Убрал дублирование заголовков + теперь только статьи отображаются

zsite/templates/aldryn_people/includes/people_item.html

@@ -1,4 +1,4 @@
-{% load menu_tags aldryn_people_tags cms_tags i18n thumbnail %}
+{% load menu_tags aldryn_people_tags cms_tags i18n thumbnail query %}
 
 {% show_breadcrumb 2 %}
 
@@ -28,8 +28,9 @@
         {% spaceless %}
             <h2>Статьи</h2>
             <ul class="articles list-unstyled">
-            {% for article in person.blog_post_author.all %}
+            {% query person.blog_post_author categories__id=4 as articles %}
-            {{ article }}
+
+            {% for article in articles %}
             <li><a href="{{ article.get_absolute_url }}">{{ article.title }}</a>
             &nbsp;<small class="date">{{ article.date_published|date:"DATE_FORMAT" }}</small></li>
             {% endfor %}

zsite/templatetags/query.py

@@ -0,0 +1,12 @@
+from django import template
+register = template.Library()
+
+@register.assignment_tag
+def query(qs, **kwargs):
+    """ template tag which allows queryset filtering. Usage:
+          {% query books author=author as mybooks %}
+          {% for book in mybooks %}
+            ...
+          {% endfor %}
+    """
+    return qs.filter(**kwargs)