[Qgis-user] Relation widget values

[Nyall Dawson]

On Sat, 14 Mar 2020 at 07:54, Régis Haubourg <regis.haubourg at gmail.com> wrote:
>
> Hi,
> No workaround. QGIS makes relations on the tables that are loaded in QGIS. You will always need both tables.

That's correct, but I believe in 3.12 Alessandro improved this so that
the dependent tables are automatically loaded when the qlr itself is
loaded.

Nyall

> Régis
>
> Le ven. 13 mars 2020 à 21:21, Jean-Philippe Chenel <jp.chenel at live.ca> a écrit :
>>
>> Hi,
>>
>> I've a question regarding the Value Relation Widget under Layer Properties/Attributes Forms. Making the configuration work very well to bind a field to a list of values of another table in the project.
>>
>> When all is done, I make a qlr file to save all the layer definitions.
>>
>> The problem appears when I reload the qlr file without all the relational tables. The fields are bound, but the values aren’t displayed. To make this work, I need to add the relational tables to the project too.
>>
>> Does it have a workaround or an alternative to make it work without adding all the tables to the project? I saw in the qlr file that the connection to postgresql and all needed information are in the file to make it work.
>>
>> Database: postgresql 9.6
>> QGIS version 3.10.3
>> Layers and tables are in the database.
>>
>> With best regards,
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