RecipeController.java

package guru.springframework.controllers;

import guru.springframework.commands.RecipeCommand;
import guru.springframework.services.RecipeService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;

@Slf4j
@Controller
public class RecipeController {
    private final RecipeService recipeService;

    public RecipeController(RecipeService recipeService) {
        this.recipeService = recipeService;
    }
    @GetMapping("/recipe/{id}/show")
    public String showById(@PathVariable String id, Model model){
        model.addAttribute("recipe",recipeService.findById(Long.valueOf(id)));
        return "recipe/show";
    }
    @GetMapping("recipe/new")
    public String newRecipe(Model model){
        model.addAttribute("recipe", new RecipeCommand());

        return "recipe/recipeform";
    }
    @GetMapping("recipe/{id}/update")
    public String updateRecipe(@PathVariable String id, Model model){
        model.addAttribute("recipe", recipeService.findCommandById(Long.valueOf(id)));
        return "recipe/recipeform";
    }
    @PostMapping("recipe")
    public String serveOrUpdate(@ModelAttribute RecipeCommand command){
        RecipeCommand savedCommand = recipeService.saveRecipeCommand(command);

        return "redirect:/recipe/" + savedCommand.getId() + "/show";
    }

    @GetMapping("recipe/{id}/delete")
    public String deleteById(@PathVariable String id){
        log.debug("Deleting id: " +id);

        recipeService.deleteById(Long.valueOf(id));
        return "redirect:/";
    }
}