/*
* Copyright 2012-2016 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 sample.web.ui.mvc;
import javax.validation.Valid;
import sample.web.ui.Message;
import sample.web.ui.MessageRepository;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;
/**
* @author Rob Winch
* @author Doo-Hwan Kwak
*/
@Controller
@RequestMapping("/")
public class MessageController {
private final MessageRepository messageRepository;
public MessageController(MessageRepository messageRepository) {
this.messageRepository = messageRepository;
}
@GetMapping
public ModelAndView list() {
Iterable<Message> messages = this.messageRepository.findAll();
return new ModelAndView("messages/list", "messages", messages);
}
@GetMapping("{id}")
public ModelAndView view(@PathVariable("id") Message message) {
return new ModelAndView("messages/view", "message", message);
}
@GetMapping(params = "form")
public String createForm(@ModelAttribute Message message) {
return "messages/form";
}
@PostMapping
public ModelAndView create(@Valid Message message, BindingResult result,
RedirectAttributes redirect) {
if (result.hasErrors()) {
return new ModelAndView("messages/form", "formErrors", result.getAllErrors());
}
message = this.messageRepository.save(message);
redirect.addFlashAttribute("globalMessage", "Successfully created a new message");
return new ModelAndView("redirect:/{message.id}", "message.id", message.getId());
}
@RequestMapping("foo")
public String foo() {
throw new RuntimeException("Expected exception in controller");
}
@GetMapping(value = "delete/{id}")
public ModelAndView delete(@PathVariable("id") Long id) {
this.messageRepository.deleteMessage(id);
Iterable<Message> messages = this.messageRepository.findAll();
return new ModelAndView("messages/list", "messages", messages);
}
@GetMapping(value = "modify/{id}")
public ModelAndView modifyForm(@PathVariable("id") Message message) {
return new ModelAndView("messages/form", "message", message);
}
}