Merge pull request #538 from performant-software/bugfix/sql-dump

Fix two bugs with connecting to the database during export sql dump

app/workers/export_project_worker.rb

@@ -315,11 +315,11 @@ def get_sql_records
     }
     manifest_yml = Tempfile.new("manifest.yml")
     File.write(manifest_yml.path, manifest.to_yaml)
+    dbname = ENV["DATABASE_URL"] ? ENV["DATABASE_URL"].split('/')[-1] : Project.connection.current_database
     TableSaw.configure({
       manifest: manifest_yml.path,
-      dbname: Project.connection.current_database,
+      dbname: dbname,
     })
-    ::ActiveRecord::Base.establish_connection(TableSaw.configuration.connection)
     TableSaw::DependencyGraph::Build.new(TableSaw::Manifest.instance).call
   end
 end