Export topology checker results as table/shapefile in QGIS

Question

I have used the plugin "topology checker" and I got table with all the topology errors :

I would like to save this table as new layer/ csv or any way I can export it.

I saw there were disccussion about it few years ago in github but couldn't find any feature to do that.

Is there any way to export this table?

Answer 1

Here is a bit of a hack I came up with which should do what you want. With the Topology Checker dock widget open and the table populated with some errors, open the Python console, paste the following code into an editor and run. Note* the only thing you need to do is edit the third line of the script to specify the file path to the location where you want the output CSV to be created and what you want it to be named.

Enjoy!

import csv

# Edit line below for your desired output location (the csv will be created)
out_path = 'C:\\Users\\Name\\Desktop\\Topology_errors.csv' # example

check_dock = iface.mainWindow().findChild(QDockWidget, 'checkDock')
main_widget = check_dock.findChild(QWidget, 'dockWidgetContents')
tbl = main_widget.findChild(QTableView, 'mErrorTableView')
out_file = open(out_path, 'w', newline='')

def export_errors(table, output):
    writer = csv.writer(output)
    mod = table.model()
    num_rows = mod.rowCount()
    num_cols = mod.columnCount()
    headers = []
    for n in range(num_cols):
        headers.append(mod.headerData(n, Qt.Horizontal))
    writer.writerow(headers)
    for i in range(num_rows):
        errors = []
        for j in range(num_cols):
            index = mod.index(i, j)
            errors.append(mod.data(index))
        writer.writerow(errors)


export_errors(tbl, out_file)
out_file.close()