[Django]Update View with Model Form

CodingEntrepreneurs Django 강의 정리

forms>

from django import forms

from .models import BlogPost


class BlogPostForm(forms.Form):
    title = forms.CharField()
    slug = forms.SlugField()
    content = forms.CharField(widget=forms.Textarea)


class BlogPostModelForm(forms.ModelForm):
    # title = forms.CharField()

    class Meta:
        model = BlogPost
        fields = ["title", "slug", "content"]

    # def clean_title(self, *args, **kwargs):
    #     title = self.cleaned_data.get("title")
    #     qs = BlogPost.objects.filter(title=title)
    #     if qs.exists():
    #         raise forms.ValidationError(
    #             "This title has already been used. Please try again."
    #         )
    #     return title

 

views>

from django.contrib.auth.decorators import login_required
from django.contrib.admin.views.decorators import staff_member_required
from django.http import Http404
from django.shortcuts import render, get_object_or_404

# Create your views here.
from .models import BlogPost
from .forms import BlogPostModelForm

# CRUD

# GET -> Retrieve / List

# POST -> Create / Update / DELETE

# Create Retrieve Update Delete


def blog_post_list_view(request):
    # list out objects
    # could be search
    qs = BlogPost.objects.all()  # queryset -> list of python object
    template_name = "blog/list.html"
    context = {"object_list": qs}
    return render(request, template_name, context)


# @login_required(login_url="/login")
# @login_required
@staff_member_required
def blog_post_create_view(request):
    # create objects
    # ? use a form
    # request.user > return something
    # if not request.user.is_authenticated:
    #     return render(request, "note-a-user.html", {})
    form = BlogPostModelForm(request.POST or None)
    if form.is_valid():
        obj = form.save(commit=False)
        obj.user = request.user
        # obj.title = form.cleaned_data.get("title") + "0"
        obj.save()
        form = BlogPostModelForm()
    template_name = "form.html"
    context = {"form": form}
    return render(request, template_name, context)


def blog_post_detail_view(request, slug):
    # 1 object -> detail view
    obj = get_object_or_404(BlogPost, slug=slug)
    template_name = "blog/detail.html"
    context = {"object": obj}
    return render(request, template_name, context)


def blog_post_update_view(request, slug):
    obj = get_object_or_404(BlogPost, slug=slug)
    form = BlogPostModelForm(request.POST or None, instance=obj)
    if form.is_valid():
        form.save()
    template_name = "form.html"
    context = {"form": form, "title": f"Update { obj.title }"}
    return render(request, template_name, context)


def blog_post_delete_view(request, slug):
    obj = get_object_or_404(BlogPost, slug=slug)
    template_name = "blog/delete.html"
    context = {"object": obj}
    return render(request, template_name, context)