the public holiday doesn't appear on the calendar.
> This is because the call to setData() loops through each value in the passed in \
> DataEngine::Data and calls DataContainer::setData(), which inserts each value into \
> a new DataEngine::Data, in the process discarding any previous multiple values.
> This patch uses insertMulti() in the DataContainer::setData() to fix this. I can't \
> think of anything this would break by changing the behaviour to retain any \
> multiples, they can only get there in the first place by the DataEngine explicitly \
> calling insertMulti() so I think it's safe to assume the coder wants them kept.
> The alternative would be to create new DataEngine::setMultiData() and \
> DataContainer::setMultiData() methods.
>
> Diffs
> -----
>
> /trunk/KDE/kdelibs/plasma/datacontainer.cpp 1134380
>
> Diff: http://reviewboard.kde.org/r/4235/diff
>
>
> Testing
> -------
>
> Without the patch, holidays disappear between the calendar data engine and the \
> calendar plasmoid. With the patch all the holidays make it and can be treated \
> differently according to type.
>
> Thanks,
>
> John
>
>
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