PetController.java
/*
* Copyright 2012-2019 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
*
* https://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.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.util.StringUtils;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.*;
import javax.validation.Valid;
import java.util.Collection;
/**
* @author Juergen Hoeller
* @author Ken Krebs
* @author Arjen Poutsma
*/
@Controller
@RequestMapping("/owners/{ownerId}")
class PetController {
private static final String VIEWS_PETS_CREATE_OR_UPDATE_FORM = "pets/createOrUpdatePetForm";
private final PetRepository pets;
private final OwnerRepository owners;
public PetController(PetRepository pets, OwnerRepository owners) {
this.pets = pets;
this.owners = owners;
}
@ModelAttribute("types")
public Collection<PetType> populatePetTypes() {
return this.pets.findPetTypes();
}
@ModelAttribute("owner")
public Owner findOwner(@PathVariable("ownerId") int ownerId) {
return this.owners.findById(ownerId);
}
@InitBinder("owner")
public void initOwnerBinder(WebDataBinder dataBinder) {
dataBinder.setDisallowedFields("id");
}
@InitBinder("pet")
public void initPetBinder(WebDataBinder dataBinder) {
dataBinder.setValidator(new PetValidator());
}
@GetMapping("/pets/new")
public String initCreationForm(Owner owner, ModelMap model) {
Pet pet = new Pet();
owner.addPet(pet);
model.put("pet", pet);
return VIEWS_PETS_CREATE_OR_UPDATE_FORM;
}
@PostMapping("/pets/new")
public String processCreationForm(Owner owner, @Valid Pet pet, BindingResult result, ModelMap model) {
if (StringUtils.hasLength(pet.getName()) && pet.isNew() && owner.getPet(pet.getName(), true) != null){
result.rejectValue("name", "duplicate", "already exists");
}
owner.addPet(pet);
if (result.hasErrors()) {
model.put("pet", pet);
return VIEWS_PETS_CREATE_OR_UPDATE_FORM;
} else {
this.pets.save(pet);
return "redirect:/owners/{ownerId}";
}
}
@GetMapping("/pets/{petId}/edit")
public String initUpdateForm(@PathVariable("petId") int petId, ModelMap model) {
Pet pet = this.pets.findById(petId);
model.put("pet", pet);
return VIEWS_PETS_CREATE_OR_UPDATE_FORM;
}
@PostMapping("/pets/{petId}/edit")
public String processUpdateForm(@Valid Pet pet, BindingResult result, Owner owner, ModelMap model) {
if (result.hasErrors()) {
pet.setOwner(owner);
model.put("pet", pet);
return VIEWS_PETS_CREATE_OR_UPDATE_FORM;
} else {
owner.addPet(pet);
this.pets.save(pet);
return "redirect:/owners/{ownerId}";
}
}
}