Django个人博客 之 Model的设计

Author: spareribs

Django/Django_blog/step3/blog/__init__.py

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+from django.contrib import admin
+
+# Register your models here.

Django/Django_blog/step3/blog/__init__.pyc

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+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+import django.contrib.auth.models
+import django.utils.timezone
+from django.conf import settings
+import django.core.validators
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('auth', '0006_require_contenttypes_0002'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='User',
+            fields=[
+                ('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
+                ('password', models.CharField(max_length=128, verbose_name='password')),
+                ('last_login', models.DateTimeField(null=True, verbose_name='last login', blank=True)),
+                ('is_superuser', models.BooleanField(default=False, help_text='Designates that this user has all permissions without explicitly assigning them.', verbose_name='superuser status')),
+                ('username', models.CharField(error_messages={'unique': 'A user with that username already exists.'}, max_length=30, validators=[django.core.validators.RegexValidator('^[\\w.@+-]+$', 'Enter a valid username. This value may contain only letters, numbers and @/./+/-/_ characters.', 'invalid')], help_text='Required. 30 characters or fewer. Letters, digits and @/./+/-/_ only.', unique=True, verbose_name='username')),
+                ('first_name', models.CharField(max_length=30, verbose_name='first name', blank=True)),
+                ('last_name', models.CharField(max_length=30, verbose_name='last name', blank=True)),
+                ('email', models.EmailField(max_length=254, verbose_name='email address', blank=True)),
+                ('is_staff', models.BooleanField(default=False, help_text='Designates whether the user can log into this admin site.', verbose_name='staff status')),
+                ('is_active', models.BooleanField(default=True, help_text='Designates whether this user should be treated as active. Unselect this instead of deleting accounts.', verbose_name='active')),
+                ('date_joined', models.DateTimeField(default=django.utils.timezone.now, verbose_name='date joined')),
+                ('avatar', models.ImageField(default=b'avatar/default.png', upload_to=b'avatar/%Y/%m', max_length=200, blank=True, null=True, verbose_name=b'\xe7\x94\xa8\xe6\x88\xb7\xe5\xa4\xb4\xe5\x83\x8f')),
+                ('qq', models.CharField(max_length=20, null=True, verbose_name=b'QQ\xe5\x8f\xb7\xe7\xa0\x81', blank=True)),
+                ('mobile', models.CharField(max_length=11, unique=True, null=True, verbose_name=b'\xe6\x89\x8b\xe6\x9c\xba\xe5\x8f\xb7\xe7\xa0\x81', blank=True)),
+                ('url', models.URLField(max_length=100, null=True, verbose_name=b'\xe4\xb8\xaa\xe4\xba\xba\xe7\xbd\x91\xe9\xa1\xb5\xe5\x9c\xb0\xe5\x9d\x80', blank=True)),
+                ('groups', models.ManyToManyField(related_query_name='user', related_name='user_set', to='auth.Group', blank=True, help_text='The groups this user belongs to. A user will get all permissions granted to each of their groups.', verbose_name='groups')),
+                ('user_permissions', models.ManyToManyField(related_query_name='user', related_name='user_set', to='auth.Permission', blank=True, help_text='Specific permissions for this user.', verbose_name='user permissions')),
+            ],
+            options={
+                'ordering': ['-id'],
+                'verbose_name': '\u7528\u6237',
+                'verbose_name_plural': '\u7528\u6237',
+            },
+            managers=[
+                ('objects', django.contrib.auth.models.UserManager()),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Ad',
+            fields=[
+                ('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
+                ('title', models.CharField(max_length=50, verbose_name=b'\xe5\xb9\xbf\xe5\x91\x8a\xe6\xa0\x87\xe9\xa2\x98')),
+                ('description', models.CharField(max_length=200, verbose_name=b'\xe5\xb9\xbf\xe5\x91\x8a\xe6\x8f\x8f\xe8\xbf\xb0')),
+                ('image_url', models.ImageField(upload_to=b'ad/%Y/%m', verbose_name=b'\xe5\x9b\xbe\xe7\x89\x87\xe8\xb7\xaf\xe5\xbe\x84')),
+                ('callback_url', models.URLField(null=True, verbose_name=b'\xe5\x9b\x9e\xe8\xb0\x83url', blank=True)),
+                ('date_publish', models.DateTimeField(auto_now_add=True, verbose_name=b'\xe5\x8f\x91\xe5\xb8\x83\xe6\x97\xb6\xe9\x97\xb4')),
+                ('index', models.IntegerField(default=999, verbose_name=b'\xe6\x8e\x92\xe5\x88\x97\xe9\xa1\xba\xe5\xba\x8f(\xe4\xbb\x8e\xe5\xb0\x8f\xe5\x88\xb0\xe5\xa4\xa7)')),
+            ],
+            options={
+                'ordering': ['index', 'id'],
+                'verbose_name': '\u5e7f\u544a',
+                'verbose_name_plural': '\u5e7f\u544a',
+            },
+        ),
+        migrations.CreateModel(
+            name='Article',
+            fields=[
+                ('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
+                ('title', models.CharField(max_length=50, verbose_name=b'\xe6\x96\x87\xe7\xab\xa0\xe6\xa0\x87\xe9\xa2\x98')),
+                ('desc', models.CharField(max_length=50, verbose_name=b'\xe6\x96\x87\xe7\xab\xa0\xe6\x8f\x8f\xe8\xbf\xb0')),
+                ('content', models.TextField(verbose_name=b'\xe6\x96\x87\xe7\xab\xa0\xe5\x86\x85\xe5\xae\xb9')),
+                ('click_count', models.IntegerField(default=0, verbose_name=b'\xe7\x82\xb9\xe5\x87\xbb\xe6\xac\xa1\xe6\x95\xb0')),
+                ('is_recommend', models.BooleanField(default=False, verbose_name=b'\xe6\x98\xaf\xe5\x90\xa6\xe6\x8e\xa8\xe8\x8d\x90')),
+                ('date_publish', models.DateTimeField(auto_now_add=True, verbose_name=b'\xe5\x8f\x91\xe5\xb8\x83\xe6\x97\xb6\xe9\x97\xb4')),
+            ],
+            options={
+                'ordering': ['-date_publish'],
+                'verbose_name': '\u6587\u7ae0',
+                'verbose_name_plural': '\u6587\u7ae0',
+            },
+        ),
+        migrations.CreateModel(
+            name='Category',
+            fields=[
+                ('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
+                ('name', models.CharField(max_length=30, verbose_name=b'\xe5\x88\x86\xe7\xb1\xbb\xe5\x90\x8d\xe7\xa7\xb0')),
+                ('index', models.IntegerField(default=999, verbose_name=b'\xe5\x88\x86\xe7\xb1\xbb\xe7\x9a\x84\xe6\x8e\x92\xe5\xba\x8f')),
+            ],
+            options={
+                'ordering': ['index', 'id'],
+                'verbose_name': '\u5206\u7c7b',
+                'verbose_name_plural': '\u5206\u7c7b',
+            },
+        ),
+        migrations.CreateModel(
+            name='Comment',
+            fields=[
+                ('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
+                ('content', models.TextField(verbose_name=b'\xe8\xaf\x84\xe8\xae\xba\xe5\x86\x85\xe5\xae\xb9')),
+                ('username', models.CharField(max_length=30, null=True, verbose_name=b'\xe7\x94\xa8\xe6\x88\xb7\xe5\x90\x8d', blank=True)),
+                ('email', models.EmailField(max_length=50, null=True, verbose_name=b'\xe9\x82\xae\xe7\xae\xb1\xe5\x9c\xb0\xe5\x9d\x80', blank=True)),
+                ('url', models.URLField(max_length=100, null=True, verbose_name=b'\xe4\xb8\xaa\xe4\xba\xba\xe7\xbd\x91\xe9\xa1\xb5\xe5\x9c\xb0\xe5\x9d\x80', blank=True)),
+                ('date_publish', models.DateTimeField(auto_now_add=True, verbose_name=b'\xe5\x8f\x91\xe5\xb8\x83\xe6\x97\xb6\xe9\x97\xb4')),
+                ('article', models.ForeignKey(verbose_name=b'\xe6\x96\x87\xe7\xab\xa0', blank=True, to='blog.Article', null=True)),
+                ('pid', models.ForeignKey(verbose_name=b'\xe7\x88\xb6\xe7\xba\xa7\xe8\xaf\x84\xe8\xae\xba', blank=True, to='blog.Comment', null=True)),
+                ('user', models.ForeignKey(verbose_name=b'\xe7\x94\xa8\xe6\x88\xb7', blank=True, to=settings.AUTH_USER_MODEL, null=True)),
+            ],
+            options={
+                'verbose_name': '\u8bc4\u8bba',
+                'verbose_name_plural': '\u8bc4\u8bba',
+            },
+        ),
+        migrations.CreateModel(
+            name='Links',
+            fields=[
+                ('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
+                ('title', models.CharField(max_length=50, verbose_name=b'\xe6\xa0\x87\xe9\xa2\x98')),
+                ('description', models.CharField(max_length=200, verbose_name=b'\xe5\x8f\x8b\xe6\x83\x85\xe9\x93\xbe\xe6\x8e\xa5\xe6\x8f\x8f\xe8\xbf\xb0')),
+                ('callback_url', models.URLField(verbose_name=b'url\xe5\x9c\xb0\xe5\x9d\x80')),
+                ('date_publish', models.DateTimeField(auto_now_add=True, verbose_name=b'\xe5\x8f\x91\xe5\xb8\x83\xe6\x97\xb6\xe9\x97\xb4')),
+                ('index', models.IntegerField(default=999, verbose_name=b'\xe6\x8e\x92\xe5\x88\x97\xe9\xa1\xba\xe5\xba\x8f(\xe4\xbb\x8e\xe5\xb0\x8f\xe5\x88\xb0\xe5\xa4\xa7)')),
+            ],
+            options={
+                'ordering': ['index', 'id'],
+                'verbose_name': '\u53cb\u60c5\u94fe\u63a5',
+                'verbose_name_plural': '\u53cb\u60c5\u94fe\u63a5',
+            },
+        ),
+        migrations.CreateModel(
+            name='Tag',
+            fields=[
+                ('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
+                ('name', models.CharField(max_length=30, verbose_name=b'\xe6\xa0\x87\xe7\xad\xbe\xe5\x90\x8d\xe7\xa7\xb0')),
+            ],
+            options={
+                'verbose_name': '\u6807\u7b7e',
+                'verbose_name_plural': '\u6807\u7b7e',
+            },
+        ),
+        migrations.AddField(
+            model_name='article',
+            name='category',
+            field=models.ForeignKey(verbose_name=b'\xe5\x88\x86\xe7\xb1\xbb', blank=True, to='blog.Category', null=True),
+        ),
+        migrations.AddField(
+            model_name='article',
+            name='tag',
+            field=models.ManyToManyField(to='blog.Tag', verbose_name=b'\xe6\xa0\x87\xe7\xad\xbe'),
+        ),
+        migrations.AddField(
+            model_name='article',
+            name='user',
+            field=models.ForeignKey(verbose_name=b'\xe7\x94\xa8\xe6\x88\xb7', to=settings.AUTH_USER_MODEL),
+        ),
+    ]

Django/Django_blog/step3/blog/admin.py

@@ -0,0 +1,171 @@
+# coding: utf-8
+# author: spareribs
+
+
+from django.db import models
+
+from django.contrib.auth.models import AbstractUser
+
+
+# Create your models here.
+
+'''
+############ 本地模型用到的字段类型和和参数的含义
+
+max_length：最大长度
+blank：True可以为空
+null：可以为null
+verbose_name：admin显示名称
+default：默认值
+unique：True表示唯一
+【ImageField】：upload_to表示MEDIA_ROOT的子目录，用来存放上传的文件
+【CharField】
+【URLField】
+【IntegerField】
+【DateTimeField】：auto_now_add表示自动设置当前时间
+【TextField】
+【BooleanField】
+【EmailField】
+'''
+# 用户(User)模型
+# 采用的继承方式扩展用户信息
+class User(AbstractUser):
+    # 在继承的基础上新增4个字段
+    avatar = models.ImageField(upload_to='avatar/%Y/%m', default='avatar/default.png', max_length=200, blank=True,
+                               null=True, verbose_name='用户头像')
+    qq = models.CharField(max_length=20, blank=True, null=True, verbose_name='QQ号码')
+    mobile = models.CharField(max_length=11, blank=True, null=True, unique=True, verbose_name='手机号码')
+    url = models.URLField(max_length=100, blank=True, null=True, verbose_name='个人网页地址')
+
+    # 使用内部的class Meta 定义模型的元数据
+    class Meta:
+        # verbose_name：数据库表名名称，这里表名称为“用户”
+        verbose_name = '用户'
+        # verbose_name_plural：人类可读的单复数名称，这里“用户”复数名称为“用户”
+        verbose_name_plural = verbose_name
+        # ordering：如排序选项，这里以id降序来排序
+        ordering = ['-id']
+
+    # 对象的字符串表达式(unicode格式)
+    def __unicode__(self):
+        return self.username
+
+
+# 标签(tag)模型
+class Tag(models.Model):
+    name = models.CharField(max_length=30, verbose_name='标签名称')
+
+    class Meta:
+        verbose_name = '标签'
+        verbose_name_plural = verbose_name
+
+    def __unicode__(self):
+        return self.name
+
+
+# 分类(category)模型
+class Category(models.Model):
+    name = models.CharField(max_length=30, verbose_name='分类名称')
+    index = models.IntegerField(default=999, verbose_name='分类的排序')
+
+    class Meta:
+        verbose_name = '分类'
+        verbose_name_plural = verbose_name
+        ordering = ['index', 'id']
+
+    def __unicode__(self):
+        return self.name
+
+
+# 自定义一个文章Model的管理器
+# 1、新加一个数据处理的方法
+# 2、改变原有的queryset
+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文章存档')
+            if date not in distinct_date_list:
+                distinct_date_list.append(date)
+        return distinct_date_list
+
+
+# 文章(aticle)模型
+class Article(models.Model):
+    title = models.CharField(max_length=50, verbose_name='文章标题')
+    desc = models.CharField(max_length=50, verbose_name='文章描述')
+    content = models.TextField(verbose_name='文章内容')
+    click_count = models.IntegerField(default=0, verbose_name='点击次数')
+    is_recommend = models.BooleanField(default=False, verbose_name='是否推荐')
+    date_publish = models.DateTimeField(auto_now_add=True, verbose_name='发布时间')
+
+    #
+    user = models.ForeignKey(User, verbose_name='用户')
+    category = models.ForeignKey(Category, blank=True, null=True, verbose_name='分类')
+    tag = models.ManyToManyField(Tag, verbose_name='标签')
+
+    objects = ArticleManager()
+
+    class Meta:
+        verbose_name = '文章'
+        verbose_name_plural = verbose_name
+        ordering = ['-date_publish']
+
+    def __unicode__(self):
+        return self.title
+
+
+# 评论(comment)模型
+class Comment(models.Model):
+    content = models.TextField(verbose_name='评论内容')
+    username = models.CharField(max_length=30, blank=True, null=True, verbose_name='用户名')
+    email = models.EmailField(max_length=50, blank=True, null=True, verbose_name='邮箱地址')
+    url = models.URLField(max_length=100, blank=True, null=True, verbose_name='个人网页地址')
+    date_publish = models.DateTimeField(auto_now_add=True, verbose_name='发布时间')
+    #
+    user = models.ForeignKey(User, blank=True, null=True, verbose_name='用户')
+    article = models.ForeignKey(Article, blank=True, null=True, verbose_name='文章')
+    pid = models.ForeignKey('self', blank=True, null=True, verbose_name='父级评论')
+
+    class Meta:
+        verbose_name = '评论'
+        verbose_name_plural = verbose_name
+
+    def __unicode__(self):
+        return str(self.id)
+
+
+# 友情链接(links)模型
+class Links(models.Model):
+    title = models.CharField(max_length=50, verbose_name='标题')
+    description = models.CharField(max_length=200, verbose_name='友情链接描述')
+    callback_url = models.URLField(verbose_name='url地址')
+    date_publish = models.DateTimeField(auto_now_add=True, verbose_name='发布时间')
+    index = models.IntegerField(default=999, verbose_name='排列顺序(从小到大)')
+
+    class Meta:
+        verbose_name = '友情链接'
+        verbose_name_plural = verbose_name
+        ordering = ['index', 'id']
+
+    def __unicode__(self):
+        return self.title
+
+
+# 广告(ad)模型
+class Ad(models.Model):
+    title = models.CharField(max_length=50, verbose_name='广告标题')
+    description = models.CharField(max_length=200, verbose_name='广告描述')
+    image_url = models.ImageField(upload_to='ad/%Y/%m', verbose_name='图片路径')
+    callback_url = models.URLField(null=True, blank=True, verbose_name='回调url')
+    date_publish = models.DateTimeField(auto_now_add=True, verbose_name='发布时间')
+    index = models.IntegerField(default=999, verbose_name='排列顺序(从小到大)')
+
+    class Meta:
+        verbose_name = u'广告'
+        verbose_name_plural = verbose_name
+        ordering = ['index', 'id']
+
+    def __unicode__(self):
+        return self.title