30 lines
620 B
Python
30 lines
620 B
Python
import logging
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from sqlalchemy import Column, ForeignKey, Integer, String
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from platypush.common.db import is_defined
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from . import Entity
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logger = logging.getLogger(__name__)
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if not is_defined('variable'):
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class Variable(Entity):
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"""
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Models a variable entity.
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"""
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__tablename__ = 'variable'
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id = Column(
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Integer, ForeignKey('entity.id', ondelete='CASCADE'), primary_key=True
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)
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value = Column(String)
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__table_args__ = {'keep_existing': True}
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__mapper_args__ = {
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'polymorphic_identity': __tablename__,
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}
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