缓存功能优化

Author: liangliangyy

DjangoBlog/blog_signals.py

@@ -22,7 +22,7 @@
 from django.db.models.signals import post_save
 from django.contrib.auth.signals import user_logged_in, user_logged_out, user_login_failed
 
-from DjangoBlog.utils import cache, send_email, expire_view_cache, get_blog_setting, delete_view_cache
+from DjangoBlog.utils import cache, send_email, expire_view_cache, delete_sidebar_cache, delete_view_cache
 from DjangoBlog.spider_notify import SpiderNotify
 from oauth.models import OAuthUser
 from blog.models import Article, Category, Tag, Links, SideBar, BlogSettings
@@ -103,7 +103,8 @@ def model_post_save_callback(sender, instance, created, raw, using, update_field
             cache.delete('seo_processor')
         comment_cache_key = 'article_comments_{id}'.format(id=instance.article.id)
         cache.delete(comment_cache_key)
-        delete_view_cache(instance.author.username)
+        delete_sidebar_cache(instance.author.username)
+        delete_view_cache('article_comments', [str(instance.article.pk)])
 
         _thread.start_new(send_comment_email, (instance,))
 
@@ -116,5 +117,5 @@ def model_post_save_callback(sender, instance, created, raw, using, update_field
 def user_auth_callback(sender, request, user, **kwargs):
     if user and user.username:
         logger.info(user)
-        delete_view_cache(user.username)
+        delete_sidebar_cache(user.username)
         cache.clear()

DjangoBlog/utils.py

@@ -42,7 +42,6 @@ def get_md5(str):
 def cache_decorator(expiration=3 * 60):
     def wrapper(func):
         def news(*args, **kwargs):
-            key = ''
             try:
                 view = args[0]
                 key = view.get_cache_key()
@@ -57,11 +56,17 @@ def news(*args, **kwargs):
             value = cache.get(key)
             if value:
                 # logger.info('cache_decorator get cache:%s key:%s' % (func.__name__, key))
-                return value
+                if repr(value) == 'default':
+                    return None
+                else:
+                    return value
             else:
                 logger.info('cache_decorator set cache:%s key:%s' % (func.__name__, key))
                 value = func(*args, **kwargs)
-                cache.set(key, value, expiration)
+                if not value:
+                    cache.set(key, 'default', expiration)
+                else:
+                    cache.set(key, value, expiration)
                 return value
 
         return news
@@ -246,10 +251,16 @@ def save_user_avatar(url):
         return url
 
 
-def delete_view_cache(username):
+def delete_sidebar_cache(username):
     from django.core.cache.utils import make_template_fragment_key
     from blog.models import LINK_SHOW_TYPE
     keys = (make_template_fragment_key('sidebar', [username + x[0]]) for x in LINK_SHOW_TYPE)
     for k in keys:
         logger.info('delete sidebar key:' + k)
         cache.delete(k)
+
+
+def delete_view_cache(prefix, keys):
+    from django.core.cache.utils import make_template_fragment_key
+    key = make_template_fragment_key(prefix, keys)
+    cache.delete(key)

accounts/tests.py

@@ -1,7 +1,7 @@
 from django.test import Client, RequestFactory, TestCase
 from blog.models import Article, Category, Tag
 from django.contrib.auth import get_user_model
-from DjangoBlog.utils import get_current_site
+from DjangoBlog.utils import delete_view_cache, delete_sidebar_cache
 import datetime
 from accounts.models import BlogUser
 from django.urls import reverse
@@ -59,7 +59,7 @@ def test_validate_register(self):
         user.is_superuser = True
         user.is_staff = True
         user.save()
-        delete_view_cache(user.username)
+        delete_sidebar_cache(user.username)
         category = Category()
         category.name = "categoryaaa"
         category.created_time = datetime.datetime.now()

blog/models.py

@@ -117,20 +117,20 @@ def comment_list(self):
             return value
         else:
             comments = self.comment_set.filter(is_enable=True)
-            cache.set(cache_key, comments)
+            cache.set(cache_key, comments, 60 * 100)
             logger.info('set article comments:{id}'.format(id=self.id))
             return comments
 
     def get_admin_url(self):
         info = (self._meta.app_label, self._meta.model_name)
         return reverse('admin:%s_%s_change' % info, args=(self.pk,))
 
-    @cached_property
+    @cache_decorator(expiration=60 * 100)
     def next_article(self):
         # 下一篇
         return Article.objects.filter(id__gt=self.id, status='p').order_by('id').first()
 
-    @cached_property
+    @cache_decorator(expiration=60 * 100)
     def prev_article(self):
         # 前一篇
         return Article.objects.filter(id__lt=self.id, status='p').first()

blog/views.py

@@ -87,6 +87,7 @@ class IndexView(ArticleListView):
     '''
     首页
     '''
+    # 友情链接类型
     link_type = 'i'
 
     def get_queryset_data(self):

oauth/oauthmanager.py

@@ -20,7 +20,7 @@
 import json
 import logging
 import urllib.parse
-from DjangoBlog.utils import parse_dict_to_url
+from DjangoBlog.utils import parse_dict_to_url, cache_decorator
 
 logger = logging.getLogger(__name__)
 
@@ -426,6 +426,7 @@ def get_oauth_userinfo(self):
             return user
 
 
+@cache_decorator(expiration=100 * 60)
 def get_oauth_apps():
     configs = OAuthConfig.objects.filter(is_enable=True).all()
     if not configs:
@@ -438,7 +439,8 @@ def get_oauth_apps():
 
 def get_manager_by_type(type):
     applications = get_oauth_apps()
-    finds = list(filter(lambda x: x.ICON_NAME.lower() == type.lower(), applications))
-    if finds:
-        return finds[0]
+    if applications:
+        finds = list(filter(lambda x: x.ICON_NAME.lower() == type.lower(), applications))
+        if finds:
+            return finds[0]
     return None

oauth/templatetags/oauth_tags.py

@@ -23,12 +23,15 @@
 @register.inclusion_tag('oauth/oauth_applications.html')
 def load_oauth_applications(request):
     applications = get_oauth_apps()
-    baseurl = reverse('oauth:oauthlogin')
-    path = request.get_full_path()
+    if applications:
+        baseurl = reverse('oauth:oauthlogin')
+        path = request.get_full_path()
 
-    apps = list(map(lambda x: (x.ICON_NAME,
-                               '{baseurl}?type={type}&next_url={next}'
-                               .format(baseurl=baseurl, type=x.ICON_NAME, next=path)), applications))
+        apps = list(map(lambda x: (x.ICON_NAME,
+                                   '{baseurl}?type={type}&next_url={next}'
+                                   .format(baseurl=baseurl, type=x.ICON_NAME, next=path)), applications))
+    else:
+        apps = []
     return {
         'apps': apps
     }

templates/blog/article_detail.html

@@ -51,8 +51,7 @@ <h3 class="assistive-text">文章导航</h3>
         </div><!-- #content -->
         {% if article.comment_status == "o" and OPEN_SITE_COMMENT %}
 
-            {% comment %}{% load comments_tags %}
-                {% load_post_comment article from %}{% endcomment %}
+
             {% include 'comments/tags/comment_list.html' %}
             {% if user.is_authenticated %}
                 {% include 'comments/tags/post_comment.html' %}

templates/blog/tags/article_info.html

@@ -1,4 +1,5 @@
 {% load blog_tags %}
+{% load cache %}
 <article id="post-{{ article.pk }} "
          class="post-{{ article.pk }} post type-post status-publish format-standard hentry">
     <header class="entry-header">
@@ -31,7 +32,9 @@ <h1 class="entry-title">
         <br/>
         {% if article.type == 'a' %}
             {% if not isindex %}
-                {% load_breadcrumb article %}
+                {% cache 36000 breadcrumb article.pk %}
+                    {% load_breadcrumb article %}
+                {% endcache %}
             {% endif %}
         {% endif %}
     </header><!-- .entry-header -->

templates/blog/tags/article_meta_info.html

@@ -1,29 +1,33 @@
 {% load blog_tags %}
-<footer class="entry-meta">
-    本条目发布于<a href="{{ article.get_absolute_url }}" title="{% datetimeformat article.created_time %}"
-             itemprop="datePublished" content="{% datetimeformat article.created_time %}"
-             rel="bookmark">
+{% load cache %}
+{% with article.id|add:user.is_authenticated as cachekey %}
+    {% cache 36000 metainfo cachekey %}
+        <footer class="entry-meta">
+            本条目发布于<a href="{{ article.get_absolute_url }}" title="{% datetimeformat article.created_time %}"
+                     itemprop="datePublished" content="{% datetimeformat article.created_time %}"
+                     rel="bookmark">
 
-    <time class="entry-date updated"
-          datetime="{{ article.created_time }}">
-        {% datetimeformat article.created_time %}</time>
-</a>
-    {% if article.type == 'a' %}
-        。属于<a href="{{ article.category.get_absolute_url }}" rel="category tag">{{ article.category.name }}</a>分类，
-        {% if article.tags.all %}
-            被贴了
+            <time class="entry-date updated"
+                  datetime="{{ article.created_time }}">
+                {% datetimeformat article.created_time %}</time>
+        </a>
+            {% if article.type == 'a' %}
+                。属于<a href="{{ article.category.get_absolute_url }}" rel="category tag">{{ article.category.name }}</a>
+                分类，
+                {% if article.tags.all %}
+                    被贴了
 
-            {% for t in article.tags.all %}
-                <a href="{{ t.get_absolute_url }}" rel="tag">{{ t.name }}</a>
-                {% if t != article.tags.all.last %}
-                    ，
-                {% endif %}
-            {% endfor %}
+                    {% for t in article.tags.all %}
+                        <a href="{{ t.get_absolute_url }}" rel="tag">{{ t.name }}</a>
+                        {% if t != article.tags.all.last %}
+                            ，
+                        {% endif %}
+                    {% endfor %}
 
-            标签。
-        {% endif %}
-    {% endif %}
-    <span class="by-author">作者是
+                    标签。
+                {% endif %}
+            {% endif %}
+            <span class="by-author">作者是
         <span class="author vcard">
             <a class="url fn n" href="{{ article.author.get_absolute_url }}"
                title="查看所有由{{ article.author.username }}发布的文章"
@@ -37,8 +41,11 @@
             </span>
     </a>
         </span>。
-        {% if user.is_authenticated %}
-            <a href="{{ article.get_admin_url }}">编辑</a>
-        {% endif %}
+                {% if user.is_authenticated %}
+                    <a href="{{ article.get_admin_url }}">编辑</a>
+                {% endif %}
     </span>
-</footer><!-- .entry-meta -->
+        </footer><!-- .entry-meta -->
+
+    {% endcache %}
+{% endwith %}