Created IndexModel for displaying the indexes on a table. Constraints can now show the SQL to drop and create them.

The keyword list is now directly based of the official keyword list from postgresql.

pglablib/PgConstraint.cpp

@@ -105,6 +105,30 @@ void operator<<(ForeignKeyAction &s, const Pgsql::Value &v)
 	}
 }
 
+QString ForeignKeyActionToString(ForeignKeyAction fka)
+{
+	QString result;
+	switch (fka) {
+	case ForeignKeyAction::NoAction:
+		result = "NO ACTION";
+		break;
+	case ForeignKeyAction::Restrict:
+		result = "RESTRICT";
+		break;
+	case ForeignKeyAction::Cascade:
+		result = "CASCADE";
+		break;
+	case ForeignKeyAction::SetNull:
+		result = "SET NULL";
+		break;
+	case ForeignKeyAction::SetDefault:
+		result = "SET DEFAULT";
+		break;
+	}
+
+	return result;
+}
+
 void operator<<(ForeignKeyMatch &s, const Pgsql::Value &v)
 {
 	const char *c = v.c_str();
@@ -121,6 +145,22 @@ void operator<<(ForeignKeyMatch &s, const Pgsql::Value &v)
 	}
 }
 
+QString ForeignKeyMatchToString(ForeignKeyMatch fkm)
+{
+	QString result;
+	switch (fkm) {
+	case ForeignKeyMatch::Full :
+		result = "FULL";
+		break;
+	case ForeignKeyMatch::Partial:
+		result = "PARTIAL";
+		break;
+	case ForeignKeyMatch::Simple:
+		result = "SIMPLE";
+		break;
+	}
+	return result;
+}
 
 
 PgConstraint::PgConstraint()