def index(request):
# Request the context of the request.
# The context contains information such as the client's machine details, for example.
#context = RequestContext(request)
# NOT ANYMORE WITH RENDER
# Query the database for a list of ALL categories currently stored.
# Order the categories by no. likes in descending order.
# Retrieve the top 5 only - or all if less than 5.
# Place the list in our context_dict dictionary which will be
# passed to the template engine.
category_list = Category.objects.order_by('-likes')[:5]
page_list = Page.objects.order_by('-views')[:5]
cat_list = get_category_list()
context_dict = {'categories': category_list, 'pages': page_list,
'cat_list': cat_list}
# The following two lines are new.
# We loop through each category returned, and create a URL
# attribute. This attribute stores an encoded URL (e.g. spaces
# replaced with underscores).
for category in category_list:
category.url = Category.encode(category.name)
# Return a rendered response to send to the client.
# We make use of the shortcut function to make our lives easier.
# Note that the first parameter is the template we wish to use.
# Get the number of visits to the site.
# We use the COOKIES.get() function to obtain the visits cookie.
# If the cookie exists, the value returned is casted to an integer.
# If the cookie doesn't exist, we default to zero and cast that.
visits = int(request.COOKIES.get('visits', '0'))
if request.session.get('last_visit'):
# The session has a value for The last visit
last_visit_time = request.session.get('last_visit')
visits = request.session.get('visits', 0)
if (datetime.now() - datetime.strptime(last_visit_time[:-7], "%Y-%m-%d %H:%M:%S")).days > 0:
request.session['visits'] = visits + 1
request.session['last_visit'] = str(datetime.now())
else:
# The get returns None, and the session does not have a value for the last visit.
request.session['last_visit'] = str(datetime.now())
request.session['visits'] = 1
# Return response back to the user, updating any cookies that need
# changed.
response = render(request, 'rango/index.html', context_dict)
return response
def get_category_list(max_results=0, starts_with=''):
cat_list = []
if starts_with:
cat_list = Category.objects.filter(name__istartswith=starts_with)
else:
cat_list = Category.objects.all()
if max_results > 0:
if len(cat_list) > max_results:
cat_list = cat_list[:max_results]
for cat in cat_list:
cat.url = Category.encode(cat.name)
return cat_list
