Refactors block button for query efficiency

bookwyrm/templates/preferences/blocks.html

@@ -18,7 +18,7 @@
             <a href="{{ user.local_path }}">{% include 'snippets/avatar.html' with user=user %} {{ user.display_name }}</a>
         </p>
         <p class="mr-2">
-            {% include 'snippets/block_button.html' with user=user %}
+            {% include 'snippets/block_button.html' with user=user blocks=True %}
         </p>
     </li>
 {% endfor %}

bookwyrm/templates/snippets/block_button.html

@@ -1,5 +1,5 @@
 {% load i18n %}
-{% if not user in request.user.blocks.all %}
+{% if not blocks %}
 <form name="blocks" method="post" action="/block/{{ user.id }}">
     {% csrf_token %}
     <button class="button is-danger is-light is-small {{ class }}" type="submit">{% trans "Block" %}</button>

bookwyrm/templates/snippets/follow_button.html

@@ -1,7 +1,7 @@
 {% load i18n %}
 {% if request.user == user or not request.user.is_authenticated %}
 {% elif user in request.user.blocks.all %}
-{% include 'snippets/block_button.html' %}
+{% include 'snippets/block_button.html' with blocks=True %}
 {% else %}
 
 <div class="field{% if not minimal %} has-addons{% else %} mb-0{% endif %}">

bookwyrm/templates/snippets/status/status_options.html

@@ -39,7 +39,7 @@
     {% include 'snippets/report_button.html' with user=status.user status=status %}
 </li>
 <li role="menuitem" class="dropdown-item p-0">
-    {% include 'snippets/block_button.html' with user=status.user class="is-fullwidth" %}
+    {% include 'snippets/block_button.html' with user=status.user class="is-fullwidth" blocks=False %}
 </li>
 {% endif %}
 {% endblock %}

bookwyrm/templates/snippets/user_options.html

@@ -16,6 +16,6 @@
     {% include 'snippets/report_button.html' with user=user class="is-fullwidth" %}
 </li>
 <li role="menuitem">
-    {% include 'snippets/block_button.html' with user=user class="is-fullwidth" %}
+    {% include 'snippets/block_button.html' with user=user class="is-fullwidth" blocks=False %}
 </li>
 {% endblock %}

bookwyrm/views/user.py

@@ -59,10 +59,15 @@ class User(View):
                 break
 
         # user's posts
-        activities = privacy_filter(
+        activities = (
+            privacy_filter(
                 request.user,
                 user.status_set.select_subclasses(),
             )
+            .select_related("reply_parent")
+            .prefetch_related("mention_books", "mention_users")
+        )
+
         paginated = Paginator(activities, PAGE_LENGTH)
         goal = models.AnnualGoal.objects.filter(
             user=user, year=timezone.now().year