imacat/mia-accounting-django
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Changed the links attribute of Pagination to a pseudo attribute that is calculated on request.

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This commit is contained in:
依瑪貓 2020-07-07 22:49:37 +08:00
parent 19ac9d3200
commit e9509c9bac
2 changed files with 89 additions and 83 deletions
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3
accounting/views.py
View File

@ -201,5 +201,6 @@ ORDER BY
self.kwargs["subject_code"] + "%",
self.kwargs["subject_code"] + "%"])
self.pagination = Pagination(
self.request, records, self.page_no, self.page_size, True)
self.request.get_full_path(), records,
self.page_no, self.page_size, True)
return self.pagination.records

35
mia_core/utils.py
View File

@ -159,6 +159,7 @@ class Pagination:
of range or is redundant.
Attributes:
current_url (bool): The current request URL
is_reversed (bool): Whether we should display the last
page first
page_size (int): The page size.
@ -169,18 +170,19 @@ class Pagination:
links (list[Link]): The navigation links in the pagination
bar.
"""
current_url = None
is_reversed = False
page_size = None
total_pages = None
is_paged = None
page_no = None
records = None
links = None
DEFAULT_PAGE_SIZE = 10
def __init__(self, request, records, page_no,
def __init__(self, current_url, records, page_no,
page_size, is_reversed=False):
self.current_url = current_url
self.is_reversed = is_reversed
self.page_size = page_size \
if page_size is not None \
@ -191,7 +193,7 @@ class Pagination:
if not self.is_paged:
self.page_no = 1
self.records = records
self.links = []
self._links = []
return
default_page = 1 if not is_reversed else self.total_pages
if page_no == default_page:
@ -203,17 +205,19 @@ class Pagination:
raise PageNoOutOfRangeException()
start_no = self.page_size * (self.page_no - 1)
self.records = records[start_no:start_no + self.page_size]
self.create_pagination_bar(request)
def create_pagination_bar(self, request):
_links = None
@property
def links(self):
"""Creates the pagination bar.
Args:
request (HttpRequest): The request
"""
base_url = UrlBuilder(
request.get_full_path()).del_param("page")
self.links = []
if self._links is None:
base_url = UrlBuilder(self.current_url).del_param("page")
self._links = []
# The previous page
link = self.Link()
link.title = pgettext("Pagination|", "Previous")
@ -228,7 +232,7 @@ class Pagination:
link.url = str(base_url.clone().add_param(
"page", str(self.page_no - 1)))
link.is_small_screen = True
self.links.append(link)
self._links.append(link)
# The first page
link = self.Link()
link.title = "1"
@ -238,7 +242,7 @@ class Pagination:
link.url = str(base_url.clone().add_param("page", "1"))
if self.page_no == 1:
link.is_active = True
self.links.append(link)
self._links.append(link)
# The previous ellipsis
if self.page_no > 4:
link = self.Link()
@ -248,7 +252,7 @@ class Pagination:
link.title = "2"
link.url = str(base_url.clone().add_param(
"page", "2"))
self.links.append(link)
self._links.append(link)
# The nearby pages
for no in range(self.page_no - 2, self.page_no + 3):
if no <= 1 or no >= self.total_pages:
@ -259,7 +263,7 @@ class Pagination:
"page", str(no)))
if no == self.page_no:
link.is_active = True
self.links.append(link)
self._links.append(link)
# The next ellipsis
if self.page_no + 3 < self.total_pages:
link = self.Link()
@ -269,7 +273,7 @@ class Pagination:
link.title = str(self.total_pages - 1)
link.url = str(base_url.clone().add_param(
"page", str(self.total_pages - 1)))
self.links.append(link)
self._links.append(link)
# The last page
link = self.Link()
link.title = str(self.total_pages)
@ -280,7 +284,7 @@ class Pagination:
"page", str(self.total_pages)))
if self.page_no == self.total_pages:
link.is_active = True
self.links.append(link)
self._links.append(link)
# The next page
link = self.Link()
link.title = pgettext("Pagination|", "Next")
@ -295,7 +299,8 @@ class Pagination:
link.url = str(base_url.clone().add_param(
"page", str(self.page_no + 1)))
link.is_small_screen = True
self.links.append(link)
self._links.append(link)
return self._links
class Link:
"""A navigation link in the pagination bar.