Addind roles to user function

backend/handler/rbac.go

@@ -6,6 +6,25 @@ import (
 	"github.com/gofiber/fiber/v3"
 )
 
+func UpdateRoleToUser(c fiber.Ctx) error {
+	role := new(models.RoleUser)
+	if err := c.Bind().Body(role); err != nil {
+		return c.Status(400).JSON(fiber.Map{
+			"error": err.Error(),
+		})
+	}
+
+	err := repository.AssignRoleToUser(role.Email, role.RoleID)
+	if err != nil {
+		return c.Status(500).JSON(fiber.Map{
+			"error": err.Error(),
+		})
+	}
+	return c.Status(200).JSON(fiber.Map{
+		"message": "Role assigned to user successfully",
+	})
+}
+
 func InsertRoles(c fiber.Ctx) error {
 	role := new(models.Role)
 	if err := c.Bind().Body(role); err != nil {

backend/models/rbac.go

@@ -25,6 +25,11 @@ var Permissions = []string{
 	"delete:role",
 }
 
+type RoleUser struct {
+	Email  string `json:"email" validate:"required,email"`
+	RoleID string `json:"role_id" validate:"required"`
+}
+
 type Role struct {
 	ID          int
 	Name        string   `json:"name" validate:"required"`

backend/repository/rbac.go

@@ -24,6 +24,20 @@ func AddRoles(role *models.Role) error {
 	return nil
 }
 
+func AssignRoleToUser(email string, id string) error {
+	conn, err := database.Connect()
+	if err != nil {
+		return err
+	}
+
+	_, err = conn.Exec(context.Background(), "UPDATE users SET role = (SELECT id FROM roles WHERE id = $1) WHERE email = $2", id, email)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
 func FetchRoles(name string) ([]models.Role, error) {
 	conn, err := database.Connect()
 	if err != nil {