Как придерживаться class-based views django?

Question

[Владислав]

Делая учебный проект, стараюсь придерживаться CBV, однако в итоге появилось несколько массивных функций.

from django.shortcuts import render, redirect
from django.urls import reverse
from django.views.generic import View
from django.contrib.auth import login, authenticate, logout
from django.contrib.auth.models import User
from .models import Action, Category
from .forms import ActionForm, CategoryForm, RegistrationForm, LoginForm
# Create your views here.
def action_view(request):
	try:
		model = Action.objects.filter(user=request.user).order_by('-id')
		action_model = []
		for item in model:
			if item.is_available:
				action_model.append(item) 
		category_model = Category.objects.filter(user=request.user)
		category_form = CategoryForm(request.user) 
		action_form = ActionForm(request.user)
		context={	'actions':action_model,
					'categorys':category_model,
					'category_form':category_form,
					'action_form':action_form}

		return render(request, 'main/actions.html',context )
	except:
		return render(request, 'main/first_look.html', context={'trigger':True})
def logout_view(request):
	logout(request)
	return redirect(reverse('action_url'))

def restore_view(request, slug): 
	model = Action
	obj = model.objects.get(slug__iexact=slug)
	obj.is_available = True
	obj.save()
	return redirect(reverse('action_url'))

def hidden_view(request, slug):
	model = Action
	obj = model.objects.get(slug__iexact=slug)
	obj.is_available = False
	obj.save()
	return redirect(reverse('action_url'))

def delete_view(request, slug):
	if 'category-' in slug:
		model = Category
	else:
		model = Action
	obj = model.objects.get(slug__iexact=slug)
	obj.delete()
	return redirect(reverse('action_url'))

def category_view(request,slug): #Отображает все посты в одной категории
	model = Category.objects.filter(slug__iexact=slug)
	return render(request, 'main/category_view.html', context={'model':model})

def history_view(request):
	action_model = Action.objects.filter(user=request.user).order_by('-id')
	return render(request, 'main/history.html', context={'actions':action_model})

def time_proccessing(times, time_trigger): #Обработка времени, которое ввел пользователь. Если минут > 60, то к час =+1
	for index, item in enumerate(times):
		if item == None:
			times[index]=0
	if time_trigger: # Пользователь может ввести или кол-во уже потраченного времени или запланировать трату времени. time_trigger указывает на это. True - означает планирование трат.
		if times[1]>=60:
			while times[1]>=60:
				times[0] +=1
				times[1]-=60
			return times
	else:
		if times[3]>=60:
			while times[3]>=60:
				times[2] +=1
				times[3]-=60
		if times[1] !=0:
			if times[1]>=60:
				while times[1]>=60:
					times[0] +=1
					times[1]-=60
			return times

class ActionsAddView(View):
	def post(self, request):
		form = ActionForm(request.user,request.POST)
		if form.is_valid():
			time_trigger = form.cleaned_data['time_trigger']
			name = form.cleaned_data['name']
			times = [
				form.cleaned_data['time_should_be_hour'],
				form.cleaned_data['time_should_be_minute'],
				form.cleaned_data['time_to_do_hour'],
				form.cleaned_data['time_to_do_minute'],
			]
			time_proccessing(times, time_trigger)
			description = form.cleaned_data['description']
			categorys = form.cleaned_data['categorys']
			new_action = Action.objects.create(
				user = request.user,
				name = name,
				time_to_do_hour = times[2],
				time_to_do_minute = times[3],
				time_should_be_hour = times[0],
				time_should_be_minute = times[1],
				time_trigger = time_trigger,
				description = description,
				)
			new_action.category.set(categorys)
			return redirect(reverse('action_url')) 
		return render(request, 'main/add_action.html', context={'forms':form})

class UpdateView(View):
	def post(self, request, slug):
		obj = Action.objects.get(slug__iexact=slug)
		form = ActionForm(request.user, request.POST,instance=obj)
		if form.is_valid():
			time_trigger = form.cleaned_data['time_trigger']
			times = [
				form.cleaned_data['time_should_be_hour'],
				form.cleaned_data['time_should_be_minute'],
				form.cleaned_data['time_to_do_hour'],
				form.cleaned_data['time_to_do_minute'],
			]
			time_proccessing(times, time_trigger)
			new_obj = form.save()
			new_obj.time_to_do_hour = times[2]
			new_obj.time_to_do_minute = times[3]
			new_obj.time_should_be_hour = times[0]
			new_obj.time_should_be_minute = times[1]
			new_obj.save()
			return redirect(reverse('action_url'))
		print(form.errors)
		return redirect(reverse('action_url'))

class CategoryAddView(View):
	def post(self, request):
		form = CategoryForm(request.user,request.POST)
		if form.is_valid():
			name = form.cleaned_data['name']
			new_category = Category.objects.create(
				user = request.user,
				name = name
				)
			return redirect(reverse('action_url'))
		return render(request, 'main/add_category.html', context={'forms':form})

class RegisterView(View):
	def get(self, request):
		form = RegistrationForm()
		return render(request, 'main/register.html', context={'forms':form})

	def post(self, request):
		form = RegistrationForm(request.POST)
		if form.is_valid():
			user = form.save()
			user.set_password(user.password)
			user.save()
			username = form.cleaned_data['username']
			password = form.cleaned_data['password']
			login_user = authenticate(username=username, password=password)
			if login_user:
				login(request, login_user)
			return redirect(reverse('action_url'))
		return render(request,'main/register.html', context={'forms':form})	

class LoginView(View):
	def get(self, request):
		form = LoginForm
		return render(request, 'main/login.html', context={'forms':form})

	def post(self, request):
		form = LoginForm(request.POST)
		if form.is_valid():
			username = form.cleaned_data['username']
			password = form.cleaned_data['password']
			login_user = authenticate(username=username, password=password)
			if login_user:
				login(request, login_user)
				return redirect(reverse('action_url'))
		print(form.errors)
		return render(request, 'main/login.html', context={'forms':form})

Кто-то может, на этом примере, показать как лучше все это дело превратить в cbv? Я имею ввиду, такие функции как logout_view, restore_view...
И вообще, было бы неплохо получить отзыв насчет проекта. Делал его как pet-project, однако теперь понимаю что слабоват он для этого.
Весь код - https://github.com/Chenger1/TimeTracking
На heroku - https://time-tracker-nitron.herokuapp.com/main/