Day21 博客园的构建

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博客园系统：

　　1，基于ajax实现登录，注册

　　2，系统首页

　　3，文章详细页

 

博客园的表关系：

from django.db import models

# Create your models here.

from django.db import models

# Create your models here.
from django.contrib.auth.models import AbstractUser


class UserInfo(AbstractUser):


    """
    用户信息
    """


    nid = models.AutoField(primary_key=True)
    nickname = models.CharField(verbose_name='昵称', max_length=32)
    telephone = models.CharField(max_length=11, blank=True, null=True, unique=True, verbose_name='手机号码')
    avatar = models.FileField(verbose_name='头像',upload_to = 'avatar/',default="avatar/default.png")
    create_time = models.DateTimeField(verbose_name='创建时间', auto_now_add=True)
    blog = models.OneToOneField(to='Blog', to_field='nid',null=True)
    

    def __str__(self):
        return self.username



class Blog(models.Model):

    """
    博客信息
    """
    nid = models.AutoField(primary_key=True)
    title = models.CharField(verbose_name='个人博客标题', max_length=64)
    site = models.CharField(verbose_name='个人博客后缀', max_length=32, unique=True)
    theme = models.CharField(verbose_name='博客主题', max_length=32)

    def __str__(self):
        return self.title

class HomeCategory(models.Model):
    """
    博主个人文章分类表
    """

    nid = 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='nid')

    def __str__(self):
        return self.title

    class Meta:
        verbose_name = 'category'
        verbose_name_plural = 'category'
        ordering = ['title']

class Article(models.Model):

    nid = models.AutoField(primary_key=True)
    title = models.CharField(max_length=50, verbose_name='文章标题')
    desc = models.CharField(max_length=255, verbose_name='文章描述')
    read_count = models.IntegerField(default=0)
    comment_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')

    homeCategory = models.ForeignKey(verbose_name='文章类型', to='HomeCategory', to_field='nid', null=True)
    user = models.ForeignKey(verbose_name='作者', to='UserInfo', to_field='nid')

    tags = models.ManyToManyField(
        to="Tag",
        through='Article2Tag',
        through_fields=('article', 'tag'),
    )

   

    def __str__(self):
        return self.title

class ArticleDetail(models.Model):
    """
    文章详细表
    """
    nid = models.AutoField(primary_key=True)
    content = models.TextField(verbose_name='文章内容', )

    article = models.OneToOneField(verbose_name='所属文章', to='Article', to_field='nid')

class Comment(models.Model):

    """
    评论表
    """

    nid = models.AutoField(primary_key=True)
    article = models.ForeignKey(verbose_name='评论文章', to='Article', to_field='nid')
    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)

    parent_comment = models.ForeignKey('self', blank=True, null=True, verbose_name='父级评论')
    user = models.ForeignKey(verbose_name='评论者', to='UserInfo', to_field='nid')

    up_count = models.IntegerField(default=0)

    def __str__(self):
        return self.content

class ArticleUpDown(models.Model):

    """
    点赞表
    """
    nid = models.AutoField(primary_key=True)
    user = models.ForeignKey('UserInfo', null=True)
    article = models.ForeignKey("Article", null=True)
    is_up = models.BooleanField(default=True,verbose_name='是否赞')
    class Meta:
        unique_together = [
            ('article', 'user'),
        ]

class CommentUp(models.Model):

    """
    点赞表
    """

    nid  = models.AutoField(primary_key=True)
    user = models.ForeignKey('UserInfo', null=True)
    comment = models.ForeignKey("Comment", null=True)

class Tag(models.Model):

    nid = models.AutoField(primary_key=True)
    title = models.CharField(verbose_name='标签名称', max_length=32)
    blog = models.ForeignKey(verbose_name='所属博客', to='Blog', to_field='nid')

    def __str__(self):
        return self.title

class Article2Tag(models.Model):

    nid = models.AutoField(primary_key=True)
    article = models.ForeignKey(verbose_name='文章', to="Article", to_field='nid')
    tag = models.ForeignKey(verbose_name='标签', to="Tag", to_field='nid')

    def __str__(self):
        return self.article.title+"--"+self.tag.title

    class Meta:
        unique_together = [
            ('article', 'tag'),
        ]

 

钩子怎么用：

钩子定义是有规则的：

　　clean_   +   字段的名字：

　　这个意思就是说你在校验那个字段

类似这种写法，这些都叫做局部钩子。

 

 

 

 

 

 

 

 

 

 

 

 

 

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