Move member stats computation to a dedicated method

ihatemoney/models.py

@@ -52,6 +52,26 @@ class Project(db.Model):
 
         return balances
 
+    @property
+    def members_stats(self):
+        """Compute what each member has paid
+
+        :return: one stat dict per member
+        :rtype list:
+        """
+        return [{
+            'member': member,
+            'paid': sum([
+                bill.amount
+                for bill in self.get_member_bills(member.id).all()
+            ]),
+            'spent': sum([
+                bill.pay_each() * member.weight
+                for bill in self.get_bills().all() if member in bill.owers
+            ]),
+            'balance': self.balance[member.id]
+        } for member in self.active_members]
+
     @property
     def uses_weights(self):
         return len([i for i in self.members if i.weight != 1]) > 0

ihatemoney/web.py

@@ -566,22 +566,9 @@ def settle_bill():
 @main.route("/<project_id>/statistics")
 def statistics():
     """Compute what each member has paid and spent and display it"""
-    members_stats = [{
-            'member': member,
-            'paid': sum([
-                bill.amount
-                for bill in g.project.get_member_bills(member.id).all()
-            ]),
-            'spent': sum([
-                bill.pay_each() * member.weight
-                for bill in g.project.get_bills().all() if member in bill.owers
-            ]),
-            'balance': g.project.balance[member.id]
-        } for member in g.project.active_members]
-
     return render_template(
         "statistics.html",
-        members_stats=members_stats,
+        members_stats=g.project.members_stats,
         current_view='statistics',
     )