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27ffc0ed74
### What problem does this PR solve? 1. Add delete_by_ids method 2. Add get_doc_ids_by_doc_names 3. Improve user_canvan_version's logic (avoid O(n) db IO) 4. Improve document delete logic (avoid O(n) db IO) ### Type of change - [x] Performance Improvement
47 lines
1.5 KiB
Python
47 lines
1.5 KiB
Python
from api.db.db_models import UserCanvasVersion, DB
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from api.db.services.common_service import CommonService
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from peewee import DoesNotExist
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class UserCanvasVersionService(CommonService):
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model = UserCanvasVersion
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@classmethod
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@DB.connection_context()
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def list_by_canvas_id(cls, user_canvas_id):
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try:
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user_canvas_version = cls.model.select(
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*[cls.model.id,
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cls.model.create_time,
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cls.model.title,
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cls.model.create_date,
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cls.model.update_date,
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cls.model.user_canvas_id,
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cls.model.update_time]
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).where(cls.model.user_canvas_id == user_canvas_id)
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return user_canvas_version
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except DoesNotExist:
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return None
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except Exception:
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return None
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@classmethod
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@DB.connection_context()
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def delete_all_versions(cls, user_canvas_id):
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try:
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user_canvas_version = cls.model.select().where(cls.model.user_canvas_id == user_canvas_id).order_by(cls.model.create_time.desc())
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if user_canvas_version.count() > 20:
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delete_ids = []
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for i in range(20, user_canvas_version.count()):
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delete_ids.append(user_canvas_version[i].id)
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cls.delete_by_ids(delete_ids)
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return True
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except DoesNotExist:
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return None
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except Exception:
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return None
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