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pds-2021-g2-nest/nest_backend/database/tables/Tweet.py

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Python

"""
This module defines the Tweet database class.
"""
from ..base import ext
class Tweet(ext.Model):
__tablename__ = "tweet"
snowflake = ext.Column(ext.String, primary_key=True)
content = ext.Column(ext.String)
location = ext.Column(ext.String)
place = ext.Column(ext.String)
poster = ext.Column(ext.String)
insert_time = ext.Column(ext.DateTime, nullable=False)
# Relationships
repositories = ext.relationship("Composed", back_populates="tweet", cascade="all, delete")
conditions = ext.relationship("Contains", back_populates="tweet", cascade="all, delete")
def to_json(self):
return {"snowflake": self.snowflake, "content": self.content, "location": self.location, "poster": self.poster,
"place": self.place, "insert_time": self.insert_time.isoformat(),
"conditions": [c.condition.to_json() for c in self.conditions]}