[Qgis-user] Creating parent feature with geometry from child feature

[Nicolas Boisteault]

This is perfect! Thank you very much Matthias. 

Le 2016-11-08 12:45, Matthias Kuhn a écrit : 

> Go to the project properties and on the data sources tab check "evaluate
> default values on provider side".
> 
> Regards
> Matthias
> 
> On 11/08/2016 12:37 PM, Nicolas Boisteault wrote: Hi Matthias Kuhn,
> 
> First thank you very much for your help and your work on this feature
> There is room for improvement but this functionality is already great as it.
> 
> Another question. I also tried to add a station and an observation from
> the station form.
> 
> When creating, I have 'nextval('public.station_gid_seq'::regclass)' in
> the gid attribute and in the id_station attribute too which is good to me.
> 
> Now if i save the observation feature first it won't work because the
> station feature it refers doesn't exist. It is logical to me.
> 
> But if save the new station feature, it only save this feature and not
> the relative observation with the newly foreign created.
> 
> Is it a bug or a limitation? Thanks.
> 
> Le 2016-11-08 12:09, Matthias Kuhn a écrit :
> 
> Hi Nicolas,
> 
> This is a limitation of the current implementation.
> 
> You can either add a new station without geometry first and then select
> it in the attribute table and use the add part tool to add a geometry.
> 
> Or add it from its own layer and then link it to the parent observation.
> 
> I agree there is room for improvement.
> 
> Regards
> Matthias
> 
> On 11/08/2016 11:49 AM, Nicolas Boisteault wrote: 
> 
> Hi List,
> 
> I have two tables :
> 
> * station : gid, geom (point)
> * observation : id, id_station (foreign key)
> 
> There is a 1:N relation; for one station feature there are multiple
> observation features.
> 
> I add the relation between my two tables in QGIS -> project properties.
> I use the relation reference widget on id_station and check 'able the
> add of new entities' (not sure about my english translation)
> 
> So now when I create a new observation I can click the plus symbol to
> add a station but I can't see how I can create the point geometry. I'm
> not able to click the map.
> 
> Any hint? Thank you all.
> 
> -- 
> 
> Nicolas BOISTEAULT
> 
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