CODEWITHSUNDEEP
pythondjangopaginationlogic
doniyor
doniyor

Reputation: 37904

django pagination understanding issue

I am trying to understand the principles of Django pagination logic.

My understanding problem is:
I have a search result page with 40 items inside. I want to use pagifier and show only 10 items per page.
Now let's say, someone has searched for "car BMW" in my search. then he lands to first page with 10 cars.

My question is, whether the query "car BMW" will be kept in request?
I am not quite sure about the view which is paging the pages.

Do I have to have 2 view functions:

  1. normal search
  2. re-search because of paging?

Can someone please help me understand this logic? I read the docs but it is not mentioned there or I am too dumb to understand it.

Upvotes: 0

Views: 148

Answers (2)

Akshar Raaj
Akshar Raaj

Reputation: 15231

Pagination is only concerned with queryset and just take your queryset and slices it to return the number of entries you expect on a particular page. eg: In your case, only 10 entries applicable for a particular page.

It doesn't make any modification to your request.

You can handle it with a single view.

Example:

def get_cars(self, request, page=1):
    cars_per_page = 10
    search_term = request.REQUEST.get('car_type')  #car_type 'car bmw' will still be kept in request
    all_cars = Car.objects.filter(car_type__contains=search_term)
    paginator = Paginator(all_cars, cars_per_page)
    page_ = paginator.page(page)
    result_cars = page_.object_list
    return render(request, "search_cars.html", {'search_term': search_term})

If you expect page to be available in request as well, then you can do:

def get_cars(self, request):
    page = request.GET.get('page')
    ...
    #Everything else described above.
    ...

Upvotes: 1

stalk
stalk

Reputation: 12054

Usually, search request will be:

example.com/search/?q=car+bmw

Pagination will use query (to filter objects by car+bmw) and then apply limit. For first page it will be (0, 10) When somebody will click at second page, the request will be:

example.com/search/?q=car+bmw&page=2

Pagination will use the same query but with another offset: (10, 20)

You just need to provide the desired query to pagination, and pagination will do the rest of the work.

From django example, you need to modify contact_list query.

Upvotes: 3

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