小编pto*_*tou的帖子

SQLAlchemy:急切加载关系的关系的关系

我有这样的结构:

class User(DeclarativeBase):
   ...
   teamMemberships = orm.relationship("TeamXREF",backref="user",lazy = "dynamic")


class TeamXREF(DeclarativeBase):
   ...


class Team(DeclarativeBase):
   ...
   name=db.Column(String)
   teamMembers = orm.relationship("TeamXREF",backref="team",lazy = "dynamic")
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但是,我无法设法写入 1 个查询(我总是以循环和多个查询结束)来立即加载所有这些信息:

  • 用户.teamMemberships
  • 用户.teamMemberships.team
  • 用户.teamMemberships.team.teamMembers
  • user.teamMemberships.team.teamMembers.user

python sqlalchemy eager-loading

8
推荐指数
1
解决办法
7950
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jq - 嵌套字典解析器和提取密钥

我试图用jq解析以下结构:

{
    "a": {
        "sensitive": false,
        "type": "string",
        "value": "mykeypair"
    },
    "b": {
        "sensitive": false,
        "type": "string",
        "value": "123"
    }
}
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并将此作为输出:

{
        "a": "mykeypair",
        "b": "123"
}
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我想要键和作为值,字段'value'的值.任何的想法?干杯,

json filter jq

2
推荐指数
2
解决办法
731
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