[Django] views.py 완성코드 (CRUD, 댓글, like)

from django.shortcuts import render, redirect, get_object_or_404
from django.views.decorators.http import require_POST
from django.http import HttpResponseForbidden, HttpResponse
from django.contrib import messages
from django.contrib.auth.decorators import login_required

from .models import Article
from .forms import ArticleForm, CommentForm
# Create your views here.
def index(request):
    articles = Article.objects.order_by('-pk')
    context = {
        'articles': articles,
    }
    return render(request, 'articles/index.html', context)

@login_required
def create(request):
    if request.method == 'POST':
        form = ArticleForm(request.POST, request.FILES)
        if form.is_valid():
            article = form.save(commit=False)
            article.user = request.user
            article.save()
            return redirect('articles:detail', article.pk)
    else:
        form = ArticleForm()
    context = {
        'form': form
    }
    return render(request, 'articles/form.html', context)

def detail(request, pk):
    article = get_object_or_404(Article, pk=pk)
    form = CommentForm()
    context = {
        'article': article,
        'form': form
    }
    return render(request, 'articles/detail.html', context)

@require_POST
@login_required
def delete(request, pk):
    article = get_object_or_404(Article, pk=pk)
    if request.user == article.user:
        article.delete()
    return redirect('articles:index')

@login_required
def update(request, pk):
    # 수정시에는 해당 article 인스턴스를 넘겨줘야한다!
    article = get_object_or_404(Article, pk=pk)
    if request.user == article.user:
        if request.method == 'POST':
            form = ArticleForm(request.POST, request.FILES, instance=article)
            if form.is_valid():
                article = form.save(commit=False)
                article.user = request.user
                article.save()
                return redirect('articles:detail', article.pk)
        else:
            form = ArticleForm(instance=article)
        context = {
            'form': form
        }
        return render(request, 'articles/form.html', context)
    else:
        # 1. 메시지프레임워크를 사용하여, 메인페이지로 이동.
        messages.warning(request, '본인 글만 수정 가능합니다.')
        return redirect('articles:index')
        # 2. 403 status code를 반환.
        # return HttpResponseForbidden()

# @login_required
@require_POST
def comments_create(request, pk):
    if request.user.is_authenticated:
        article = get_object_or_404(Article, pk=pk)
        form = CommentForm(request.POST)
        if form.is_valid():
            comment = form.save(commit=False)
            comment.user = request.user
            comment.article = article
            comment.save()
        return redirect('articles:detail', article.pk)
    else:
        # 1. next parameter 없이 진행.
        messages.warning(request, '댓글 작성을 위해서는 로그인이 필요합니다.')
        return redirect('accounts:login')
        # return HttpResponse(status=401)

def like(request, pk):
    article = get_object_or_404(Article, pk=pk)
    # request.user
    # 좋아요를 누른적이 있다면, => DB에 저장되어 있으면
    # if request.user in article.like_users.all():
    if article.like_users.filter(id=request.user.pk).exists():
        # 취소
        article.like_users.remove(request.user)
    # 그게 아니면,
    else:
        # 좋아요
        article.like_users.add(request.user)
    return redirect('articles:detail', article.pk)

 

from django.shortcuts import render, redirect, get_object_or_404

from django.views.decorators.http import require_POST

from django.http import HttpResponseForbidden, HttpResponse

from django.contrib import messages

from django.contrib.auth.decorators import login_required

 

from .models import Article

from .forms import ArticleForm, CommentForm

# Create your views here.

def index(request):

    articles = Article.objects.order_by('-pk')

    context = {

        'articles': articles,

    }

    return render(request, 'articles/index.html', context)

 

@login_required

def create(request):

    if request.method == 'POST':

        form = ArticleForm(request.POST, request.FILES)

        if form.is_valid():

            article = form.save(commit=False)

            article.user = request.user

            article.save()

            return redirect('articles:detail', article.pk)

    else:

        form = ArticleForm()

    context = {

        'form': form

    }

    return render(request, 'articles/form.html', context)

 

def detail(request, pk):

    article = get_object_or_404(Article, pk=pk)

    form = CommentForm()

    context = {

        'article': article,

        'form': form

    }

    return render(request, 'articles/detail.html', context)

 

@require_POST

@login_required

def delete(request, pk):

    article = get_object_or_404(Article, pk=pk)

    if request.user == article.user:

        article.delete()

    return redirect('articles:index')

 

@login_required

def update(request, pk):

    # 수정시에는 해당 article 인스턴스를 넘겨줘야한다!

    article = get_object_or_404(Article, pk=pk)

    if request.user == article.user:

        if request.method == 'POST':

            form = ArticleForm(request.POST, request.FILES, instance=article)

            if form.is_valid():

                article = form.save(commit=False)

                article.user = request.user

                article.save()

                return redirect('articles:detail', article.pk)

        else:

            form = ArticleForm(instance=article)

        context = {

            'form': form

        }

        return render(request, 'articles/form.html', context)

    else:

        # 1. 메시지프레임워크를 사용하여, 메인페이지로 이동.

        messages.warning(request, '본인 글만 수정 가능합니다.')

        return redirect('articles:index')

        # 2. 403 status code를 반환.

        # return HttpResponseForbidden()

 

# @login_required

@require_POST

def comments_create(request, pk):

    if request.user.is_authenticated:

        article = get_object_or_404(Article, pk=pk)

        form = CommentForm(request.POST)

        if form.is_valid():

            comment = form.save(commit=False)

            comment.user = request.user

            comment.article = article

            comment.save()

        return redirect('articles:detail', article.pk)

    else:

        # 1. next parameter 없이 진행.

        messages.warning(request, '댓글 작성을 위해서는 로그인이 필요합니다.')

        return redirect('accounts:login')

        # return HttpResponse(status=401)

 

def like(request, pk):

    article = get_object_or_404(Article, pk=pk)

    # request.user

    # 좋아요를 누른적이 있다면, => DB에 저장되어 있으면

    # if request.user in article.like_users.all():

    if article.like_users.filter(id=request.user.pk).exists():

        # 취소

        article.like_users.remove(request.user)

    # 그게 아니면,

    else:

        # 좋아요

        article.like_users.add(request.user)

    return redirect('articles:detail', article.pk)