使用django + KindEditor 开发个人博客系统

前奏小知识

1. 通过url参数组合不同的过滤条件

django框架部分

1. 数据结构models

from django.db import models

# Create your models here.


# 大分类表
class Category(models.Model):
    caption = models.CharField(max_length=32)


# 文章类型表
class ArticleTyp(models.Model):
    caption = models.CharField(max_length=32)


# 创建一个文章表,设置标题和内容;文章大分类小分类 四个字段
class Article(models.Model):
    title = models.CharField(max_length=1024)
    content = models.CharField(max_length=30720)
    category = models.ForeignKey(Category, null=True, on_delete=models.SET_NULL)
    article_type = models.ForeignKey(ArticleTyp, null=True, on_delete=models.SET_NULL)
    # 测试使用内存级别选项，不存储于数据库
    # type_choice = (
    #     (1, "Python"),
    #     (2, "JavaScript"),
    #     (3, "前端"),
    # )
    # article_type_id = models.IntegerField(choices=type_choice)

2. url

url(r'^article/-(?P<article_type_id>d+)-(?P<category_id>d+).html', blog_views.Article.as_view()),

3.views 

from django.shortcuts import render

from django.views import View
from  Blog import models
# Create your views here.


class Article(View):
    def get(self, request, *args, **kwargs):
        # 查询时的过滤条件
        condition = {}
        for k, v in kwargs.items():
            # 渲染html文件中判断是否为选中分类：url参数为字符串；数据库查询出来的id为int类型
            # 转换为同一个类型，渲染模板时做比较
            kwargs[k] = int(v)
            if v == '0':  # 如果为零，查询条件中就不传入此参数
                pass
            else:
                condition[k] = v

        print(condition)
        article_type_list = models.ArticleTyp.objects.all()
        # models 中使用内存级别字段
        # article_type_list = models.Article.type_choice
        category_list = models.Category.objects.all()
        result = models.Article.objects.filter(**condition)
        return render(
            request,
            # 'blog/article.html',
            'blog/article_simple_tag.html',
            {'article_type_list': article_type_list,
             'category_list': category_list,
             'articles': result,
             'condition_dict': kwargs}
        )

4. models 数据库类型核对

from django.db import models

# Create your models here.


# 大分类表
class Category(models.Model):
    caption = models.CharField(max_length=32)


# 文章类型表
class ArticleTyp(models.Model):
    caption = models.CharField(max_length=32)


# 创建一个文章表,设置标题和内容;文章大分类小分类 四个字段
class Article(models.Model):
    title = models.CharField(max_length=1024)
    content = models.CharField(max_length=30720)
    category = models.ForeignKey(Category, null=True, on_delete=models.SET_NULL)
    article_type = models.ForeignKey(ArticleTyp, null=True, on_delete=models.SET_NULL)
    # 测试使用内存级别选项，不存储于数据库
    # type_choice = (
    #     (1, "Python"),
    #     (2, "JavaScript"),
    #     (3, "前端"),
    # )
    # article_type_id = models.IntegerField(choices=type_choice)

5.自定义html模板 函数 生成过滤项的a 标签html字符串

templatetags/condition_filter.py

#!/usr/bin/env python3
# -*- coding:utf-8 -*-
#  @Time: 2020/8/8 11:17
#  @Author:zhangmingda
#  @File: condition_filter.py
#  @Software: PyCharm
#  Description:

from django import template
from django.utils.safestring import mark_safe


register = template.Library()


@register.simple_tag
def filter_all(condition_dict, all_condition):
    article_type_id = condition_dict["article_type_id"]
    category_id = condition_dict["category_id"]

    all_ret = ""
    if all_condition == "article_type_id":
        if article_type_id == 0:
            all_ret = '<a href="/article/-0-%s.html" class="condition active">全部</a>' % category_id
        else:
            all_ret = '<a href="/article/-0-%s.html" class="condition ">全部</a>' % category_id
    if all_condition == "category_id":
        if category_id == 0:
            all_ret = '<a href="/article/-%s-0.html" class="condition active">全部</a>' % article_type_id
        else:
            all_ret = '<a href="/article/-%s-0.html" class="condition ">全部</a>' % article_type_id

    all_ret = mark_safe(all_ret)

    return all_ret

@register.simple_tag
def filter_article_type(condition_dict, article_type_list ):
    """
            {% if condition_dict.article_type_id == article_type.id %}
                <a href="/article/-{{ article_type.id }}-{{ condition_dict.category_id }}.html" class="condition active">{{ article_type.caption }}</a>
            {% else %}
                <a href="/article/-{{ article_type.id }}-{{ condition_dict.category_id }}.html" class="condition">{{ article_type.caption }}</a>
            {% endif %}
    :return:
    """
    a_tag_list = []
    for article_type in article_type_list:

        article_type_id = article_type.id
        # models 中使用内存级别字段
        # article_type_id = article_type[0]

        if condition_dict["article_type_id"] == article_type_id:
            ret = '<a href="/article/-{article_type_id}-{category_id}.html" class="condition active">{article_type_caption}</a>'.format(
                article_type_id=article_type_id,
                category_id=condition_dict.get('category_id'),
                article_type_caption=article_type.caption,
                # models 中使用内存级别字段
                # article_type_caption=article_type[1]
            )
        else:
            ret = '<a href="/article/-{article_type_id}-{category_id}.html" class="condition ">{article_type_caption}</a>'.format(
                article_type_id=article_type_id,
                category_id=condition_dict.get('category_id'),
                article_type_caption=article_type.caption,
                # models 中使用内存级别字段
                # article_type_caption=article_type[1]
            )
        a_tag_list.append(ret)
    all_a_tag = ''.join(a_tag_list)
    return mark_safe(all_a_tag)




@register.simple_tag
def filter_category(condition_dict, category_list ):
    """
        {% for category in category_list %}
            {% if condition_dict.category_id == category.id %}
                <a href="/article/-{{ condition_dict.article_type_id }}-{{ category.id }}.html" class="condition active" >{{ category.caption }}</a>
            {% else %}
                <a  href="/article/-{{ condition_dict.article_type_id }}-{{ category.id }}.html" class="condition" >{{ category.caption }}</a>
            {% endif %}
        {% endfor %}
    :param condition_dict: 
    :param category_list: 
    :return: 
    """
    filter_category_tag_list = []
    for category in category_list:
        category_id = category.id
        if condition_dict.get("category_id") == category_id:
            category_a_tag = '<a href="/article/-%s-%s.html" class="condition active" >%s</a>' % (condition_dict.get("article_type_id"), category_id, category.caption )
        else:
            category_a_tag = '<a href="/article/-%s-%s.html" class="condition " >%s</a>' % (condition_dict.get("article_type_id"), category_id, category.caption )
        filter_category_tag_list.append(category_a_tag)
    ret = ''.join(filter_category_tag_list)
    return mark_safe(ret)

7.html 加载自定义模板方法

{% load condition_filter %}
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .condition{
            display: inline-block;
            border: 1px solid #dddddd;
            padding: 3px 5px;
            margin: 5px;
        }
        .condition.active {
            background-color: #843534;
        }
    </style>
</head>
<body>
    <h1>过滤条件</h1>
    <div>
        <!--使用simpletag自定义函数生成HTML标签-->    
        {% filter_all condition_dict "article_type_id" %}
        {% filter_article_type condition_dict article_type_list %}
    </div>
    <div>
        <!--使用simpletag自定义函数生成HTML标签-->
        {% filter_all condition_dict "category_id" %}
        {% filter_category condition_dict category_list %}
    </div>
    <h1>查询结果</h1>
    <ul>
        {% for article in articles %}
            <li> {{ article.id }} - {{ article.title }}</li>
        {% endfor %}
    </ul>
</body>
</html>

正式来一发

数据库设计

"""

用户表：UserInfo
    nid             自增列
    username        用户名 不可重复
    password        密码
    nickname        昵称
    email           邮箱
    avtar           头像
    create_time     创建时间
    fans            粉丝们 ---- 多对多表 外键自己

个人博客信息表：Blog
    nid     自增列
    title   个人博客标题
    site    个人博客前缀
    theme   博客主题
    user    博客一对一 对应用户id

互粉关系表：UserFans
    user        博主 外键到用户表
    folower     粉丝  外键到用户表
    class Meta: 不可重复
        unique_together = [('user', 'follower')]

文章分类表(博主个人)：Category
    nid     自增
    title   标题
    blog    所属博客 -- 外键到博客表

文章标签表：Tag
    nid         自增主键
    title       标签名称
    blog        所属博客    - 外键到博客表-主键

文章内容表：ArticleDetail
    content         文章内容
    aritcle         所属文章 - 外键到文章信息表

顶/踩 统计：UpDown
    aritcle         对应文章 - 外键到 文章表的主键
    user            用户 外键到用户表主键
    up              顶或者是踩:布尔值即可
    class Meta:     # 两个字段合并唯一 :顶或者踩，一篇文章只能顶或者踩一次
        unique_together = [('article', 'user')]

评论表：Comment
    nid         自增主键
    content     内容
    create_time 创建时间
    reply       回复/评论   对自己表中已有的数据：self
    article     被评论的文章   -  外键到文章表主键
    user        评论着 - 外键到用户表 主键

文章表：Article
    nid         自增主键
    title       文章标题
    summary     文章简介
    read_count  阅读量
    comment_count   评论数量
    up_count        点赞数量
    down_count      踩量
    create_time     创建时间
    blog            所属博客
    category        文章类型
    type_choices    语言分类选项
    article_type    语言分类
    tags            标签 多对多 指定多对多的第三张表名Article2Tag

文章-标签多对多表：Article2Tag
    article         文章 外键到文章表主键
    tag             标签 外键到标签表主键
    class Meta:     标签&文章一起，不得重复
        unique_together = [('article', 'tag')]

"""

数据库表结构代码

models.py

from django.db import models

# Create your models here.

class UserInfo(models.Model):
    """
    用户表
    """
    uid = models.BigAutoField(primary_key=True)
    username = models.CharField(max_length=32, unique=True, verbose_name="用户名")
    password = models.CharField(verbose_name='密码', max_length=64)
    nickname = models.CharField(verbose_name='昵称', max_length=32)
    email = models.EmailField(verbose_name='邮箱', unique=True)
    avatar = models.ImageField(verbose_name='头像')
    create_time = models.DateTimeField(verbose_name='创建时间', auto_now_add=True)
    fans = models.ManyToManyField(verbose_name='粉丝们',
                                  to='UserInfo',
                                  through='UserFans',
                                  through_fields=('user', 'follower'))

class UserFans(models.Model):
    """互粉关系表"""
    user = models.ForeignKey(verbose_name='博主', to=UserInfo, to_field='uid', related_name='users', on_delete=models.SET_NULL, null=True)
    follower = models.ForeignKey(verbose_name='粉丝', to=UserInfo, to_field='uid', related_name='followers', on_delete=models.SET_NULL, null=True)
    class Meta:
        unique_together = [('user', 'follower')]

class Blog(models.Model):
    """
    博客信息
    """
    bid = models.BigIntegerField(primary_key=True)
    title = models.CharField(verbose_name='标题', max_length=128)
    site = models.CharField(verbose_name="个人博客前缀", max_length=32, unique=True)
    theme = models.CharField(verbose_name='博客主题', max_length=32)
    user = models.OneToOneField(to='UserInfo', to_field='uid', on_delete=models.SET_NULL, null=True)


class Category(models.Model):
    """博主个人文章分类"""
    cid = models.AutoField(primary_key=True)
    title = models.CharField(verbose_name='分类标题', max_length=32)
    blog = models.ForeignKey(verbose_name='所属博客', to='Blog', to_field='bid',
                             on_delete=models.SET_NULL,null=True)


class Tag(models.Model):
    tid = models.AutoField(primary_key=True)
    title = models.CharField(verbose_name='标签名称',max_length=32)
    blog = models.ForeignKey(verbose_name="所属文章",to='Blog', to_field='bid',on_delete=models.SET_NULL,
                             null=True)


class Article(models.Model):
    """文章信息表"""
    aid = models.BigAutoField(primary_key=True)
    title = models.CharField(verbose_name="文章标题", max_length=128)
    summary = models.CharField(verbose_name="文章简介", max_length=255)
    read_count = models.IntegerField(default=0)
    coumment_count = models.IntegerField(default=0)
    up_count = models.IntegerField(default=0)
    down_count = models.IntegerField(default=0)
    create_time = models.DateTimeField(verbose_name="创建时间", auto_now_add=True)
    blog = models.ForeignKey(verbose_name="所属博客", to='Blog', to_field='bid',
                             on_delete=models.SET_NULL, null=True)
    category = models.ForeignKey(verbose_name='文章类型', to='Category',to_field='cid',
                                 on_delete=models.SET_NULL, null=True)
    type_choices = [
        (1, "Python"),
        (2, "Linux"),
        (3, "OpenStack"),
        (4, "GoLang"),
    ]
    article_type = models.IntegerField(choices=type_choices, default=None)
    tags = models.ManyToManyField(
        to='Tag', through='ArticleToTag',
        through_fields=('article', 'tag')
    )


class ArticleToTag(models.Model):
    article = models.ForeignKey(verbose_name='文章', to='Article', to_field='aid',
                                on_delete=models.SET_NULL, null=True)

    tag = models.ForeignKey(verbose_name="标签", to='Tag', to_field='tid',
                            on_delete=models.SET_NULL,null=True)
    class Meta:
        unique_together = [
            ('article', 'tag')
        ]


class ArticleDetail(models.Model):
    """文章详情表"""
    content = models.TextField(verbose_name="文章内容")
    article = models.OneToOneField(verbose_name="所属文章", to='Article',to_field='aid',
                                   on_delete=models.CASCADE)

class UpDown(models.Model):
    """文章顶/踩"""
    article = models.ForeignKey(verbose_name="文章", to='Article', to_field='aid',
                                on_delete=models.CASCADE)
    user = models.ForeignKey(verbose_name='顶踩用户', to='UserInfo', to_field='uid',
                             on_delete=models.CASCADE)
    up = models.BooleanField(verbose_name='是/否赞')

    class Meta:
        """联合唯一"""
        unique_together = [('article', 'user')]


class Comment(models.Model):
    """评论表"""
    nid = models.BigAutoField(primary_key=True)
    content = models.CharField(verbose_name='评论内容', max_length=255)
    create_time = models.DateTimeField(verbose_name="创建时间", auto_now_add=True)

    reply = models.ForeignKey(verbose_name="回复已有评论",to="self",
                              null=True, on_delete=models.SET_NULL)
    article = models.ForeignKey(verbose_name="对应的文章",
                                to="Article",
                                to_field='aid',
                                on_delete=models.SET_NULL,
                                null=True)

创建数据库：python manage.py makemigrations; python manage.py migrate