Objects queried by QuickOSM are not automatically saved in project file and lost when re-starting QGIS (3)

[qgib]

Author Name: Sebastian Ernst (@s-m-e)
Original Redmine Issue: 19038
Affected QGIS version: 3.0.1
Redmine category:vectors

---

Reproducible in the following environments

• QGIS 3.0.1 on openSUSE Leap 15 + QuickOSM 1.6.1
• QGIS 3.0.3 on Linux Mint 18.3 + QuickOSM 1.6.1

1. Steps to reproduce

• Start QGIS 3
• Menu: Project > New
• Menu: Web > QuickMapServices > OSM > OSM Standart [optional step for OSM background tiles]
• Menu: Vector > Quick OSM > QickOSM
• Set query parameters to: {key: leisure, value: park, in: Leipzig}
• Run query ...
• Result so far: 3 new layers (with 599, 98 and 128 objects)
• Menu: Project > Save as ... "test.qgs"
• Menu: Project > Quit QGIS
• At this point, QGIS will ask: "Save current project?" I chose "Save".
• Start QGIS again
• Open "test.qgs" - all three new layers exist, but they contain ZERO objects

1. Workaround?

After saving the project and before closing QGIS, save every new layer as a geo package. This way, I at least do not loose the polygons although the layers created by QuickOSM will be empty after re-starting QGIS.

1. Question

Is is a bug in QuickOSM or QGIS or both? Or is this some sort of new intended behavior in QGIS 3?

For reference, I also filed an issue against QuickOSM: 3liz/QuickOSM#115

[qgib]

Author Name: Etienne Trimaille (@Gustry)

---

This issue tracker is related to QGIS software, not for plugin. This issue can closed.

[qgib]

Author Name: Sebastian Ernst (@s-m-e)

---

Etienne Trimaille wrote:

This issue tracker is related to QGIS software, not for plugin. This issue can closed.

I understand that. Given the above description, I do not know who is at fault. Is it QGIS or is it the plugin? The plugin fetches the objects - only. QGIS fails to save them to disk.

[qgib]

Author Name: Etienne Trimaille (@Gustry)

---

The plugin creates memory layer. QGIS is not able to save memory layer. I agree QGIS should have a warning when we save this kind of layers.

[qgib]

Author Name: Alessandro Pasotti (@elpaso)

---

Lowering priority for now, I think it should be closed in favor of opening an issue against the plugin.

---

• priority_id was changed from Normal to Low

[qgib]

Author Name: Etienne Trimaille (@Gustry)

---

It's not QuickOSM fault. It's stated in the UI, in the advanced panel, when you execute the query: "save to temporary files".
It's exactly the same behavior with QGIS Processing creating temporary layers.

QGIS should display a warning when we save a QGS project and:

• layers are stored in the temporary folder (/tmp etc)
• layers are in memory (source: Point?crs=EPSG:4326&field=full_id:.....&uid={2e18cdf3-f07b-42be-9911-e5d01584da57} )

[qgib]

Author Name: Nyall Dawson (@nyalldawson)

---

Fixed in master and 3.2.2

---

• resolution was changed from to fixed/implemented
• status_id was changed from Open to Closed