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Diffstat (limited to 'tutorial_4_django_views_templates')
| -rw-r--r-- | tutorial_4_django_views_templates/slides.md | 77 |
1 files changed, 49 insertions, 28 deletions
diff --git a/tutorial_4_django_views_templates/slides.md b/tutorial_4_django_views_templates/slides.md index 8021b50..4cf77c6 100644 --- a/tutorial_4_django_views_templates/slides.md +++ b/tutorial_4_django_views_templates/slides.md @@ -45,34 +45,33 @@ Demonstration [02:00 | 02:52] Edit the /blog/views.py - # /blog/views.py from django.http import HttpResponse - from .models import Blog - - def get_blogs(request): - blogs = Blog.objects.all() # This is called a query - return HttpResponse(blogs) - - - Narrator Notes: Please state that Django queries will be explained later in the series, - and should explain the above code. + def index(request): + return HttpResponse("Hello, world. You are at the blog index") Demonstration [02:50 | 05:42] ----------- **Add URL routing to URLConf** -Now change the /myproject/urls.py so that the project knows which urls file to call +- Create ```urls.py``` in blog app + + from django.urls import path + from . import views -This is called the URL Dispatcher + app_name = 'blog' + urlpatterns = [ + path('', views.index, name='index'), + ] + +Now change the ```/myproject/urls.py``` so that the project knows which urls file to call - # /myproject/urls.py - from django.conf.urls import include, url from django.contrib import admin - from blog import views + from django.urls import path, include urlpatterns = [ - url(r'^admin/', admin.site.urls), - url(r'^blogs/$', views.get_blogs, name='blogs') # Add this line + path('admin/', admin.site.urls), + path('blogs/', include('blog.urls', namespace='blogs')), ] - Run the django server using command: @@ -90,17 +89,38 @@ Demonstration [01:30 | 06:22] ----------- In the /blog/views.py edit get_blogs function - + + from .models import Blog + + def get_blogs(request): + blogs = Blog.objects.all() # This is called a django query + return HttpResponse(blogs) + +- Narrator Notes: Please state that Django queries will be explained later in the series. +- Show the blog in the output created in previous tutorial + +- Let us append the url to the urlpatterns in ```blog/urls.py``` + + + urlpatterns = [ + . + path('get_blogs/', views.get_blogs, name='get_blogs'), + ] + + - Go to the url http://localhost:8000/blogs/get_blogs and show the output. + +- Improving the output + def get_blogs(request): blogs = Blog.objects.all() # This is called a query - response = 'Blogs:\n\n' + response = 'Blogs:' for blog in blogs: - response += '{0}\n'.format(blog) + response += '<\ br> {0} '.format(blog) return HttpResponse(response) - Narrator Notes: Should explain the above code. - Save and again show the browser. - - We now see the individual blog object created in tutorial 3. + - Show the blog in the output created in previous tutorial Demonstration [01:30 | 07:52] @@ -108,15 +128,16 @@ Demonstration [01:30 | 07:52] Let us further edit the view to display articles related to a blog. In the /blog/views.py edit get_blogs function + from .models import Blog, Article - def get_blogs(request): - blogs = Blog.objects.all() # This is called a query - response = 'Blogs:\n\n' - for blog in blogs: - articles = Articles.objects.filter(blog=blog) - response += '{0}\n'.format(blog) - response += '\n'.join([article.title for article in articles]) - return HttpResponse(response) + def get_blogs(request): + blogs = Blog.objects.all() # This is called a query + response = 'Blogs:' + for blog in blogs: + articles = Article.objects.filter(blog=blog) + response += '<br \> {0} '.format(blog) + response += ', '.join([article.title for article in articles]) + return HttpResponse(response) - Narrator Notes: Should explain the above code. - Save and again show the browser. |