Add role functions

main.go

@@ -190,6 +190,48 @@ func Bump(username string) {
 		log.Printf("scsusers.Bump: Error on user bump: %s : %s\n", username,  err.Error())
 	}
 }
+
+func GetRoles(username string) []string {
+	var roles []string
+	q:=fmt.Sprintf(`select role_name from %s_roles 
+			left join %s_user_roles on %s_roles.role_id=%s_user_roles.role_id 
+			left join %s_auth on %s_user_roles.user_id=%s_auth.user_id 
+			where %s_auth.username=?`, c.TablePrefix, c.TablePrefix, c.TablePrefix, c.TablePrefix, c.TablePrefix, c.TablePrefix, c.TablePrefix)
+	err:=c.db.Select(&roles,q, username)
+	if err != nil {
+		log.Printf("scsusers.GetRoles: %s : %s\n", username, err.Error())
+	}	
+	return roles
+}
+
+func HasRole(username string, role string) bool {
+	roles:=GetRoles(username)
+	for _,a:=range(roles) {
+		if a==role {
+			return true
+		}
+	}
+	return false
+}
+
+func AddRole(username string, role string) bool {
+	if HasRole(username, role) {
+		return true
+	}
+	q:=fmt.Sprintf(`insert into %s_user_roles (user_id, role_id) 
+		VALUES (
+			(select userid from %s_auth where username=?), 
+			(select role_id from %s_roles where role_name=?)
+			);
+		`, c.TablePrefix, c.TablePrefix, c.TablePrefix)
+	_, err:=c.db.Exec(q)
+	if err != nil {
+		log.Printf("scsusers.AddRole: %s %s %s\n", username, role, err.Error())
+		return false
+	}
+	return true
+}
+
 func RecoverByUsername(u string) {
 	var username, email string
 	q:=fmt.Sprintf("select username, email from %s_auth where username=$1", c.TablePrefix)
@@ -350,6 +392,7 @@ func SetAlertTemplate(t string) bool {
 	return false
 }
 
+
 func SetRecoveryTemplate(t string) bool {
 	if len(t) != 0 {
 		r, err := template.New("recovery").Parse(t)