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Test your basic knowledge |
Django Middleware
Start Test
Study First
Subject
:
it-skills
Instructions:
Answer 21 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Enables language selection based on data from the request. It customizes content for each user. See the internationalization documentation.
Locale
View metadata
Authentication
process_template_response(self, request, response)
2. Binds commit and rollback to the request/response phase. If a view function runs successfully - a commit is done. If it fails with an exception - a rollback is done.
Authentication
Transaction
Template
Message
3. Enable the site-wide cache. If these are enabled - each Django-powered page will be cached for as long as the CACHE_MIDDLEWARE_SECONDS setting defines. See the cache documentation.
Common
Cache
View metadata
process_template_response(self, request, response)
4. Tell the system to do something (ie. if statements)
Conditional GET
Template tags
Common
Authentication
5. Sends custom X-View HTTP headers to HEAD requests that come from IP addresses defined in the INTERNAL_IPS setting. This is used by Django's automatic documentation system.
Locale
Session
process_template_response(self, request, response)
View metadata
6. To start the server
Transaction
process_view(self, request, view_func, view_args, view_kwargs)
Cache
python manage.py runserver
7. This method is always called, even if the process_request() and process_view() methods of the same middleware class were skipped because an earlier middleware method returned an HttpResponse (this means that your process_response() method cannot rely
process_response(self, request, response)
Conditional GET
Locale
process_request(self, request)
8. During the request phases (process_request() and process_view() middleware), Django applies middleware in the order it's defined in MIDDLEWARE_CLASSES, top-down. During the response phases (process_response() and process_exception() middleware), the
process_response(self, request, response)
process_exception(self, request, exception)
python manage.py runserver
middleware processing sequence
9. Dictionary - Attribute - Method calls - ListIndex - It uses the first one to work using a short circuit method.
CSRF protection
process_request(self, request)
Django dot look ups
process_view(self, request, view_func, view_args, view_kwargs)
10. This method is called on each request, before Django decides which view to execute.
process_response(self, request, response)
Template tags
GZIP
process_request(self, request)
11. Adds protection against Cross Site Request Forgeries by adding hidden form fields to POST forms and checking requests for the correct value.
process_exception(self, request, exception)
middleware processing sequence
process_view(self, request, view_func, view_args, view_kwargs)
CSRF protection
12. Django calls this when a view raises an exception. This should return either None or an HttpResponse object. If it returns an HttpResponse object, the response will be returned to the browser. Otherwise, default exception handling kicks in.
python manage.py runserver
process_request(self, request)
process_exception(self, request, exception)
process_template_response(self, request, response)
13. Adds the user attribute - representing the currently-logged-in user - to every incoming HttpRequest object. See Authentication in Web requests.
Authentication
Transaction
Django dot look ups
Template
14. 1) Forbids access to user agents in the DISALLOWED_USER_AGENTS setting - which should be a list of strings. 2) Performs URL rewriting based on the APPEND_SLASH and PREPEND_WWW settings. 3) Sends broken link notification emails to MANAGERS if SEND_BRO
Common
Conditional GET
process_exception(self, request, exception)
Template tags
15. To produce the 'markup' or presentation of the site.
Template
Message
Cache
Conditional GET
16. This must return an SimpleTemplateResponse (or its subclass) object. It could alter the given response by changing response.template_name and response.context_data, or it could create and return a brand-new SimpleTemplateResponse (or its subclass) in
process_template_response(self, request, response)
Message
middleware processing sequence
Django dot look ups
17. Enables cookie- and session-based message support.
middleware processing sequence
Template
Message
CSRF protection
18. Enables session support. See the session documentation.
Template tags
process_response(self, request, response)
process_request(self, request)
Session
19. Handles conditional GET operations. If the response has a ETag or Last-Modified header - and the request has If-None-Match or If-Modified-Since - the response is replaced by an HttpNotModified.
View metadata
process_request(self, request)
process_view(self, request, view_func, view_args, view_kwargs)
Conditional GET
20. This is called just before Django calls the view. It should return either None or an HttpResponse object. If it returns None, Django will continue processing this request, executing any other such middleware and, then, the appropriate view. If it ret
Session
process_view(self, request, view_func, view_args, view_kwargs)
Transaction
Common
21. Compresses content for browsers that understand gzip compression (all modern browsers).
GZIP
Django dot look ups
Message
process_view(self, request, view_func, view_args, view_kwargs)