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

[Matthias Kuhn]

Nicolas,

Sorry I forgot: you will probably also need to enable transactional
editing and set the foreign key constraint check to deferred to make it
work properly.

Regards
Matthias

On 11/08/2016 02:08 PM, Nicolas Boisteault wrote:
> 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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