Help icon at the left side of "pgr_f()" label doesn't work due to Python error

pgRouting / pgRoutingLayer

pgRouting Layer plugin for QGIS

https://qgis.pgrouting.org/

GNU General Public License v2.0

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Help icon at the left side of "pgr_f()" label doesn't work due to Python error #143

Open sanak opened 2 years ago

sanak commented 2 years ago

Problem Help icon at the left side of function dropdown doesn't work due to Python error

qgis-pgrouting-layer-help-error

To Reproduce

Click help (?) icon at the left side of pgr_f() label
Python error occurs

Expectation The errors should not happen and the help should be shown.

Platform/versions

OS: OSGeoLive 15 rc1
pgRoutingLayer: 3.0.1

sanak commented 2 years ago

Well, this error happen when DB connection doesn't exist (#140), but I think that it's better to catch KeyError exception safely, so I created the PR #145 for that.