Prevent creation of recursive models (or provide solution to break out of loops)

[qgib]

Author Name: Anita Graser (@anitagraser)
Original Redmine Issue: 9909
Affected QGIS version: 2.4.0
Redmine category:processing/modeller
Assignee: Victor Olaya

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Currently, it is possible to include the model itself into the model workflow thus creating a model which calls itself. Of course this causes errors.

[qgib]

Author Name: Victor Olaya (@volaya)

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mmm, actually it shouldn't cause error. The modeler is designed to allow nested models. So it's a bug, but the solution is not removing models in the list of algorithms in the model, but fixing it.

[qgib]

Author Name: Anita Graser (@anitagraser)

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Sorry for being unclear :-)

It's great that modeler allows nested models! I just wanted to suggest that it might make sense to check if the user is creating circular references in his models. If model A calls model A to get to its results, it won't ever stop, or is there a way to break out of such loops?

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• subject was changed from It's possible to create recursive models to It's possible to stop recursive models?

[qgib]

Author Name: Anita Graser (@anitagraser)

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• subject was changed from It's possible to stop recursive models? to Prevent creation of recursive models (or provide solution to break out of loops)

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• category_id removed 64
• crashes_corrupts_data was configured as 0
• version was configured as 2.4.0
• project_id was changed from 78 to 17

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• category_id was configured as Processing/Modeller

[qgib]

Author Name: Victor Olaya (@volaya)

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fixed in #a549ded47bf6bfebc050d64502ac3dc8b9e921d6

[qgib]

Author Name: Victor Olaya (@volaya)

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• status_id was changed from Open to Closed

[YoannQDQ]

This still crashes QGIS (3.30)