FruitSubcategoryController.java

package org.xmx0632.deliciousfruit.web.admin;

import java.util.List;
import java.util.Locale;
import java.util.Map;

import javax.servlet.ServletRequest;
import javax.validation.Valid;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.support.ResourceBundleMessageSource;
import org.springframework.data.domain.Page;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
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.bind.annotation.RequestParam;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;
import org.springside.modules.web.Servlets;
import org.xmx0632.deliciousfruit.entity.FruitCategory;
import org.xmx0632.deliciousfruit.entity.FruitSubcategory;
import org.xmx0632.deliciousfruit.global.ConfigConstant;
import org.xmx0632.deliciousfruit.service.ConfigService;
import org.xmx0632.deliciousfruit.service.FruitCategoryService;
import org.xmx0632.deliciousfruit.service.FruitSubcategoryService;

import com.google.common.collect.Maps;

@Controller
@RequestMapping(value = "/admin/fruitSubcategory")
public class FruitSubcategoryController {

	private static Logger log = LoggerFactory
			.getLogger(FruitSubcategoryController.class);

	@Autowired
	private ResourceBundleMessageSource messageSource;

	private static Map<String, String> sortTypes = null;

	private Map<String, String> getSortTypes(Locale locale) {
		if (sortTypes == null) {
			sortTypes = Maps.newLinkedHashMap();

			sortTypes.put("auto",
					messageSource.getMessage("common.auto", null, locale));
			sortTypes.put("fruitType", messageSource.getMessage(
					"fruitSubcategory.fruitType", null, locale));
		}
		return sortTypes;
	}

	@Autowired
	private FruitSubcategoryService fruitSubcategoryService;

	@Autowired
	private FruitCategoryService fruitCategoryService;

	@Autowired
	private ConfigService configService;

	@RequestMapping(method = RequestMethod.GET)
	public String list(
			@RequestParam(value = "sortType", defaultValue = "auto") String sortType,
			@RequestParam(value = "page", defaultValue = "1") int pageNumber,
			Model model, ServletRequest request) {
		Map<String, Object> searchParams = Servlets.getParametersStartingWith(
				request, "search_");
		Page<FruitSubcategory> fruitSubcategorys = fruitSubcategoryService
				.getFruitSubcategorys(searchParams, pageNumber,
						configService.getIntByName(ConfigConstant.PAGE_SIZE),
						sortType);
		model.addAttribute("fruitSubcategorys", fruitSubcategorys);
		model.addAttribute("sortType", sortType);
		model.addAttribute("sortTypes", getSortTypes(request.getLocale()));
		model.addAttribute("searchParams", Servlets
				.encodeParameterStringWithPrefix(searchParams, "search_"));

		return "admin/fruitSubcategoryList";
	}

	@RequestMapping(value = "listAll/{fruitCategoryId}", method = RequestMethod.GET)
	public String listAll(
			@PathVariable("fruitCategoryId") Long fruitCategoryId, Model model,
			ServletRequest request, RedirectAttributes redirectAttributes) {
		List<FruitSubcategory> list = fruitSubcategoryService
				.getAllUnSelectedFruitSubcategory();
		model.addAttribute("fruitSubcategorys", list);
		model.addAttribute("fruitCategoryId", fruitCategoryId);

		return "admin/fruitSubcategorySelectList";
	}

	@RequestMapping(value = "bind", method = RequestMethod.POST)
	public String bind(
			@RequestParam("fruitCategoryId") Long fruitCategoryId,
			@RequestParam(value = "checkedSubCategoryList") List<Long> checkedSubCategoryList,
			RedirectAttributes redirectAttributes) {
		FruitCategory fruitCategory = fruitCategoryService
				.getFruitCategory(fruitCategoryId);

		for (Long subCategoryId : checkedSubCategoryList) {
			FruitSubcategory fruitSubcategory = fruitSubcategoryService
					.getFruitSubcategory(subCategoryId);
			fruitSubcategory.setFruitCategory(fruitCategory);
			fruitSubcategoryService.saveFruitSubcategory(fruitSubcategory);
		}

		redirectAttributes.addFlashAttribute("message", "添加分类到 ["
				+ fruitCategory.getName() + "]成功");
		return "redirect:/admin/fruitCategory/update/" + fruitCategoryId;
	}

	@RequestMapping(value = "unbind/{fruitCategoryId}/{fruitSubCategoryId}", method = RequestMethod.GET)
	public String unbind(@PathVariable("fruitCategoryId") Long fruitCategoryId,
			@PathVariable("fruitSubCategoryId") Long fruitSubCategoryId,
			RedirectAttributes redirectAttributes) {

		FruitSubcategory fruitSubcategory = fruitSubcategoryService
				.getFruitSubcategory(fruitSubCategoryId);
		fruitSubcategory.setFruitCategory(null);

		log.debug("fruitSubcategory:{}", fruitSubcategory);
		fruitSubcategoryService.saveFruitSubcategory(fruitSubcategory);
		redirectAttributes.addFlashAttribute("message", "解除绑定成功");
		return "redirect:/admin/fruitCategory/update/" + fruitCategoryId;
	}

	@RequestMapping(value = "create", method = RequestMethod.GET)
	public String createForm(Model model) {
		FruitSubcategory fsc = new FruitSubcategory();
		model.addAttribute("fruitSubcategory", fsc);
		model.addAttribute("action", "create");
		return "admin/fruitSubcategoryForm";
	}

	@RequestMapping(value = "create", method = RequestMethod.POST)
	public String create(@Valid FruitSubcategory newFruitSubcategory,
			RedirectAttributes redirectAttributes) {

		log.debug("newFruitSubcategory:{}", newFruitSubcategory);
		fruitSubcategoryService.saveFruitSubcategory(newFruitSubcategory);
		redirectAttributes.addFlashAttribute("message", "创建fruitSubcategory成功");
		return "redirect:/admin/fruitSubcategory";
	}

	@RequestMapping(value = "update/{id}", method = RequestMethod.GET)
	public String updateForm(@PathVariable("id") Long id, Model model) {
		model.addAttribute("fruitSubcategory",
				fruitSubcategoryService.getFruitSubcategory(id));
		model.addAttribute("action", "update");
		return "admin/fruitSubcategoryForm";
	}

	@RequestMapping(value = "update", method = RequestMethod.POST)
	public String update(
			@Valid @ModelAttribute("preloadFruitSubcategory") FruitSubcategory fruitSubcategory,
			RedirectAttributes redirectAttributes) {
		fruitSubcategoryService.saveFruitSubcategory(fruitSubcategory);
		redirectAttributes.addFlashAttribute("message", "更新fruitSubcategory成功");
		return "redirect:/admin/fruitSubcategory";
	}

	@RequestMapping(value = "delete/{id}")
	public String delete(@PathVariable("id") Long id,
			RedirectAttributes redirectAttributes) {
		fruitSubcategoryService.deleteFruitSubcategory(id);
		redirectAttributes.addFlashAttribute("message", "删除fruitSubcategory成功");
		return "redirect:/admin/fruitSubcategory";
	}

	/**
	 * 使用@ModelAttribute, 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FruitSubcategory对象
	 * ,再把Form提交的内容绑定到该对象上. 因为仅update()方法的form中有id属性,因此本方法在该方法中执行.
	 */
	@ModelAttribute("preloadFruitSubcategory")
	public FruitSubcategory getFruitSubcategory(
			@RequestParam(value = "id", required = false) Long id) {
		if (id != null) {
			return fruitSubcategoryService.getFruitSubcategory(id);
		}
		return null;
	}
}