31 lines
1.2 KiB
Python
31 lines
1.2 KiB
Python
"""
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Сигналы для пользователей.
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"""
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from django.db.models.signals import post_save, post_delete
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from django.dispatch import receiver
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from django.core.cache import cache
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from .models import MentorStudentConnection
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def _invalidate_manage_clients_cache(mentor_id):
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"""Очистить кеш manage/clients для ментора (после удаления/изменения связи)."""
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for page in range(1, 10):
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for size in [10, 20, 50, 100, 1000]:
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cache.delete(f'manage_clients_{mentor_id}_{page}_{size}')
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@receiver(post_delete, sender=MentorStudentConnection)
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def mentor_student_connection_deleted(sender, instance, **kwargs):
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"""При удалении связи — очистить кеш списка клиентов ментора."""
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if instance.mentor_id:
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_invalidate_manage_clients_cache(instance.mentor_id)
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@receiver(post_save, sender=MentorStudentConnection)
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def mentor_student_connection_changed(sender, instance, created, **kwargs):
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"""При изменении связи — очистить кеш (статус и т.д.)."""
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if instance.mentor_id:
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_invalidate_manage_clients_cache(instance.mentor_id)
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