Use global way to get titles

pelicanconf.py

@@ -108,7 +108,9 @@ from plugins import filters
 JINJA_FILTERS = {
     "datetime": filters.format_datetime,
     "category_find": filters.category_find,
-    "limit": filters.limit
+    "limit": filters.limit,
+    "get_title": filters.get_title,
+    "get_html_title": filters.get_html_title
 }
 
 JINJA_ENVIRONMENT = {

plugins/filters.py

@@ -1,6 +1,10 @@
 import iso8601
 
 
+def get_attribute(cls, attr, default=None):
+    return getattr(cls, attr, default)
+
+
 def format_datetime(value):
     return iso8601.parse_date(str(value)).strftime("%x")
 
@@ -19,3 +23,11 @@ def limit(line, length):
         return " ".join(line.split(" ")[:length]) + '...'
     elif isinstance(line, list):
         return line[:length]
+
+
+def get_title(instance):
+    return get_attribute(instance, 'title') or (hasattr(instance, 'page') and get_attribute(instance.page, 'name')) or get_attribute(instance, 'name') or ''
+
+
+def get_html_title(instance):
+    return get_attribute(instance, 'html_title') or get_title(instance)

theme/templates/article.html

@@ -1,7 +1,7 @@
 {% extends "base.html" %}
 
 {% block htmltitle %}
-  {{ article.html_title or article.title }}
+  {{ article|get_html_title }}
 {% endblock %}
 
 {% block metadata %}

theme/templates/blog.html

@@ -1,7 +1,7 @@
 {% extends "base.html" %}
 
 {% block htmltitle %}
-  {{ article.title }}
+  {{ article|get_html_title }}
 {% endblock %}
 
 {% block metadata %}

theme/templates/category.html

@@ -1,7 +1,7 @@
 {% extends "base.html" %}
 
 {% block htmltitle %}
-  {{ category.name|title }}
+  {{ category|get_html_title }}
 {% endblock %}
 
 {% block metadata %}
@@ -30,7 +30,7 @@
               </div>
               <div class="media-body">
                 <a href="/{{ article.url }}">
-                  <h4 class="media-heading">{{ article.title }}</h4>
+                  <h4 class="media-heading">{{ article|get_title }}</h4>
                 </a>
                 <p>{{ article.summary|striptags|e }}</p>
               </div>

theme/templates/extras/header.html

@@ -1,7 +1,7 @@
 <header id="header" class="bg-primary image" data-image="{{ instance.image or (instance.page and instance.page.image) }}">
   <div class="header-content">
     <div class="header-content-inner">
-      <h1>{{ instance.title or instance.name or (instance.page and instance.page.name) }}</h1>
+      <h1>{{ instance|get_title }}</h1>
       <hr>
     </div>
   </div>

theme/templates/page-home.html

@@ -1,7 +1,7 @@
 {% extends "base.html" %}
 
 {% block htmltitle %}
-  {{ page.title }}
+  {{ page|get_html_title }}
 {% endblock %}
 
 {% block metadata %}

theme/templates/page.html

@@ -1,7 +1,7 @@
 {% extends "base.html" %}
 
 {% block htmltitle %}
-  {{ page.html_title or page.title }}
+  {{ page|get_html_title }}
 {% endblock %}
 
 {% block metadata %}

theme/templates/projects.html

@@ -1,7 +1,7 @@
 {% extends "base.html" %}
 
 {% block htmltitle %}
-  {{ article.title }}
+  {{ article|get_html_title }}
 {% endblock %}
 
 {% block metadata %}
@@ -23,7 +23,7 @@
       <div class="container">
         <div class="btn-group">
           {% if article.download_link %}
-            <a class="btn btn-primary btn-xl" href="{{ article.download_link }}">Download {{ article.title }}</a>
+            <a class="btn btn-primary btn-xl" href="{{ article.download_link }}">Download {{ article|get_title }}</a>
           {% endif %}
 
           {% if article.repo %}