[QGIS-Developer] two issues in QGIS (Server and print composer) 2.18.10(?)

[João Gaspar]

Hi again,

 i switch the result test in QGIS Server 2.18.11.

Where is written:

"
QGIS Server 2.18.11 64-bits
Print with label text - OK
Print without label text - "Internal Server Error"


I want to say:

QGIS Server 2.18.11 64-bits
Print with label text - "Internal Server Error"
Print without label text -  "Internal Server Error"OK

Sorry

João Gaspar

2017-07-27 10:59 GMT+01:00 João Gaspar <joao.f.r.gaspar at gmail.com>:

> Hi,
> same issue where.
>
> Test Environment OS:
> Windows 7 64-bits
>
> QGIS Server 2.14.16 LTR
> Print with label text - OK
> Print without label text - OK
>
> QGIS Server 2.18.9 64-bits
> Print with label text - OK
> Print without label text - OK
>
>
> QGIS Server 2.18.11 64-bits
> Print with label text - OK
> Print without label text - "Internal Server Error"
>
>
> I attach a zip file with detail information (logs and .qgs 2.18.9
> project  to test) in the qgis bug tracker: https://issues.qgis.org/
> issues/15440
>
>
> Cheers
> João Gaspar
>
>
>
>
>
> 2017-07-20 23:38 GMT+01:00 Giovanni Manghi <giovanni.manghi at gmail.com>:
>
>> Hi Nyall,
>>
>>
>>
>> > It'll be https://github.com/qgis/QGIS/commit/1b4bd47076103e931e642c9c
>> 2b6a363f14b20a45
>> > which removed the None option.
>> >
>> > ...HOWEVER...
>> >
>> > I'm having a lot of trouble trying to understand what the correct
>> > server logic is here. Is it:
>> >
>> > - if a getprint request is made without any layers specified then all
>> > layers are shown in both the map and legend
>>
>> as far as I remember if no layers are specified in the request then no
>> layers are shown in the map (not sure about the legend)
>>
>>
>>
>> > - if layers are specified then:
>> >   - legend set to a map: ONLY those layers should be shown in the map
>> and legend
>>
>> yes, actually as you may have seen form my examples, for layers that
>> are not listed in the request their name shows anyway in the legend
>> (without the ssymbology symbols or classes).
>>
>>
>> >   - legend set to None: only shown those layers in the map, but
>> > EVERYTHING in the legend
>> > ?
>>
>> yes
>>
>>
>>
>> The latter has/had a clear purpose, be able to to print via getprint a
>> map + a fixed legend, regardless
>> of the enabled/disabled layers, exactly as it happens when you print
>> from QGIS Desktop.
>>
>>
>>
>> > If so, I'd say that's unpredictable, opaque behavior and needs to be
>> > fixed in the UI.
>> >
>> > Possible options would be:
>> >
>> > 1. adding a server settings section to the legend properties, with a
>> > checkbox "always show all layers (Regardless of requested layers)" (or
>> > betterly worded!)
>> >
>> > 2. Taking advantage of the existing "filter legend by map" option to
>> > handle this use case (which should already be supported in 2.x - it
>> > just needs that setting switched on in your projects). The only
>> > downside here is that if a layer is requested but has no features
>> > visible in the extent then it won't be shown in the legend. (That's
>> > arguably the correct cartographic behaviour though!)
>> >
>> > I don't think the "none" option should be brought back, as it makes
>> > legend behaviour unpredictable in itself. E.g. what scale should the
>> > legend use for symbols with map unit sizes? What preset style should
>> > it use?
>>
>>
>>
>> option 1 seems good to me, anyway whatever the solution this should be
>> treated as a priority/bad regression as it broke a very basic
>> necessity when we do (for example) webgis with QWC or Lizmap.
>>
>>
>>
>> thanks in advance and for understanding
>>
>>
>> cheers!
>>
>> -- G --
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>
>
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