renamed AI_Model to AIModel for consistency, added it as a functioning drop-down select on settings page, added face_distance to db and code, put face_distance model_used into all classes ready for use

face.py

@@ -2,7 +2,6 @@ from main import db, app, ma
 from sqlalchemy import Sequence
 from sqlalchemy.exc import SQLAlchemyError
 
-
 class Face(db.Model):
     __tablename__ = "face"
     id = db.Column(db.Integer, db.Sequence('face_id_seq'), primary_key=True )
@@ -17,6 +16,7 @@ class FaceFileLink(db.Model):
     __tablename__ = "face_file_link"
     face_id = db.Column(db.Integer, db.ForeignKey("face.id"), primary_key=True )
     file_eid = db.Column(db.Integer, db.ForeignKey("file.eid"), primary_key=True )
+    model_used = db.Column(db.Integer, db.ForeignKey("ai_model.id"), primary_key=True )
 
     def __repr__(self):
         return f"<face_id: {self.face_id}, file_eid={self.file_eid}"
@@ -25,6 +25,8 @@ class FaceRefimgLink(db.Model):
     __tablename__ = "face_refimg_link"
     face_id = db.Column(db.Integer, db.ForeignKey("face.id"), primary_key=True )
     refimg_id = db.Column(db.Integer, db.ForeignKey("refimg.id"), primary_key=True )
+    model_used = db.Column(db.Integer, db.ForeignKey("ai_model.id"), primary_key=True )
+    face_distance = db.Column(db.Integer)
 
     def __repr__(self):
         return f"<face_id: {self.face_id}, refimg_id={self.refimg_id}"