created face.py so search / ai .py can use new face linking tables

face.py

@@ -0,0 +1,29 @@
+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 )
+    face = db.Column( db.LargeBinary )
+
+    def __repr__(self):
+        return f"<id: {self.id}, face={self.face}"
+
+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 )
+
+    def __repr__(self):
+        return f"<face_id: {self.face_id}, file_eid={self.file_eid}"
+
+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 )
+
+    def __repr__(self):
+        return f"<face_id: {self.face_id}, refimg_id={self.refimg_id}"
+