Python django.core.paginator.InvalidPage() Examples

def discussion_index(request, course_slug):
    """
    Index page to view all discussion topics
    """
    course, view = _get_course_and_view(request, course_slug)
    if view is None:
        # course is an HttpResponse in this case
        return course
    topics = DiscussionTopic.objects.filter(offering=course).order_by('-pinned', '-last_activity_at')
    activity.update_last_viewed(_get_member(request.user.username, view, course_slug))
    paginator = Paginator(topics, 10)
    try:
        page = int(request.GET.get('page', '1'))
    except ValueError:
        page = 1
    try:
        topics = paginator.page(page)
    except (EmptyPage, InvalidPage):
        topics = paginator.page(paginator.num_pages)
    context = {'course': course, 'topics': topics, 'view': view, 'paginator': paginator, 'page': page}
    return render(request, 'discuss/index.html', context) 

def paginate_queryset(self, queryset, page_size):
        """
        Paginate the queryset, if needed.
        """
        paginator = self.get_paginator(
            queryset, page_size, orphans=self.get_paginate_orphans(),
            allow_empty_first_page=self.get_allow_empty())
        page_kwarg = self.page_kwarg
        page = self.kwargs.get(page_kwarg) or self.request.GET.get(page_kwarg) or 1
        try:
            page_number = int(page)
        except ValueError:
            if page == 'last':
                page_number = paginator.num_pages
            else:
                raise Http404(_("Page is not 'last', nor can it be converted to an int."))
        try:
            page = paginator.page(page_number)
            return (paginator, page, page.object_list, page.has_other_pages())
        except InvalidPage as e:
            raise Http404(_('Invalid page (%(page_number)s): %(message)s') % {
                'page_number': page_number,
                'message': str(e)
            }) 

def paginate_queryset(self, queryset, page_size):
        """
        Paginate the queryset, if needed.
        """
        paginator = self.get_paginator(queryset, page_size, allow_empty_first_page=self.get_allow_empty())
        page_kwarg = self.page_kwarg
        page = self.kwargs.get(page_kwarg) or self.request.GET.get(page_kwarg) or 1
        try:
            page_number = int(page)
        except ValueError:
            if page == 'last':
                page_number = paginator.num_pages
            else:
                raise Http404(_("Page is not 'last', nor can it be converted to an int."))
        try:
            page = paginator.page(page_number)
            return (paginator, page, page.object_list, page.has_other_pages())
        except InvalidPage as e:
            raise Http404(_('Invalid page (%(page_number)s): %(message)s') % {
                                'page_number': page_number,
                                'message': str(e)
            }) 

def paginate_queryset(self, queryset, page_size):
        """
        Paginate the queryset, if needed.
        """
        paginator = self.get_paginator(
            queryset, page_size, orphans=self.get_paginate_orphans(),
            allow_empty_first_page=self.get_allow_empty())
        page_kwarg = self.page_kwarg
        page = self.kwargs.get(page_kwarg) or self.request.GET.get(page_kwarg) or 1
        try:
            page_number = int(page)
        except ValueError:
            if page == 'last':
                page_number = paginator.num_pages
            else:
                raise Http404(_("Page is not 'last', nor can it be converted to an int."))
        try:
            page = paginator.page(page_number)
            return (paginator, page, page.object_list, page.has_other_pages())
        except InvalidPage as e:
            raise Http404(_('Invalid page (%(page_number)s): %(message)s') % {
                'page_number': page_number,
                'message': force_text(e),
            }) 

def paginate_queryset(self, queryset, page_size):
        """
        Paginate the queryset, if needed.
        """
        paginator = self.get_paginator(
            queryset, page_size, orphans=self.get_paginate_orphans(),
            allow_empty_first_page=self.get_allow_empty())
        page_kwarg = self.page_kwarg
        page = self.kwargs.get(page_kwarg) or self.request.GET.get(page_kwarg) or 1
        try:
            page_number = int(page)
        except ValueError:
            if page == 'last':
                page_number = paginator.num_pages
            else:
                raise Http404(_("Page is not 'last', nor can it be converted to an int."))
        try:
            page = paginator.page(page_number)
            return (paginator, page, page.object_list, page.has_other_pages())
        except InvalidPage as e:
            raise Http404(_('Invalid page (%(page_number)s): %(message)s') % {
                'page_number': page_number,
                'message': force_text(e),
            }) 

def page(self, number):
        """
        Returns a Page object for the given 1-based page number.
        """
        number = self.validate_number(number)
        offset = (number - 1) * self.per_page
        limit = offset + self.per_page

        object_list = self.object_list[offset:limit]
        page = YTPage(object_list, number, self)

        if not page.num_pages:
            if number != 1 or not self.allow_empty_first_page:
                raise InvalidPage("That page contains no results")

        return page 

def paginate_queryset(self, queryset, page_size):
        """Paginate the queryset, if needed."""
        paginator = self.get_paginator(
            queryset, page_size, orphans=self.get_paginate_orphans(),
            allow_empty_first_page=self.get_allow_empty())
        page_kwarg = self.page_kwarg
        page = self.kwargs.get(page_kwarg) or self.request.GET.get(page_kwarg) or 1
        try:
            page_number = int(page)
        except ValueError:
            if page == 'last':
                page_number = paginator.num_pages
            else:
                raise Http404(_("Page is not 'last', nor can it be converted to an int."))
        try:
            page = paginator.page(page_number)
            return (paginator, page, page.object_list, page.has_other_pages())
        except InvalidPage as e:
            raise Http404(_('Invalid page (%(page_number)s): %(message)s') % {
                'page_number': page_number,
                'message': str(e)
            }) 

def paginate_queryset(self, queryset, page_size):
        if not self.use_infinite_pagination:
            return super().paginate_queryset(queryset, page_size)

        page_kwarg = self.page_kwarg
        page = self.kwargs.get(page_kwarg) or self.request.GET.get(page_kwarg) or 1
        try:
            page_number = int(page)
        except ValueError:
            raise Http404('Page cannot be converted to an int.')
        try:
            page = infinite_paginate(queryset, page_number, page_size, self.pad_pages)
            return DummyPaginator(page_size), page, page.object_list, page.has_other_pages()
        except InvalidPage as e:
            raise Http404('Invalid page (%(page_number)s): %(message)s' % {
                'page_number': page_number,
                'message': str(e),
            }) 

def record(request):
    user = request.user.username
    page_size = 10

    all_record = OperateRecord.objects.order_by('-id')
    paginator = Paginator(all_record, page_size)
    try:
        page = int(request.GET.get('page', 1))
    except ValueError:
        page = 1

    # page_id = range(((page-1)*13+1),(page*13+1))

    try:
        posts = paginator.page(page)
    except (EmptyPage, InvalidPage):
        posts = paginator.page(paginator.num_pages)

    return render(
        request,
        'record_list.html',
        {'posts': posts,
         # 'page_id': page_id,
         }
    ) 

def paginate_query_object(self, query_object, page_size):
        """Paginate the query object."""
        paginator = self.get_paginator(
            query_object, page_size,
            allow_empty_first_page=self.get_allow_empty())
        page = self.kwargs.get('page') or self.request.GET.get('page') or 1
        try:
            page_number = int(page)
        except ValueError:
            if page == 'last':
                page_number = paginator.num_pages
            else:
                raise InvalidPage("Page is not 'last', "
                                  "nor can it be converted to an int.")

        # DB2 fix for invalid 0 literal.
        # Generates FETCH 0 rows if not done this way
        if not paginator.count == 0:
            page = paginator.page(page_number)
            return (paginator, page, page.object_list, page.has_other_pages())
        else:
            return (paginator, Page([], 1, paginator), [], False) 

def render(self, context):
        key = self.queryset_var.var
        value = self.queryset_var.resolve(context)
        if isinstance(self.paginate_by, int):
            paginate_by = self.paginate_by
        else:
            paginate_by = self.paginate_by.resolve(context)
        paginator = Paginator(value, paginate_by, self.orphans)
        try:
            page_obj = paginator.page(context['request'].page)
        except InvalidPage:
            if INVALID_PAGE_RAISES_404:
                raise Http404('Invalid page requested.  If DEBUG were set to ' +
                    'False, an HTTP 404 page would have been shown instead.')
            context[key] = []
            context['invalid_page'] = True
            return u''
        if self.context_var is not None:
            context[self.context_var] = page_obj.object_list
        else:
            context[key] = page_obj.object_list
        context['paginator'] = paginator
        context['page_obj'] = page_obj
        return u'' 

def paginate_queryset(self, queryset, page_size):
        """Paginate the queryset, if needed."""
        paginator = self.get_paginator(
            queryset, page_size, orphans=self.get_paginate_orphans(),
            allow_empty_first_page=self.get_allow_empty())
        page_kwarg = self.page_kwarg
        page = self.kwargs.get(page_kwarg) or self.request.GET.get(page_kwarg) or 1
        try:
            page_number = int(page)
        except ValueError:
            if page == 'last':
                page_number = paginator.num_pages
            else:
                raise Http404(_("Page is not 'last', nor can it be converted to an int."))
        try:
            page = paginator.page(page_number)
            return (paginator, page, page.object_list, page.has_other_pages())
        except InvalidPage as e:
            raise Http404(_('Invalid page (%(page_number)s): %(message)s') % {
                'page_number': page_number,
                'message': str(e)
            }) 

def paginate_queryset(self, queryset, page_size):
    """
    Paginate the queryset, if needed.
    """
    paginator = self.get_paginator(
      queryset, page_size, orphans=self.get_paginate_orphans(),
      allow_empty_first_page=self.get_allow_empty())
    page_kwarg = self.page_kwarg
    page = self.kwargs.get(page_kwarg) or self.request.GET.get(page_kwarg) or 1
    try:
      page_number = int(page)
    except ValueError:
      raise Http404(_("Page can not be converted to an int."))
    try:
      page = paginator.page(page_number)
      return (paginator, page, page.object_list, page.has_other_pages())
    except InvalidPage as e:
      raise Http404(_('Invalid page (%(page_number)s): %(message)s') % {
        'page_number': page_number,
        'message': str(e)
      }) 

def render(self, context):
        key = self.queryset_var.var
        value = self.queryset_var.resolve(context)
        if isinstance(self.paginate_by, int):
            paginate_by = self.paginate_by
        else:
            paginate_by = self.paginate_by.resolve(context)
        paginator = Paginator(value, paginate_by, self.orphans)
        try:
            page_obj = paginator.page(context['request'].page)
        except InvalidPage:
            if INVALID_PAGE_RAISES_404:
                raise Http404('Invalid page requested.  If DEBUG were set to ' +
                    'False, an HTTP 404 page would have been shown instead.')
            context[key] = []
            context['invalid_page'] = True
            return ''
        if self.context_var is not None:
            context[self.context_var] = page_obj.object_list
        else:
            context[key] = page_obj.object_list
        context['paginator'] = paginator
        context['page_obj'] = page_obj
        return '' 

def render(self, context):
        key = self.queryset_var.var
        value = self.queryset_var.resolve(context)
        if isinstance(self.paginate_by, int):
            paginate_by = self.paginate_by
        else:
            paginate_by = self.paginate_by.resolve(context)
        paginator = Paginator(value, paginate_by, self.orphans)
        try:
            page_obj = paginator.page(context['request'].page)
        except InvalidPage:
            if INVALID_PAGE_RAISES_404:
                raise Http404('Invalid page requested.  If DEBUG were set to ' +
                    'False, an HTTP 404 page would have been shown instead.')
            context[key] = []
            context['invalid_page'] = True
            return ''
        if self.context_var is not None:
            context[self.context_var] = page_obj.object_list
        else:
            context[key] = page_obj.object_list
        context['paginator'] = paginator
        context['page_obj'] = page_obj
        return '' 

def render(self, context):
        key = self.queryset_var.var
        value = self.queryset_var.resolve(context)
        if isinstance(self.paginate_by, int):
            paginate_by = self.paginate_by
        else:
            paginate_by = self.paginate_by.resolve(context)
        paginator = Paginator(value, paginate_by, self.orphans)
        try:
            page_obj = paginator.page(context['request'].page)
        except InvalidPage:
            if INVALID_PAGE_RAISES_404:
                raise Http404('Invalid page requested.  If DEBUG were set to ' +
                    'False, an HTTP 404 page would have been shown instead.')
            context[key] = []
            context['invalid_page'] = True
            return ''
        if self.context_var is not None:
            context[self.context_var] = page_obj.object_list
        else:
            context[key] = page_obj.object_list
        context['paginator'] = paginator
        context['page_obj'] = page_obj
        return '' 

def paginate_queryset(self, queryset, page_size):
        """
        Paginate the queryset, if needed.
        """
        paginator = self.get_paginator(
            queryset, page_size, orphans=self.get_paginate_orphans(),
            allow_empty_first_page=self.get_allow_empty())
        page_kwarg = self.page_kwarg
        page = self.kwargs.get(page_kwarg) or self.request.GET.get(page_kwarg) or 1
        try:
            page_number = int(page)
        except ValueError:
            if page == 'last':
                page_number = paginator.num_pages
            else:
                raise Http404(_("Page is not 'last', nor can it be converted to an int."))
        try:
            page = paginator.page(page_number)
            return (paginator, page, page.object_list, page.has_other_pages())
        except InvalidPage as e:
            raise Http404(_('Invalid page (%(page_number)s): %(message)s') % {
                'page_number': page_number,
                'message': str(e)
            }) 

def page(self, number):
        """
        Returns a Page object for the given 1-based page number.

        Retrieves objects for the given page number plus 1 additional to check
        if there are more objects after this page.
        """
        number = self.validate_number(number)
        offset = (number - 1) * self.per_page
        limit = offset + self.per_page

        object_list = list(self.object_list[offset:limit])

        if not object_list and number != 1:
            raise InvalidPage("That page contains no results")

        return YTPage(object_list, number, self) 

def paginate(self):
        records = self.report.results
        self.paginator = self.report.get_paginator()
        result_count = self.paginator.count
        self.multi_page = result_count > self.report.get_list_per_page()
        self.can_show_all = result_count <= self.report.get_list_max_show_all()
        if not (self.show_all and self.can_show_all) and self.multi_page:
            try:
                records = self.paginator.page(self.page_num + 1).object_list
            except InvalidPage:
                raise IncorrectLookupParameters
        return records 

def make_result_list(self):
        # Get search parameters from the query string.
        self.list_queryset = self.get_list_queryset()
        self.ordering_field_columns = self.get_ordering_field_columns()
        self.paginator = self.get_paginator()

        # Get the number of objects, with admin filters applied.
        self.result_count = self.paginator.count

        self.can_show_all = self.result_count <= self.list_max_show_all
        self.multi_page = self.result_count > self.list_per_page

        # Get the list of objects to display on this page.
        if (self.show_all and self.can_show_all) or not self.multi_page:
            self.result_list = self.list_queryset._clone()
        else:
            try:
                self.result_list = self.paginator.page(
                    self.page_num + 1).object_list
            except InvalidPage:
                if ERROR_FLAG in self.request.GET.keys():
                    return SimpleTemplateResponse('xadmin/views/invalid_setup.html', {
                        'title': _('Database error'),
                    })
                return HttpResponseRedirect(self.request.path + '?' + ERROR_FLAG + '=1')
        self.has_more = self.result_count > (
            self.list_per_page * self.page_num + len(self.result_list)) 

def pages(post_objects, request):
    """
    page public function , return page's object tuple
    分页公用函数，返回分页的对象元组
    """
    paginator = Paginator(post_objects, 20)
    try:
        current_page = int(request.GET.get('page', '1'))
    except ValueError:
        current_page = 1

    page_range = page_list_return(len(paginator.page_range), current_page)

    try:
        page_objects = paginator.page(current_page)
    except (EmptyPage, InvalidPage):
        page_objects = paginator.page(paginator.num_pages)

    if current_page >= 5:
        show_first = 1
    else:
        show_first = 0

    if current_page <= (len(paginator.page_range) - 3):
        show_end = 1
    else:
        show_end = 0

    # 所有对象， 分页器， 本页对象， 所有页码， 本页页码，是否显示第一页，是否显示最后一页
    return post_objects, paginator, page_objects, page_range, current_page, show_first, show_end 

def get_context_data(self, request, *args, **kwargs):
        user = request.user
        all_count = self.get_base_queryset(request).count()
        queryset = self.get_queryset(request)
        result_count = queryset.count()
        has_add_permission = self.permission_helper.has_add_permission(user)
        paginator = Paginator(queryset, self.items_per_page)

        try:
            page_obj = paginator.page(self.page_num + 1)
        except InvalidPage:
            page_obj = paginator.page(1)

        context = {
            'view': self,
            'all_count': all_count,
            'result_count': result_count,
            'paginator': paginator,
            'page_obj': page_obj,
            'object_list': page_obj.object_list,
            'has_add_permission': has_add_permission,
        }

        if self.is_pagemodel:
            allowed_parent_types = self.model.allowed_parent_page_types()
            user = request.user
            valid_parents = self.permission_helper.get_valid_parent_pages(user)
            valid_parent_count = valid_parents.count()
            context.update({
                'no_valid_parents': not valid_parent_count,
                'required_parent_types': allowed_parent_types,
            })
        return context 

def get_results(self, request):
        paginator = self.model_admin.get_paginator(request, self.queryset, self.list_per_page)
        # Get the number of objects, with admin filters applied.
        result_count = paginator.count

        # Get the total number of objects, with no admin filters applied.
        if self.model_admin.show_full_result_count:
            full_result_count = self.root_queryset.count()
        else:
            full_result_count = None
        can_show_all = result_count <= self.list_max_show_all
        multi_page = result_count > self.list_per_page

        # Get the list of objects to display on this page.
        if (self.show_all and can_show_all) or not multi_page:
            result_list = self.queryset._clone()
        else:
            try:
                result_list = paginator.page(self.page_num + 1).object_list
            except InvalidPage:
                raise IncorrectLookupParameters

        self.result_count = result_count
        self.show_full_result_count = self.model_admin.show_full_result_count
        # Admin actions are shown if there is at least one entry
        # or if entries are not counted because show_full_result_count is disabled
        self.show_admin_actions = not self.show_full_result_count or bool(full_result_count)
        self.full_result_count = full_result_count
        self.result_list = result_list
        self.can_show_all = can_show_all
        self.multi_page = multi_page
        self.paginator = paginator 

def get_context_data(self, **kwargs):
        """Extend the context data with the paginator."""
        context = super(SubscriptionDetailView, self).get_context_data(
            **kwargs)

        paginate_by = self.kwargs.get('by') or self.request.GET.get('by')
        try:
            paginate_by = int(paginate_by)
        except (ValueError, TypeError):
            paginate_by = self.paginate_by

        paginator = Paginator(
            self.object.issues(),
            paginate_by,
            orphans=0,
            allow_empty_first_page=True
        )

        page = self.kwargs.get('page') or self.request.GET.get('page')
        if not page:
            page = self.get_last_page()
        try:
            page_number = int(page)
        except ValueError:
            if page == 'last':
                page_number = paginator.num_pages
            else:
                msg = "Page is not 'last', nor can it be converted to an int."
                raise Http404(msg)

        try:
            page = paginator.page(page_number)
        except InvalidPage as e:
            raise Http404('Invalid page (%s): %s' % (page_number, str(e)))

        context.update({
            'paginator': paginator,
            'page_obj': page,
            'object_list': page.object_list
        })
        return context 

def make_result_list(self):
        # Get search parameters from the query string.
        self.base_queryset = self.queryset()
        self.list_queryset = self.get_list_queryset()
        self.ordering_field_columns = self.get_ordering_field_columns()
        self.paginator = self.get_paginator()

        # Get the number of objects, with admin filters applied.
        self.result_count = self.paginator.count

        self.can_show_all = self.result_count <= self.list_max_show_all
        self.multi_page = self.result_count > self.list_per_page

        # Get the list of objects to display on this page.
        if (self.show_all and self.can_show_all) or not self.multi_page:
            self.result_list = self.list_queryset._clone()
        else:
            try:
                self.result_list = self.paginator.page(
                    self.page_num + 1).object_list
            except InvalidPage:
                if ERROR_FLAG in self.request.GET.keys():
                    return SimpleTemplateResponse('xadmin/views/invalid_setup.html', {
                        'title': _('Database error'),
                    })
                return HttpResponseRedirect(self.request.path + '?' + ERROR_FLAG + '=1')
        self.has_more = self.result_count > (
            self.list_per_page * self.page_num + len(self.result_list)) 

def get_page(request, post_list):
    paginator = Paginator(post_list, 10)
    page = request.GET.get('page', 1)
    try:
        post_list = paginator.page(page)
    except(EmptyPage, InvalidPage, PageNotAnInteger):
        post_list = paginator.page(1)
    return post_list


# 获得全局变量 

def make_result_list(self):
        # Get search parameters from the query string.
        self.base_queryset = self.queryset()
        self.list_queryset = self.get_list_queryset()
        self.ordering_field_columns = self.get_ordering_field_columns()
        self.paginator = self.get_paginator()

        # Get the number of objects, with admin filters applied.
        self.result_count = self.paginator.count

        # Get the total number of objects, with no admin filters applied.
        # Perform a slight optimization: Check to see whether any filters were
        # given. If not, use paginator.hits to calculate the number of objects,
        # because we've already done paginator.hits and the value is cached.
        if not self.list_queryset.query.where:
            self.full_result_count = self.result_count
        else:
            self.full_result_count = self.base_queryset.count()

        self.can_show_all = self.result_count <= self.list_max_show_all
        self.multi_page = self.result_count > self.list_per_page

        # Get the list of objects to display on this page.
        if (self.show_all and self.can_show_all) or not self.multi_page:
            self.result_list = self.list_queryset._clone()
        else:
            try:
                self.result_list = self.paginator.page(
                    self.page_num + 1).object_list
            except InvalidPage:
                if ERROR_FLAG in self.request.GET.keys():
                    return SimpleTemplateResponse('xadmin/views/invalid_setup.html', {
                        'title': _('Database error'),
                    })
                return HttpResponseRedirect(self.request.path + '?' + ERROR_FLAG + '=1')
        self.has_more = self.result_count > (
            self.list_per_page * self.page_num + len(self.result_list)) 

def pages(post_objects, request):
    """
    page public function , return page's object tuple
    分页公用函数，返回分页的对象元组
    """

    page_len = request.GET.get('page_len', '')
    if not page_len:
        page_len = 10
    paginator = Paginator(post_objects, page_len)
    try:
        current_page = int(request.GET.get('page', '1'))
    except ValueError:
        current_page = 1

    page_range = page_list_return(len(paginator.page_range), current_page)
    end_page = len(paginator.page_range)

    try:
        page_objects = paginator.page(current_page)
    except (EmptyPage, InvalidPage):
        page_objects = paginator.page(paginator.num_pages)

    # if current_page >= 5:
    #     show_first = 1
    # else:
    show_first = 0
    #
    # if current_page <= (len(paginator.page_range) - 3):
    #     show_end = 1
    # else:
    show_end = 0

    # 所有对象， 分页器， 本页对象， 所有页码， 本页页码，是否显示第一页，是否显示最后一页
    return post_objects, paginator, page_objects, page_range, current_page, show_first, show_end, end_page 

def make_result_list(self):
        # Get search parameters from the query string.
        self.base_queryset = self.queryset()
        self.list_queryset = self.get_list_queryset()
        self.ordering_field_columns = self.get_ordering_field_columns()
        self.paginator = self.get_paginator()

        # Get the number of objects, with admin filters applied.
        self.result_count = self.paginator.count

        self.can_show_all = self.result_count <= self.list_max_show_all
        self.multi_page = self.result_count > self.list_per_page

        # Get the list of objects to display on this page.
        if (self.show_all and self.can_show_all) or not self.multi_page:
            self.result_list = self.list_queryset._clone()
        else:
            try:
                self.result_list = self.paginator.page(
                    self.page_num + 1).object_list
            except InvalidPage:
                if ERROR_FLAG in self.request.GET.keys():
                    return SimpleTemplateResponse('xadmin/views/invalid_setup.html', {
                        'title': _('Database error'),
                    })
                return HttpResponseRedirect(self.request.path + '?' + ERROR_FLAG + '=1')
        self.has_more = self.result_count > (
            self.list_per_page * self.page_num + len(self.result_list)) 

def get_page(self, page):
        try:
            self._page = self.page(page)
        except InvalidPage:
            raise NotFound(self.invalid_page_message)
        else:
            return self._page