완료하기 ✅ : Django 할 일 목록 작성에 대한 단계별 가이드

python manage.py makemigrations
python manage.py migrate

from django import forms
from .models import Task

class TaskForm(forms.ModelForm):
    class Meta:
        model = Task
        fields = ['title', 'description', 'deadline', 'complete']
        widgets = {
            'title': forms.TextInput(attrs={'placeholder': 'Enter task title'}),
            'description': forms.Textarea(attrs={'placeholder': 'Enter task description', 'rows': 4}),
            'deadline': forms.DateTimeInput(attrs={'type': 'datetime-local'}),
            'complete': forms.CheckboxInput(),
        }

    def clean_title(self):
        title = self.cleaned_data.get('title')
        if not title:
            raise forms.ValidationError('Title is required')
        return title

    def clean_description(self):
        description = self.cleaned_data.get('description')
        if not description:
            raise forms.ValidationError('Description is required')
        return description

    def clean_deadline(self):
        deadline = self.cleaned_data.get('deadline')
        if not deadline:
            raise forms.ValidationError('Deadline is required')
        return deadline

from django.shortcuts import render, redirect
from django.views.generic import ListView, CreateView, UpdateView, DeleteView
from django.contrib.auth.views import LoginView
from django.contrib.auth.mixins import LoginRequiredMixin
from django.contrib.auth.forms import UserCreationForm
from django.urls import reverse_lazy
from .models import Task
from .forms import TaskForm
from django.contrib import messages
from django.utils import timezone


# Task List View
class TodoListView(LoginRequiredMixin, ListView):
    model = Task
    context_object_name = 'tasks'
    template_name = 'task_list.html'

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        user_tasks = Task.objects.filter(user=self.request.user)
        context['tasks'] = Task.objects.filter(user=self.request.user)
        context['incomplete_tasks_count'] = user_tasks.filter(complete=False).count()  # Count incomplete tasks
        context['now'] = timezone.now()
        return context

# Task Create View
class TaskCreate(LoginRequiredMixin, CreateView):
    model = Task
    form_class = TaskForm
    template_name = 'todoList/task_create.html'
    success_url = reverse_lazy('todoList')

    def form_valid(self, form):
        form.instance.user = self.request.user
        messages.success(self.request, 'Task created successfully!')
        return super(TaskCreate, self).form_valid(form)

# Task Update View
class TaskUpdate(LoginRequiredMixin, UpdateView):
    model = Task
    form_class = TaskForm
    template_name = 'todoList/task_update.html'
    success_url = reverse_lazy('todoList')
    def form_valid(self, form):
        messages.success(self.request, 'Task updated successfully!')
        return super(TaskUpdate, self).form_valid(form)

# Task Delete View
class TaskDelete(LoginRequiredMixin, DeleteView):
    model = Task
    context_object_name = 'task'
    template_name = 'todoList/task_delete.html'
    success_url = reverse_lazy('todoList')
    def dispatch(self, request, *args, **kwargs):
        response = super().dispatch(request, *args, **kwargs)
        if response.status_code == 302:
            messages.success(self.request, 'Task deleted successfully!')
        return response

# User Registration View
class RegisterView(CreateView):
    form_class = UserCreationForm
    template_name = 'todoList/register.html'
    success_url = reverse_lazy('todoList')

    def form_valid(self, form):
        response = super().form_valid(form)
        # Log the user in after successful registration
        from django.contrib.auth import login
        login(self.request, self.object)
        messages.success(self.request, 'Registration successful! Welcome!')
        return response


# Login View
class CustomLoginView(LoginView):
    template_name = 'todoList/login.html'
    fields = '__all__'
    redirect_authenticated_user = True

    def get_success_url(self):
        messages.success(self.request, 'You have logged in successfully!')
        return reverse_lazy('todoList')