Relation reference widget wrong feature when "on map identification"

[qgib]

Author Name: matteo ghetta (@ghtmtt)
Original Redmine Issue: 22071
Affected QGIS version: 3.4.6
Redmine category:edit_widget
Assignee: Alessandro Pasotti

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If confirmed I think something is really weird. In attach the complete project.

• line layer with ID field
• table layer with FK field
• 1:N relation between line ID (parent) and table FK (child)
• table FK widget type set (automatically) as "relation reference" and the "On map identification" checkbox checked
• adding a line in the table layer and clicking on the "identify on map" button
• the FK field of the table layer is set to line layer ID - 1 (so when the line ID is 2 the FK of the table is 1)

Verified with the same project in QGIS 3.4.6 and master

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• project.zip (matteo ghetta)
• ksnip_20190520-135720.png (matteo ghetta)
• ezgif.com-video-to-gif.gif (matteo ghetta)

[qgib]

Author Name: Alessandro Pasotti (@elpaso)

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I searched the whole code base but I cannot find any button labeled with "identify on map", let alone that I don't get how you can identify on map a table layer feature which has no geometry.

Can you please clarify?

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• status_id was changed from Open to Feedback

[qgib]

Author Name: matteo ghetta (@ghtmtt)

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Yep, see attached image.

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• 14960 was configured as ksnip_20190520-135720.png

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• ksnip_20190520-135720.png (matteo ghetta)

[qgib]

Author Name: Alessandro Pasotti (@elpaso)

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I said: "I cannot find any button labeled with "identify on map""

not that I cannot find the options to set "On map identification"

[qgib]

Author Name: matteo ghetta (@ghtmtt)

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I'm trying to identify geometric object FROM a geometryless table. I thought it make sense: if I want to identify a geometric pipe that belongs to a not spatial worker.

[qgib]

Author Name: Giovanni Manghi (@gioman)

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I'm also struggling to understand what is the issue and how replicate it.

[qgib]

Author Name: matteo ghetta (@ghtmtt)

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OK I try to be more clear:

• open the attached project
• a 1:N relation is already set up: Parent = Condotte Field = ID, Child = operai Field = FK
• the labels on the condotte layers are taken from ID field
• select operai and enter in the editing mode
• add another row in the table and, instead of entering manually in the FK field the ID of the condotte layer, click on the On map identification button
• when clicking on, for example, condotte with label (and ID) = 2, the FK field is filled with 1 (ID - 1). Therefore the relation is wrong

A gif in attach

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• 14965 was configured as ezgif.com-video-to-gif.gif

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• ezgif.com-video-to-gif.gif (matteo ghetta)

[qgib]

Author Name: Giovanni Manghi (@gioman)

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matteo ghetta wrote:

OK I try to be more clear:

• open the attached project
• a 1:N relation is already set up: Parent = Condotte Field = ID, Child = operai Field = FK
• the labels on the condotte layers are taken from ID field
• select operai and enter in the editing mode
• add another row in the table and, instead of entering manually in the FK field the ID of the condotte layer, click on the On map identification button
• when clicking on, for example, condotte with label (and ID) = 2, the FK field is filled with 1 (ID - 1). Therefore the relation is wrong

A gif in attach

Hi Matteo the gif is tiny, is not possible to read/see anything in it.

[qgib]

Author Name: matteo ghetta (@ghtmtt)

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OK here the link to the vieo that can be downloaded:

https://www.faunalia.eu/~matteo/qgis_bug/

[qgib]

Author Name: Alessandro Pasotti (@elpaso)

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• assigned_to_id was configured as Alessandro Pasotti
• status_id was changed from Feedback to Open

[qgib]

Author Name: Alessandro Pasotti (@elpaso)

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PR #10047

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• status_id was changed from Open to In Progress
• pull_request_patch_supplied was changed from 0 to 1
• resolution was changed from to fixed/implemented

[qgib]

Author Name: Alessandro Pasotti (@elpaso)

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Applied in changeset 2b14dac.

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• done_ratio was changed from 0 to 100
• status_id was changed from In Progress to Closed