Changed the links attribute of Pagination to a pseudo attribute that is calculated on request.
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@ -201,5 +201,6 @@ ORDER BY
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self.kwargs["subject_code"] + "%",
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self.kwargs["subject_code"] + "%"])
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self.pagination = Pagination(
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self.request, records, self.page_no, self.page_size, True)
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self.request.get_full_path(), records,
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self.page_no, self.page_size, True)
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return self.pagination.records
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@ -159,6 +159,7 @@ class Pagination:
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of range or is redundant.
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Attributes:
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current_url (bool): The current request URL
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is_reversed (bool): Whether we should display the last
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page first
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page_size (int): The page size.
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@ -169,18 +170,19 @@ class Pagination:
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links (list[Link]): The navigation links in the pagination
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bar.
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"""
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current_url = None
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is_reversed = False
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page_size = None
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total_pages = None
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is_paged = None
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page_no = None
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records = None
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links = None
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DEFAULT_PAGE_SIZE = 10
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def __init__(self, request, records, page_no,
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def __init__(self, current_url, records, page_no,
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page_size, is_reversed=False):
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self.current_url = current_url
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self.is_reversed = is_reversed
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self.page_size = page_size \
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if page_size is not None \
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@ -191,7 +193,7 @@ class Pagination:
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if not self.is_paged:
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self.page_no = 1
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self.records = records
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self.links = []
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self._links = []
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return
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default_page = 1 if not is_reversed else self.total_pages
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if page_no == default_page:
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@ -203,99 +205,102 @@ class Pagination:
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raise PageNoOutOfRangeException()
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start_no = self.page_size * (self.page_no - 1)
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self.records = records[start_no:start_no + self.page_size]
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self.create_pagination_bar(request)
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def create_pagination_bar(self, request):
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_links = None
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@property
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def links(self):
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"""Creates the pagination bar.
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Args:
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request (HttpRequest): The request
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"""
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base_url = UrlBuilder(
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request.get_full_path()).del_param("page")
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self.links = []
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# The previous page
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link = self.Link()
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link.title = pgettext("Pagination|", "Previous")
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if self.page_no > 1:
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if self.page_no - 1 == 1:
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if not self.is_reversed:
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link.url = str(base_url)
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if self._links is None:
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base_url = UrlBuilder(self.current_url).del_param("page")
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self._links = []
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# The previous page
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link = self.Link()
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link.title = pgettext("Pagination|", "Previous")
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if self.page_no > 1:
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if self.page_no - 1 == 1:
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if not self.is_reversed:
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link.url = str(base_url)
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else:
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link.url = str(base_url.clone().add_param(
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"page", "1"))
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else:
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link.url = str(base_url.clone().add_param(
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"page", "1"))
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else:
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link.url = str(base_url.clone().add_param(
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"page", str(self.page_no - 1)))
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link.is_small_screen = True
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self.links.append(link)
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# The first page
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link = self.Link()
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link.title = "1"
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if not self.is_reversed:
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link.url = str(base_url)
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else:
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link.url = str(base_url.clone().add_param("page", "1"))
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if self.page_no == 1:
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link.is_active = True
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self.links.append(link)
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# The previous ellipsis
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if self.page_no > 4:
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"page", str(self.page_no - 1)))
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link.is_small_screen = True
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self._links.append(link)
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# The first page
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link = self.Link()
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if self.page_no > 5:
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link.title = pgettext("Pagination|", "...")
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link.title = "1"
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if not self.is_reversed:
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link.url = str(base_url)
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else:
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link.title = "2"
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link.url = str(base_url.clone().add_param(
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"page", "2"))
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self.links.append(link)
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# The nearby pages
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for no in range(self.page_no - 2, self.page_no + 3):
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if no <= 1 or no >= self.total_pages:
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continue
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link = self.Link()
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link.title = str(no)
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link.url = str(base_url.clone().add_param(
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"page", str(no)))
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if no == self.page_no:
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link.url = str(base_url.clone().add_param("page", "1"))
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if self.page_no == 1:
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link.is_active = True
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self.links.append(link)
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# The next ellipsis
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if self.page_no + 3 < self.total_pages:
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link = self.Link()
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if self.page_no + 4 < self.total_pages:
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link.title = pgettext("Pagination|", "...")
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else:
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link.title = str(self.total_pages - 1)
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self._links.append(link)
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# The previous ellipsis
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if self.page_no > 4:
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link = self.Link()
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if self.page_no > 5:
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link.title = pgettext("Pagination|", "...")
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else:
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link.title = "2"
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link.url = str(base_url.clone().add_param(
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"page", "2"))
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self._links.append(link)
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# The nearby pages
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for no in range(self.page_no - 2, self.page_no + 3):
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if no <= 1 or no >= self.total_pages:
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continue
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link = self.Link()
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link.title = str(no)
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link.url = str(base_url.clone().add_param(
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"page", str(self.total_pages - 1)))
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self.links.append(link)
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# The last page
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link = self.Link()
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link.title = str(self.total_pages)
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if self.is_reversed:
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link.url = str(base_url)
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else:
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link.url = str(base_url.clone().add_param(
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"page", str(self.total_pages)))
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if self.page_no == self.total_pages:
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link.is_active = True
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self.links.append(link)
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# The next page
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link = self.Link()
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link.title = pgettext("Pagination|", "Next")
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if self.page_no < self.total_pages:
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if self.page_no + 1 == self.total_pages:
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if self.is_reversed:
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link.url = str(base_url)
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"page", str(no)))
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if no == self.page_no:
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link.is_active = True
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self._links.append(link)
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# The next ellipsis
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if self.page_no + 3 < self.total_pages:
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link = self.Link()
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if self.page_no + 4 < self.total_pages:
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link.title = pgettext("Pagination|", "...")
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else:
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link.title = str(self.total_pages - 1)
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link.url = str(base_url.clone().add_param(
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"page", str(self.total_pages - 1)))
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self._links.append(link)
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# The last page
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link = self.Link()
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link.title = str(self.total_pages)
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if self.is_reversed:
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link.url = str(base_url)
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else:
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link.url = str(base_url.clone().add_param(
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"page", str(self.total_pages)))
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if self.page_no == self.total_pages:
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link.is_active = True
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self._links.append(link)
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# The next page
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link = self.Link()
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link.title = pgettext("Pagination|", "Next")
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if self.page_no < self.total_pages:
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if self.page_no + 1 == self.total_pages:
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if self.is_reversed:
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link.url = str(base_url)
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else:
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link.url = str(base_url.clone().add_param(
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"page", str(self.total_pages)))
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else:
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link.url = str(base_url.clone().add_param(
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"page", str(self.total_pages)))
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else:
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link.url = str(base_url.clone().add_param(
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"page", str(self.page_no + 1)))
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link.is_small_screen = True
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self.links.append(link)
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"page", str(self.page_no + 1)))
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link.is_small_screen = True
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self._links.append(link)
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return self._links
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class Link:
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"""A navigation link in the pagination bar.
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