I am currently working on the django project and for some reason my code will not run on the localhost server. I started having problems after the first few steps when I imported things. I kept going thinking I just would not be able to see the progress but step 12 actually has me click a button on the server itself to add information. If it will not load, than I cannot complete it.
I lined up my code with the Youtube solution. Am I missing something?
Link to Exercise: https://www.codecademy.com/paths/build-python-web-apps-with-django/tracks/views-in-django/modules/django-writing-more-views/projects/the-django-djitney
Link to Youtube Solution:
views.py
from django.shortcuts import render
from .models import Line, Station, Stop
from .forms import StopForm, LineForm, StationForm
# Add your imports below:
from django.views.generic import TemplateView,ListView
from django.views.edit import CreateView, UpdateView, DeleteView
class HomeView(TemplateView):
template_name = "routes/home.html"
def get_context_data(self):
context = super().get_context_data()
context["lines"] = Line.objects.all()
context["stations"] = Station.objects.all()
context["stops"] = Stop.objects.all()
return context
# Create your views here.
class LinesView(ListView):
template_name = "routes/lines.html"
model = Line
# step 8
class CreateLineView(CreateView):
model = Line
template_name = "routes/add_line.html"
form_class = "LineForm"
# Create View creates a new record in the database using a provided Django form. It handles both GET (displaying the form) and POST(processing the submitted data) requests.
# step 9
class UpdateLineView(UpdateView):
model = Line
template_name = 'routes/update_line.html'
form_class = LineForm
# step 10
class DeleteLineView(DeleteView):
model = Line
template_name = 'routes/delete_line.html'
success_url = "/lines"
# There are files in the routes folder for create, update, and delete.
urls.py
from django.urls import path
from . import views
urlpatterns = [
path('', views.HomeView.as_view(), name='home'),
# step 6
path("lines/", views.LinesView.as_view()
, name = "lines"),
# step 7
path('lines/new/', views.CreateLineView.as_view(), name = 'create_line'),
# step 8
path('lines/<pk>/update/', views.UpdateLineView.as_view(), name = 'update_line'),
# step 10
path('lines/<pk>/delete', views.DeleteLineView.as_view(), name = 'delete_line'),
]
# I found the name = value in the routes/lines.html.
# mark question what is the syntax of the path line.
# path(route, view, kwargs=None, name=None)
models.py
from django.db import models
class Line(models.Model):
name = models.CharField(unique=True, max_length=200)
def get_absolute_url(self):
return "/lines"
def __str__(self):
return f"{self.name}"
class Station(models.Model):
name = models.CharField(unique=True, max_length=200)
accessible = models.BooleanField(default=False)
def get_absolute_url(self):
return "/stations"
def __str__(self):
return f"{self.name}{' (♿)' if self.accessible else ''}"
class Stop(models.Model):
# The snippet of code below ensures that no line can have two stops with the same stop number
class Meta:
unique_together = (('line', 'stop_number'))
def get_absolute_url(self):
return "/stops"
line = models.ForeignKey(Line, on_delete=models.CASCADE)
station = models.ForeignKey(Station, on_delete=models.CASCADE)
stop_number = models.PositiveIntegerField()
def __str__(self):
return f"{self.line.name} -- {self.station.name} [{self.stop_number}]"
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