跟著老師用Navicat Data Modeler畫了一下大概的數(shù)據(jù)模型

主要有User月幌，Tag橙凳，Category，ArticleManager普办，Article，Comment徘钥，Links衔蹲，Ad這幾張表。

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根據(jù)pdm在blog/models.py中定義模型

#-*- coding: utf-8 -*-
from __future__ import unicode_literals
from django.contrib.auth.models import AbstractUser

from django.db import models

# Create your models here.
# 用戶模型.
# 第一種：采用的繼承方式擴(kuò)展用戶信息（本系統(tǒng)采用）
# 擴(kuò)展：關(guān)聯(lián)的方式去擴(kuò)展用戶信息
class User(AbstractUser):
    avatar = models.ImageField(upload_to='avatar/%Y/%m', default='avatar/default.png', max_length=200, blank=True, null=True, verbose_name='用戶頭像')
    qq = models.CharField(max_length=20, blank=True, null=True, verbose_name='QQ號(hào)碼')
    mobile = models.CharField(max_length=11, blank=True, null=True, unique=True, verbose_name='手機(jī)號(hào)碼')
    url = models.URLField(max_length=100, blank=True, null=True, verbose_name='個(gè)人網(wǎng)頁(yè)地址')

    class Meta:
        verbose_name = '用戶'
        verbose_name_plural = verbose_name
        ordering = ['-id']

    def __unicode__(self):
        return self.username

# tag（標(biāo)簽）
class Tag(models.Model):
    name = models.CharField(max_length=30, verbose_name='標(biāo)簽名稱')

    class Meta:
        verbose_name = '標(biāo)簽'
        verbose_name_plural = verbose_name

    def __unicode__(self):
        return self.name

# 分類
class Category(models.Model):
    name = models.CharField(max_length=30, verbose_name='分類名稱')
    index = models.IntegerField(default=999,verbose_name='分類的排序')

    class Meta:
        verbose_name = '分類'
        verbose_name_plural = verbose_name
        ordering = ['index', 'id']

    def __unicode__(self):
        return self.name

# 自定義一個(gè)文章Model的管理器
# 1、新加一個(gè)數(shù)據(jù)處理的方法
# 2臼节、改變?cè)械膓ueryset
class ArticleManager(models.Manager):
    def distinct_date(self):
        distinct_date_list = []
        date_list = self.values('date_publish')
        for date in date_list:
            date = date['date_publish'].strftime('%Y/%m文章存檔')
            if date not in distinct_date_list:
                distinct_date_list.append(date)
        return distinct_date_list

# 文章模型
class Article(models.Model):
    title = models.CharField(max_length=50, verbose_name='文章標(biāo)題')
    desc = models.CharField(max_length=50, verbose_name='文章描述')
    content = models.TextField(verbose_name='文章內(nèi)容')
    click_count = models.IntegerField(default=0, verbose_name='點(diǎn)擊次數(shù)')
    is_recommend = models.BooleanField(default=False, verbose_name='是否推薦')
    date_publish = models.DateTimeField(auto_now_add=True, verbose_name='發(fā)布時(shí)間')
    user = models.ForeignKey(User, verbose_name='用戶')
    category = models.ForeignKey(Category, blank=True, null=True, verbose_name='分類')
    tag = models.ManyToManyField(Tag, verbose_name='標(biāo)簽')

    objects = ArticleManager()

    class Meta:
        verbose_name = '文章'
        verbose_name_plural = verbose_name
        ordering = ['-date_publish']

    def __unicode__(self):
        return self.title

# 評(píng)論模型
class Comment(models.Model):
    content = models.TextField(verbose_name='評(píng)論內(nèi)容')
    username = models.CharField(max_length=30, blank=True, null=True, verbose_name='用戶名')
    email = models.EmailField(max_length=50, blank=True, null=True, verbose_name='郵箱地址')
    url = models.URLField(max_length=100, blank=True, null=True, verbose_name='個(gè)人網(wǎng)頁(yè)地址')
    date_publish = models.DateTimeField(auto_now_add=True, verbose_name='發(fā)布時(shí)間')
    user = models.ForeignKey(User, blank=True, null=True, verbose_name='用戶')
    article = models.ForeignKey(Article, blank=True, null=True, verbose_name='文章')
    pid = models.ForeignKey('self', blank=True, null=True, verbose_name='父級(jí)評(píng)論')

    class Meta:
        verbose_name = '評(píng)論'
        verbose_name_plural = verbose_name

    def __unicode__(self):
        return str(self.id)

# 友情鏈接
class Links(models.Model):
    title = models.CharField(max_length=50, verbose_name='標(biāo)題')
    description = models.CharField(max_length=200, verbose_name='友情鏈接描述')
    callback_url = models.URLField(verbose_name='url地址')
    date_publish = models.DateTimeField(auto_now_add=True, verbose_name='發(fā)布時(shí)間')
    index = models.IntegerField(default=999, verbose_name='排列順序(從小到大)')

    class Meta:
        verbose_name = '友情鏈接'
        verbose_name_plural = verbose_name
        ordering = ['index', 'id']

    def __unicode__(self):
        return self.title

# 廣告
class Ad(models.Model):
    title = models.CharField(max_length=50, verbose_name='廣告標(biāo)題')
    description = models.CharField(max_length=200,  verbose_name='廣告描述')
    image_url = models.ImageField(upload_to='ad/%Y/%m', verbose_name='圖片路徑')
    callback_url = models.URLField(null=True, blank=True, verbose_name='回調(diào)url')
    date_publish = models.DateTimeField(auto_now_add=True, verbose_name='發(fā)布時(shí)間')
    index = models.IntegerField(default=999, verbose_name='排列順序(從小到大)')

    class Meta:
        verbose_name = u'廣告'
        verbose_name_plural = verbose_name
        ordering = ['index', 'id']

    def __unicode__(self):
        return self.title

下載安裝mysql撬陵，下載的mysql-community-server版俱病，為免安裝版。

設(shè)置參考百度經(jīng)驗(yàn)……
root用戶的默認(rèn)密碼為空袱结，不需要輸入,更改密碼是用

>>>mysqladmin -u root password "root"

修改默認(rèn)的sqlite3數(shù)據(jù)庫(kù)為mysql數(shù)據(jù)庫(kù)，修改settings.py

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'blog_db',
        'HOST':'127.0.0.1',
        'PORT':3306,
        'USER':'root',
        'PASSWORD':'root',
    }
}

由于引用django.contrib.auth.models.AbstractUser

AUTH_USER_MODEL = 'blog.User'

pycharm中Tools>run manage.py Task 中運(yùn)行

makemigrations#生產(chǎn)sql
migrate             #執(zhí)行sql,生成對(duì)應(yīng)的表

生成如下列表：

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createsuperuser添加超級(jí)賬戶

如遇數(shù)據(jù)庫(kù)模型變更途凫，則更新數(shù)據(jù)庫(kù)垢夹，使用以下語(yǔ)句：

makemigrations
syncdb