redtea
4bc5fcef7a
- Redis / Celery / Celery Beat - кэширование популярных тегов и лучших участников - асинхронные уведомления в Centrifugo - отправка email-уведомлений через Celery - полнотекстовый поиск и подсказки - Docker Compose инфраструктура
56 lines
1.8 KiB
Python
56 lines
1.8 KiB
Python
from datetime import timedelta
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from django.utils import timezone
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from django.core.cache import cache
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from django.contrib.auth.models import User
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from django.db.models import Count, Q
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from .models import Tag
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def sidebar_data(request):
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popular_tags = cache.get('popular_tags')
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best_members = cache.get('best_members')
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if popular_tags is None:
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three_months_ago = timezone.now() - timedelta(days=90)
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popular_qs = Tag.objects.annotate(
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q_count=Count('question', filter=Q(question__created_at__gte=three_months_ago))
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).order_by('-q_count')[:10]
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popular_tags = [
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{'name': tag.name, 'count': tag.q_count}
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for tag in popular_qs
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]
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cache.set('popular_tags', popular_tags, timeout=60 * 60)
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if best_members is None:
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week_ago = timezone.now() - timedelta(days=7)
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users_q = User.objects.annotate(
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q_count=Count('question', filter=Q(question__created_at__gte=week_ago))
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)
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users_a = User.objects.annotate(
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a_count=Count('answer', filter=Q(answer__created_at__gte=week_ago)))
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scores = {}
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for u in users_q:
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scores[u.id] = scores.get(u.id, 0) + (u.q_count or 0)
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for u in users_a:
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scores[u.id] = scores.get(u.id, 0) + (u.a_count or 0)
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best_members_list = User.objects.filter(id__in=list(scores.keys()))
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best_members = [
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{
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'id': u.id,
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'username': u.username,
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'score': scores.get(u.id, 0)
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}
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for u in best_members_list
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]
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best_members.sort(key=lambda x: x['score'], reverse=True)
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best_members = best_members[:10]
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cache.set('best_members', best_members, timeout=60 * 60)
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return {
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'popular_tags': popular_tags,
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'best_members': best_members,
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}
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