/* * Copyright 2012-2018 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.springframework.samples.petclinic.owner; import org.springframework.samples.petclinic.visit.Visit; import org.springframework.samples.petclinic.visit.VisitRepository; import org.springframework.stereotype.Controller; import org.springframework.validation.BindingResult; import org.springframework.web.bind.WebDataBinder; import org.springframework.web.bind.annotation.*; import javax.validation.Valid; import java.util.Map; /** * @author Juergen Hoeller * @author Ken Krebs * @author Arjen Poutsma * @author Michael Isvy * @author Dave Syer */ @Controller class VisitController { private final VisitRepository visits; private final PetRepository pets; public VisitController(VisitRepository visits, PetRepository pets) { this.visits = visits; this.pets = pets; } @InitBinder public void setAllowedFields(WebDataBinder dataBinder) { dataBinder.setDisallowedFields("id"); } /** * Called before each and every @RequestMapping annotated method. * 2 goals: * - Make sure we always have fresh data * - Since we do not use the session scope, make sure that Pet object always has an id * (Even though id is not part of the form fields) * * @param petId * @return Pet */ @ModelAttribute("visit") public Visit loadPetWithVisit(@PathVariable("petId") int petId, Map model) { Pet pet = this.pets.findById(petId); model.put("pet", pet); Visit visit = new Visit(); pet.addVisit(visit); return visit; } // Spring MVC calls method loadPetWithVisit(...) before initNewVisitForm is called @GetMapping("/owners/*/pets/{petId}/visits/new") public String initNewVisitForm(@PathVariable("petId") int petId, Map model) { return "pets/createOrUpdateVisitForm"; } // Spring MVC calls method loadPetWithVisit(...) before processNewVisitForm is called @PostMapping("/owners/{ownerId}/pets/{petId}/visits/new") public String processNewVisitForm(@Valid Visit visit, BindingResult result) { if (result.hasErrors()) { return "pets/createOrUpdateVisitForm"; } else { this.visits.save(visit); return "redirect:/owners/{ownerId}"; } } }