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views.py
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views.py
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import csv
import datetime
from collections import defaultdict
from django.http import HttpResponse
from django.contrib.auth.mixins import LoginRequiredMixin
from django.contrib import messages
from django.urls import reverse
from django.http.request import QueryDict
from django.db import models
from django.views.generic import DetailView, ListView, RedirectView
import django_tables2 as tables
from django_tables2.utils import A
from core.views import OfficerMixin, NatOfficerRequiredMixin, RequestConfig
from core.models import combine_annotations
from .models import Region
from tasks.models import TaskDate
from chapters.models import Chapter
from .tables import RegionChapterTaskTable
from .filters import RegionChapterTaskFilter
from .forms import RegionChapterTaskFormHelper
from users.tables import UserTable
from users.models import User
from users.filters import UserRoleListFilter
from users.forms import UserRoleListFormHelper
class RegionOfficerView(NatOfficerRequiredMixin,
LoginRequiredMixin, OfficerMixin, DetailView):
model = Region
slug_field = 'slug'
slug_url_kwarg = 'slug'
filter_class = UserRoleListFilter
formhelper_class = UserRoleListFormHelper
template_name = "regions/officer_list.html"
def get(self, request, *args, **kwargs):
if kwargs['slug'] == 'national':
self.object = Region.objects.all()
else:
self.object = [self.get_object()]
context = self.get_context_data(object=self.object)
if request.GET.get('csv', 'False').lower() == 'download csv':
response = HttpResponse(content_type='text/csv')
time_name = datetime.datetime.now().strftime("%Y%m%d_%H%M%S")
filename = f"ThetaTauOfficerExport_{time_name}.csv"
response['Content-Disposition'] = f'attachment; filename="{filename}"'
writer = csv.writer(response)
emails = context['email_list']
if emails != "":
writer.writerow(context['table'].columns.names())
for row in context['table'].as_values():
if row[2] in emails:
writer.writerow(row)
return response
else:
messages.add_message(
self.request, messages.ERROR,
f"All officers are filtered! Clear or change filter.")
return self.render_to_response(context)
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
all_chapter_officers = User.objects.none()
chapters = Chapter.objects.filter(region__in=self.object).all()
for chapter in chapters:
context = super().get_context_data(**kwargs)
chapter_officers, _ = chapter.get_current_officers(combine=False)
all_chapter_officers = chapter_officers | all_chapter_officers
cancel = self.request.GET.get('cancel', False)
request_get = self.request.GET.copy()
if cancel:
request_get = QueryDict()
if not request_get:
####### WARNING: this is a hack to enable initial filter field selection in django-filters########
# Create a mutable QueryDict object, default is immutable
request_get = QueryDict(mutable=True)
request_get.setlist("role", ['corresponding secretary', 'regent', 'scribe', 'treasurer', 'vice regent'])
self.filter = self.filter_class(request_get,
queryset=all_chapter_officers)
self.filter.form.helper = self.formhelper_class()
email_list = ', '.join([x[0] for x in self.filter.qs.values_list('email').distinct()])
all_chapter_officers = combine_annotations(self.filter.qs)
self.filter.form.base_fields['chapter'].queryset = chapters
table = UserTable(
data=all_chapter_officers,
extra_columns=[('chapter',
tables.LinkColumn(
'chapters:detail',
args=[A('chapter.slug')]))])
RequestConfig(self.request, paginate={'per_page': 50}).configure(table)
context['table'] = table
context['filter'] = self.filter
context['email_list'] = email_list
return context
class RegionDetailView(NatOfficerRequiredMixin,
LoginRequiredMixin, OfficerMixin, DetailView):
model = Region
slug_field = 'slug'
slug_url_kwarg = 'slug'
class RegionTaskView(NatOfficerRequiredMixin,
LoginRequiredMixin, OfficerMixin, DetailView):
model = Region
slug_field = 'slug'
slug_url_kwarg = 'slug'
filter_class = RegionChapterTaskFilter
formhelper_class = RegionChapterTaskFormHelper
template_name = "regions/task_list.html"
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
qs = TaskDate.objects.all()
cancel = self.request.GET.get('cancel', False)
request_get = self.request.GET.copy()
if cancel:
request_get = QueryDict()
self.filter = self.filter_class(request_get, queryset=qs)
self.filter.form.helper = self.formhelper_class()
all_chapters_tasks = {task.pk: defaultdict(lambda: 0) for task in self.filter.qs}
[all_chapters_tasks[task.id].update(
{'task_name': task.task.name,
'task_owner': task.task.owner,
'school_type': task.school_type,
'date': task.date})
for task in self.filter.qs]
extra_columns = []
for chapter in self.object.chapters.all():
qs = TaskDate.dates_for_chapter(chapter)
chapter_name = chapter.name.replace(' ', '_')
column_name = f'{chapter_name}_column'
column_link = f'{chapter_name}_complete_link'
column_result = f'{chapter_name}_complete_result'
qs = qs.annotate(
**{column_name: models.Case(
models.When(
models.Q(chapters__chapter=chapter),
models.Value(chapter.name)
),
default=models.Value(chapter.name),
output_field=models.CharField()
)}
).annotate(
**{column_link: models.Case(
models.When(
models.Q(chapters__chapter=chapter),
models.F('chapters__pk')
),
default=models.Value(0),
)}
).annotate(
**{column_result: models.Case(
models.When(
models.Q(chapters__chapter=chapter),
models.Value('True')
),
default=models.Value(''),
output_field=models.CharField()
)}
)
qs = qs.distinct()
# Distinct sees incomplete/complete as different, so need to combine
complete = qs.filter(**{column_result: True})
incomplete = qs.filter(~models.Q(pk__in=complete), **{column_result: ""})
all_tasks = complete | incomplete
chapter_task_dict = all_tasks.values(
'pk', column_name, column_link, column_result)
[all_chapters_tasks[chapter_task['id']].update(chapter_task)
for chapter_task in chapter_task_dict.values() if chapter_task['id'] in all_chapters_tasks]
extra_columns.append(
(column_result,
tables.LinkColumn(
'tasks:detail',
verbose_name=chapter_name.replace('_', ' '),
args=[A(column_link)],
empty_values=())))
all_chapters_tasks = all_chapters_tasks.values()
table = RegionChapterTaskTable(
data=all_chapters_tasks,
extra_columns=extra_columns)
context['table'] = table
context['filter'] = self.filter
return context
class RegionRedirectView(LoginRequiredMixin, RedirectView):
permanent = False
def get_redirect_url(self):
return reverse('users:detail',
kwargs={'username': self.request.user.username})
class RegionListView(LoginRequiredMixin, OfficerMixin, ListView):
model = Region
# These next two lines tell the view to index lookups by username
slug_field = 'slug'
slug_url_kwarg = 'slug'