old_contents: from django.shortcuts import render, redirect
  from django.http import HttpResponse, HttpResponseRedirect
  from django.contrib import messages
  from django.urls import reverse
  
  from .models import Team, Mentor, Meetup, Coworking, Post, Event
  from .forms import ApplicationForm
  
  
  def index(request):
      featured_posts = Post.objects.filter(is_featured=True)
      events = Event.objects.all()
      return render(request, 'main/index.html', {
          'featured_posts': featured_posts,
          'events': events,
      })
  
  
  def about(request):
      return render(request, 'main/about.html', {
          'page_title': 'Σχετικά',
      })
  
  
  def program_redir(request):
      return redirect(reverse('main:program_teams'))
  
  
  def program_teams(request):
      teams = Team.objects.filter(alumni=False).order_by('name')
      return render(request, 'main/program-teams.html', {
          'teams': teams,
      })
  
  
  def program_mentors(request):
      mentors = Mentor.objects.order_by('name')
      return render(request, 'main/program-mentors.html', {
          'mentors': mentors,
      })
  
  
  def program_alumni(request):
      teams = Team.objects.filter(alumni=True).order_by('name')
      return render(request, 'main/program-alumni.html', {
          'teams': teams,
      })
  
  
  def events(request):
      events = Event.objects.order_by('-date')[:10]
      meetups = Meetup.objects.order_by('name')
      return render(request, 'main/events.html', {
          'events': events,
          'meetups': meetups,
      })
  
  
  def blog(request):
      posts_list = Post.objects.order_by('-date')[:10]
      return render(request, 'main/blog.html', {
          'posts_list': posts_list,
      })
  
  
  def blog_post(request, post_id):
      post = Post.objects.get(id=post_id)
      return render(request, 'main/post.html', {
          'post': post,
      })
  
  
  def contact(request):
      return render(request, 'main/contact.html')
  
  
  def apply(request):
      if request.method == 'POST':
          form = ApplicationForm(request.POST)
          if form.is_valid():
              form.save()
              messages.info(request, 'Thank you for applying!')
              return HttpResponseRedirect('/apply')
          else:
              return HttpResponse('Application form submission is invalid.')
      else:
          form = ApplicationForm()
          return render(request, 'main/apply.html', {'form': form})
  
  
  def health(request):
      return HttpResponse('Ok')
  
new_contents: from django.shortcuts import render, redirect
  from django.http import HttpResponse, HttpResponseRedirect
  from django.contrib import messages
  from django.urls import reverse
  
  from .models import Team, Mentor, Meetup, Coworking, Post, Event
  from .forms import ApplicationForm
  
  
  def index(request):
      featured_posts = Post.objects.filter(is_featured=True)
      events = Event.objects.all()
      return render(request, 'main/index.html', {
          'featured_posts': featured_posts,
          'events': events,
      })
  
  
  def about(request):
      return render(request, 'main/about.html', {
          'page_title': 'Σχετικά',
      })
  
  
  def program_redir(request):
      return redirect(reverse('main:program_teams'))
  
  
  def program_teams(request):
      teams = Team.objects.filter(alumni=False).order_by('name')
      return render(request, 'main/program-teams.html', {
          'teams': teams,
      })
  
  
  def program_mentors(request):
      mentors = Mentor.objects.order_by('name')
      return render(request, 'main/program-mentors.html', {
          'mentors': mentors,
      })
  
  
  def program_alumni(request):
      teams = Team.objects.filter(alumni=True).order_by('name')
      return render(request, 'main/program-alumni.html', {
          'teams': teams,
      })
  
  
  def events(request):
      events = Event.objects.order_by('-date')[:10]
      meetups = Meetup.objects.order_by('name')
      return render(request, 'main/events.html', {
          'events': events,
          'meetups': meetups,
      })
  
  
  def blog(request):
      posts_list = Post.objects.order_by('-date')[:10]
      return render(request, 'main/blog.html', {
          'posts_list': posts_list,
      })
  
  
  def blog_post(request, post_slug):
      post = Post.objects.get(slug=post_slug)
      return render(request, 'main/post.html', {
          'post': post,
      })
  
  
  def contact(request):
      return render(request, 'main/contact.html')
  
  
  def apply(request):
      if request.method == 'POST':
          form = ApplicationForm(request.POST)
          if form.is_valid():
              form.save()
              messages.info(request, 'Thank you for applying!')
              return HttpResponseRedirect('/apply')
          else:
              return HttpResponse('Application form submission is invalid.')
      else:
          form = ApplicationForm()
          return render(request, 'main/apply.html', {'form': form})
  
  
  def health(request):
      return HttpResponse('Ok')
  
subject: fix blog post view method