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55 lines
1.5 KiB
Python
55 lines
1.5 KiB
Python
# pylint: disable=C,R,W
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"""a collection of Annotation-related models"""
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from flask_appbuilder import Model
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from sqlalchemy import (
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Column, DateTime, ForeignKey, Index, Integer, String, Text,
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)
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from sqlalchemy.orm import relationship
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from superset.models.helpers import AuditMixinNullable
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class AnnotationLayer(Model, AuditMixinNullable):
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"""A logical namespace for a set of annotations"""
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__tablename__ = 'annotation_layer'
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id = Column(Integer, primary_key=True)
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name = Column(String(250))
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descr = Column(Text)
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def __repr__(self):
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return self.name
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class Annotation(Model, AuditMixinNullable):
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"""Time-related annotation"""
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__tablename__ = 'annotation'
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id = Column(Integer, primary_key=True)
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start_dttm = Column(DateTime)
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end_dttm = Column(DateTime)
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layer_id = Column(Integer, ForeignKey('annotation_layer.id'))
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short_descr = Column(String(500))
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long_descr = Column(Text)
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layer = relationship(
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AnnotationLayer,
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backref='annotation')
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json_metadata = Column(Text)
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__table_args__ = (
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Index('ti_dag_state', layer_id, start_dttm, end_dttm),
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)
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@property
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def data(self):
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return {
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'layer_id': self.layer_id,
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'start_dttm': self.start_dttm,
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'end_dttm': self.end_dttm,
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'short_descr': self.short_descr,
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'long_descr': self.long_descr,
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'layer': self.layer.name if self.layer else None,
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}
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