public async Task <int> UpdateEquipment(int id, EquipmentInfoVM equipment)
        {
            TblEquipment equipmentModel = await _context.TblEquipments.FindAsync(id);

            if (equipmentModel == null)
            {
                return(-1);
            }
            equipmentModel.EquipmentName     = equipment.EquipmentName;
            equipmentModel.EquipmentQuantity = equipment.EquipmentQuantity;
            equipmentModel.EquipmentImage    = equipment.EquipmentImage;
            equipmentModel.EquipmentDes      = equipment.EquipmentDes;

            _context.Entry(equipmentModel).State = EntityState.Modified;

            try
            {
                await _context.SaveChangesAsync();

                return(equipmentModel.EquipmentId);
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!EquipmentExists(id))
                {
                    return(-1);
                }
                else
                {
                    throw;
                }
            }
        }
        public async Task AddEquipment(EquipmentInfoVM equipment)
        {
            TblEquipment equipmentModel = new TblEquipment();

            equipmentModel.EquipmentName     = equipment.EquipmentName;
            equipmentModel.EquipmentImage    = equipment.EquipmentImage;
            equipmentModel.EquipmentDes      = equipment.EquipmentDes;
            equipmentModel.EquipmentQuantity = equipment.EquipmentQuantity;
            equipmentModel.EquipmentStatus   = Status.AVAILABLE;
            equipmentModel.EquipmentIsDelete = IsDelete.ACTIVE;
            // change here
            _context.TblEquipments.Add(equipmentModel);
            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateException)
            {
                throw;
            }
        }