Fix front page stats

This merge request fixes the way the numbers are gathered for the statistics on the front page.

It now shows an accurate picture to the user on the page whether anonymous or not.

Fixes #514 (closed)

beat/web/attestations/models.py

@@ -31,6 +31,7 @@ from datetime import timedelta
 
 from django.conf import settings
 from django.db import models
+from django.db.models import Q
 from django.urls import reverse
 
 from ..algorithms.models import Algorithm
@@ -75,6 +76,17 @@ class AttestationManager(models.Manager):
     def published(self):
         return self.filter(locked=False)
 
+    def for_user(self, user, add_public=False):
+        if user.is_anonymous:
+            return self.published()
+
+        query = Q(experiment__author=user)
+
+        if add_public:
+            query |= Q(locked=False)
+
+        return self.filter(query).distinct()
+
 
 class Attestation(models.Model):