46 lines
1.3 KiB
Python
46 lines
1.3 KiB
Python
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from typing import Optional
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from django.core.cache import cache
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from rest_framework.utils.serializer_helpers import ReturnDict
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ENTRIES_CACHE_TIMEOUT = 7200 # 2 hours
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def _entries_cache_key(project_slug: str, version_slug: str, category_slug: str) -> str:
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return f"entries_{project_slug}_{version_slug}_{category_slug}"
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def get_entries_cache(
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project_slug: str, version_slug: str, category_slug: str
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) -> Optional[ReturnDict]:
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"""
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Fetches cached entries data.
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"""
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return cache.get(_entries_cache_key(project_slug, version_slug, category_slug))
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def set_entries_cache(
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project_slug: str, version_slug: str, category_slug: str, data: ReturnDict
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) -> None:
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"""
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Updates cached entries data.
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"""
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cache.set(
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_entries_cache_key(project_slug, version_slug, category_slug),
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data,
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ENTRIES_CACHE_TIMEOUT,
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)
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def invalidate_entries_cache(
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project_slug: str, version_slug: str, data: ReturnDict
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) -> None:
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"""
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Invalidates all affected entries caches.
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"""
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all_categories = set()
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for entry in data["entries"]:
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for category in entry["categories"]:
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all_categories.add(category)
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for category_slug in all_categories:
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cache.delete(_entries_cache_key(project_slug, version_slug, category_slug))
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