fix role commands

internal/database/guild.go

@@ -113,8 +113,8 @@ func (s guildService) GetOrCreateGuild(id string) (geeksbot.Guild, error) {
 }
 
 func (s guildService) CreateOrUpdateRole(r geeksbot.Role) (geeksbot.Role, error) {
-	role, err := s.Role(r.ID)
+	role, err := s.CreateRole(r)
-	if err.Error() == `pq: duplicate key value violates unique constraint "roles_pkey"` {
+	if err != nil && err.Error() == `pq: duplicate key value violates unique constraint "roles_pkey"` {
 		role, err = s.UpdateRole(r)
 	}
 	return role, err

internal/exts/guild/roles.go

@@ -37,6 +37,9 @@ func addModeratorRoleCommandFunc(ctx disgoman.Context, args []string) {
 			if _, ok := added[id]; ok {
 				continue
 			}
+			if _, err = ctx.Session.State.Role(ctx.Guild.ID, id); err != nil {
+				_, _ = ctx.Send(fmt.Sprintf("%s does not reference a valid role for this guild.", id))
+			}
 			_, err := services.GuildService.CreateOrUpdateRole(geeksbot.Role{
 				ID:       id,
 				RoleType: "moderator",
@@ -83,6 +86,9 @@ func addAdminRoleCommandFunc(ctx disgoman.Context, args []string) {
 			if _, ok := added[id]; ok {
 				continue
 			}
+			if _, err = ctx.Session.State.Role(ctx.Guild.ID, id); err != nil {
+				_, _ = ctx.Send(fmt.Sprintf("%s does not reference a valid role for this guild.", id))
+			}
 			_, err := services.GuildService.CreateOrUpdateRole(geeksbot.Role{
 				ID:       id,
 				RoleType: "admin",