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question_detail.html

          <div class="my-3">
            <a
              th:href="@{|/answer/modify/${answer.id}|}"
              class="btn btn-sm btn-outline-secondary"
              sec:authorize="isAuthenticated()"
              th:if="${answer.author != null and #authentication.getPrincipal().getUsername() == answer.author.username}"
              th:text="์ˆ˜์ •"
            ></a>
          </div>

 

 

๋‹ต๋ณ€์— ์ˆ˜์ •ํ•˜๊ธฐ ๋ฒ„ํŠผ ์ถ”๊ฐ€ํ•จ

 

 

 

AnswerService

	//๋‹ต๋ณ€ ์กฐํšŒํ•˜๊ธฐ
	public Answer getAnswer(int id) {
		Optional<Answer> answer = aRepo.findById(id);
		if(answer.isPresent()) {
			return answer.get();
		}
		else {
			throw new DataNotFoundException("answer not found");
		}
	}
	
	//๋‹ต๋ณ€ ์ˆ˜์ •ํ•˜๊ธฐ 
	public void modify(Answer answer,String content) {
		answer.setContent(content);
		answer.setModifyDate(LocalDateTime.now());
		aRepo.save(answer);
	}

 

 

AnswerController-get

	//๋‹ต๋ณ€ ์ˆ˜์ • ์ „ ๋‹ต๋ณ€ ๋‚ด์šฉ ์ถœ๋ ฅ
	@PreAuthorize("isAuthenticated()")
	@GetMapping("/modify/{id}")
	public String answerModify(AnswerForm answerForm,@PathVariable("id") int id,Principal principal) {
		Answer answer = aService.getAnswer(id);//๋‹ต๋ณ€์กฐํšŒํ•˜๊ธฐ
		if(!answer.getAuthor().getUsername().equals(principal.getName())) {
			throw new ResponseStatusException(HttpStatus.BAD_REQUEST,"์ˆ˜์ • ๊ถŒํ•œ์ด ์—†์Šต๋‹ˆ๋‹ค.");
		}
		answerForm.setContent(answer.getContent());
		return "answer_form";
	}

 

 

 

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
  <head th:replace="layout::head"></head>
  <body>
    <nav th:replace="layout::nav"></nav>
    <div class="container my-3">
      <h5 class="my-3 border-bottom pb-2">๋‹ต๋ณ€ ์ˆ˜์ •</h5>
      <form th:object="${answerForm}" method="post">
        <input
          type="hidden"
          th:name="${_csrf.parameterName}"
          th:value="${_csrf.token}"
        />
        <div th:replace="layout::formErrors"></div>
        <div class="mb-3">
          <label for="content" class="form-label">๋‚ด์šฉ</label>
          <textarea
            th:field="*{content}"
            class="form-control"
            rows="10"
          ></textarea>
        </div>
        <input type="submit" value="์ €์žฅํ•˜๊ธฐ" class="btn btn-primary my-2" />
      </form>
    </div>
  </body>
</html>

 

 

 

ํ™”๋ฉด ์ถœ๋ ฅ ํ…Œ์ŠคํŠธํ•˜๊ธฐ 

 

 

 

AnswerController-post

์ €์žฅํ•˜๊ธฐ ๋ฒ„ํŠผ ๋ˆ„๋ฅด๋ฉด ์‹ค์ œ๋กœ ์ˆ˜์ • ์ฒ˜๋ฆฌ ํ•˜๋Š” ์ฝ”๋“œ 

	//๋‹ต๋ณ€ ์ˆ˜์ • ์ฒ˜๋ฆฌ
	@PreAuthorize("isAuthenticated()")
	@PostMapping("/modify/{id}")
	public String answerModify(@Valid AnswerForm answerForm, BindingResult result,
								@PathVariable("id") int id, Principal principal) {
		if(result.hasErrors()) {
			return"answer_form";
		}
		Answer answer = aService.getAnswer(id);//๋‹ต๋ณ€ ์กฐํšŒ 
		if(!answer.getAuthor().getUsername().equals(principal.getName())) {
			//๋งŒ์•ฝ ๋‹ต๋ณ€ ์ž‘์„ฑ์ž์˜ id์™€ ํ˜„์žฌ ๋กœ๊ทธ์ธ ์ค‘์ธ ์œ ์ €์˜ id์™€ ์ผ์น˜ํ•˜์ง€ ์•Š์œผ๋ฉด
			throw new ResponseStatusException(HttpStatus.BAD_REQUEST,"์ˆ˜์ •๊ถŒํ•œ์ด ์—†์Šต๋‹ˆ๋‹ค.");
		}
		aService.modify(answer, answerForm.getContent());//๋‹ต๋ณ€ id์™€ , ์ˆ˜์ • ๋œ ๋‹ต๋ณ€ ๋‚ด์šฉ ์ €์žฅ
		return String.format("redirect:/question/detail/%s", answer.getQuestion().getId());
	}

 

 

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