/*******************************************************************************
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* Copyright (c) 2005, 2014 springside.github.io
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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*******************************************************************************/
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package com.northglass.web.task;
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import java.util.Map;
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import javax.servlet.ServletRequest;
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import javax.validation.Valid;
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import org.apache.shiro.SecurityUtils;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.data.domain.Page;
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import org.springframework.stereotype.Controller;
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import org.springframework.ui.Model;
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import org.springframework.web.bind.annotation.ModelAttribute;
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import org.springframework.web.bind.annotation.PathVariable;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestMethod;
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import org.springframework.web.bind.annotation.RequestParam;
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import org.springframework.web.servlet.mvc.support.RedirectAttributes;
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import com.northglass.entity.Task;
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import com.northglass.entity.User;
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import com.northglass.service.account.ShiroDbRealm.ShiroUser;
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import com.northglass.service.task.TaskService;
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import org.springside.modules.web.Servlets;
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import com.google.common.collect.Maps;
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/**
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* Task管理的Controller, 使用Restful风格的Urls:
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*
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* List page : GET /task/
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* Create page : GET /task/create
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* Create action : POST /task/create
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* Update page : GET /task/update/{id}
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* Update action : POST /task/update
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* Delete action : GET /task/delete/{id}
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*
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* @author calvin
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*/
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@Controller
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@RequestMapping(value = "/task")
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public class TaskController {
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private static final String PAGE_SIZE = "3";
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private static Map<String, String> sortTypes = Maps.newLinkedHashMap();
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static {
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sortTypes.put("auto", "自动");
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sortTypes.put("title", "标题");
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}
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@Autowired
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private TaskService taskService;
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@RequestMapping(method = RequestMethod.GET)
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public String list(@RequestParam(value = "page", defaultValue = "1") int pageNumber,
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@RequestParam(value = "page.size", defaultValue = PAGE_SIZE) int pageSize,
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@RequestParam(value = "sortType", defaultValue = "auto") String sortType, Model model,
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ServletRequest request) {
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Map<String, Object> searchParams = Servlets.getParametersStartingWith(request, "search_");
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Long userId = getCurrentUserId();
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Page<Task> tasks = taskService.getUserTask(userId, searchParams, pageNumber, pageSize, sortType);
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model.addAttribute("tasks", tasks);
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model.addAttribute("sortType", sortType);
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model.addAttribute("sortTypes", sortTypes);
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// 将搜索条件编码成字符串，用于排序，分页的URL
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model.addAttribute("searchParams", Servlets.encodeParameterStringWithPrefix(searchParams, "search_"));
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return "task/taskList";
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}
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@RequestMapping(value = "create", method = RequestMethod.GET)
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public String createForm(Model model) {
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model.addAttribute("task", new Task());
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model.addAttribute("action", "create");
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return "task/taskForm";
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}
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@RequestMapping(value = "create", method = RequestMethod.POST)
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public String create(@Valid Task newTask, RedirectAttributes redirectAttributes) {
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User user = new User(getCurrentUserId());
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newTask.setUser(user);
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taskService.saveTask(newTask);
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redirectAttributes.addFlashAttribute("message", "创建任务成功");
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return "redirect:/task/";
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}
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@RequestMapping(value = "update/{id}", method = RequestMethod.GET)
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public String updateForm(@PathVariable("id") Long id, Model model) {
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model.addAttribute("task", taskService.getTask(id));
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model.addAttribute("action", "update");
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return "task/taskForm";
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}
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@RequestMapping(value = "update", method = RequestMethod.POST)
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public String update(@Valid @ModelAttribute("task") Task task, RedirectAttributes redirectAttributes) {
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taskService.saveTask(task);
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redirectAttributes.addFlashAttribute("message", "更新任务成功");
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return "redirect:/task/";
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}
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@RequestMapping(value = "delete/{id}")
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public String delete(@PathVariable("id") Long id, RedirectAttributes redirectAttributes) {
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taskService.deleteTask(id);
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redirectAttributes.addFlashAttribute("message", "删除任务成功");
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return "redirect:/task/";
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}
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/**
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* 所有RequestMapping方法调用前的Model准备方法, 实现Struts2 Preparable二次部分绑定的效果,先根据form的id从数据库查出Task对象,再把Form提交的内容绑定到该对象上。
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* 因为仅update()方法的form中有id属性，因此仅在update时实际执行.
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*/
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@ModelAttribute
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public void getTask(@RequestParam(value = "id", defaultValue = "-1") Long id, Model model) {
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if (id != -1) {
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model.addAttribute("task", taskService.getTask(id));
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}
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}
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/**
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* 取出Shiro中的当前用户Id.
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*/
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private Long getCurrentUserId() {
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ShiroUser user = (ShiroUser) SecurityUtils.getSubject().getPrincipal();
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return user.id;
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}
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}
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