Replaced the CashReportView list view with the cash view function, to simplify. Moved the pagination query parameter parser from the view to Pagination.
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2f53bcfd43
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@ -43,7 +43,7 @@ urlpatterns = [
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path("", views.home, name="home"),
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path("cash", views.cash_home, name="cash.home"),
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path("cash/<str:subject_code>/<str:period_spec>",
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views.CashReportView.as_view(), name="cash"),
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views.cash, name="cash"),
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path("cash-summary",
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mia_core_views.todo, name="cash-summary.home"),
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path("cash-summary/<str:subject_code>",
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@ -18,24 +18,20 @@
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"""The view controllers of the accounting application.
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"""
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from datetime import date
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from django.http import HttpResponseRedirect, HttpResponse
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from django.http import HttpResponseRedirect
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from django.shortcuts import render
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from django.urls import reverse
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from django.utils import dateformat
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from django.utils.decorators import method_decorator
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from django.utils.timezone import localdate
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from django.utils.translation import get_language, pgettext
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from django.views import generic
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from django.views.decorators.http import require_GET
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from accounting.models import Record, Transaction, Subject
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from mia_core.period import Period
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from mia import settings
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from mia_core.digest_auth import digest_login_required
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from mia_core.utils import UrlBuilder, Pagination, \
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PageNoOutOfRangeException
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from mia_core.period import Period
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from mia_core.utils import Pagination
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@require_GET
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@ -65,99 +61,22 @@ def cash_home(request):
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reverse("accounting:cash", args=(subject_code, period_spec)))
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@method_decorator(digest_login_required, name='dispatch')
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class BaseReportView(generic.ListView):
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"""A base account report.
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Attributes:
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page_no (int): The specified page number
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page_size (int): The specified page size
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period (Period): The template period helper
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subject (Subject): The currently-specified subject
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"""
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page_no = None
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page_size = None
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pagination = None
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period = None
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subject = None
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def get(self, request, *args, **kwargs):
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"""Adds object_list to the context.
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Args:
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request (HttpRequest): The request.
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args (list): The remaining arguments.
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kwargs (dict): The keyword arguments.
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Returns:
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The response
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"""
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if request.user.is_anonymous:
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return HttpResponse(status=401)
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try:
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self.page_size = int(request.GET["page-size"])
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if self.page_size < 1:
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return HttpResponseRedirect(
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str(UrlBuilder(request.get_full_path())
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.del_param("page-size")))
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except KeyError:
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self.page_size = None
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except ValueError:
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return HttpResponseRedirect(
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str(UrlBuilder(request.get_full_path())
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.del_param("page-size")))
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try:
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self.page_no = int(request.GET["page"])
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if self.page_no < 1:
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return HttpResponseRedirect(
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str(UrlBuilder(request.get_full_path())
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.del_param("page")))
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except KeyError:
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self.page_no = None
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except ValueError:
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return HttpResponseRedirect(
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str(UrlBuilder(request.get_full_path())
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.del_param("page")))
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try:
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r = super(BaseReportView, self) \
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.get(request, *args, **kwargs)
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except PageNoOutOfRangeException:
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return HttpResponseRedirect(
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str(UrlBuilder(request.get_full_path())
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.del_param("page")))
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return r
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def get_context_data(self, **kwargs):
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data = super(BaseReportView, self).get_context_data(**kwargs)
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data["period"] = self.period
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data["subject"] = self.subject
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data["pagination"] = self.pagination
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return data
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class CashReportView(BaseReportView):
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"""The accounting cash report."""
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http_method_names = ["get"]
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template_name = "accounting/cash.html"
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context_object_name = "records"
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def get_queryset(self):
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"""Return the accounting records for the cash report.
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Returns:
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List[Record]: The accounting records for the cash report
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"""
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@require_GET
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@digest_login_required
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def cash(request, subject_code, period_spec):
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"""The cash account report."""
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first_txn = Transaction.objects.order_by("date").first()
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data_start = first_txn.date if first_txn is not None else None
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last_txn = Transaction.objects.order_by("-date").first()
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data_end = last_txn.date if last_txn is not None else None
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self.period = Period(
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period = Period(
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get_language(), data_start, data_end,
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self.kwargs["period_spec"])
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if self.kwargs["subject_code"] == "0":
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self.subject = Subject(code="0")
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self.subject.title_zhtw = pgettext(
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"Accounting|", "Current assets and liabilities")
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period_spec)
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# The list data
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if subject_code == "0":
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subject = Subject(code="0")
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subject.title_zhtw = pgettext(
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"Accounting|", "Current Assets And Liabilities")
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records = Record.objects.raw(
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"""SELECT r.*
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FROM accounting_records AS r
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@ -188,10 +107,9 @@ ORDER BY
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t.ord,
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CASE WHEN is_credit THEN 1 ELSE 2 END,
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r.ord""",
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[self.period.start, self.period.end])
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[period.start, period.end])
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else:
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self.subject = Subject.objects.filter(
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code=self.kwargs["subject_code"]).first()
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subject = Subject.objects.filter(code=subject_code).first()
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records = Record.objects.raw(
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"""SELECT r.*
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FROM accounting_records AS r
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@ -216,11 +134,14 @@ ORDER BY
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t.ord,
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CASE WHEN is_credit THEN 1 ELSE 2 END,
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r.ord""",
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[self.period.start,
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self.period.end,
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self.subject.code + "%",
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self.subject.code + "%"])
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self.pagination = Pagination(
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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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[period.start,
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period.end,
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subject.code + "%",
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subject.code + "%"])
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pagination = Pagination(request, records, True)
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return render(request, "accounting/cash.html", {
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"records": pagination.records,
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"pagination": pagination,
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"subject": subject,
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"period": period,
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})
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@ -46,10 +46,10 @@ class UrlBuilder:
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return
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self.base_path = start_url[:pos]
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self.params = []
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for piece in start_url[pos+1:].split("&"):
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for piece in start_url[pos + 1:].split("&"):
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pos = piece.find("=")
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name = urllib.parse.unquote(piece[:pos])
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value = urllib.parse.unquote(piece[pos+1:])
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value = urllib.parse.unquote(piece[pos + 1:])
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self.params.append(self.Param(name, value))
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def add_param(self, name, value):
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@ -143,14 +143,11 @@ class UrlBuilder:
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urllib.parse.quote(self.value))
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DEFAULT_PAGE_SIZE = 10
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class Pagination:
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"""The pagination.
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Args:
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current_url (str): The current URL
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request (HttpRequest): The request
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records (list[Model]): All the records
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page_no (int): The specified page number
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page_size (int): The specified number of records per page
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@ -158,8 +155,7 @@ class Pagination:
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page first
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Raises:
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PageNoOutOfRangeError: if the specified page number is out
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of range or is redundant.
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PaginationException: With invalid pagination parameters
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Attributes:
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is_reversed (bool): Whether we should display the last
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@ -182,30 +178,57 @@ class Pagination:
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page_no = None
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records = None
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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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DEFAULT_PAGE_SIZE = 10
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def __init__(self, request, records, is_reversed=False):
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current_url = request.get_full_path()
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self._current_url = current_url
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self._base_url = UrlBuilder(current_url).del_param("page")
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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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else DEFAULT_PAGE_SIZE
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# The page size
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try:
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self.page_size = int(request.GET["page-size"])
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if self.page_size == self.DEFAULT_PAGE_SIZE:
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raise PaginationException(str(
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UrlBuilder(current_url).del_param("page-size")))
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if self.page_size < 1:
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raise PaginationException(str(
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UrlBuilder(current_url).del_param("page-size")))
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except KeyError:
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self.page_size = self.DEFAULT_PAGE_SIZE
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except ValueError:
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raise PaginationException(str(
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UrlBuilder(current_url).del_param("page-size")))
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self.total_pages = int(
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(len(records) - 1) / self.page_size) + 1
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default_page_no = 1 if not is_reversed else self.total_pages
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self.is_paged = self.total_pages > 1
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# The page number
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try:
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self.page_no = int(request.GET["page"])
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if not self.is_paged:
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raise PaginationException(str(
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UrlBuilder(current_url).del_param("page")))
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if self.page_no == default_page_no:
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raise PaginationException(str(
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UrlBuilder(current_url).del_param("page")))
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if self.page_no < 1:
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raise PaginationException(str(
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UrlBuilder(current_url).del_param("page")))
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if self.page_no > self.total_pages:
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raise PaginationException(str(
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UrlBuilder(current_url).del_param("page")))
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except KeyError:
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self.page_no = default_page_no
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except ValueError:
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raise PaginationException(str(
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UrlBuilder(current_url).del_param("page")))
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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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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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raise PageNoOutOfRangeException()
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self.page_no = page_no \
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if page_no is not None \
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else default_page
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if self.page_no > self.total_pages:
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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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@ -321,9 +344,24 @@ class Pagination:
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def page_size_options(self):
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base_url = UrlBuilder(self._current_url).del_param(
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"page").del_param("page-size")
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return [self.PageSizeOption(x, _page_size_url(base_url, x))
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return [self.PageSizeOption(x, self._page_size_url(base_url, x))
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for x in [10, 100, 200]]
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@staticmethod
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def _page_size_url(base_url, size):
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"""Returns the URL for a new page size.
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Args:
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base_url (UrlBuilder): The base URL builder.
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size (int): The new page size.
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Returns:
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str: The URL for the new page size.
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"""
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if size == Pagination.DEFAULT_PAGE_SIZE:
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return str(base_url)
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return str(base_url.clone().add_param("page-size", str(size)))
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class PageSizeOption:
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"""A page size option.
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@ -343,23 +381,16 @@ class Pagination:
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self.url = url
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def _page_size_url(base_url, size):
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"""Returns the URL for a new page size.
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class PaginationException(Exception):
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"""The exception thrown with invalid pagination parameters.
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Args:
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base_url (UrlBuilder): The base URL builder.
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size (int): The new page size.
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url (str): The canonical URL to redirect to.
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Returns:
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str: The URL for the new page size.
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Attributes:
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url (str): The canonical URL to redirect to.
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"""
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if size == DEFAULT_PAGE_SIZE:
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return str(base_url)
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return str(base_url.clone().add_param("page-size", str(size)))
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url = None
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class PageNoOutOfRangeException(Exception):
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"""The error thrown when the specified page number is out of
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range.
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"""
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pass
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def __init__(self, url):
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self.url = url
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