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

[Matthias Kuhn]

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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