P5-4794 optimize listprice code and fix wallpaper listprice

api/models/product.py

@@ -4,7 +4,6 @@ from datetime import datetime
 from api.extensions import db
 from flask_sqlalchemy import BaseQuery
 from sqlalchemy import or_
-from sqlalchemy.orm import joinedload
 
 
 class Product(db.Model):
@@ -99,9 +98,6 @@ class PrintProductQuery(BaseQuery):
     def framed_prints(self):
         return self.filter(PrintProduct.groupid == 8)
 
-    def with_relations(self):
-        return self.options(joinedload("*"))
-
 
 class PrintProduct(db.Model):
 
@@ -115,4 +111,4 @@ class PrintProduct(db.Model):
     )
     groupid = db.Column(db.Integer, nullable=False)
 
-    product = db.relationship("Product", backref="printproducts")
+    product = db.relationship("Product", backref="printproducts", lazy="joined")