[Django prac][Django prac][DB N:M 팔로우] 5.

# accounts > urls.py 

from django.urls import path
from . import views

app_name = 'accounts'
urlpatterns = [
    path('login/', views.login, name='login'),
    path('logout/', views.logout, name='logout'),
    path('signup/', views.signup, name='signup'),
    path('delete/', views.delete, name='delete'),
    path('update/', views.update, name='update'),
    path('profile/<str:username>/', views.profile, name='profile'),
    path('<int:user_pk>/follow/', views.follow, name='follow'),
]

---

# accounts > views.py 

from django.shortcuts import render, redirect
from django.contrib.auth import login as auth_login
from django.contrib.auth import logout as auth_logout
from django.contrib.auth import update_session_auth_hash
from django.contrib.auth.decorators import login_required
from django.contrib.auth.forms import AuthenticationForm, PasswordChangeForm
from django.contrib.auth import get_user_model
from .forms import CustomUserChangeForm, CustomUserCreationForm


@login_required
def follow(request, user_pk):
    me = request.user
    you = get_user_model().objects.get(pk=user_pk)

    # 자기 자신을 팔로우 할 수 없음
    if me != you:
        # 요청하는 사람이 상대방의 팔로워 목록에 있는지 없는지
        if me in you.followers.all():
            you.followers.remove(me)
            # me.followings.remove(you)
        else:
            you.followers.add(me)
            # me.followings.add(you)
    return redirect('accounts:profile', you.username)

from django.shortcuts import render, redirect
from django.contrib.auth import login as auth_login
from django.contrib.auth import logout as auth_logout
from django.contrib.auth import update_session_auth_hash
from django.contrib.auth.decorators import login_required
from django.contrib.auth.forms import AuthenticationForm, PasswordChangeForm
from django.contrib.auth import get_user_model
from .forms import CustomUserChangeForm, CustomUserCreationForm

def login(request):
    if request.user.is_authenticated:
        return redirect('articles:index')

    if request.method == 'POST':
        form = AuthenticationForm(request, request.POST)
        if form.is_valid():
            auth_login(request, form.get_user())
            return redirect('articles:index')
    else:
        form = AuthenticationForm()
    context = {
        'form': form,
    }
    return render(request, 'accounts/login.html', context)

@login_required
def logout(request):
    auth_logout(request)
    return redirect('articles:index')

def signup(request):
    if request.user.is_authenticated:
        return redirect('articles:index')

    if request.method == 'POST':
        form = CustomUserCreationForm(request.POST)
        if form.is_valid():
            form.save()
            return redirect('articles:index')
    else:
        form = CustomUserCreationForm()
    context = {
        'form': form,
    }
    return render(request, 'accounts/signup.html', context)

@login_required
def delete(request):
    request.user.delete()
    return redirect('articles:index')

@login_required
def update(request):
    if request.method == 'POST':
        form = CustomUserChangeForm(request.POST, instance=request.user)
        if form.is_valid():
            form.save()
            return redirect('articles:index')
    else:
        form = CustomUserChangeForm(instance=request.user)
    context = {
        'form': form,
    }
    return render(request, 'accounts/update.html', context)

@login_required
def change_password(request, user_pk):
    if request.method == 'POST':
        form = PasswordChangeForm(request.user, request.POST)
        if form.is_valid():
            user = form.save()
            update_session_auth_hash(request, user)
            return redirect('articles:index')
    else:
        form = PasswordChangeForm(request.user)
    context = {
        'form': form,
    }
    return render(request, 'accounts/change_password.html', context)

def profile(request, username):
    User = get_user_model()
    person = User.objects.get(username=username)
    context = {
        'person': person,
    }
    return render(request, 'accounts/profile.html', context)

@login_required
def follow(request, user_pk):
    me = request.user
    you = get_user_model().objects.get(pk=user_pk)

    # 자기 자신을 팔로우 할 수 없음
    if me != you:
        # 요청하는 사람이 상대방의 팔로워 목록에 있는지 없는지
        if me in you.followers.all():
            you.followers.remove(me)
            # me.followings.remove(you)
        else:
            you.followers.add(me)
            # me.followings.add(you)
    return redirect('accounts:profile', you.username)