25 lines
1.0 KiB
Python
25 lines
1.0 KiB
Python
from typing import List
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from sqlalchemy import String, ForeignKey
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from app.domain.models.base import RootTable
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class Lesson(RootTable):
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__tablename__ = 'lessons'
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title: Mapped[str] = mapped_column(String(250), nullable=False)
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description: Mapped[str] = mapped_column(nullable=True)
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text: Mapped[str] = mapped_column(nullable=True)
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number: Mapped[int] = mapped_column(nullable=False)
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course_id: Mapped[int] = mapped_column(ForeignKey('courses.id'), nullable=False)
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creator_id: Mapped[int] = mapped_column(ForeignKey('users.id'), nullable=False)
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course: Mapped['Course'] = relationship('Course', back_populates='lessons')
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creator: Mapped['User'] = relationship('User', back_populates='created_lessons', lazy='joined')
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files: Mapped[List['LessonFile']] = relationship('LessonFile', back_populates='lesson')
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user_check_lessons: Mapped[List['UserCheckLessons']] = relationship('UserCheckLessons', back_populates='lesson', cascade="all, delete-orphan",)
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