[QGIS-Developer] QGIS Server 2.x and caching question

[Andreas Neumann]

Hi René-Luc, 

Thanks for the reply. Good to know that we are not the only ones
struggling with such issues. 

Is this known issue in QGIS 2.x only or also in QGIS 3.x? 

I will also have a look at the Layer Board plugin and see what it does
and how it could help us. 

Thanks, 

Andreas 

On 2019-06-12 10:02, René-Luc Dhont wrote:

> Hi Andreas,
> 
> It's a known issue. It is not easy to understand because it's due to SHADOW layers...
> Some times, QGIS keeps some undisplayed layers with the same UUID and stored it in the QGIS project.
> 
> You can use Layer Board plugin to remove them.
> 
> Regards,
> René-Luc
> 
> Le 11/06/2019 à 18:28, Andreas Neumann a écrit : 
> 
>> Hi all, 
>> 
>> At my new work place we are running a 2.x QGIS server  which in two projects behaves very strange: sometimes colors display in the color we expected, sometimes really light. Then my colleagues discovered that more than rules share the same UUID identifier, because the QGS files have been copy pasted into a anew project and then aggregated again into the same single project. 
>> 
>> Not knowing about the internals of QGIS server 2x (and 3x) I wonder if this something we need to avoid? Are the UUID identifiers of a symbology rule relevant and absolutely need to be unique? Do we have to avoid such id clashes? 
>> 
>> The "human readable" nature of qgs/qml files naturally seduce people to copy / paste and mix project stuff together in text editors ... 
>> 
>> Thank you for your feedback on this topic. 
>> 
>> Andreas 
>> 
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