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app/models/submission.py

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+from sqlalchemy import Column, Integer, DateTime, ForeignKey, String, Float, Boolean, Index
+from sqlalchemy.orm import relationship
+from sqlalchemy.dialects.postgresql import JSONB, UUID
+from datetime import datetime
+import uuid
+from app.models.base import BaseModel
+
+
+class Submission(BaseModel):
+    __tablename__ = "submissions"
+
+    form_id = Column(Integer, ForeignKey("forms.id", ondelete="CASCADE"))
+    submission_uuid = Column(UUID(as_uuid=True), default=uuid.uuid4, unique=True, nullable=False, index=True)
+    submission_data = Column(JSONB, nullable=False)  # переименовано с data
+    submission_metadata = Column(JSONB, default={})  # переименовано с metadata
+    status = Column(String(50), default="completed")
+    submitted_at = Column(DateTime, default=datetime.utcnow, index=True)
+    submitted_by = Column(Integer, nullable=True)
+
+    # Для аналитики
+    completion_time_seconds = Column(Float, nullable=True)
+    referrer = Column(String(500))
+
+    # Relationships
+    form = relationship("Form", back_populates="submissions")
+    audit_logs = relationship("SubmissionAuditLog", back_populates="submission")
+
+    __table_args__ = (
+        Index('ix_submissions_data_gin', submission_data, postgresql_using='gin'),
+        Index('ix_submissions_metadata_gin', submission_metadata, postgresql_using='gin'),
+        Index('ix_submissions_form_status', 'form_id', 'status'),
+        Index('ix_submissions_date_status', 'submitted_at', 'status'),
+        Index('ix_submissions_created_at', 'created_at'),
+    )
+
+
+class SubmissionAuditLog(BaseModel):
+    __tablename__ = "submission_audit_logs"
+
+    submission_id = Column(Integer, ForeignKey("submissions.id", ondelete="CASCADE"))
+    action = Column(String(50))
+    changed_data = Column(JSONB)
+    ip_address = Column(String(45))
+    user_agent = Column(String(500))
+
+    submission = relationship("Submission", back_populates="audit_logs")
+
+    __table_args__ = (
+        Index('ix_audit_submission', 'submission_id'),
+        Index('ix_audit_created_at', 'created_at'),
+    )