tpjpa/src/main/java/sample/data/jpa/web/QuizzController.java

package sample.data.jpa.web;

import java.util.List;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import sample.data.jpa.metier.Question;
import sample.data.jpa.metier.Quizz;
import sample.data.jpa.service.QuizzDao;

@Controller
@RequestMapping("/quizz")
public class QuizzController {
    private QuizzDao qDao;


    @PostMapping("/create")
    @ResponseBody
    public String create() {
        String qId = "";
        try {
            Quizz q = new Quizz();
            qDao.save(q);
            qId = String.valueOf(q.getId());
        }
        catch (Exception ex) {
        return "Error creating the Quizz : " + ex.toString();
        }
        return "Quizz succesfully created with id = " + qId;
    }

    @DeleteMapping("/delete/{id}")
    @ResponseBody
    public String delete(@PathVariable("id") int id) {
        try {
            Quizz q = qDao.findById(id).get();
            qDao.delete(q);
        }
        catch (Exception ex) {
        return "Error deleting the quizz " + id + " :" + ex.toString();
        }
        return "Quizz " + id + " succesfully deleted!";
    }

    @PutMapping("/addQuestion/{id}")
    @ResponseBody
    public String delete(@PathVariable("id") int id, Question question) {
        try {
            Quizz q = qDao.findById(id).get();
            q.getQuestions().add(question);
            qDao.save(q);
        }
        catch (Exception ex) {
        return "Error Question adding from quizz " + id + " :" + ex.toString();
        }
        return "Question add from Quizz " + id;
    }

    @PutMapping("/deletQuestion/{id}")
    @ResponseBody
    public String delete(@PathVariable("id") int id, int qId) {
        try {
            Quizz q = qDao.findById(id).get();
            q.getQuestions().remove(qId);
            qDao.save(q);
        }
        catch (Exception ex) {
        return "Error removing question from the quizz " + id + " :" + ex.toString();
        }
        return "Question remove from Quizz " + id;
    }

    @PutMapping("/getAll")
    @ResponseBody
    public String getAll(){
        String res = "";

        try {
            List<Quizz> quizzs = qDao.findAll();
            for (Quizz quizz : quizzs) {
                res+=quizz.getId() + " nbQuestion:" + quizz.getQuestions().size() + " \n";
            }
        }
        catch (Exception ex) {
        return "Error get all Quizz :" + ex.toString();
        }
        return "Quizz : \n" + res;
    }


}