def page(self, number):
"""
Returns a Page object for the given 1-based page number.
"""
number = self.validate_number(number)
bottom = (number - 1) * self.per_page
top = bottom + self.per_page
marker_value, pages = _get_marker(self.queryset_id, number)
if marker_value:
if len(self.original_orderings
) == 1 and self.original_orderings[0].startswith("-"):
qs = self.object_list.all().filter(
**{"{}__lt".format(self.field_required): marker_value})
else:
qs = self.object_list.all().filter(
**{"{}__gt".format(self.field_required): marker_value})
bottom = pages * self.per_page # We have to skip the pages here
top = bottom + self.per_page
else:
qs = self.object_list
results = list(qs[bottom:top + (self.per_page * self.readahead)])
next_page = results[top:]
next_page_counter = number + 1
while next_page:
if len(next_page) > self.per_page - 1:
index = self.per_page - 1
else:
index = len(next_page) - 1
_store_marker(self.queryset_id, next_page_counter,
getattr(next_page[index], self.field_required))
next_page_counter += 1
next_page = next_page[self.per_page:]
if not results and not self.allow_empty_first_page:
raise paginator.EmptyPage("That page contains no results")
known_count = ((number - 1) * self.per_page) + len(results)
_update_known_count(self.queryset_id, known_count)
page = self._get_page(results[:self.per_page], number, self)
if len(page.object_list) > self.per_page - 1:
index = self.per_page - 1
else:
index = len(page.object_list) - 1
if results:
_store_marker(
self.queryset_id, number,
getattr(page.object_list[index], self.field_required))
return page
def validate_number(self, number):
"""Override default handling to remove the extra search query
"""
try:
number = int(number)
except (TypeError, ValueError):
raise django_paginator.PageNotAnInteger(
'That page number is not an integer')
if number < 1:
raise django_paginator.EmptyPage('That page number is less than 1')
return number
def validate_number(self, number):
"""
Validates the given 1-based page number.
"""
try:
number = int(number)
except (TypeError, ValueError):
raise paginator.PageNotAnInteger(
'That page number is not an integer')
if number < 1:
raise paginator.EmptyPage('That page number is less than 1')
return number