370 lines
16 KiB
Python
370 lines
16 KiB
Python
from datetime import datetime, timezone
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from pgvector.sqlalchemy import Vector
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from sqlalchemy import JSON, Boolean, Column, DateTime, Float, ForeignKey, Integer, LargeBinary, String, Text, UniqueConstraint
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from sqlalchemy.types import TypeDecorator
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from .db import Base
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def now():
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return datetime.now(timezone.utc)
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class Embedding(TypeDecorator):
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impl = JSON
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cache_ok = True
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def load_dialect_impl(self, dialect):
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return dialect.type_descriptor(Vector(1024) if dialect.name == "postgresql" else JSON())
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class Course(Base):
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__tablename__ = "courses"
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id = Column(Integer, primary_key=True)
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name = Column(String(200), unique=True, nullable=False)
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code = Column(String(100), unique=True, nullable=False)
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created_at = Column(DateTime(timezone=True), default=now)
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class CourseVersion(Base):
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__tablename__ = "course_versions"
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id = Column(Integer, primary_key=True)
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course_id = Column(Integer, ForeignKey("courses.id"), nullable=False)
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version = Column(Integer, nullable=False)
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title = Column(String(200), nullable=False)
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objectives = Column(JSON, default=list, nullable=False)
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indicators = Column(JSON, default=list, nullable=False)
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directions = Column(JSON, default=list, nullable=False)
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prompts = Column(JSON, default=dict, nullable=False)
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templates = Column(JSON, default=list, nullable=False)
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published = Column(Boolean, default=False, nullable=False)
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created_at = Column(DateTime(timezone=True), default=now)
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__table_args__ = (UniqueConstraint("course_id", "version"),)
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class CourseObjective(Base):
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__tablename__ = "course_objectives"
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id = Column(Integer, primary_key=True)
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course_version_id = Column(Integer, ForeignKey("course_versions.id"), nullable=False)
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code = Column(String(50), nullable=False)
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name = Column(String(300), nullable=False)
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description = Column(Text, default="")
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indicator_codes = Column(JSON, default=list)
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__table_args__ = (UniqueConstraint("course_version_id", "code"),)
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class GraduationIndicator(Base):
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__tablename__ = "graduation_indicators"
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id = Column(Integer, primary_key=True)
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course_version_id = Column(Integer, ForeignKey("course_versions.id"), nullable=False)
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code = Column(String(50), nullable=False)
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description = Column(Text, nullable=False)
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__table_args__ = (UniqueConstraint("course_version_id", "code"),)
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class TopicDirection(Base):
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__tablename__ = "topic_directions"
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id = Column(Integer, primary_key=True)
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course_version_id = Column(Integer, ForeignKey("course_versions.id"), nullable=False)
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name = Column(String(200), nullable=False)
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examples = Column(JSON, default=list)
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__table_args__ = (UniqueConstraint("course_version_id", "name"),)
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class RubricVersion(Base):
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__tablename__ = "rubric_versions"
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id = Column(Integer, primary_key=True)
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course_version_id = Column(Integer, ForeignKey("course_versions.id"), nullable=False)
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version = Column(Integer, nullable=False)
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criteria = Column(JSON, default=list, nullable=False)
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weights = Column(JSON, default=dict, nullable=False)
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published = Column(Boolean, default=False, nullable=False)
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created_at = Column(DateTime(timezone=True), default=now)
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__table_args__ = (UniqueConstraint("course_version_id", "version"),)
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class RubricCriterion(Base):
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__tablename__ = "rubric_criteria"
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id = Column(Integer, primary_key=True)
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rubric_version_id = Column(Integer, ForeignKey("rubric_versions.id"), nullable=False)
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criterion_id = Column(String(100), nullable=False)
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category = Column(String(50), nullable=False)
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name = Column(String(300), nullable=False)
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description = Column(Text, nullable=False)
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max_score = Column(Float, nullable=False)
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linked_objectives = Column(JSON, default=list)
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linked_outcomes = Column(JSON, default=list)
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required_evidence = Column(JSON, default=list)
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__table_args__ = (UniqueConstraint("rubric_version_id", "criterion_id"),)
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class RubricScoreLevel(Base):
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__tablename__ = "rubric_score_levels"
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id = Column(Integer, primary_key=True)
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rubric_criterion_id = Column(Integer, ForeignKey("rubric_criteria.id"), nullable=False)
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min_score = Column(Float, nullable=False)
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max_score = Column(Float, nullable=False)
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description = Column(Text, nullable=False)
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class Student(Base):
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__tablename__ = "students"
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id = Column(Integer, primary_key=True)
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student_no = Column(String(80), unique=True, nullable=False)
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name = Column(String(100), nullable=False)
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class Project(Base):
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__tablename__ = "projects"
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id = Column(Integer, primary_key=True)
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course_version_id = Column(Integer, ForeignKey("course_versions.id"), nullable=False)
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student_id = Column(Integer, ForeignKey("students.id"), nullable=False)
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topic = Column(String(500), nullable=False)
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direction = Column(String(200), default="")
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source_dir = Column(String(1000), nullable=False)
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status = Column(String(40), default="imported")
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facts = Column(JSON, default=dict, nullable=False)
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created_at = Column(DateTime(timezone=True), default=now)
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__table_args__ = (UniqueConstraint("course_version_id", "source_dir"),)
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class Submission(Base):
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__tablename__ = "submissions"
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id = Column(Integer, primary_key=True)
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project_id = Column(Integer, ForeignKey("projects.id"), nullable=False)
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category = Column(String(50), nullable=False)
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status = Column(String(40), nullable=False)
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__table_args__ = (UniqueConstraint("project_id", "category"),)
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class SubmissionFile(Base):
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__tablename__ = "submission_files"
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id = Column(Integer, primary_key=True)
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project_id = Column(Integer, ForeignKey("projects.id"), nullable=False)
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submission_id = Column(Integer, ForeignKey("submissions.id"), nullable=True)
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category = Column(String(40), nullable=False)
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relative_path = Column(String(1200), nullable=False)
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mime_type = Column(String(100), nullable=False)
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size = Column(Integer, nullable=False)
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mtime = Column(Float, nullable=False)
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sha256 = Column(String(64), nullable=False)
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recognition_status = Column(String(40), nullable=False)
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parse_status = Column(String(40), default="pending")
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parse_error = Column(Text, default="")
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parsed = Column(JSON, default=dict, nullable=False)
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__table_args__ = (UniqueConstraint("project_id", "relative_path"),)
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class KnowledgeDocument(Base):
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__tablename__ = "knowledge_documents"
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id = Column(Integer, primary_key=True)
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course_version_id = Column(Integer, ForeignKey("course_versions.id"), nullable=False)
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project_id = Column(Integer, ForeignKey("projects.id"), nullable=True)
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submission_file_id = Column(Integer, ForeignKey("submission_files.id"), nullable=True)
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title = Column(String(500), nullable=False)
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document_type = Column(String(80), nullable=False)
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source_hash = Column(String(64), nullable=False)
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index_version = Column(Integer, nullable=False, default=2, server_default="1")
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status = Column(String(40), default="ready")
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__table_args__ = (UniqueConstraint("course_version_id", "project_id", "submission_file_id", "source_hash"),)
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class KnowledgePage(Base):
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__tablename__ = "knowledge_pages"
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document_id = Column(Integer, ForeignKey("knowledge_documents.id", ondelete="CASCADE"), primary_key=True)
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page = Column(Integer, primary_key=True)
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text = Column(Text, nullable=False, default="")
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image_path = Column(String(1200), nullable=True) # Relative to processed_path.
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# Page-level classification: cover, abstract, toc, body, references or unknown.
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page_type = Column(String(20), nullable=False, default="unknown", server_default="unknown")
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mixed = Column(Boolean, nullable=False, default=False, server_default="false")
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section = Column(String(500), default="")
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chapter = Column(String(500), default="")
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confidence = Column(Float, nullable=True)
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# Bounded classifier evidence: which signals decided the type, kept for audit.
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classification = Column(JSON, default=dict, nullable=False)
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class KnowledgeChunk(Base):
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__tablename__ = "knowledge_chunks"
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id = Column(Integer, primary_key=True)
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document_id = Column(Integer, ForeignKey("knowledge_documents.id"), nullable=False)
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course_version_id = Column(Integer, nullable=False)
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project_id = Column(Integer, nullable=True)
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document_type = Column(String(80), nullable=False)
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page = Column(Integer, nullable=False)
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section = Column(String(500), default="")
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chapter = Column(String(500), default="")
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page_type = Column(String(20), nullable=False, default="unknown", server_default="unknown")
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block_type = Column(String(20), nullable=False, default="body", server_default="body")
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text = Column(Text, nullable=False)
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embedding = Column(Embedding, nullable=True)
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class ScoringBatch(Base):
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__tablename__ = "scoring_batches"
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id = Column(Integer, primary_key=True)
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course_version_id = Column(Integer, ForeignKey("course_versions.id"), nullable=False)
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rubric_version_id = Column(Integer, ForeignKey("rubric_versions.id"), nullable=False)
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course_snapshot = Column(JSON, nullable=False)
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rubric_snapshot = Column(JSON, nullable=False)
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model_config_snapshot = Column(JSON, nullable=False)
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embedding_model_name = Column(String(200), nullable=False)
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embedding_model_version = Column(String(100), nullable=False)
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status = Column(String(40), default="created")
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project_ids = Column(JSON, nullable=True) # NULL identifies a legacy batch with unknown original membership.
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progress_done = Column(Integer, default=0)
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progress_total = Column(Integer, default=0)
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error = Column(Text, default="")
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created_at = Column(DateTime(timezone=True), default=now)
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finished_at = Column(DateTime(timezone=True), nullable=True)
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class CriterionScore(Base):
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__tablename__ = "criterion_scores"
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id = Column(Integer, primary_key=True)
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batch_id = Column(Integer, ForeignKey("scoring_batches.id"), nullable=False)
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project_id = Column(Integer, ForeignKey("projects.id"), nullable=False)
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criterion_id = Column(String(100), nullable=False)
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model_score = Column(Float, nullable=True)
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teacher_score = Column(Float, nullable=True)
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model_comment = Column(Text, default="")
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teacher_comment = Column(Text, nullable=True)
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confidence = Column(Float, nullable=True)
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missing_evidence = Column(JSON, default=list)
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suggestion = Column(Text, default="")
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status = Column(String(40), default="pending")
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error = Column(Text, default="")
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#: Content targets that still lacked body evidence, with the search that was run.
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#: Kept after teacher review so the original retrieval problem stays auditable.
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evidence_gaps = Column(JSON, default=list)
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__table_args__ = (UniqueConstraint("batch_id", "project_id", "criterion_id"),)
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@property
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def final_score(self):
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return self.teacher_score if self.teacher_score is not None else self.model_score
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class ScoreEvidence(Base):
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__tablename__ = "score_evidences"
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id = Column(Integer, primary_key=True)
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score_id = Column(Integer, ForeignKey("criterion_scores.id"), nullable=False)
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document_id = Column(Integer, ForeignKey("knowledge_documents.id"), nullable=True)
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submission_file_id = Column(Integer, ForeignKey("submission_files.id"), nullable=True)
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page = Column(Integer, nullable=False)
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quote = Column(Text, nullable=False)
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image_path = Column(String(1200), nullable=True)
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# Which required-evidence target this quotation is offered to support.
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target_id = Column(String(50), default="", server_default="")
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target_label = Column(String(300), default="", server_default="")
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# Page type of the source passage, and its role in the judgement.
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page_type = Column(String(20), default="unknown", server_default="unknown")
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source_role = Column(String(20), default="content", server_default="content")
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# True when the quotation was written before this retrieval policy existed.
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historical = Column(Boolean, default=False, nullable=False, server_default="false")
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class TeacherRevision(Base):
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__tablename__ = "teacher_revisions"
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id = Column(Integer, primary_key=True)
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score_id = Column(Integer, ForeignKey("criterion_scores.id"), nullable=False)
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old_score = Column(Float, nullable=True)
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new_score = Column(Float, nullable=True)
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old_comment = Column(Text, nullable=True)
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new_comment = Column(Text, nullable=True)
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reason = Column(Text, default="")
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created_at = Column(DateTime(timezone=True), default=now)
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class ExportTask(Base):
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__tablename__ = "export_tasks"
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id = Column(Integer, primary_key=True)
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batch_id = Column(Integer, ForeignKey("scoring_batches.id"), nullable=False)
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project_id = Column(Integer, ForeignKey("projects.id"), nullable=True)
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kind = Column(String(20), nullable=False)
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path = Column(String(1200), nullable=True)
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status = Column(String(40), default="queued")
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error = Column(Text, default="")
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created_at = Column(DateTime(timezone=True), default=now)
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class AppSetting(Base):
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__tablename__ = "app_settings"
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key = Column(String(100), primary_key=True)
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encrypted_value = Column(LargeBinary, nullable=False)
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updated_at = Column(DateTime(timezone=True), default=now)
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class AuditLog(Base):
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__tablename__ = "audit_logs"
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id = Column(Integer, primary_key=True)
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action = Column(String(100), nullable=False)
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entity_type = Column(String(100), nullable=False)
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entity_id = Column(Integer, nullable=True)
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details = Column(JSON, default=dict)
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created_at = Column(DateTime(timezone=True), default=now)
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class IndexTask(Base):
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__tablename__ = "index_tasks"
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id = Column(Integer, primary_key=True)
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course_version_id = Column(Integer, ForeignKey("course_versions.id"), nullable=False)
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submission_file_id = Column(Integer, ForeignKey("submission_files.id"), nullable=True)
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kind = Column(String(30), nullable=False)
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status = Column(String(30), nullable=False, default="queued")
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result = Column(JSON, nullable=False, default=dict)
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error = Column(Text, default="")
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created_at = Column(DateTime(timezone=True), default=now)
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updated_at = Column(DateTime(timezone=True), default=now, onupdate=now)
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class Conversation(Base):
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__tablename__ = "conversations"
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id = Column(Integer, primary_key=True)
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title = Column(String(200), nullable=False, default="新会话")
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first_request_id = Column(String(36), nullable=True, unique=True)
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course_version_id = Column(Integer, ForeignKey("course_versions.id"), nullable=True)
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batch_id = Column(Integer, ForeignKey("scoring_batches.id"), nullable=True)
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project_id = Column(Integer, ForeignKey("projects.id"), nullable=True)
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created_at = Column(DateTime(timezone=True), default=now)
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updated_at = Column(DateTime(timezone=True), default=now, onupdate=now)
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class ChatMessage(Base):
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__tablename__ = "chat_messages"
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id = Column(Integer, primary_key=True)
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conversation_id = Column(Integer, ForeignKey("conversations.id"), nullable=False)
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role = Column(String(20), nullable=False)
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content = Column(Text, nullable=False, default="")
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citations = Column(JSON, nullable=False, default=list)
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tool_calls = Column(JSON, nullable=False, default=list)
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created_at = Column(DateTime(timezone=True), default=now)
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class AgentRun(Base):
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__tablename__ = "agent_runs"
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id = Column(Integer, primary_key=True)
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conversation_id = Column(Integer, ForeignKey("conversations.id"), nullable=False)
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status = Column(String(30), nullable=False, default="running")
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error = Column(Text, default="")
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tool_calls = Column(JSON, nullable=False, default=list)
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events = Column(JSON, nullable=False, default=list)
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created_at = Column(DateTime(timezone=True), default=now)
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finished_at = Column(DateTime(timezone=True), nullable=True)
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class PendingAction(Base):
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__tablename__ = "pending_actions"
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id = Column(Integer, primary_key=True)
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conversation_id = Column(Integer, ForeignKey("conversations.id"), nullable=False)
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kind = Column(String(40), nullable=False)
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payload = Column(JSON, nullable=False)
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preview = Column(JSON, nullable=False)
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expected = Column(JSON, nullable=False)
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idempotency_key = Column(String(64), nullable=False, unique=True)
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status = Column(String(30), nullable=False, default="pending")
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result = Column(JSON, nullable=True)
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created_at = Column(DateTime(timezone=True), default=now)
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expires_at = Column(DateTime(timezone=True), nullable=False)
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