public async Task <IActionResult> CreateServiceType(ServiceTypeInputModel model)
        {
            this.FillServiceUnifiedModel();
            if (!this.ModelState.IsValid)
            {
                return(this.View("Create", this.unifiedModel));
            }

            var serviceType = new CreateServiceTypeServiceModel
            {
                Name            = model.ServiceTypeName,
                Description     = model.ServiceTypeDescription,
                IsInDevelopment = model.IsShownInMainMenu,
            };

            await this.serviceTypesService.CreateAsync(serviceType);

            return(this.RedirectToAction("Create", this.unifiedModel));
        }
        //--------------- METHODS -----------------
        /// <summary>
        /// Creates a new <see cref="ServiceType"/> using the <see cref="CreateServiceTypeServiceModel"/>.
        /// If such <see cref="ServiceType"/> already exists in the database, fetches it's (int)<c>Id</c> and returns it.
        /// If such <see cref="ServiceType"/> doesn't exist in the database, adds it and return it's (int)<c>Id</c>.
        /// </summary>
        /// <param name="model">Service model with <c>Name</c> and <c>Description</c></param>
        /// <returns>ServiceType ID</returns>
        public async Task <int> CreateAsync(CreateServiceTypeServiceModel model)
        {
            int serviceTypeId = this.dbContext.ServiceTypes.Where(d => d.Name == model.Name)
                                .Select(x => x.Id)
                                .FirstOrDefault();

            if (serviceTypeId != 0)   // If serviceTypeId is different than 0 (int default value), serviceType with such name already exists, so return it's id.
            {
                return(serviceTypeId);
            }

            ServiceType serviceType = new ServiceType
            {
                Name              = model.Name,
                Description       = model.Description,
                IsShownInMainMenu = model.IsInDevelopment,
            };

            await this.dbContext.ServiceTypes.AddAsync(serviceType);

            await this.dbContext.SaveChangesAsync();

            return(serviceType.Id);
        }