django Markdown problems - django

Question

Django:1.11.5
Python:3.5.2
Markdown 2.6.9 https://pypi.python.org/pypi/Markdown/
views.py
from django.shortcuts import render
from .models import Post
import markdown
def home(request):
Post_list = Post.objects.all().order_by('-pub_date')
Post.content = markdown.markdown(Post.content)
return render(request, 'home.html',
context={'Post_list':Post_list})
# Create your views here.
models.py
from django.db import models
import django.utils.timezone as timezone
class Category(models.Model):
name = models.CharField(max_length=100)
class Post(models.Model):
title = models.CharField(max_length=256)
content = models.TextField(blank = True, null = True)
pub_date = models.DateTimeField(default=timezone.now)
update_time = models.DateTimeField(auto_now=True)
category = models.ForeignKey(Category)
# Create your models here.
Error message
AttributeError at /
'DeferredAttribute' object has no attribute 'strip'
Request Method: GET
Request URL: http://www.balinzuoqi.com/
Django Version: 1.11.5
Exception Type: AttributeError
Exception Value:
'DeferredAttribute' object has no attribute 'strip'
Exception Location: /usr/local/lib/python3.5/dist-packages/markdown/__init__.py in convert, line 355
Python Executable: /usr/bin/python3
Python Version: 3.5.2
Python Path:
['/data/mysite',
'/usr/local/bin',
'/usr/lib/python35.zip',
'/usr/lib/python3.5',
'/usr/lib/python3.5/plat-i386-linux-gnu',
'/usr/lib/python3.5/lib-dynload',
'/usr/local/lib/python3.5/dist-packages',
'/usr/lib/python3/dist-packages']
Do not know where there is a problem.
Remove Post.content = markdown.markdown (Post.content), show normal!
English is not my native language; please excuse typing errors.

Answer 1

You are reading content from and writing content to the Post class, not an instance of the class. You need to iterate through the list and update each instance:
def home(request):
Post_list = Post.objects.all().order_by('-pub_date')
for post in Post_list:
post.content = markdown.markdown(post.content)
return render(request, 'home.html',
context={'Post_list':Post_list})
Whether that is a recommended way of converting Markdown to HTML to pass to a template is another matter. Its been a few years since I've used Django, but that wasn't how it used to be done. However, that is a different question.
Regardless, you were not actually passing any Markdown text to the Markdown parser as you were not using an instance of the class. With the for loop I added above, the Markdown content for each 'Post' is now being passed to the Markdown parser.