搭建本身的博客（二十五）：實現簡單的點贊功能

新建立一個app來單獨實現點讚的功能。

一、變化的部分

二、上代碼

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.blog-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%;
}

div.comment-area{
    margin-top: 2em;
}

h3.comment-area-title{
    border-bottom: 1px solid #ccc;
    padding-bottom: 0.4em;
}

div.django-ckeditor-widget {
    width: 100%;
}

div.comment{
    border-bottom: 1px dashed #ccc;
    margin-bottom: 0.5em;
    padding-bottom: 0.5em;
}

div.reply{
    margin-left: 2em;
}

div#reply-content-container{
    display: block;
    border: 1px solid #d1d1d1;
    border-bottom: none;
    background-color: #f8f8f8;
    overflow: hidden;
    padding: 1em 1em 0.5em;
}

p#reply_title{
    border-bottom: 1px dashed #ccc;
    padding-bottom: 0.5em;
}

div.like{
    color: #337ab7;
    cursor: pointer;
    display: inline-block;
    padding: 0.5em 0.2em;
}

div.like .active{
    color: #f22;
}

blog下的blog.css

{# 引用模板 #}
{% extends 'base.html' %}
{% load staticfiles %}
{% load comment_tags %}
{% load likes_tags %}

{% 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' %}">

    {#  處理公式  #}
    <script src='https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js?config=TeX-MML-AM_CHTML'
            async></script>
    <script type="text/javascript" src="{% static "ckeditor/ckeditor-init.js" %}"></script>
    <script type="text/javascript" src="{% static "ckeditor/ckeditor/ckeditor.js" %}"></script>

{% endblock %}


{# 標題 #}
{% block title %}
    {{ blog.title }}
{% endblock %}

{# 內容#}
{% block content %}
    <div class="container">
        <div class="row">
            <div class="col-10 offset-1">
                <ul class="blog-info-description">
                    <h3>{{ blog.title }}</h3>
                    <li>做者：{{ blog.author }}</li>
                    {# 時間過濾器讓時間按照本身須要的格式過濾 #}
                    <li>發佈日期：{{ blog.created_time|date:"Y-m-d H:i:s" }}</li>
                    <li>分類：
                        <a href="{% url 'blogs_with_type' blog.blog_type.pk %}">
                            {{ blog.blog_type }}
                        </a>
                    </li>
                    <li>閱讀({{ blog.get_read_num }})</li>
                    <li>評論({% get_comment_count blog %})</li>
                </ul>
                <div class="blog-content">{{ blog.content|safe }}</div>

                <div class="like"
                     onclick="likeChange(this,'{% get_content_type blog %}',{{ blog.pk }})">
                    <i class="far fa-thumbs-up {% get_like_status blog %}"></i>
                    <span class="liked-num">{% get_like_count blog %}</span>
                    <span>喜歡</span>
                </div>

                <p>上一篇：
                    {% if previous_blog %}
                        <a href="{% url 'blog_detail' previous_blog.pk %}">{{ previous_blog.title }}</a>
                    {% else %}
                        <span>沒有了</span>
                    {% endif %}
                </p>
                <p>下一篇：
                    {% if next_blog %}
                        <a href="{% url 'blog_detail' next_blog.pk %}">{{ next_blog.title }}</a>
                    {% else %}
                        <span>沒有了</span>
                    {% endif %}
                </p>
            </div>
        </div>
        <div class="row">
            <div class="col-10 offset-1">
                <div class="comment-area">
                    <h3 class="comment-area-title">提交評論</h3>
                    {% if user.is_authenticated %}
                        <form id="comment-form" action="{% url 'update_comment' %}" method="post"
                              style="overflow: hidden">
                            {% csrf_token %}
                            <label for="form-control">{{ user.username }},歡迎評論～</label>
                            <div id="reply-content-container" style="display: none;">
                                <p id="reply_title">回覆：</p>
                                <div id="reply-content">

                                </div>
                            </div>
                            {% get_comment_form blog as comment_form %}
                            {% for field in comment_form %}
                                {{ field }}
                            {% endfor %}
                            <span id="comment-error" class="text-danger float-left"></span>
                            <input type="submit" value="評論" class="btn btn-primary float-right">
                        </form>
                    {% else %}
                        您還沒有登陸，登陸以後方可評論
                        {# 提交登陸的時候帶上從哪裏訪問的路徑 #}
                        <a class="btn btn-primary" href="{% url 'login' %}?from={{ request.get_full_path }}">登陸</a>
                        <span> or </span>
                        <a class="btn-danger btn" href="{% url 'register' %}?from={{ request.get_full_path }}">註冊</a>
                    {% endif %}
                </div>
                <div class="-comment-area">
                    <h3 class="comment-area-title">評論列表</h3>
                    <div id="comment-list">
                        {% get_comment_list blog as comments %}
                        {% for comment in comments %}
                            <div id="root-{{ comment.pk }}" class="comment">
                                <span>{{ comment.user.username }}</span>
                                <span>{{ comment.comment_time|date:"Y-m-d H:i:s" }}</span>
                                <div id="comment-{{ comment.pk }}">{{ comment.text|safe }}</div>
                                {# 點贊 #}
                                <div class="like"
                                     onclick="likeChange(this,'{% get_content_type comment %}',{{ comment.pk }})">
                                    <i class="far fa-thumbs-up {% get_like_status comment %}"></i>
                                    <span class="liked-num">{% get_like_count comment %}</span>
                                </div>

                                <a href="javascript:reply({{ comment.pk }})">回覆</a>

                                {% for reply in comment.root_comment.all %}
                                    <div class="reply">
                                        <span>{{ reply.user.username }}</span>
                                        <span>{{ reply.comment_time|date:"Y-m-d H:i:s" }}</span>
                                        <span>回覆：</span><span>{{ reply.reply_to.username }}</span>
                                        <div id="comment-{{ reply.pk }}">{{ reply.text|safe }}</div>
                                        {# 點贊 #}
                                        <div class="like"
                                             onclick="likeChange(this,'{% get_content_type reply %}',{{ reply.pk }})">
                                            <i class="far fa-thumbs-up {% get_like_status reply %}"></i>
                                            <span class="liked-num">{% get_like_count reply %}</span>
                                        </div>

                                        <a href="javascript:reply({{ reply.pk }})">回覆</a>
                                    </div>
                                {% endfor %}
                            </div>
                        {% empty %}
                            <span id="no-comment">暫無評論</span>
                        {% endfor %}
                    </div>
                </div>
            </div>
        </div>
    </div>
{% endblock %}

{% block js %}
    <script>
        // 處理點贊
        function likeChange(obj, content_type, object_id) {
            let is_like = obj.getElementsByClassName('active').length === 0;


            $.ajax({
                url: "{% url 'like_change' %}",
                type: 'GET',
                data: {
                    content_type: content_type,
                    object_id: object_id,
                    is_like: is_like,
                },
                cache: false,
                success: function (data) {
                    console.log(data);
                    if (data['status'] === 'SUCCESS') {
                        // 更新點贊狀態
                        let element = $(obj.getElementsByClassName('fa-thumbs-up'));
                        if (is_like) {
                            element.addClass('active');
                        } else {
                            element.removeClass('active');
                        }
                        // 更新點贊數量
                        let like_num = $(obj.getElementsByClassName('liked-num'));
                        like_num.text(data['liked_num']);

                    } else {
                        alert(data['msg']);
                    }
                },
                error: function (xhr) {
                    console.log(xhr);
                }
            });
        }

        // 處理回覆
        function reply(reply_comment_id) {
            $('#reply_comment_id').val(reply_comment_id);
            let html = $('#comment-' + reply_comment_id).html();

            $('#reply-content').html(html);
            $('#reply-content-container').show();  // 顯示內容


            // 滾動富文本編輯器
            $('html').animate({scrollTop: $('#comment-form').offset().top - 60}, 300, function () {
                // 動畫執行完畢後執行的方法
                // 讓富文本編輯器得到焦點
                CKEDITOR.instances['id_text'].focus();
            });
        }

        function numFormat(num) {
            return ('00' + num).substr(-2);
        }

        function timeFormat(timestamp) {
            let datetime = new Date(timestamp * 1000);
            let year = datetime.getFullYear();
            let month = numFormat(datetime.getMonth() + 1);
            let day = numFormat(datetime.getDate());
            let hour = numFormat(datetime.getHours());
            let minute = numFormat(datetime.getMinutes());
            let second = numFormat(datetime.getSeconds());
            return `${year}-${month}-${day} ${hour}:${minute}:${second}`
        }

        // 提交評論
        $('#comment-form').submit(function () {
            // 獲取錯誤框
            let comment_error = $('#comment-error');
            comment_error.text('');

            // 更新數據到textarea
            CKEDITOR.instances['id_text'].updateElement();
            let comment_text = CKEDITOR.instances['id_text'].document.getBody().getText().trim();
            // 判斷是否爲空
            if (!(CKEDITOR.instances['id_text'].document.getBody().find('img')['$'].length !== 0 || comment_text !== '')) {
                // 顯示錯誤信息
                comment_error.text('評論內容不能爲空');
                return false;
            }
            //異步提交
            $.ajax({
                url: "{% url 'update_comment' %}",
                type: 'POST',
                data: $(this).serialize(),// 序列化表單值
                cache: false, // 關閉緩存
                success: function (data) {
                    let reply_comment = $('#reply_comment_id');
                    if (data['status'] === 'SUCCESS') {
                        console.log(data);
                        //  插入數據
                        //  es6寫法

                        if (reply_comment.val() === '0') {
                            // 插入評論
                            let comment_html = `<div id="root-${data["pk"]}" class="comment">
                                <span>${data["username"]}</span>
                                <span>${timeFormat(data["comment_time"])}</span>
                                <div id="comment-${data["pk"]}">${data["text"]}</div>
                                <a href="javascript:reply(${data["pk"]})">回覆</a>
                            </div>`;

                            $('#comment-list').prepend(comment_html);

                        } else {
                            // 插入回覆

                            let reply_html = `<div class="reply">
                                        <span>${data["username"]}</span>
                                        <span>${timeFormat(data["comment_time"])}</span>
                                        <span>回覆：</span><span>${data["reply_to"]}</span>
                                        <div id="comment-${data["pk"]}">${data["text"]}</div>
                                        <a href="javascript:reply(${data["pk"]})">回覆</a>
                                    </div>`;
                            $('#root-' + data['root_pk']).append(reply_html);

                        }

                        //  清空編輯框的內容
                        CKEDITOR.instances['id_text'].setData('');
                        $('#reply-content-container').hide(); // 回覆完隱藏掉要回復的內容
                        reply_comment.val('0'); // 將回復標誌重置0
                        $('#no-comment').remove(); // 若是有沒回復標誌，清除掉5
                        comment_error.text('評論成功');
                    } else {
                        // 顯示錯誤信息
                        comment_error.text(data['message'])
                    }
                },
                error: function (xhr) {
                    console.log(xhr);
                }
            });
            return false;
        });
    </script>

    <script>
        $(".nav-blog").addClass("active").siblings().removeClass("active");
    </script>
{% endblock %}

blog_detail.html

{% extends 'base.html' %}
{% load staticfiles %}
{% load comment_tags %}
{% load likes_tags %}

{# 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 %}博客列表{% 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>
                                        {# 添加圖標 #}
                                        <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.get_read_num }})</span>
                                        <span>評論({% get_comment_count blog %})</span>
                                        <span>點贊({% get_like_count blog %})</span>
                                    <p>
                                </div>
                                <p>{{ blog.content|safe|truncatechars:30 }}</p>
                            </div>
                        {% empty %}
                            <div class="blog">
                                <h3>--暫無博客，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 %}
                        {# 所有頁碼 #}
                        {% 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 }}篇博客，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">博客分類</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

# -*- coding: utf-8 -*-
# @Time    : 18-11-23 下午5:12
# @Author  : Felix Wang


from django import template
from django.contrib.contenttypes.models import ContentType
from ..models import LikeCount, LikeRecord

# 註冊自定義模板標籤
register = template.Library()


# 獲取評論計數
@register.simple_tag
def get_like_count(obj):
    content_type = ContentType.objects.get_for_model(obj)
    like_count, created = LikeCount.objects.get_or_create(content_type=content_type, object_id=obj.pk)
    return like_count.liked_num


# 獲取評論計數
@register.simple_tag(takes_context=True)
def get_like_status(context, obj):
    content_type = ContentType.objects.get_for_model(obj)
    user = context['user']
    if not user.is_authenticated:
        return ''
    if LikeRecord.objects.filter(content_type=content_type, object_id=obj.pk, user=user).exists():
        return 'active'
    else:
        return ''


@register.simple_tag
def get_content_type(obj):
    content_type = ContentType.objects.get_for_model(obj)
    return content_type.model

likes下的likes_tags.py

from django.db import models
from django.contrib.contenttypes.fields import GenericForeignKey
from django.contrib.contenttypes.models import ContentType
from django.contrib.auth.models import User


# Create your models here.

class LikeCount(models.Model):
    content_type = models.ForeignKey(ContentType, on_delete=models.CASCADE)
    object_id = models.PositiveIntegerField()
    content_object = GenericForeignKey('content_type', 'object_id')

    liked_num = models.IntegerField(default=0)


class LikeRecord(models.Model):
    content_type = models.ForeignKey(ContentType, on_delete=models.CASCADE)
    object_id = models.PositiveIntegerField()
    content_object = GenericForeignKey('content_type', 'object_id')

    user = models.ForeignKey(User, on_delete=models.CASCADE)
    liked_time  = models.DateTimeField(auto_now_add=True)

models.py

# -*- coding: utf-8 -*-
# @Time    : 18-11-23 下午4:25
# @Author  : Felix Wang


from django.urls import path
from . import views

urlpatterns = [
    path('like_change', views.like_change, name='like_change'),
]

likes下的urls.py

from django.shortcuts import render
from .models import LikeCount, LikeRecord
from django.contrib.contenttypes.models import ContentType
from django.http import JsonResponse
from django.db.models import ObjectDoesNotExist


def errorResponse(code, msg):
    data = {
        'status': 'ERROR',
        'code': code,
        'msg': msg,
    }
    return JsonResponse(data)


def successResponse(liked_num):
    data = {
        'status': 'SUCCESS',
        'liked_num': liked_num,
    }
    return JsonResponse(data)


def like_change(requests):
    # 獲取數據
    user = requests.user
    if not user.is_authenticated:
        return errorResponse(400, '你沒有登陸')
    content_type = requests.GET.get('content_type')
    object_id = int(requests.GET.get('object_id'))

    try:
        content_type = ContentType.objects.get(model=content_type)
        model_class = content_type.model_class()
        model_obj = model_class.objects.get(pk=object_id)
    except ObjectDoesNotExist:
        return errorResponse(401, '對象不存在')

    # 處理數據
    if requests.GET.get('is_like') == 'true':
        # 用戶點贊
        like_record, created = LikeRecord.objects.get_or_create(content_type=content_type, object_id=object_id,
                                                                user=user)
        if created:
            # 沒有點贊過
            like_count, created = LikeCount.objects.get_or_create(content_type=content_type, object_id=object_id)
            like_count.liked_num += 1
            like_count.save()
            return successResponse(like_count.liked_num)
        else:
            # 點贊過，不能重複點贊
            return errorResponse(402, '你已經點贊過了')
    else:
        # 用戶取消點贊
        if LikeRecord.objects.filter(content_type=content_type, object_id=object_id, user=user).exists():
            # 有點贊過，取消點贊
            like_record = LikeRecord.objects.get(content_type=content_type, object_id=object_id, user=user)
            like_record.delete()
            # 點贊總數減1
            like_count, created = LikeCount.objects.get_or_create(content_type=content_type, object_id=object_id)
            if not created:
                like_count.liked_num -= 1
                like_count.save()
                return successResponse(like_count.liked_num)
            else:
                return errorResponse(404, '數據錯誤')
        else:
            # 沒有點贊過，不能取消
            return errorResponse(403, '你沒有點贊過')

likes下的biews.py

"""
Django settings for myblog project.

Generated by 'django-admin startproject' using Django 2.1.3.

For more information on this file, see
https://docs.djangoproject.com/en/2.1/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/2.1/ref/settings/
"""

import os

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))

# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/2.1/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 'ea+kzo_5k^6r7micfg@lar1(rfdc08@b4*+w5d11=0mp1p5ngr'

# SECURITY WARNING: don't run with debug turned on in production!2.
DEBUG = True

ALLOWED_HOSTS = ['*']

# Application definition

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'ckeditor',
    'ckeditor_uploader',
    'blog.apps.BlogConfig',  # 將本身建立的app添加到設置中
    'read_statistics.apps.ReadStatisticsConfig',  # 註冊閱讀統計app
    'comment.apps.CommentConfig',  # 註冊評論
    'likes.apps.LikesConfig', # 註冊點贊

]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
    'blog.middleware.mymiddleware.My404',  # 添加本身的中間件
]

ROOT_URLCONF = 'myblog.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [
            os.path.join(BASE_DIR, 'templates'),
        ],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'myblog.wsgi.application'

# Database
# https://docs.djangoproject.com/en/2.1/ref/settings/#databases

DATABASES = {
    # 'default': {
    #     'ENGINE': 'django.db.backends.sqlite3',
    #     'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    # }
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'myblogs',  # 要鏈接的數據庫，鏈接前須要建立好
        'USER': 'root',  # 鏈接數據庫的用戶名
        'PASSWORD': 'felixwang',  # 鏈接數據庫的密碼
        'HOST': '127.0.0.1',  # 鏈接主機，默認本級
        'PORT': 3306  # 端口 默認3306
    }
}

# Password validation
# https://docs.djangoproject.com/en/2.1/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]

# Internationalization
# https://docs.djangoproject.com/en/2.1/topics/i18n/

# LANGUAGE_CODE = 'en-us'
# 語言
LANGUAGE_CODE = 'zh-hans'

# TIME_ZONE = 'UTC'
# 時區
TIME_ZONE = 'Asia/Shanghai'

USE_I18N = True

USE_L10N = True

# 不考慮時區
USE_TZ = False

# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/2.1/howto/static-files/

STATIC_URL = '/static/'
STATICFILES_DIRS = [
    os.path.join(BASE_DIR, "static")
]

# media
MEDIA_URL = '/media/'
MEDIA_ROOT = os.path.join(BASE_DIR, 'media')

# 配置ckeditor
CKEDITOR_UPLOAD_PATH = 'upload/'

# 自定義參數
EACH_PAGE_BLOGS_NUMBER = 7

# 設置數據庫緩存
CACHES = {
    'default': {
        'BACKEND': 'django.core.cache.backends.db.DatabaseCache',
        'LOCATION': 'my_read_num_cache_table',
    }
}

# ckeditor 代碼高亮,以及公式
CKEDITOR_CONFIGS = {
    'default': {
        'skin': 'moono',
        'tabSpaces': 4,
        'mathJaxLib': 'https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js?config=TeX-MML-AM_CHTML',
        'toolbar': (
            ['div', 'Source', '-', 'Save', 'NewPage', 'Preview', '-', 'Templates'],
            ['Cut', 'Copy', 'Paste', 'PasteText', 'PasteFromWord', '-', 'Print',
             'SpellChecker', 'Scayt'],
            ['Undo', 'Redo', '-', 'Find', 'Replace', '-', 'SelectAll', 'RemoveFormat',
             '-', 'Maximize', 'ShowBlocks', '-', "CodeSnippet", 'Mathjax', 'Subscript',
             'Superscript'],
            ['Form', 'Checkbox', 'Radio', 'TextField', 'Textarea', 'Select', 'Button',
             'ImageButton', 'HiddenField'],
            ['Bold', 'Italic', 'Underline', 'Strike', '-'],
            ['NumberedList', 'BulletedList', '-', 'Outdent', 'Indent', 'Blockquote'],
            ['JustifyLeft', 'JustifyCenter', 'JustifyRight', 'JustifyBlock'],
            ['Link', 'Unlink', 'Anchor'],
            ['Image', 'Flash', 'Table', 'HorizontalRule', 'Smiley', 'SpecialChar',
             'PageBreak'], ['Styles', 'Format', 'Font', 'FontSize'],
            ['TextColor', 'BGColor'],),
        'extraPlugins': ','.join([
            'codesnippet',
            'mathjax',
            'dialog',
            'dialogui',
            'lineutils',
        ]),
    },
    'comment_ckeditor': {
        'toolbar': 'custom',
        'toolbar_custom': [
            ['Bold', 'Italic', 'Underline', 'Strike', 'Subscript', 'Superscript'],
            ['TextColor', 'BGColor', 'RemoveFormat'],
            ['NumberedList', 'BulletedList'],
            ['Link', 'Unlink'],
            ['Smiley', 'SpecialChar', 'Blockquote'],
        ],
        'width': 'auto',
        'height': '180',
        'tabSpace': 4,
        'removePlugins': 'elementspath',
        'resize_enabled': False,
    }
}

myblog下的settings.py

"""myblog URL Configuration

The `urlpatterns` list routes URLs to views. For more information please see:
    https://docs.djangoproject.com/en/2.1/topics/http/urls/
Examples:
Function views
    1. Add an import:  from my_app import views
    2. Add a URL to urlpatterns:  path('', views.home, name='home')
Class-based views
    1. Add an import:  from other_app.views import Home
    2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
Including another URLconf
    1. Import the include() function: from django.urls import include, path
    2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
"""
from django.contrib import admin
from django.urls import path, include
from django.conf import settings
from django.conf.urls.static import static
from . import views

urlpatterns = [
    path('', views.home, name='home'),  # 主頁路徑
    path('admin/', admin.site.urls),
    path('ckeditor', include('ckeditor_uploader.urls')),  # 配置上傳url
    path('blog/', include('blog.urls')),  # 博客app路徑
    path('comment/', include('comment.urls')),  # 博客app路徑
    path('likes/', include('likes.urls')),  # 博客app路徑
    path('login/', views.login, name='login'),  # 登陸
    path('register/', views.register, name='register'),  # 登陸
]

# 設置ckeditor的上傳
urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

myblog下的urls.py

# -*- coding: utf-8 -*-
# @Time    : 18-11-7 下午4:12
# @Author  : Felix Wang

from django.shortcuts import render, redirect
from django.contrib.contenttypes.models import ContentType
from django.contrib import auth
from django.contrib.auth.models import User
from django.urls import reverse
from read_statistics.utils import get_seven_days_read_data, get_x_days_hot_data
from blog.models import Blog
from .forms import LoginForm, RegisterForm


def home(requests):
    blog_content_type = ContentType.objects.get_for_model(Blog)
    dates, read_nums = get_seven_days_read_data(blog_content_type)

    context = {
        'read_nums': read_nums,
        'dates': dates,
        'today_hot_data': get_x_days_hot_data(0),  # 獲取今日熱門
        'yesterday_hot_data': get_x_days_hot_data(1),  # 獲取昨日熱門
        'seven_days_hot_data': get_x_days_hot_data(7),  # 獲取周熱門
        'one_month_hot_data': get_x_days_hot_data(30),  # 獲取月熱門
    }
    return render(requests, 'home.html', context)


def login(requests):
    print(requests.POST)
    print(requests.GET)
    # 若是是form表單提交驗證登陸
    if requests.method == 'POST':
        login_form = LoginForm(requests.POST)
        if login_form.is_valid():  # 驗證是否經過
            # 由於在form表單驗證過了，因此不用本身再驗證
            user = login_form.cleaned_data.get('user')
            auth.login(requests, user)
            return redirect(requests.GET.get('from', reverse('home')))
        else:
            login_form.add_error(None, '用戶名或密碼不正確')
    else:
        login_form = LoginForm()
    context = {
        'login_form': login_form,
    }
    return render(requests, 'login.html', context)


def register(requests):
    if requests.method == 'POST':
        reg_form = RegisterForm(requests.POST)
        if reg_form.is_valid():
            username = reg_form.cleaned_data['username']
            email = reg_form.cleaned_data['email']
            password = reg_form.cleaned_data['password']

            # 建立用戶
            user = User.objects.create_user(username=username, email=email, password=password)
            user.save()

            # 登陸用戶
            user = auth.authenticate(username=username, password=password)
            auth.login(requests, user)
            # 登陸以後跳轉
            return redirect(requests.GET.get('from', reverse('home')))
    else:
        reg_form = RegisterForm()

    context = {
        'reg_form': reg_form,
    }
    return render(requests, 'register.html', context)

myblog下的views.py