I was learning how to implement django cache framework in my simple web
application.
I've used postgresql database and i've created my_cache_table. I tried
using "per-view cache" technique but it doesn't work. No database entries
at my_cache_table have been created.
#settings.py
MIDDLEWARE_CLASSES =
['django.middleware.security.SecurityMiddleware','django.contrib.sessions.middleware.SessionMiddleware','django.middleware.common.CommonMiddleware','django.middleware.csrf.CsrfViewMiddleware','django.contrib.auth.middleware.AuthenticationMiddleware','django.contrib.auth.middleware.SessionAuthenticationMiddleware','django.contrib.messages.middleware.MessageMiddleware','django.middleware.clickjacking.XFrameOptionsMiddleware',]
# Database
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': 'shopprsense',
'USER': 'shopprsense',
'PASSWORD': 'password',
'HOST': 'localhost',
'PORT': '',
}}
CACHES = {
'default': {
'BACKEND': 'django.core.cache.backends.db.DatabaseCache',
'LOCATION': 'my_cache_table',
'TIMEOUT': 3600,
'OPTIONS': {
'MAX_ENTRIES': 1000
}
}}
#urls.py
urlpatterns = [
url(r'^$', views.search_form),
url(r'^s', cache_page(60 * 60)(views.search)),
]
#views.pyfrom .scraper import scrapefrom django.views.decorators.cache import
cache_page
def search_form(request):
return render(request, 'scraper/search_form.html')
def search(request):
q = request.GET["k"]
ftitles, fprices, furls = scrape(q)
context = {'ftitles': ftitles, 'fprices': fprices , 'furls': furls , 'q': q}
return render(request, 'scraper/output.html', context)
This is how my web app works -
1.User enters keyword to search
2.Keyword is sent to the script "scrape.py" and processed and output is
rendered and displayed in a page output.html.
My QUESTION -
-
It would be great if i could cache the search view response so that a
hefty process that happens in the search view can be avoided.
-
So when user searches for the same keyword that has been cached, the
response can be displayed from cache avoiding the process.
-
I tried using per-view caching in urls but it doesn't work
-
Please point out what am i missing here .
Any help is appreciated.
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