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backend/app/models/export.py

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+"""
+Tool_OCR - Export Rule Model
+User-defined export rules and formatting configurations
+"""
+
+from sqlalchemy import Column, Integer, String, DateTime, Text, ForeignKey, JSON
+from sqlalchemy.orm import relationship
+from datetime import datetime
+
+from app.core.database import Base
+
+
+class ExportRule(Base):
+    """Export rule configuration for customized output formatting"""
+
+    __tablename__ = "paddle_ocr_export_rules"
+
+    id = Column(Integer, primary_key=True, index=True)
+    user_id = Column(Integer, ForeignKey("paddle_ocr_users.id", ondelete="CASCADE"), nullable=False, index=True)
+    rule_name = Column(String(100), nullable=False)
+    description = Column(Text, nullable=True)
+
+    # Rule configuration stored as JSON
+    # {
+    #   "filters": {
+    #     "confidence_threshold": 0.8,
+    #     "filename_pattern": "invoice_*",
+    #     "language": "ch"
+    #   },
+    #   "formatting": {
+    #     "add_line_numbers": true,
+    #     "sort_by_position": true,
+    #     "group_by_filename": false
+    #   },
+    #   "export_options": {
+    #     "include_metadata": true,
+    #     "include_confidence": true,
+    #     "include_bounding_boxes": false
+    #   }
+    # }
+    config_json = Column(JSON, nullable=False)
+
+    # CSS template for PDF export (optional)
+    # Can reference predefined templates: "default", "academic", "business", "report"
+    # Or store custom CSS
+    css_template = Column(Text, nullable=True)
+
+    created_at = Column(DateTime, default=datetime.utcnow, nullable=False)
+    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow, nullable=False)
+
+    # Relationships
+    user = relationship("User", back_populates="export_rules")
+
+    def __repr__(self):
+        return f"<ExportRule(id={self.id}, name='{self.rule_name}', user_id={self.user_id})>"