搭建自己的部落格（十四）：簡單的為部落格新增閱讀量
阿新 • • 發佈：2018-11-17
1、變化的部分
2、上程式碼
ul.blog-types,ul.blog-dates { list-style-type: none; } div.blog:not(:last-child) { margin-bottom: 2em; padding-bottom: 1em; border-bottom: 1px solid #eee; } div.blog h3 { margin-top: 0.5em; } div.blog-info p { margin-bottom: 0; } div.blogblog.css-info p span{ margin-right: 10px; } div.blog-info-description { list-style-type: none; margin-bottom: 1em; } ul.blog-info-description li { display: inline-block; margin-right: 1em; } div.paginator { text-align: center; } div.container { max-width: 80%; }
{# 引用模板 #}
{% extends 'base.html' %}
{% load staticfiles %}
{% block header_extends %}
<link rel="stylesheet" href="{% static 'blog/blog.css' %}">
{% endblock %}
{# 標題 #}
{% block title %}
{{ blog.title }}
{% endblock %}
{# 內容#}
{% block content %}
blog_detail.html
{% extends 'base.html' %}
{% load staticfiles %}
{# 標題 #}
{% block title %}
felix Blog
{% endblock %}
{% block header_extends %}
<link rel="stylesheet" href="{% static 'blog/blog.css' %}">
<link rel="stylesheet" href="{% static 'fontawesome-free-5.5.0-web/css/all.min.css' %}">
{% endblock %}
{# 內容#}
{% block content %}
<div class="container">
<div class="row">
<div class="col-md-8">
<div class="card" style="">
<div class="card-header"><h5 class="card-title">{% block blog_type_title %}部落格列表{% endblock %}</h5>
</div>
<div class="card-body">
{% for blog in blogs %}
<div class="blog">
<h3><a href="{% url 'blog_detail' blog.pk %}">{{ blog.title }}</a></h3>
<div class="blog-info">
<p>
{# 新增圖示 #}
<span>
<i class="fas fa-tag"></i>
<a href="{% url 'blogs_with_type' blog.blog_type.pk %}">
{{ blog.blog_type }}
</a>
</span>
<span>
<i class="far fa-clock "></i>
{{ blog.created_time|date:"Y-m-d" }}
</span>
<span>閱讀({{ blog.read_num }})</span>
<p>
</div>
<p>{{ blog.content|safe|truncatechars:30 }}</p>
</div>
{% empty %}
<div class="blog">
<h3>--暫無部落格，敬請期待--</h3>
</div>
{% endfor %}
</div>
</div>
{# 分頁 #}
<div class="paginator">
<ul class="pagination justify-content-center">
{# 首頁 #}
<li class="page-item"><a class="page-link" href="?page=1">首頁</a></li>
{# 上一頁 #}
{% if page_of_blogs.has_previous %}
<li class="page-item"><a class="page-link"
href="?page={{ page_of_blogs.previous_page_number }}">上一頁</a>
</li>
{% else %}
<li class="page-item disabled"><span class="page-link">上一頁</span></li>
{% endif %}
{# 全部頁碼 #}
{% for page_num in page_range %}
{# 添加當前頁高亮顯示 #}
{% if page_num == page_of_blogs.number %}
<li class="page-item active"><span class="page-link">{{ page_num }}</span></li>
{% else %}
<li class="page-item"><a class="page-link"
href="?page={{ page_num }}">{{ page_num }}</a></li>
{% endif %}
{% endfor %}
{# 下一頁 #}
{% if page_of_blogs.has_next %}
<li class="page-item"><a class="page-link"
href="?page={{ page_of_blogs.next_page_number }}">下一頁</a></li>
{% else %}
<li class="page-item disabled"><span class="page-link">下一頁</span></li>
{% endif %}
{# 尾頁 #}
<li class="page-item"><a class="page-link"
href="?page={{ page_of_blogs.paginator.num_pages }}">尾頁</a></li>
</ul>
<p>
一共有 {{ page_of_blogs.paginator.count }}篇部落格，當前{{ page_of_blogs.number }}頁，共{{ page_of_blogs.paginator.num_pages }}頁
</p>
</div>
</div>
<div class="col-md-4">
<div class="card">
<div class="card-header"><h5 class="card-title">部落格分類</h5></div>
<div class="card-body">
<ul class="blog-types">
{% for blog_type in blog_types %}
<li>
<a href="{% url 'blogs_with_type' blog_type.pk %}">{{ blog_type.type_name }}({{ blog_type.blog_count }})</a>
</li>
{% empty %}
<li>暫無分類</li>
{% endfor %}
</ul>
</div>
</div>
<div class="card">
<div class="card-header"><h5 class="card-title">日期歸檔</h5></div>
<div class="card-body">
<ul class="blog-dates">
{% for blog_date,blog_count in blog_dates.items %}
<li>
<a href="{% url 'blogs_with_date' blog_date.year blog_date.month %}">
{{ blog_date|date:'Y年m月' }}({{ blog_count }})
</a>
</li>
{% empty %}
<li>暫無分類</li>
{% endfor %}
</ul>
</div>
</div>
</div>
</div>
</div>
{% endblock %}
{% block js %}
<script>
$(".nav-blog").addClass("active").siblings().removeClass("active");
</script>
{% endblock %}
blog_list.html
from django.contrib import admin from .models import BlogType, Blog # Register your models here. @admin.register(BlogType) class BlogTypeAdmin(admin.ModelAdmin): list_display = ('id', 'type_name') # 需要顯示的列表 @admin.register(Blog) class BlogAdmin(admin.ModelAdmin): list_display = ('title', 'blog_type', 'author','read_num', 'created_time', 'last_updated_time') # 上面的裝飾器和這句相同 # admin.site.register(Blog,BlogAdmin)admin.py
from django.db import models from django.contrib.auth.models import User from ckeditor_uploader.fields import RichTextUploadingField # Create your models here. # 部落格分類 class BlogType(models.Model): type_name = models.CharField(max_length=15) # 部落格分類名稱 def __str__(self): # 顯示標籤名 return self.type_name # 部落格 class Blog(models.Model): title = models.CharField(max_length=50) # 部落格標題 blog_type = models.ForeignKey(BlogType, on_delete=models.DO_NOTHING) # 部落格分類 content = RichTextUploadingField() # 部落格內容，使用富文字編輯 author = models.ForeignKey(User, on_delete=models.DO_NOTHING) # 部落格作者 read_num=models.IntegerField(default=0) created_time = models.DateTimeField(auto_now_add=True) # 部落格建立時間 last_updated_time = models.DateTimeField(auto_now=True) # 部落格更新事件 def __str__(self): # 顯示標題名 return "<Blog:{}>".format(self.title) class Meta: ordering = ['-created_time'] # 定義排序規則，按照建立時間倒序models.py
from django.shortcuts import render_to_response, get_object_or_404 from .models import Blog, BlogType from django.core.paginator import Paginator from django.conf import settings from django.db.models import Count # 分頁部分公共程式碼 def blog_list_common_data(requests, blogs_all_list): paginator = Paginator(blogs_all_list, settings.EACH_PAGE_BLOGS_NUMBER) # 第一個引數是全部內容，第二個是每頁多少 page_num = requests.GET.get('page', 1) # 獲取url的頁面引數（get請求） page_of_blogs = paginator.get_page(page_num) # 從分頁器中獲取指定頁碼的內容 current_page_num = page_of_blogs.number # 獲取當前頁 all_pages = paginator.num_pages if all_pages < 5: page_range = list( range(max(current_page_num - 2, 1), min(all_pages + 1, current_page_num + 3))) # 獲取需要顯示的頁碼 並且剔除不符合條件的頁碼 else: if current_page_num <= 2: page_range = range(1, 5 + 1) elif current_page_num >= all_pages - 2: page_range = range(all_pages - 4, paginator.num_pages + 1) else: page_range = list( range(max(current_page_num - 2, 1), min(all_pages + 1, current_page_num + 3))) # 獲取需要顯示的頁碼 並且剔除不符合條件的頁碼 blog_dates = Blog.objects.dates('created_time', 'month', order='DESC') blog_dates_dict = {} for blog_date in blog_dates: blog_count = Blog.objects.filter(created_time__year=blog_date.year, created_time__month=blog_date.month).count() blog_dates_dict = { blog_date: blog_count } return { 'blogs': page_of_blogs.object_list, 'page_of_blogs': page_of_blogs, 'blog_types': BlogType.objects.annotate(blog_count=Count('blog')), # 新增查詢並新增欄位 'page_range': page_range, 'blog_dates': blog_dates_dict } # 部落格列表 def blog_list(requests): blogs_all_list = Blog.objects.all() # 獲取全部部落格 context = blog_list_common_data(requests, blogs_all_list) return render_to_response('blog/blog_list.html', context) # 根據型別篩選 def blogs_with_type(requests, blog_type_pk): blog_type = get_object_or_404(BlogType, pk=blog_type_pk) blogs_all_list = Blog.objects.filter(blog_type=blog_type) # 獲取全部部落格 context = blog_list_common_data(requests, blogs_all_list) context['blog_type'] = blog_type return render_to_response('blog/blog_with_type.html', context) # 根據日期篩選 def blogs_with_date(requests, year, month): blogs_all_list = Blog.objects.filter(created_time__year=year, created_time__month=month) # 獲取全部部落格 context = blog_list_common_data(requests, blogs_all_list) context['blogs_with_date'] = '{}年{}日'.format(year, month) return render_to_response('blog/blog_with_date.html', context) # 部落格詳情 def blog_detail(requests, blog_pk): blog = get_object_or_404(Blog, pk=blog_pk) if not requests.COOKIES.get('blog_{}_read'.format(blog_pk)): # 處理閱讀量 blog.read_num += 1 blog.save() context = { 'blog': blog, 'previous_blog': Blog.objects.filter(created_time__gt=blog.created_time).last(), 'next_blog': Blog.objects.filter(created_time__lt=blog.created_time).first(), } response=render_to_response('blog/blog_detail.html', context) response.set_cookie('blog_{}_read'.format(blog_pk),'true') return responseviews.py