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https://github.com/beak-insights/felicity-lims.git
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70 lines
2.2 KiB
Python
70 lines
2.2 KiB
Python
from sqlalchemy import Boolean, Column, ForeignKey, String, Table
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from sqlalchemy.orm import relationship
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from felicity.apps.abstract import BaseEntity, BaseMPTT
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"""
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Many to Many Link between Users (recipients) and MessageThread
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"""
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message_thread_recipient = Table(
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"message_thread_recipient",
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BaseEntity.metadata,
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Column("message_thread_uid", ForeignKey("message_thread.uid"), primary_key=True),
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Column("user_uid", ForeignKey("user.uid"), primary_key=True),
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)
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"""
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Many to Many Link between Users (deletions) and MessageThread
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"""
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message_thread_delete = Table(
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"message_thread_delete",
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BaseEntity.metadata,
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Column("message_thread_uid", ForeignKey("message_thread.uid"), primary_key=True),
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Column("user_uid", ForeignKey("user.uid"), primary_key=True),
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)
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class MessageThread(BaseEntity):
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"""MessageThread"""
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__tablename__ = "message_thread"
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broadcast = Column(Boolean, nullable=False)
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messages = relationship("Message", back_populates="thread", lazy="selectin")
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recipients = relationship(
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"User", secondary=message_thread_recipient, lazy="selectin"
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)
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deleted_by = relationship("User", secondary=message_thread_delete, lazy="selectin")
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"""
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Many to Many Link between Users (views) and Message
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"""
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message_view = Table(
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"message_view",
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BaseEntity.metadata,
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Column("message_uid", ForeignKey("message.uid"), primary_key=True),
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Column("user_uid", ForeignKey("user.uid"), primary_key=True),
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)
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"""
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Many to Many Link between Users (deletions) and Message
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"""
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message_delete = Table(
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"message_delete",
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BaseEntity.metadata,
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Column("message_uid", ForeignKey("message.uid"), primary_key=True),
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Column("user_uid", ForeignKey("user.uid"), primary_key=True),
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)
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class Message(BaseEntity, BaseMPTT):
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"""Message"""
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__tablename__ = "message"
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thread_uid = Column(String, ForeignKey("message_thread.uid"), nullable=True)
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thread = relationship("MessageThread", back_populates="messages", lazy="selectin")
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body = Column(String, nullable=False)
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viewers = relationship("User", secondary=message_view, lazy="selectin")
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deleted_by = relationship("User", secondary=message_delete, lazy="selectin")
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