Layer Functionality
Layer options are not available
Layer options such as search, filter, report, table view and download are available only for layers that are configured as vector layers.
If the layer is suitable for configuring as a vector layer (see here), enable the layer for WFS as follows:
Project > Properties > QGIS Server > WFS/OAPIF > tick ‘Published’ for the layer
Features are not selectable
If the polygon fill style is set to ‘No brush’, it will prevent users from being able to select a polygon when clicking within the polygon.
To display a polygon with an empty fill while still enabling users to select the polygon, use the ‘Solid’ fill, and set the opacity of the fill color to a low or zero value. See vector polygon styling.
Selected features are displayed with a mis-shaped highlight
It’s possible that the GetFeatureInfo response coordinates do not have enough precision.
Open the affected QGIS project(s), go to Project > Properties > QGIS Server > WMS Capabilities > GetFeatureInfo geometry precision, and set it to 8 decimal places.
Layers are slow to load
Consider using WMS instead of WFS
If a layer is being served via WFS, the load time will be proportional to how large the source dataset is. Layers with a large number of records or complex shapes may not be suitable for loading as a vector layer in the browser.
Consider using WMS for your layer. If you disable WFS, Pozi will instead use WMS, enabling it to render layers efficiently for the user’s current map view without loading the entire dataset.
Check source data
Use QGIS to determine whether the layer also causes its project file to load slowly. Observe the progress bar at the bottom to see if any layers are taking more than a fraction of a second to load in QGIS. If it appears that a layer is taking longer, check the source data. If it’s from a database view, check that any join fields are properly indexed.
See Performance Testing.
Table view option is not available
Layers must be enabled as a vector layer in order to access the table view.
If you’ve already enabled a layer for WFS, and the table view option is still not available, it may be because the layer shares the same name as a layer folder. Rename the layer or folder so they are unique.
Fields are missing in layer statistics
The statistics report that is optionally included in the Print output displays statistics for a layer’s numeric fields only. If the layer has non-numeric fields, those fields will not be included in the report.
If you are expecting a field to be included in the report, and the source data is not numeric, you can configure a virtual field in the layer properties. This will create a virtual field in QGIS that converts the non-numeric value to numeric.
Other types of issues with layer behaviour can be caused by duplicate layer names. See Naming Layers for more information.
If the Layer Panel shows a that a layer has loaded (ticked on), but it is not visible on the map, check the Layer Appearance troubleshooting page.
For further assistance, contact your Pozi support provider’s helpdesk.