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GenExam-IA/backend/app/models/exam.py
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2026-05-13 13:43:32 +02:00

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4.0 KiB
Python

import enum
import uuid
from datetime import datetime
from typing import Any
from sqlalchemy import DateTime, Enum, Float, ForeignKey, String, Text, func
from sqlalchemy.dialects.postgresql import JSONB, UUID
from sqlalchemy.orm import Mapped, mapped_column, relationship
from app.db.base import Base
class QuestionType(str, enum.Enum):
MULTICHOICE = "multichoice"
TRUE_FALSE = "truefalse"
SHORT_ANSWER = "shortanswer"
MATCHING = "matching"
class Difficulty(str, enum.Enum):
EASY = "easy"
MEDIUM = "medium"
HARD = "hard"
VERY_HARD = "very_hard"
class ExportStatus(str, enum.Enum):
COMPLETED = "completed"
FAILED = "failed"
class ExportFormat(str, enum.Enum):
XML = "xml"
TXT = "txt"
JSON = "json"
class ExamTemplate(Base):
__tablename__ = "exam_templates"
id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
title: Mapped[str] = mapped_column(String(200), nullable=False)
subject: Mapped[str] = mapped_column(String(200), nullable=False)
educational_level: Mapped[str] = mapped_column(String(120), nullable=False)
language: Mapped[str] = mapped_column(String(20), nullable=False, default="es")
settings: Mapped[dict[str, Any]] = mapped_column(JSONB, nullable=False, default=dict)
difficulty_profile: Mapped[dict[str, Any]] = mapped_column(JSONB, nullable=False, default=dict)
created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())
questions: Mapped[list["Question"]] = relationship(
back_populates="template",
cascade="all, delete-orphan",
passive_deletes=True,
)
export_jobs: Mapped[list["ExportJob"]] = relationship(
back_populates="template",
cascade="all, delete-orphan",
passive_deletes=True,
)
class Question(Base):
__tablename__ = "questions"
id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
template_id: Mapped[uuid.UUID] = mapped_column(
UUID(as_uuid=True),
ForeignKey("exam_templates.id", ondelete="CASCADE"),
nullable=False,
index=True,
)
question_type: Mapped[QuestionType] = mapped_column(Enum(QuestionType), nullable=False)
statement: Mapped[str] = mapped_column(Text, nullable=False)
correct_answers: Mapped[list[str]] = mapped_column(JSONB, nullable=False, default=list)
wrong_answers: Mapped[list[str]] = mapped_column(JSONB, nullable=False, default=list)
matching_pairs: Mapped[list[dict[str, str]]] = mapped_column(JSONB, nullable=False, default=list)
difficulty: Mapped[Difficulty] = mapped_column(Enum(Difficulty), nullable=False, default=Difficulty.MEDIUM)
score: Mapped[float] = mapped_column(Float, nullable=False, default=1.0)
penalty: Mapped[float] = mapped_column(Float, nullable=False, default=0.0)
options: Mapped[dict[str, Any]] = mapped_column(JSONB, nullable=False, default=dict)
created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
template: Mapped[ExamTemplate] = relationship(back_populates="questions")
class ExportJob(Base):
__tablename__ = "export_jobs"
id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
template_id: Mapped[uuid.UUID] = mapped_column(
UUID(as_uuid=True),
ForeignKey("exam_templates.id", ondelete="CASCADE"),
nullable=False,
index=True,
)
status: Mapped[ExportStatus] = mapped_column(Enum(ExportStatus), nullable=False)
format: Mapped[ExportFormat] = mapped_column(Enum(ExportFormat), nullable=False)
content: Mapped[str] = mapped_column(Text, nullable=False)
created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
template: Mapped[ExamTemplate] = relationship(back_populates="export_jobs")