didier/database/models.py

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from __future__ import annotations
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from datetime import datetime
from sqlalchemy import Column, Integer, Text, ForeignKey, Boolean, DateTime
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from sqlalchemy.orm import declarative_base, relationship
Base = declarative_base()
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class CustomCommand(Base):
"""Custom commands to fill the hole Dyno couldn't"""
__tablename__ = "custom_commands"
command_id: int = Column(Integer, primary_key=True)
name: str = Column(Text, nullable=False, unique=True)
indexed_name: str = Column(Text, nullable=False, index=True)
response: str = Column(Text, nullable=False)
aliases: list[CustomCommandAlias] = relationship(
"CustomCommandAlias", back_populates="command", uselist=True, cascade="all, delete-orphan", lazy="selectin"
)
class CustomCommandAlias(Base):
"""Aliases for custom commands"""
__tablename__ = "custom_command_aliases"
alias_id: int = Column(Integer, primary_key=True)
alias: str = Column(Text, nullable=False, unique=True)
indexed_alias: str = Column(Text, nullable=False, index=True)
command_id: int = Column(Integer, ForeignKey("custom_commands.command_id"))
command: CustomCommand = relationship("CustomCommand", back_populates="aliases", uselist=False, lazy="selectin")
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class UforaCourse(Base):
"""A course on Ufora"""
__tablename__ = "ufora_courses"
course_id: int = Column(Integer, primary_key=True)
name: str = Column(Text, nullable=False, unique=True)
code: str = Column(Text, nullable=False, unique=True)
year: int = Column(Integer, nullable=False)
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log_announcements: bool = Column(Boolean, default=False, nullable=False)
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announcements: list[UforaAnnouncement] = relationship(
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"UforaAnnouncement", back_populates="course", cascade="all, delete-orphan", lazy="selectin"
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)
aliases: list[UforaCourseAlias] = relationship(
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"UforaCourseAlias", back_populates="course", cascade="all, delete-orphan", lazy="selectin"
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)
class UforaCourseAlias(Base):
"""An alias for a course on Ufora that we use to refer to them"""
__tablename__ = "ufora_course_aliases"
alias_id: int = Column(Integer, primary_key=True)
alias: str = Column(Text, nullable=False, unique=True)
course_id: int = Column(Integer, ForeignKey("ufora_courses.course_id"))
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course: UforaCourse = relationship("UforaCourse", back_populates="aliases", uselist=False, lazy="selectin")
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class UforaAnnouncement(Base):
"""An announcement sent on Ufora"""
__tablename__ = "ufora_announcements"
announcement_id = Column(Integer, primary_key=True)
course_id = Column(Integer, ForeignKey("ufora_courses.course_id"))
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publication_date: datetime = Column(DateTime(timezone=True))
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course: UforaCourse = relationship("UforaCourse", back_populates="announcements", uselist=False, lazy="selectin")