缓存优化

DjangoBlog/feeds.py

@@ -17,7 +17,7 @@ from django.contrib.syndication.views import Feed
 from blog.models import Article
 from django.conf import settings
 from django.utils.feedgenerator import Rss201rev2Feed
-from DjangoBlog.common_markdown import common_markdown
+from DjangoBlog.utils import common_markdown
 from django.contrib.auth import get_user_model
 from django.contrib.auth.models import User
 from django.contrib.sites.models import Site

DjangoBlog/utils.py

@@ -5,20 +5,42 @@
 """
 @version: ??
 @author: liangliangyy
-@license: MIT Licence 
+@license: MIT Licence
 @contact: liangliangyy@gmail.com
 @site: https://www.lylinux.org/
 @software: PyCharm
-@file: common_markdown.py
-@time: 2017/1/14 上午2:30
+@file: utils.py
+@time: 2017/1/19 上午2:30
 """
-
+from django.core.cache import cache
+from hashlib import md5
 import mistune
 from pygments import highlight
 from pygments.lexers import get_lexer_by_name
 from pygments.formatters import html
 
 
+def cache_decorator(expiration=3 * 60):
+    def wrapper(func):
+        def news(*args, **kwargs):
+            unique_str = repr((func, args, kwargs))
+            m = md5(unique_str.encode('utf-8'))
+            key = m.hexdigest()
+            value = cache.get(key)
+            if value:
+                print('get key: ' + key)
+                return value
+            else:
+                print('set key:' + key)
+                value = func(*args, **kwargs)
+                cache.set(key, value, expiration)
+                return value
+
+        return news
+
+    return wrapper
+
+
 def block_code(text, lang, inlinestyles=False, linenos=False):
     if not lang:
         text = text.strip()
@@ -40,6 +62,9 @@ def block_code(text, lang, inlinestyles=False, linenos=False):
 
 
 class BlogMarkDownRenderer(mistune.Renderer):
+    def image(self, src, title, text):
+        html = super.im
+
     def block_code(self, text, lang):
         # renderer has an options
         inlinestyles = self.options.get('inlinestyles')

blog/context_processors.py

@@ -14,17 +14,25 @@
 """
 from .models import Category, Article, Tag
 from django.conf import settings
+from django.core.cache import cache
 
 
 def seo_processor(requests):
-    return {
-        'SITE_NAME': settings.SITE_NAME,
-        'SHOW_GOOGLE_ADSENSE': settings.SHOW_GOOGLE_ADSENSE,
-        'SITE_SEO_DESCRIPTION': settings.SITE_SEO_DESCRIPTION,
-        'SITE_DESCRIPTION': settings.SITE_DESCRIPTION,
-        'SITE_KEYWORDS': settings.SITE_SEO_KEYWORDS,
-        'SITE_BASE_URL': 'http://' + requests.get_host() + '/',
-        'ARTICLE_SUB_LENGTH': settings.ARTICLE_SUB_LENGTH,
-        'nav_category_list': Category.objects.all(),
-        'nav_pages': Article.objects.filter(type='p', status='p')
-    }
+    key = 'seo_processor'
+    value = cache.get(key)
+    if value:
+        return value
+    else:
+        value = {
+            'SITE_NAME': settings.SITE_NAME,
+            'SHOW_GOOGLE_ADSENSE': settings.SHOW_GOOGLE_ADSENSE,
+            'SITE_SEO_DESCRIPTION': settings.SITE_SEO_DESCRIPTION,
+            'SITE_DESCRIPTION': settings.SITE_DESCRIPTION,
+            'SITE_KEYWORDS': settings.SITE_SEO_KEYWORDS,
+            'SITE_BASE_URL': 'https://' + requests.get_host() + '/',
+            'ARTICLE_SUB_LENGTH': settings.ARTICLE_SUB_LENGTH,
+            'nav_category_list': Category.objects.all(),
+            'nav_pages': Article.objects.filter(type='p', status='p')
+        }
+        cache.set(key, value, 60 * 60 * 10)
+        return value

blog/models.py

@@ -5,9 +5,32 @@ from django.conf import settings
 from uuslug import slugify
 from DjangoBlog.spider_notify import sipder_notify
 from django.contrib.sites.models import Site
+from DjangoBlog.utils import cache_decorator
+from django.utils.functional import cached_property
+
+class BaseModel(models.Model):
+    def save(self, *args, **kwargs):
+        super().save(*args, **kwargs)
+
+        if 'update_fields' in kwargs and len(kwargs['update_fields']) == 1 and kwargs['update_fields'][0] == 'views':
+            return
+        try:
+            notify = sipder_notify()
+            notify_url = self.get_full_url()
+            notify.baidu_notify(notify_url)
+        except Exception as ex:
+            print(ex)
+
+    def get_full_url(self):
+        site = Site.objects.get_current().domain
+        url = "https://{site}{path}".format(site=site, path=self.get_absolute_url())
+        return url
+
+    class Meta:
+        abstract = True
 
 
-class Article(models.Model):
+class Article(BaseModel):
     """文章"""
     STATUS_CHOICES = (
         ('d', '草稿'),
@@ -57,6 +80,7 @@ class Article(models.Model):
             'slug': self.slug
         })
 
+    @cache_decorator(60 * 60 * 10)
     def get_category_tree(self):
         names = []
 
@@ -73,17 +97,20 @@ class Article(models.Model):
         if not self.slug or self.slug == 'no-slug' or not self.id:
             # Only set the slug when the object is created.
             self.slug = slugify(self.title)
+            """
             try:
                 notify = sipder_notify()
                 notify.notify(self.get_full_url())
             except Exception as e:
                 print(e)
+            """
         super().save(*args, **kwargs)
 
     def viewed(self):
         self.views += 1
         self.save(update_fields=['views'])
 
+    @cache_decorator(60 * 60 * 10)
     def comment_list(self):
         comments = self.comment_set.all()
         parent_comments = comments.filter(parent_comment=None)
@@ -92,10 +119,15 @@ class Article(models.Model):
         info = (self._meta.app_label, self._meta.model_name)
         return reverse('admin:%s_%s_change' % info, args=(self.pk,))
 
-    def get_full_url(self):
-        site = Site.objects.get_current().domain
-        article_url = "https://{site}{path}".format(site=site, path=self.get_absolute_url())
-        return article_url
+    @cached_property
+    def next_article(self):
+        # 下一篇
+        return Article.objects.filter(id__gt=self.id, status=0).order_by('id').first()
+
+    @cached_property
+    def prev_article(self):
+        # 前一篇
+        return Article.objects.filter(id__lt=self.id, status=0).first()
 
 
 '''
@@ -162,7 +194,7 @@ class BlogPage(models.Model):
 '''
 
 
-class Category(models.Model):
+class Category(BaseModel):
     """文章分类"""
     name = models.CharField('分类名', max_length=30)
     created_time = models.DateTimeField('创建时间', auto_now_add=True)
@@ -180,16 +212,8 @@ class Category(models.Model):
     def __str__(self):
         return self.name
 
-    def save(self, *args, **kwargs):
-        try:
-            notify = sipder_notify()
-            notify.notify(self.get_absolute_url())
-        except Exception as e:
-            print(e)
-        super().save(*args, **kwargs)
-
 
-class Tag(models.Model):
+class Tag(BaseModel):
     """文章标签"""
     name = models.CharField('标签名', max_length=30)
     created_time = models.DateTimeField('创建时间', auto_now_add=True)
@@ -201,6 +225,7 @@ class Tag(models.Model):
     def get_absolute_url(self):
         return reverse('blog:tag_detail', kwargs={'tag_name': self.name})
 
+    @cache_decorator(60 * 60 * 10)
     def get_article_count(self):
         return Article.objects.filter(tags__name=self.name).distinct().count()
 
@@ -209,14 +234,6 @@ class Tag(models.Model):
         verbose_name = "标签"
         verbose_name_plural = verbose_name
 
-    def save(self, *args, **kwargs):
-        try:
-            notify = sipder_notify()
-            notify.notify(self.get_absolute_url())
-        except Exception as e:
-            print(e)
-        super().save(*args, **kwargs)
-
 
 class Links(models.Model):
     """友情链接"""

blog/templatetags/blog_tags.py

@@ -49,7 +49,7 @@ def datetimeformat(data):
 @register.filter(is_safe=True)
 @stringfilter
 def custom_markdown(content):
-    from DjangoBlog.common_markdown import common_markdown
+    from DjangoBlog.utils import common_markdown
     return mark_safe(common_markdown.get_markdown(content))
 
 

blog/views.py

@@ -74,17 +74,12 @@ class ArticleDetailView(DetailView):
         obj = super(ArticleDetailView, self).get_object()
         obj.viewed()
         # obj.body = markdown2.markdown(obj.body)
+        self.object = obj
         return obj
 
     def get_context_data(self, **kwargs):
         articleid = int(self.kwargs[self.pk_url_kwarg])
 
-        def get_article(id):
-            try:
-                return Article.objects.get(pk=id)
-            except ObjectDoesNotExist:
-                return None
-
         comment_form = CommentForm()
         u = self.request.user
 
@@ -102,10 +97,9 @@ class ArticleDetailView(DetailView):
         kwargs['form'] = comment_form
         kwargs['article_comments'] = article_comments
         kwargs['comment_count'] = len(article_comments) if article_comments else 0;
-        next_article = get_article(articleid + 1)
-        prev_article = get_article(articleid - 1)
-        kwargs['next_article'] = next_article
-        kwargs['prev_article'] = prev_article
+
+        kwargs['next_article'] = self.object.next_article
+        kwargs['prev_article'] = self.object.prev_article
 
         return super(ArticleDetailView, self).get_context_data(**kwargs)
 

templates/blog/tags/article_meta_info.html

@@ -23,17 +23,20 @@
             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"
-                                                             rel="author">
-        <span itemprop="author" itemscope itemtype="http://schema.org/Person">
+    <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"
+               rel="author">
+            <span itemprop="author" itemscope itemtype="http://schema.org/Person">
 
-<span itemprop="name">
+            <span itemprop="name" itemprop="publisher">
 
-        {{ article.author.username }}
-</span></span>
-    </a></span>。
+            {{ article.author.username }}
+        </span>
+            </span>
+    </a>
+        </span>。
         {% if user.is_authenticated %}
             <a href="{{ article.get_admin_url }}">编辑</a>
         {% endif %}

templates/share_layout/base.html

@@ -1,4 +1,5 @@
 {% load static %}
+{% load cache %}
 <!DOCTYPE html>
 <!--[if IE 7]>
 <html class="ie ie7" lang="zh-CN" prefix="og: http://ogp.me/ns# fb: http://ogp.me/ns/fb# article: http://ogp.me/ns/article#">
@@ -53,16 +54,20 @@
             <h2 class="site-description">{{ SITE_DESCRIPTION }}</h2>
         </hgroup>
 
+        {% cache 36000 sidebar %}
+            {% include 'share_layout/nav.html' %}
+        {% endcache %}
 
-        {% include 'share_layout/nav.html' %}
     </header><!-- #masthead -->
     <div id="main" class="wrapper">
         {% block content %}
         {% endblock %}
 
-        {% block sidebar %}
-        {% endblock %}
+        {% cache 36000 nav %}
+            {% block sidebar %}
 
+            {% endblock %}
+        {% endcache %}
     </div><!-- #main .wrapper -->
     {% include 'share_layout/footer.html' %}
 </div><!-- #page -->