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January 21, 2019 15:29
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| <!DOCTYPE html> | |
| {% load staticfiles %} | |
| <html> | |
| <head> | |
| <title> Rango - | |
| {% block title_block %} | |
| How to Tango with Django! | |
| {% endblock %} | |
| </title> | |
| </head> | |
| <body> | |
| <div> | |
| {% block body_block %} | |
| {% endblock %} | |
| </div> | |
| <hr /> | |
| <div> | |
| <ul> | |
| <li><a href="{% url 'add_category' %}">Add New Category</a></li> | |
| <li><a href="{% url 'about' %}">About</a></li> | |
| <li><a href="{% url 'index' %}">Index</a></li> | |
| </ul> | |
| </div> | |
| </body> | |
| </html> |
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| NoReverseMatch at /rango/about/ | |
| Reverse for 'add_category' not found. 'add_category' is not a valid view function or pattern name. | |
| Request Method: GET | |
| Request URL: http://127.0.0.1:8000/rango/about/ | |
| Django Version: 1.11.17 | |
| Exception Type: NoReverseMatch | |
| Exception Value: | |
| Reverse for 'add_category' not found. 'add_category' is not a valid view function or pattern name. | |
| Exception Location: /Users/markglasgow/anaconda3/envs/rango/lib/python3.7/site-packages/django/urls/resolvers.py in _reverse_with_prefix, line 497 | |
| Python Executable: /Users/markglasgow/anaconda3/envs/rango/bin/python3 | |
| Python Version: 3.7.2 | |
| Python Path: | |
| ['/Users/markglasgow/Documents/GitHub/semtwo/WAD/2018/Workspace/tango_with_django_project', | |
| '/Users/markglasgow/anaconda3/envs/rango/lib/python37.zip', | |
| '/Users/markglasgow/anaconda3/envs/rango/lib/python3.7', | |
| '/Users/markglasgow/anaconda3/envs/rango/lib/python3.7/lib-dynload', | |
| '/Users/markglasgow/anaconda3/envs/rango/lib/python3.7/site-packages'] | |
| Server time: Mon, 21 Jan 2019 15:23:45 +0000 |
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| ### | |
| ### | |
| # - rango URLs | |
| ### | |
| ### | |
| from django.conf.urls import url | |
| from rango import views | |
| app_name = 'rango' | |
| urlpatterns = [ | |
| url(r'^$', views.index, name='index'), | |
| url(r'^about/$', views.about, name='about'), | |
| url(r'^add_category/$', views.add_category, name='add_category'), | |
| url(r'^category/(?P<category_name_slug>[\w\-]+)/$', views.show_category, name='show_category'), | |
| url(r'^category/(?P<category_name_slug>[\w\-]+)/add_page/$', views.add_page, name='add_page'), | |
| ] |
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| from django.shortcuts import render | |
| # Import the Category model | |
| from rango.forms import CategoryForm | |
| from rango.models import Category | |
| from rango.models import Page | |
| from rango.forms import PageForm | |
| def index(request): | |
| category_list = Category.objects.order_by('-likes')[:5] | |
| page_list = Page.objects.order_by('-views')[:5] | |
| context_dict = {'categories': category_list, 'pages': page_list} | |
| return render(request, 'rango/index.html', context=context_dict) | |
| def about(request): | |
| return render(request, 'rango/about.html') | |
| def show_category(request, category_name_slug): | |
| context_dict = {} | |
| try: | |
| category = Category.objects.get(slug=category_name_slug) | |
| pages = Page.objects.filter(category=category) | |
| context_dict['pages'] = pages | |
| context_dict['category'] = category | |
| except Category.DoesNotExist: | |
| context_dict['category'] = None | |
| context_dict['pages'] = None | |
| return render(request, 'rango/category.html', context_dict) | |
| def add_category(request): | |
| form = CategoryForm() | |
| # A HTTP POST? | |
| if request.method == 'POST': | |
| form = CategoryForm(request.POST) | |
| # Have we been provided with a valid form? | |
| if form.is_valid(): | |
| # Save the new category to the database. | |
| form.save(commit=True) | |
| # Now that the category is saved | |
| # We could give a confirmation message | |
| # But since the most recent category added is on the index page # Then we can direct the user back to the index page. | |
| return index(request) | |
| else: | |
| # The supplied form contained errors - # just print them to the terminal. | |
| print(form.errors) | |
| # Will handle the bad form, new form, or no form supplied cases. # Render the form with error messages (if any). | |
| return render(request, 'rango/add_category.html', {'form': form}) | |
| def add_page(request, category_name_slug): | |
| try: | |
| category = Category.objects.get(slug=category_name_slug) | |
| except Category.DoesNotExist: | |
| category = None | |
| form = PageForm() | |
| if request.method == 'POST': | |
| form = PageForm(request.POST) | |
| if form.is_valid(): | |
| if category: | |
| page = form.save(commit=False) | |
| page.category = category | |
| page.views = 0 | |
| page.save() | |
| return show_category(request, category_name_slug) | |
| else: | |
| print(form.errors) | |
| context_dict = {'form':form, 'category': category} | |
| return render(request, 'rango/add_page.html', context_dict) |
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