superset models 源码
superset models 代码
文件路径：/superset/key_value/models.py
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# to you under the Apache License, Version 2.0 (the
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from flask_appbuilder import Model
from sqlalchemy import Column, DateTime, ForeignKey, Integer, LargeBinary, String
from sqlalchemy.orm import relationship
from superset import security_manager
from superset.models.helpers import AuditMixinNullable, ImportExportMixin
VALUE_MAX_SIZE = 2**24 - 1
class KeyValueEntry(Model, AuditMixinNullable, ImportExportMixin):
"""Key value store entity"""
__tablename__ = "key_value"
id = Column(Integer, primary_key=True)
resource = Column(String(32), nullable=False)
value = Column(LargeBinary(length=VALUE_MAX_SIZE), nullable=False)
created_on = Column(DateTime, nullable=True)
created_by_fk = Column(Integer, ForeignKey("ab_user.id"), nullable=True)
changed_on = Column(DateTime, nullable=True)
expires_on = Column(DateTime, nullable=True)
changed_by_fk = Column(Integer, ForeignKey("ab_user.id"), nullable=True)
created_by = relationship(security_manager.user_model, foreign_keys=[created_by_fk])
changed_by = relationship(security_manager.user_model, foreign_keys=[changed_by_fk])
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