It appears that postgis database connection require username/password stored

[aileenh]

When using pgrouting layer plugin with QGIS it appears that it will only display databases in the pgRouting Layer panel if the username and password is stored in the connection.

Can you confirm if my understanding is correct?

[cvvergara]

Yes that is correct due to the fact that pgRoutingLayer does not ask for user/password

[aileenh]

This is a bit of a security issue. Could the plugin not use the connection assuming the user has connect (and logged in) to the database via QGIS.