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feat: dedup downloads by (url, format_id) index, reuse existing files

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mini
2026-02-18 23:00:49 +08:00
parent 25c4973f57
commit 0bab021e21
4 changed files with 36 additions and 4 deletions
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8
backend/app/models.py
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@@ -1,6 +1,6 @@
"""SQLAlchemy models."""
from datetime import datetime
from sqlalchemy import Column, Integer, String, DateTime, BigInteger, Text
from sqlalchemy import Column, Integer, String, DateTime, BigInteger, Text, Index
from app.database import Base
@@ -9,7 +9,7 @@ class Video(Base):
id = Column(Integer, primary_key=True, autoincrement=True)
task_id = Column(String(64), unique=True, index=True, nullable=False)
url = Column(String(512), nullable=False)
url = Column(String(512), nullable=False, index=True)
title = Column(String(512), default="")
platform = Column(String(32), default="twitter")
thumbnail = Column(String(1024), default="")
@@ -24,3 +24,7 @@ class Video(Base):
progress = Column(Integer, default=0) # 0-100
created_at = Column(DateTime, default=datetime.utcnow)
updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
__table_args__ = (
Index("ix_video_url_format_id", "url", "format_id"),
)