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Add cascade delete to the 1 to composite relationships. (#1295)
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@ -40,7 +40,7 @@ from sqlalchemy import (
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)
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from sqlalchemy.ext.compiler import compiles
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from sqlalchemy.ext.declarative import declared_attr
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from sqlalchemy.orm import relationship
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from sqlalchemy.orm import backref, relationship
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from sqlalchemy.sql import table, literal_column, text, column
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from sqlalchemy.sql.expression import ColumnClause, TextAsFrom
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from sqlalchemy_utils import EncryptedType
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@ -679,7 +679,9 @@ class SqlaTable(Model, Queryable, AuditMixinNullable):
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user_id = Column(Integer, ForeignKey('ab_user.id'))
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owner = relationship('User', backref='tables', foreign_keys=[user_id])
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database = relationship(
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'Database', backref='tables', foreign_keys=[database_id])
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'Database',
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backref=backref('tables', cascade='all, delete-orphan'),
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foreign_keys=[database_id])
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offset = Column(Integer, default=0)
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cache_timeout = Column(Integer)
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schema = Column(String(255))
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@ -1069,7 +1071,9 @@ class SqlMetric(Model, AuditMixinNullable):
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metric_type = Column(String(32))
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table_id = Column(Integer, ForeignKey('tables.id'))
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table = relationship(
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'SqlaTable', backref='metrics', foreign_keys=[table_id])
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'SqlaTable',
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backref=backref('metrics', cascade='all, delete-orphan'),
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foreign_keys=[table_id])
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expression = Column(Text)
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description = Column(Text)
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is_restricted = Column(Boolean, default=False, nullable=True)
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@ -1096,7 +1100,9 @@ class TableColumn(Model, AuditMixinNullable):
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id = Column(Integer, primary_key=True)
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table_id = Column(Integer, ForeignKey('tables.id'))
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table = relationship(
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'SqlaTable', backref='columns', foreign_keys=[table_id])
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'SqlaTable',
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backref=backref('columns', cascade='all, delete-orphan'),
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foreign_keys=[table_id])
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column_name = Column(String(255))
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verbose_name = Column(String(1024))
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is_dttm = Column(Boolean, default=False)
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@ -1242,7 +1248,10 @@ class DruidDatasource(Model, AuditMixinNullable, Queryable):
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description = Column(Text)
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default_endpoint = Column(Text)
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user_id = Column(Integer, ForeignKey('ab_user.id'))
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owner = relationship('User', backref='datasources', foreign_keys=[user_id])
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owner = relationship(
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'User',
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backref=backref('datasources', cascade='all, delete-orphan'),
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foreign_keys=[user_id])
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cluster_name = Column(
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String(250), ForeignKey('clusters.cluster_name'))
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cluster = relationship(
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@ -1799,8 +1808,10 @@ class DruidMetric(Model, AuditMixinNullable):
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String(255),
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ForeignKey('datasources.datasource_name'))
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# Setting enable_typechecks=False disables polymorphic inheritance.
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datasource = relationship('DruidDatasource', backref='metrics',
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enable_typechecks=False)
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datasource = relationship(
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'DruidDatasource',
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backref=backref('metrics', cascade='all, delete-orphan'),
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enable_typechecks=False)
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json = Column(Text)
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description = Column(Text)
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is_restricted = Column(Boolean, default=False, nullable=True)
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@ -1833,8 +1844,10 @@ class DruidColumn(Model, AuditMixinNullable):
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String(255),
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ForeignKey('datasources.datasource_name'))
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# Setting enable_typechecks=False disables polymorphic inheritance.
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datasource = relationship('DruidDatasource', backref='columns',
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enable_typechecks=False)
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datasource = relationship(
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'DruidDatasource',
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backref=backref('columns', cascade='all, delete-orphan'),
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enable_typechecks=False)
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column_name = Column(String(255))
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is_active = Column(Boolean, default=True)
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type = Column(String(32))
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@ -2006,7 +2019,10 @@ class Query(Model):
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database = relationship(
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'Database', foreign_keys=[database_id], backref='queries')
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user = relationship('User', backref='queries', foreign_keys=[user_id])
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user = relationship(
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'User',
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backref=backref('queries', cascade='all, delete-orphan'),
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foreign_keys=[user_id])
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__table_args__ = (
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sqla.Index('ti_user_id_changed_on', user_id, changed_on),
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