70 lines
2.9 KiB
Python
70 lines
2.9 KiB
Python
from datetime import datetime
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from sqlalchemy import DateTime, Float, ForeignKey, Integer, String, Text, UniqueConstraint
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from .database import Base
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class Student(Base):
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__tablename__ = "students"
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id: Mapped[int] = mapped_column(Integer, primary_key=True, index=True)
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first_name: Mapped[str] = mapped_column(String(100))
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age: Mapped[int] = mapped_column(Integer)
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grade: Mapped[str] = mapped_column(String(50))
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created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
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messages = relationship("Message", back_populates="student", cascade="all, delete-orphan")
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mastery = relationship("StudentSkillMastery", back_populates="student", cascade="all, delete-orphan")
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class Message(Base):
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__tablename__ = "messages"
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id: Mapped[int] = mapped_column(Integer, primary_key=True)
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student_id: Mapped[int] = mapped_column(ForeignKey("students.id"), index=True)
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role: Mapped[str] = mapped_column(String(20))
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content: Mapped[str] = mapped_column(Text)
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created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
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student = relationship("Student", back_populates="messages")
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class Skill(Base):
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__tablename__ = "skills"
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id: Mapped[int] = mapped_column(Integer, primary_key=True)
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code: Mapped[str] = mapped_column(String(100), unique=True)
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subject: Mapped[str] = mapped_column(String(50))
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label: Mapped[str] = mapped_column(String(255))
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description: Mapped[str] = mapped_column(Text)
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class StudentSkillMastery(Base):
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__tablename__ = "student_skill_mastery"
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__table_args__ = (UniqueConstraint("student_id", "skill_id", name="uq_student_skill"),)
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id: Mapped[int] = mapped_column(Integer, primary_key=True)
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student_id: Mapped[int] = mapped_column(ForeignKey("students.id"), index=True)
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skill_id: Mapped[int] = mapped_column(ForeignKey("skills.id"), index=True)
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mastery_score: Mapped[float] = mapped_column(Float, default=50.0)
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confidence: Mapped[float] = mapped_column(Float, default=0.2)
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evidence_count: Mapped[int] = mapped_column(Integer, default=0)
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updated_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
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student = relationship("Student", back_populates="mastery")
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skill = relationship("Skill")
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class AssessmentAttempt(Base):
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__tablename__ = "assessment_attempts"
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id: Mapped[int] = mapped_column(Integer, primary_key=True)
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student_id: Mapped[int] = mapped_column(ForeignKey("students.id"), index=True)
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skill_code: Mapped[str] = mapped_column(String(100), index=True)
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question: Mapped[str] = mapped_column(Text)
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expected_answer: Mapped[str] = mapped_column(Text)
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student_answer: Mapped[str] = mapped_column(Text)
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is_correct: Mapped[int] = mapped_column(Integer)
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feedback: Mapped[str] = mapped_column(Text)
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created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
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