Show review counts in search results

Fixes #2317

bookwyrm/templates/search/book.html

@@ -1,5 +1,7 @@
 {% extends 'search/layout.html' %}
 {% load i18n %}
+{% load humanize %}
+{% load book_display_tags %}
 
 {% block panel %}
 
@@ -19,8 +21,17 @@
                     </strong>
                 </p>
                 <p>
+                    {% with book_review_count=result|review_count %}
+                    {% blocktrans trimmed count counter=book_review_count with formatted_review_count=book_review_count|intcomma %}
+                    {{ formatted_review_count }} review
+                    {% plural %}
+                    {{ formatted_review_count }} reviews
+                    {% endblocktrans %}
+                    {% endwith %}
+
                     {% if result.first_published_date or result.published_date %}
-                        ({% firstof result.first_published_date.year result.published_date.year %})
+                        {% firstof result.first_published_date.year result.published_date.year as pub_year %}
+                        {% blocktrans %}(published {{ pub_year }}){% endblocktrans %}
                     {% endif %}
                 </p>
             </div>

bookwyrm/templatetags/book_display_tags.py

@@ -1,10 +1,16 @@
 """ template filters """
 from django import template
+from bookwyrm import models
 
 
 register = template.Library()
 
 
+@register.filter(name="review_count")
+def get_review_count(book):
+    """how many reviews?"""
+    return models.Review.objects.filter(deleted=False, book=book).count()
+
 @register.filter(name="book_description")
 def get_book_description(book):
     """use the work's text if the book doesn't have it"""