result and attendance charts api for future pdf reports (b42a7e98) · Commits · Samorząd Uczniowski / Wybory

.gitignore

+1 −0

Changes for .gitignore: 1 added line, 0 removed lines.
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		@@ -4,3 +4,4 @@ db.sqlite3
		.vscode
		.env
		deployment
		.DS_Store

pyproject.toml

+4 −0

Changes for pyproject.toml: 4 added lines, 0 removed lines.
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		@@ -10,6 +10,7 @@ dependencies = [
		"django-rq~=4.0.1",
		"django-tasks-rq~=0.12.0",
		"gunicorn~=25.2.0",
		"matplotlib>=3.10.8",
		"psycopg[binary]~=3.3.3",
		"tzdata~=2025.3",
		]
		@@ -18,3 +19,6 @@ dependencies = [
		dev = [
		"honcho~=2.0.0",
		]

		[tool.uv.sources]
		django-admin-autocomplete = { git = "https://github.com/drorsoft/django_charfield_autocomplete" }

stats/admin.py

+68 −3

Changes for stats/admin.py: 68 added lines, 3 removed lines.
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		from django.contrib import admin, messages
		from django.shortcuts import render, get_object_or_404
		from django.db.models import Count, Q
		from django.contrib.admin.views.decorators import staff_member_required
		from django.urls import reverse
		from django.utils.html import format_html
		from django.utils.safestring import mark_safe
		from django.urls import path
		from django.http import HttpResponseRedirect
		from django.http import HttpResponseRedirect, HttpResponse

		import matplotlib
		matplotlib.use('Agg')

		import matplotlib.pyplot as plt
		import io

		from elections.models import Election
		from vote.models import Participation
		@@ -43,7 +48,9 @@ class ElectionStatsAdmin(admin.ModelAdmin):
		urls = super().get_urls()
		custom_urls = [
		path('live-results/<int:election_id>', self.admin_site.admin_view(self.live_results_view), name='live_results'),
		path('statistics/<int:election_id>', self.admin_site.admin_view(self.statistics_view), name='statistics')
		path('statistics/<int:election_id>', self.admin_site.admin_view(self.statistics_view), name='statistics'),
		path('chartapi/results/<int:election_id>', self.admin_site.admin_view(self.results_chart_view), name='results_chart'),
		path('chartapi/attendance/<int:election_id>', self.admin_site.admin_view(self.attendance_chart_view), name='attendance_chart')
		]

		return custom_urls + urls
		@@ -124,6 +131,64 @@ class ElectionStatsAdmin(admin.ModelAdmin):

		return render(request, 'admin/statistics.html', context)

		def results_chart_view(self, request, election_id):
		election = get_object_or_404(Election, pk=election_id)

		labels = list(election.option_set.values_list('name', flat=True))
		values = list(election.option_set.values_list('votes', flat=True))

		if election.allow_invalid:
		labels.append('GŁOS NIEWAŻNY')
		values.append(election.invalid_votes)

		total = sum(values)
		value_iterator = iter(values)

		fig, ax = plt.subplots()
		ax.set_title('Wyniki głosowania')

		def display_value(p):
		value = next(value_iterator)
		return f'{round(100*value/total, 1)}% ({value})'

		ax.pie(values, labels=labels, autopct=lambda p:display_value(p))

		buffer = io.BytesIO()
		plt.savefig(buffer, format='svg')
		plt.close(fig)
		buffer.seek(0)

		return HttpResponse(buffer.read(), 'image/svg+xml')

		def attendance_chart_view(self, request, election_id):
		election = get_object_or_404(Election, pk=election_id)

		if election.is_active:
		return HttpResponse('Niedostępne dla trwających głosowań')

		groups = Group.objects.annotate(
		total_voters = Count('voter', distinct=True),
		voted_count = Count('voter__participation', filter=Q(voter__participation__election=election), distinct=True)
		)

		labels = [group.display_name for group in groups]
		values = [(group.voted_count/group.total_voters if group.total_voters > 0 else 0) * 100 for group in groups]

		fig, ax = plt.subplots()

		bar = ax.bar(labels, values, label=labels)
		ax.bar_label(bar, label_type='center', fmt='%.1f%%')
		ax.set_xlabel('Klasa')
		ax.set_ylabel('Frekwencja [w %]')
		ax.set_title('Frekwencja według klasy')

		buffer = io.BytesIO()
		plt.savefig(buffer, format='svg')
		plt.close(fig)
		buffer.seek(0)

		return HttpResponse(buffer.read(), 'image/svg+xml')

		def has_add_permission(self, request):
		return False

uv.lock

+397 −0

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