[Qgis-user] Editing attributes in embedded forms
Bo Victor Thomsen
bo.victor.thomsen at gmail.com
Thu Jun 3 01:29:50 PDT 2021
There is something odd about how QGIS fetches values from the sequence:
The error message states that :
/2021-06-03T09:22:31 WARNING //Erroneous query: SELECT
nextval("sample_point_fid_seq"::regclass) returned 7 [ERROR: column
"sample_point_fid_seq" does not exist/
/ LINE 1: SELECT nextval("sample_point_fid_seq"::regclass)/
^
However - a correct call to the "nextval" function should loke like this:
*SELECT nextval('sample_point_fid_seq'::regclass)*
*Not* like this ( " contra ') :
*SELECT nextval("sample_point_fid_seq"::regclass)*
So the call fails twice : It calls a non-existing sequence and the
function argument should be 'sample_point_fid_seq'::regclass , not
"sample_point_fid_seq"::regclass
Med venlig hilsen / Kind regards
Bo Victor Thomsen
Den 03-06-2021 kl. 08:23 skrev Pekka Sarkola:
> Hi,
> You repeat this "ERROR: column "sample_point_fid_seq" does not exist"
> -problem with:
> Create very simple table to PostGIS (choose your own CRS):
>
> CREATE TABLE IF NOT EXISTS sample_point
> (
> fid integer NOT NULL GENERATED ALWAYS AS IDENTITY,
> wkb_point geometry(Point,3067),
> name varchar,
> CONSTRAINT sample_point_pk PRIMARY KEY (fid)
> );
>
> Add table to QGIS. Editing works, without errors.
>
> If you tick on from project properties: "Evaluate default values on
> provider side", error will happen:
>
> 2021-06-03T09:22:31 WARNING Erroneous query: SELECT
> nextval("sample_point_fid_seq"::regclass) returned 7 [ERROR:
> column "sample_point_fid_seq" does not exist
>
> LINE 1: SELECT nextval("sample_point_fid_seq"::regclass)
>
> ^
>
> ]
>
> Rgs,
>
> Pekka
>
> Pekka Sarkola
> Gispo Oy
> pekka.sarkola at gispo.fi <mailto:pekka.sarkola at gispo.fi> - GSM +358
> 40 725 2042
> www.gispo.fi <http://www.gispo.fi/>– www.paikkatieto.com
> <http://www.paikkatieto.com/>
>
>
>
> to 3. kesäk. 2021 klo 8.47 Pekka Sarkola (pekka at gispo.fi
> <mailto:pekka at gispo.fi>) kirjoitti:
>
> Hi Alexandre et al,
>
> I re-create a database (sample one), create a new QGIS project,
> add layers => same error. Maybe I open an issue in Github and I
> can share more SQL and snapshots.
>
> Rgs,
>
> Pekka
>
> Pekka Sarkola
> Gispo Oy
> pekka.sarkola at gispo.fi <mailto:pekka.sarkola at gispo.fi> - GSM
> +358 40 725 2042
> www.gispo.fi <http://www.gispo.fi/>– www.paikkatieto.com
> <http://www.paikkatieto.com/>
>
>
>
> ti 1. kesäk. 2021 klo 16.36 Alexandre Neto (senhor.neto at gmail.com
> <mailto:senhor.neto at gmail.com>) kirjoitti:
>
> From that last error...
>
> Are you sure your table was not changed after being loaded to
> QGIS? It seems to expect a sequence that no longer exists.
>
> Alexandre Neto
>
> A terça, 1/06/2021, 12:22, Pekka Sarkola <pekka at gispo.fi
> <mailto:pekka at gispo.fi>> escreveu:
>
> Hi Andreas,
>
> Trasnsactions groups are enabled: editing is working (not
> in embedded forms) as expected.
>
> If I enable "Evaluate default values.."-option, I will get
> error:
>
> 2021-06-01T14:11:44 WARNING Erroneous query: SELECT
> nextval("sample_point_fid_seq"::regclass) returned 7
> [ERROR: column "sample_point_fid_seq" does not exist
> LINE 1: SELECT
> nextval("sample_point_fid_seq"::regclass)
>
> Primary key of the geometry table is "fid" and it has been
> defined as IDENTITY column (fid integer NOT NULL GENERATED
> ALWAYS AS IDENTITY ( INCREMENT 1 START 1 MINVALUE 1
> MAXVALUE 2147483647 CACHE 1 ).
>
> I presume this evaluation of the default values is not the
> solution for this case.
>
> Rgs,
>
> Pekka
>
> Pekka Sarkola
> Gispo Oy
> pekka.sarkola at gispo.fi <mailto:pekka.sarkola at gispo.fi>-
> GSM +358 40 725 2042
> www.gispo.fi <http://www.gispo.fi/>– www.paikkatieto.com
> <http://www.paikkatieto.com/>
>
>
>
> ti 1. kesäk. 2021 klo 11.10 Andreas Neumann
> (a.neumann at carto.net <mailto:a.neumann at carto.net>) kirjoitti:
>
> Hi Pekka,
>
> Have you enabled the transaction mode in your project?
>
> See menu "Project" --> "Properties" --> "Data Sources".
>
> I usually enable all three check boxes:
>
> - Automatically create transaction groups where possible
>
> - Evaluate default values on provider side
>
> - Trust project when data source has no metadata
>
> The transaction mode allows to edit all layers from
> the same data base connection (needs identical db
> connection string and credentials) and - together with
> "evaluate default values on provider side" -
> immediately retrieves primary keys from the DB, so
> that you can link objects immediately, without having
> to save first.
>
> Greetings,
>
> Andreas
>
> On 2021-06-01 09:55, Pekka Sarkola wrote:
>
>> Hi folks!
>> I have a problem editing feature attributes in
>> embedded forms. Data is stored in PostGIS and I have
>> a simple 1:1 relationship with the geometry table and
>> an additional attribute table. QGIS version is 3.18.3
>> on Ubuntu.
>> I have created a custom form with a drag-and-drop
>> designer. I can edit additional attribute table
>> attributes in embedded form, but those edits are not
>> stored anywhere. I have to open a separate form and
>> then edit attribute values of the related attribute
>> table. This is quite annoying for the end user.
>> Any suggestions? Or should I write a better
>> description to the Github?
>> Rgs,
>> Pekka
>>
>> Pekka Sarkola
>> Gispo Oy
>> pekka.sarkola at gispo.fi
>> <mailto:pekka.sarkola at gispo.fi>- GSM +358 40 725 2042
>> www.gispo.fi <http://www.gispo.fi/>–
>> www.paikkatieto.com <http://www.paikkatieto.com/>
>>
>>
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