/*
* JBoss, Home of Professional Open Source
* Copyright 2015, Red Hat, Inc. and/or its affiliates, and individual
* contributors by the @authors tag. See the copyright.txt in the
* distribution for a full listing of individual contributors.
*
* 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.jboss.as.quickstarts.kitchensink.spring.basic.controller;
import javax.persistence.NoResultException;
import javax.validation.Valid;
import org.jboss.as.quickstarts.kitchensink.spring.basic.data.MemberDao;
import org.jboss.as.quickstarts.kitchensink.spring.basic.model.Member;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.transaction.UnexpectedRollbackException;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
@Controller
@RequestMapping(value = "/")
public class MemberController {
@Autowired
private MemberDao memberDao;
@RequestMapping(method = RequestMethod.GET)
public String displaySortedMembers(Model model) {
model.addAttribute("newMember", new Member());
model.addAttribute("members", memberDao.findAllOrderedByName());
return "index";
}
@RequestMapping(method = RequestMethod.POST)
public String registerNewMember(@Valid @ModelAttribute("newMember") Member newMember, BindingResult result, Model model) {
if (!result.hasErrors()) {
try {
memberDao.register(newMember);
return "redirect:/";
} catch (UnexpectedRollbackException e) {
model.addAttribute("members", memberDao.findAllOrderedByName());
// Check the uniqueness of the email address
if (emailAlreadyExists(newMember.getEmail())) {
model.addAttribute("error", "Unique Email Violation");
} else {
model.addAttribute("error", e.getCause().getCause());
}
return "index";
}
} else {
model.addAttribute("members", memberDao.findAllOrderedByName());
return "index";
}
}
/**
* Checks if a member with the same email address is already registered. This is the only way to easily capture the
* "@UniqueConstraint(columnNames = "email")" constraint from the Member class.
*
* @param email The email to check
* @return True if the email already exists, and false otherwise
*/
public boolean emailAlreadyExists(String email) {
Member member = null;
try {
member = memberDao.findByEmail(email);
} catch (NoResultException e) {
// ignore
}
return member != null;
}
}