sample.mvc.MessageController.java Source code

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Here is the source code for sample.mvc.MessageController.java

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/*
 * Copyright 2012 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.mvc;

import javax.validation.Valid;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import sample.data.Message;
import sample.data.MessageRepository;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

/**
 *
 * @author Rob Winch
 *
 */
@Controller
@RequestMapping("/messages/")
public class MessageController {
    private MessageRepository messageRepository;

    @Autowired
    public MessageController(MessageRepository messageRepository) {
        this.messageRepository = messageRepository;
    }

    @RequestMapping
    public ModelAndView list() {
        Iterable<Message> messages = messageRepository.findAll();
        return new ModelAndView("messages/list", "messages", messages);
    }

    @RequestMapping("{id}")
    public ModelAndView view(@PathVariable("id") Message message) {
        return new ModelAndView("messages/view", "message", message);
    }

    @RequestMapping(value = "form", method = RequestMethod.GET)
    public String createForm(@ModelAttribute Message message) {
        return "messages/form";
    }

    @RequestMapping(method = RequestMethod.POST)
    public ModelAndView create(@Valid Message message, BindingResult result, RedirectAttributes redirect) {
        if (result.hasErrors()) {
            return new ModelAndView("messages/form");
        }
        message = messageRepository.save(message);
        redirect.addFlashAttribute("globalMessage", "Successfully created a new message");
        return new ModelAndView("redirect:/messages/{message.id}", "message.id", message.getId());
    }
}