com.google.code.trapo.controller.ForumsController.java Source code

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Here is the source code for com.google.code.trapo.controller.ForumsController.java

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/**
 * Copyright 2009 Bamboozle Who
 *
 * 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 com.google.code.trapo.controller;

import static com.google.code.trapo.web.Message.error;
import static com.google.code.trapo.web.Message.information;
import static com.google.code.trapo.web.Message.warning;
import static org.springframework.web.bind.annotation.RequestMethod.POST;

import java.util.List;

import javax.validation.Valid;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.ui.Model;
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 com.google.code.trapo.domain.Forum;
import com.google.code.trapo.domain.Topic;
import com.google.code.trapo.persistence.ForumRepository;
import com.google.code.trapo.persistence.TopicRepository;

/**
 * @author Bamboozle Who
 *
 * @since 31/08/2009
 */
@Controller
@Transactional
public class ForumsController extends AbstractController<Forum> {

    @Autowired
    private ForumRepository forumRepository;
    @Autowired
    private TopicRepository topicRepository;

    @RequestMapping(value = { "/forum/save", "/forum/update" }, method = POST)
    public String save(@ModelAttribute("forum") @Valid Forum forum, BindingResult errors, Model model) {
        if (errors.hasErrors()) {
            model.addAttribute("message", error("Oops! There are some validation errors."));
            return "forums/create";
        }
        if (exists(forum)) {
            forumRepository.update(forum);
            model.addAttribute("message", information("Forum was updated"));
        } else {
            forumRepository.add(forum.open());
            model.addAttribute("message", information("New forum was created"));
        }
        model.addAttribute("forum", forum);
        return "forums/show";
    }

    @RequestMapping(value = "/forum/delete", method = POST)
    public String delete(String id, Model model) {
        Forum forum = this.forumRepository.get(id);
        if (forum == null) {
            return redirectsToList("Forum to delete was not found.", model);
        }
        forumRepository.remove(forum);
        model.addAttribute("message", information("Forum was successfull deleted"));
        return list(model);
    }

    @RequestMapping({ "/forums", "/forums/list" })
    public String list(Model model) {
        List<Forum> forums = forumRepository.listAll();
        model.addAttribute("forums", forums);
        return "forums/list";
    }

    @RequestMapping({ "/forum/{name}" })
    public String show(@PathVariable String name, Model model) {
        Forum forum = forum(name);
        if (forum == null) {
            return redirectsToList("Forum with name " + name + " not found", model);
        }
        model.addAttribute("topics", topics(forum));
        model.addAttribute("forum", forum);
        return "forums/show";
    }

    @RequestMapping("/forum/create")
    public String create(Model model) {
        model.addAttribute("forum", new Forum());
        return "forums/create";
    }

    @RequestMapping(value = "/forum/edit", method = POST)
    public String edit(String id, Model model) {
        Forum forum = this.forumRepository.get(id);
        if (forum == null) {
            return redirectsToList("Forum to edit was not found.", model);
        }
        model.addAttribute("forum", forum);
        return "forums/create";
    }

    protected void setForumRepository(ForumRepository forumRepository) {
        this.forumRepository = forumRepository;
    }

    protected void setTopicsRepository(TopicRepository topicRepository) {
        this.topicRepository = topicRepository;
    }

    private String redirectsToList(String message, Model model) {
        model.addAttribute("message", warning(message));
        return this.list(model);
    }

    private Forum forum(String name) {
        Forum forum = forumRepository.byName(decode(name));
        return forum;
    }

    private List<Topic> topics(Forum forum) {
        return this.topicRepository.topicsFor(forum);
    }

}