JCH
Java Community | Help. Code. Learn.•3w ago
userexit

Help understand this spring boot code (make it better too)

@Controller
public class CategoriesController {
    @Autowired
    private CategoryService categoryService;

    @GetMapping(value = "/admin/categories")
    public String editCategories(Model model) {
        model.addAttribute("category", new Category());
        return "editors/categories";
    }

    @PostMapping(value = "/admin/categories")
    public String addCategory(@Valid @ModelAttribute(name = "category") Category category, Errors errors, Model model, RedirectAttributes redirectAttributes) {
        if (errors.hasErrors()) {
            model.addAttribute("category", category);
            return "editors/categories";
        }
        categoryService.save(category);
        redirectAttributes.addFlashAttribute("successMessage", "Added category successfully");
        return "redirect:/admin/categories";
    }

    @ModelAttribute
    public void addCommonAttributes(Model model, HttpServletRequest request) {
        model.addAttribute("categories", categoryService.getAllCategories());
        model.addAttribute("category", new Category());
        model.addAttribute("requestURI", request.getRequestURI());
    }
}
@Controller
public class CategoriesController {
    @Autowired
    private CategoryService categoryService;

    @GetMapping(value = "/admin/categories")
    public String editCategories(Model model) {
        model.addAttribute("category", new Category());
        return "editors/categories";
    }

    @PostMapping(value = "/admin/categories")
    public String addCategory(@Valid @ModelAttribute(name = "category") Category category, Errors errors, Model model, RedirectAttributes redirectAttributes) {
        if (errors.hasErrors()) {
            model.addAttribute("category", category);
            return "editors/categories";
        }
        categoryService.save(category);
        redirectAttributes.addFlashAttribute("successMessage", "Added category successfully");
        return "redirect:/admin/categories";
    }

    @ModelAttribute
    public void addCommonAttributes(Model model, HttpServletRequest request) {
        model.addAttribute("categories", categoryService.getAllCategories());
        model.addAttribute("category", new Category());
        model.addAttribute("requestURI", request.getRequestURI());
    }
}
3 Replies
JavaBot
JavaBot•3w ago
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userexit
userexitOP•3w ago
on the /admin/categories i add the attribute category in the model this is useless i already do this in @ModelAttribute which makes sure every request has a new Category but then in the PostMapping I add the category again if there are errors that shouldnt work right ?
JavaBot
JavaBot•3w ago
💤 Post marked as dormant
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