Django(13) - 프로필과 댓글 기능 추가하기

from imagekit.models import ProcessedImageField
from imagekit.processors import ResizeToFill
from imagekit.processors import Thumbnail
from imagekit.models import ImageSpecField
from django.db import models
from django.conf import settings

# Create your models here.
'''
게시판 기능 
- 제목(20글자이내)
- 내용(긴 글)
- 글 작성시간/수정시간(자동으로 기록, 날짜/시간)
'''
# 1. 모델 설계 (DB 스키마 설계)
class Article(models.Model):
    title = models.CharField(max_length=20)
    content = models.TextField()
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)
    image = ProcessedImageField(upload_to='images/', blank=True,
                                processors=[ResizeToFill(400, 300)],
                                format='JPEG',
                                options={'quality': 80})
    image_thumbnail = ProcessedImageField(
	                                      upload_to = 'images/', 	blank=True,# settings.py 원본 ImageField 명
	                                      processors = [Thumbnail(100, 100)], # 처리할 작업목록
		                                  format = 'JPEG',		   # 최종 저장 포맷
		                                  options = {'quality': 60}) # 저장 옵션
    # 모델에 user 추가
    user = models.ForeignKey(settings.AUTH_USER_MODEL, 
                                on_delete=models.CASCADE, null=True)

@login_required
def create(request):
    if request.method == 'POST':
        article_form = ArticleForm(request.POST, request.FILES)
        if article_form.is_valid():
          	# 댓글 저장과 같이바로 저장하지 않고 
            # 객체를 주면 내가 필요한 값을 넣고 저장함
            article = article_form.save(commit=False)
            article.user = request.user
            article.save()
            messages.success(request, '글 작성이 완료되었습니다.')
            return redirect('articles:index')
    else: 
        article_form = ArticleForm()
    context = {
        'article_form': article_form
    }
    return render(request, 'articles/form.html', context=context)

{% block body %}
  <h1>{{ article.title }}</h1>
  <h2>{{ article.pk }}번 게시글</h2>
  <h3><a href="{% url 'accounts:detail' article.user.pk %}">{{ article.user.username }}</a></h3>
  <p>{{ article.created_at|date:"SHORT_DATETIME_FORMAT" }}
    |
    {{ article.updated_at|date:"y-m-d D" }}</p>
  <p>작성자: {{ article.user }}</p>
  <p>{{ article.content }}
  </p>
  ...

@login_required
def update(request, pk):
    article = Article.objects.get(pk=pk)
    if request.user == article.user:

        if request.method == 'POST':
            # POST : input 값 가져와서, 검증하고, DB에 저장
            article_form = ArticleForm(request.POST, request.FILES, instance=article)
            if article_form.is_valid():
                # 유효성 검사 통과하면 저장하고, 상세보기 페이지로
                article_form.save()
                messages.success(request, '글이 수정되었습니다.')
                return redirect('articles:detail', article.pk)
            # 유효성 검사 통과하지 않으면 => context 부터해서 오류메시지 담긴 article_form을 랜더링
        else:
            # GET : Form을 제공
            article_form = ArticleForm(instance=article)
        context = {
            'article_form': article_form
        }
        return render(request, 'articles/form.html', context)
    else:
        # (1) 403 에러메세지를 던진다
        from django.http import HttpResponseForbidden
        return HttpResponseForbidden()
        # (2) flash message 활용
        # messages.warning(request, '작성자만 수정할 수 있습니다.')
        # return redirect('articles:detail', article.pk)

  {% if request.user == article.user %}
  <div>
  <a class="btn btn-primary my-3" href="{% url 'articles:update' article.pk %}">수정하기</a>
  <a class="btn btn-danger my-3" href="{% url 'articles:delete' article.pk %}">삭제하기</a>
  </div>
  {% endif %}

class Comment(models.Model):
    content = models.TextField()
    created_at = models.DateTimeField(auto_now_add=True)
    article = models.ForeignKey(Article, on_delete=models.CASCADE)
    # user는 settings.AUTH_USER_MODEL에 정의된 accounts앱에 user 클래스
    # 역참조해서 사용 : user.comment_set.all()
    user = models.ForeignKey(settings.AUTH_USER_MODEL, 
                                on_delete=models.CASCADE, null=True)

def comment_create(request, pk):
    article = Article.objects.get(pk=pk)
    comment_form = CommentForm(request.POST)
    if comment_form.is_valid():
        comment = comment_form.save(commit=False)
        comment.article = article
        # comment.user 추가
        comment.user = request.user
        comment_form.save() # 모델 인스턴스의 save()
    return redirect('articles:detail', article.pk)