adding known users column

app/admin/routes.py

@@ -973,6 +973,7 @@ def admin_instances():
     low_bandwidth = request.cookies.get('low_bandwidth', '0') == '1'
 
     instances = Instance.query.order_by(Instance.domain)
+    user_model = User
 
     if search:
         instances = instances.filter(Instance.domain.ilike(f"%{search}%"))
@@ -987,7 +988,7 @@ def admin_instances():
     return render_template('admin/instances.html', instances=instances,
                            title=_('Instances'), search=search,
                            next_url=next_url, prev_url=prev_url,
-                           low_bandwidth=low_bandwidth,
+                           low_bandwidth=low_bandwidth, user_model=user_model,
                            moderating_communities=moderating_communities(current_user.get_id()),
                            joined_communities=joined_communities(current_user.get_id()),
                            menu_topics=menu_topics(), site=g.site)

app/templates/admin/instances.html

@@ -18,6 +18,7 @@
                <th>Domain</th>
                <th>Software</th>
                <th>Version</th>
+               <th title="{{ _('Known Users') }}">Users</td>
                <th>Posts</th>
                <th>Post Replies</th>
                <th>Communities</th>
@@ -32,6 +33,7 @@
                     <td><a href="https://{{ instance.domain }}" rel="noopener nofollow noindex noreferrer">{{ instance.domain }}</a></td>
                     <td>{{ instance.software  }}</td>
                     <td>{{ instance.version if instance.version }}</td>
+                    <td>{{ len(user_model.query.filter_by(instance_id=instance.id).all()) }}</td>
                     <td>{{ len(instance.posts.all())  }}</td>
                     <td>{{ len(instance.post_replies.all())  }}</td>
                     <td>{{ len(instance.communities.all())  }}</td>