Added list of databases and roles.

Roles works for atleast 9.3 and up.

Reorganizing code for communicating with database.

src/PgAuthId.h

@@ -0,0 +1,32 @@
+#ifndef PGAUTHID_H
+#define PGAUTHID_H
+
+#include <pgsql/libpq-fe.h>
+#include <QString>
+#include <QDateTime>
+
+class PgAuthId {
+public:
+	PgAuthId();
+
+	Oid oid = InvalidOid;
+	QString name;
+	bool super;
+	bool inherit;
+	bool createRole;
+	bool createDB;
+	bool canlogin;
+	bool replication;
+	bool bypassRls;
+	int connLimit;
+	QDateTime validUntil;
+
+	bool valid() const { return oid != InvalidOid; }
+
+	bool operator==(Oid _oid) const { return oid == _oid; }
+	bool operator==(const QString &n) const { return name == n; }
+	bool operator<(Oid _oid) const { return oid < _oid; }
+	bool operator<(const PgAuthId &rhs) const { return oid < rhs.oid; }
+};
+
+#endif // PGAUTHID_H