[QGIS-Developer] Getting the values of other algorithms and parameters in processing's modeller

[Alexander Bruy]

Hi Tim,

if I understand you correctly, this already implemented. When you edit an
expression
in the modeler algorithm all model inputs are available as variables in the
expression
editor.

пн, 11 лист. 2019 о 16:17 Tim Sutton <tim at kartoza.com> пише:

> Hi All
>
> I am trying to automate some tedious tasks of remapping fkey references
> for tables in a GeoPackage database from the related table’s id column to
> the related table’s uuid column.
>
> I can do the process manually by opening the table, using field calculator
> and creating a new column ‘water_source_uuid’ with an expression like this:
>
> attribute(
>    get_feature( 'water_source_lookup', 'id', water_source_id), 'uuid’)
>
>
> Now being a lazy bugger, I thought I would try to automate the process for
> the other columns and tables that need such treatment.
>
>
>
>
>
> NowI thought I could write a little expression that pulls out the name of
> the layer defined by the user in “Data Table” and the name of the column
> defined by the user in  "Foreign Key Column” and then interpolate those
> values into my add column expression….
>
> So my question is: is there any way to reference other inputs in a model
> from an expression?
>
> Regards
>
> Tim
>
>
>
>
>
>
>
>
> —
>
>
>
>
>
>
>
>
>
>
> *Tim Sutton*
>
> *Co-founder:* Kartoza
> *Ex Project chair:* QGIS.org
>
> Visit http://kartoza.com to find out about open source:
>
> Desktop GIS programming services
> Geospatial web development
> GIS Training
> Consulting Services
>
> *Skype*: timlinux
> *IRC:* timlinux on #qgis at freenode.net
>
> I'd love to connect. Here's my calendar link
> <https://calendly.com/timlinux> to make finding time easy.
>
> _______________________________________________
> QGIS-Developer mailing list
> QGIS-Developer at lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer



-- 
Alexander Bruy
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20191112/9f6345af/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Screenshot 2019-11-11 at 10.19.38.jpg
Type: image/jpeg
Size: 49959 bytes
Desc: not available
URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20191112/9f6345af/attachment-0002.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: KartozaNewLogoThumbnail.jpg
Type: image/jpeg
Size: 6122 bytes
Desc: not available
URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20191112/9f6345af/attachment-0003.jpg>