I'd like to approach this as 'support database urls in django', rather than
'copy/paste dj-database-url into django'. For postgres (I'm not sure about
other backends), a database url can be passed directly to psycopg2. The
postgres connection string format actually supports more features than is
possible with django's HOST/USER/PORT... style settings. For example, you
can pass multiple hosts and psycopg2 will attempt to connect to one of
them: https://paquier.xyz/postgresql-2/postgres-10-multi-host-connstr/. Any
attempt to parse the url in django will result in a loss of those features.
The only problem I see is that we have to parse the database backend out of
the url, and you can't pass a url like 'postgis://....' to psyscopg2. I'd
like to be able to do something like:
DATABASES = {
'default': {
'DSN': 'postgres://....',
'ENGINE': 'django.contrib.gis.db.backends.postgis',
},
}
And let psycopg2 handle the DSN.
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