description 优化

blog/templatetags/blog_tags.py

@@ -68,6 +68,14 @@ def truncatechars_content(content):
     return truncatechars_html(content, settings.ARTICLE_SUB_LENGTH)
 
 
+@register.filter(is_safe=True)
+@stringfilter
+def truncate(content):
+    from django.template.defaultfilters import truncatechars
+
+    return truncatechars(content, 150)
+
+
 @register.inclusion_tag('blog/tags/breadcrumb.html')
 def load_breadcrumb(article):
     """
@@ -178,12 +186,13 @@ def load_pagination_info(page_obj, page_type, tag_name):
             next_url = reverse('blog:category_detail_page', kwargs={'page': next_number, 'category_name': tag_name})
         if page_obj.has_previous():
             previous_number = page_obj.previous_page_number()
-            previous_url = reverse('blog:category_detail_page', kwargs={'page': previous_number, 'category_name': tag_name})
+            previous_url = reverse('blog:category_detail_page',
+                                   kwargs={'page': previous_number, 'category_name': tag_name})
 
     return {
         'previous_url': previous_url,
         'next_url': next_url,
-        'page_obj':page_obj
+        'page_obj': page_obj
     }
 
 

templates/blog/article_detail.html

@@ -4,7 +4,9 @@
     <title>{{ article.title }} | {{ SITE_DESCRIPTION }}</title>
     <meta property="og:type" content="article"/>
     <meta property="og:title" content="{{ article.title }}"/>
-    <meta property="og:description" content="{{ article.body|truncatewords:100 }}"/>
+
+    <meta property="og:description" content="{{ article.body|truncate }}"/>
+
     <meta property="og:url"
           content="{{ article.get_full_url }}"/>
     <meta property="article:published_time" content="{% datetimeformat article.pub_time %}"/>