old_contents: from django.shortcuts import render
  from models import *
  from forms import *
  from django.template.loader import *
  
  # Create your views here.
  def homepage(request):
      # get top five blogs here
      latest_article = Article.objects.order_by('-article_published_time')[:5]
      page_name = 'ME_KUN_HAN'
      context = {'latest_article': latest_article, 'page_name':page_name}
      return render(request, 'blog/index.html', context)
  
  
  def page_list(request, page_list_num):
      # get the blog begin with blog_begin_num
      i_page_num = int(page_list_num)
      list_article = Article.objects.order_by('-article_published_time')[(i_page_num - 1) * 2:(i_page_num - 1) * 2 + 2]
      # get the number of all pages.
      # PS: the max size of blogs in one page is 5
      if i_page_num < 2:
          previous = 1
      else:
          previous = i_page_num - 1
  
      count = Article.objects.all().count()
      print("the i_page_num is ", i_page_num, " the article's count is ", count)
      if i_page_num * 2 > count:
          next_page = i_page_num
      else:
          next_page = i_page_num + 1
      list_page = [previous, next_page, count]
      context = {
          'list_article': list_article,
          'list_page': list_page,
      }
      return render(request, 'blog/pagelist.html', context)
  
  
  def article_page(request, article_file):
      # get comments here 
      return render(request, 'blog/BlogPages/' + article_file + '.html')
  
  
  def leave_message(request):
      if request.method == 'POST':
          message = ContactMeMessage(request.POST)
          print(message['customer_name'].value())
      return render(request, 'blog/leave_message_result.html')
  
  
  # static files
  def aboutMe(request):
      return render(request, 'blog/about.html')
  
  
  def contact(request):
      return render(request, 'blog/contact.html')
  
  
  def post(request):
      return render(request, 'blog/post.html')
  
new_contents: from django.shortcuts import render
  from models import *
  from forms import *
  from django.template.loader import *
  
  # Create your views here.
  def homepage(request):
      # get top five blogs here
      latest_article = Article.objects.order_by('-article_published_time')[:5]
      page_name = 'ME_KUN_HAN'
      context = {'latest_article': latest_article, 'page_name':page_name}
      return render(request, 'blog/index.html', context)
  
  
  def page_list(request, page_list_num):
      # get the blog begin with blog_begin_num
      i_page_num = int(page_list_num)
      list_article = Article.objects.order_by('-article_published_time')[(i_page_num - 1) * 2:(i_page_num - 1) * 2 + 2]
      # get the number of all pages.
      # PS: the max size of blogs in one page is 5
      if i_page_num < 2:
          previous = 1
      else:
          previous = i_page_num - 1
  
      count = Article.objects.all().count()
      print("the i_page_num is ", i_page_num, " the article's count is ", count)
      if i_page_num * 2 >= count:
          next_page = i_page_num
      else:
          next_page = i_page_num + 1
      list_page = [previous, next_page, count]
      context = {
          'list_article': list_article,
          'list_page': list_page,
      }
      return render(request, 'blog/pagelist.html', context)
  
  
  def article_page(request, article_file):
      # get comments here 
      return render(request, 'blog/BlogPages/' + article_file + '.html')
  
  
  def leave_message(request):
      if request.method == 'POST':
          message = ContactMeMessage(request.POST)
          print(message['customer_name'].value())
      return render(request, 'blog/leave_message_result.html')
  
  
  # static files
  def aboutMe(request):
      return render(request, 'blog/about.html')
  
  
  def contact(request):
      return render(request, 'blog/contact.html')
  
  
  def post(request):
      return render(request, 'blog/post.html')
  
subject: fix bug: sometimes there is a blank page when press next button