小鱼开发
60 lines
1.6 KiB
Python
60 lines
1.6 KiB
Python
"""
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素材主表模型
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============
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空镜视频片段的元数据中心，一行代表一个素材。
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素材直接挂载在三级分类（mjk_categories.level=3）下，
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匹配时通过 category_id 精确关联到具体场景分类。
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"""
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from sqlalchemy import BigInteger, ForeignKey, String
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from sqlalchemy.orm import Mapped, mapped_column
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from app.models.base import BaseModelBigInt
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class BrollMaterial(BaseModelBigInt):
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"""空镜素材主表"""
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__tablename__ = "mjk_materials"
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category_id: Mapped[int] = mapped_column(
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BigInteger,
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ForeignKey("mjk_categories.id"),
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nullable=False,
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comment="所属三级分类ID，关联 mjk_categories",
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)
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title: Mapped[str] = mapped_column(
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String(256),
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nullable=False,
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comment="素材标题/文件名，运营后台识别用",
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)
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url: Mapped[str] = mapped_column(
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String(1024),
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nullable=False,
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comment="七牛云 CDN 访问地址，FFmpeg合成和前端播放直接使用",
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)
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duration: Mapped[float] = mapped_column(
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default=0,
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nullable=False,
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comment="视频时长（秒），FFmpeg probe 提取，入库时必须大于0",
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)
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usage_count: Mapped[int] = mapped_column(
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BigInteger,
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default=0,
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nullable=False,
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comment="累计使用次数，驱动加权随机算法",
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)
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status: Mapped[str] = mapped_column(
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String(16),
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default="active",
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nullable=False,
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comment="状态：active（可用）/ disabled（下架）/ deleted（软删除）",
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)
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