[Qgis-user] qgis-server vs layer id

[Andreas Neumann]

Hi,

I would prefer if this issue could be fixed within QGIS Server. I also 
have the same problem when copying projects.

We could combine this effort with a more persistent project/layer cache 
of QGIS server, so the cache would survive Apache restarts.

I would be available for co-financing if others would join the effort.

Andreas

On 09.04.2015 08:53, Nathan Woodrow wrote:
> Hey Burghardt,
>
> As a workaround for now it's pretty easy to read the xml file and 
> replace the layer ids using Python.  QGIS doesn't care about the 
> format of the id as long as it's a strings so you could replace them 
> all with a GUID if you wanted.
>
> - Nathan
>
> On Thu, 9 Apr 2015 at 16:46 <Burghardt.Scholle at stadt.wolfsburg.de 
> <mailto:Burghardt.Scholle at stadt.wolfsburg.de>> wrote:
>
>     Dear list,
>
>     I enjoy working with templates for QGIS projects. This brings when
>     working with QGIS Desktop many advantages, but leads to problems
>     with the QGIS Web Client. When I save a project file under a
>     different name, the id of the layer, unfortunately, is maintained.
>     If I use both project files in the qgis-server, this creates
>     problems with caching of layer. That is particularly evident when
>     identical layer named differently or otherwise be symbolized.
>     This topic is discussed on several occasions in the past [1,2] and
>     has been referred to as "bug" or "limitation". In [2] it's said
>     that the combination of project name and layer ID could be a
>     solution for the problem. Up to and including version 2.8.1, the
>     change has not yet been carried out. Is there an effort to change
>     the creation of the layer ID in a future release?
>
>     Kind regards
>     Burghardt
>
>     [1]
>     http://osgeo-org.1560.x6.nabble.com/Qgis-server-returns-map-from-another-project-that-is-defined-in-URL-td5153101.html#a5153150
>     [2] http://hub.qgis.org/issues/7956
>
>     ***************
>     mailto:burghardt.scholle at stadt.wolfsburg.de
>     <mailto:burghardt.scholle at stadt.wolfsburg.de>
>
>
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