Cannot resolve keyword 'name' into field using get_queryset - django

Question

Sorry is this is basic but I'm new at this
I am attempting to take the captured group from a url in the template, (the primary key of the story model) and then use that to filter the correct posts from the Post datbase, which it has a one(story) to many(Post) relationship with. I based the code of the docs: https://docs.djangoproject.com/en/2.0/topics/class-based-views/generic-display/#dynamic-filtering
But when I run it, I get the error:
FieldError at /story/1/
Cannot resolve keyword 'name' into field. Choices are: body, id, title, work, work_id
My code:
#views
from django.shortcuts import get_object_or_404, render
from django.views.generic import ListView, DetailView
from . models import Post, Story
class StoryListView(ListView):
model = Story
template_name = 'home.html'
class PostListView(ListView):
template_name = 'story_overview.html'
def get_queryset(self):
self.work_id=get_object_or_404(Post, name=self.kwargs['pk'])
return Post.objects.filter(work_id=self.work_id)
#urls
from django.urls import path
from . import views
urlpatterns = [
path('', views.StoryListView.as_view(), name='home'),
path('story/<int:pk>/', views.PostListView.as_view(), name='story_overview'),
]
#templates/home.html
{% extends 'base.html' %}
{% block content %}
{% for post in object_list %}
<h2>{{ post.title }}</h2>
<p>{{ post.description }}</p>
{% endfor %}
{% endblock content %}
#models
from django.db import models
class Story(models.Model):
title = models.CharField(max_length=200)
description = models.CharField(max_length=1500, default= "Description")
def __str__(self):
return self.title
class Post(models.Model):
title = models.CharField(max_length=200, default= "Title")
work = models.ForeignKey(Story,on_delete=models.CASCADE,)
body = models.TextField()
def __str__(self):
return self.title

Answer 1

If you filter using work_id then you should use the integer.
def get_queryset(self):
return Post.objects.filter(work_id=self.kwargs['pk'])
If you want to fetch the Story instance then you should call get_object_or_404 with Story, and filter on the pk field instead of name:
def get_queryset(self):
self.work=get_object_or_404(Story, pk=self.kwargs['pk'])
return Post.objects.filter(work=self.work)
Note I've renamed work_id to work because it's a model instance, not an id.

Answer 2

You are trying to get object from Post() model using name field. Is name field present in your Post() model?
Instead of doing this
self.work_id=get_object_or_404(Post, name=self.kwargs['pk'])
Do this
self.work_id=get_object_or_404(Post, id=self.kwargs['pk'])
Hope it helps!