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@ -1,6 +1,7 @@
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import logging
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import re
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from abc import abstractmethod
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#ymq:导入logging用于日志记录,re用于正则表达式操作,abstractmethod用于定义抽象方法
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from django.conf import settings
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from django.core.exceptions import ValidationError
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@ -8,36 +9,43 @@ from django.db import models
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from django.urls import reverse
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from django.utils.timezone import now
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from django.utils.translation import gettext_lazy as _
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from mdeditor.fields import MDTextField
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from uuslug import slugify
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from mdeditor.fields import MDTextField # 导入markdown编辑器字段
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from uuslug import slugify # 导入slug生成工具
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from djangoblog.utils import cache_decorator, cache
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from djangoblog.utils import get_current_site
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from djangoblog.utils import cache_decorator, cache # 导入缓存相关工具
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from djangoblog.utils import get_current_site # 导入获取当前站点信息的工具
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logger = logging.getLogger(__name__)
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logger = logging.getLogger(__name__) # 创建当前模块的日志记录器
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class LinkShowType(models.TextChoices):
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I = ('i', _('index'))
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L = ('l', _('list'))
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P = ('p', _('post'))
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A = ('a', _('all'))
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S = ('s', _('slide'))
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#ymq:定义链接展示位置的枚举类
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I = ('i', _('index')) # 首页展示
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L = ('l', _('list')) # 列表页展示
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P = ('p', _('post')) # 文章页展示
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A = ('a', _('all')) # 所有页面展示
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S = ('s', _('slide')) # 幻灯片展示
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class BaseModel(models.Model):
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id = models.AutoField(primary_key=True)
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creation_time = models.DateTimeField(_('creation time'), default=now)
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last_modify_time = models.DateTimeField(_('modify time'), default=now)
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#ymq:定义模型基类,封装公共字段和方法(抽象类)
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id = models.AutoField(primary_key=True) # 自增主键
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creation_time = models.DateTimeField(_('creation time'), default=now) # 创建时间
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last_modify_time = models.DateTimeField(_('modify time'), default=now) # 最后修改时间
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def save(self, *args, **kwargs):
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#ymq:重写保存方法,处理slug生成和特殊更新逻辑
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# 判断是否是更新文章浏览量的操作
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is_update_views = isinstance(
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self,
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Article) and 'update_fields' in kwargs and kwargs['update_fields'] == ['views']
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if is_update_views:
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# 单独处理浏览量更新,提高性能
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Article.objects.filter(pk=self.pk).update(views=self.views)
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else:
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# 自动生成slug(用于URL友好化)
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if 'slug' in self.__dict__:
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# 根据title或name字段生成slug
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slug = getattr(
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self, 'title') if 'title' in self.__dict__ else getattr(
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self, 'name')
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@ -45,79 +53,88 @@ class BaseModel(models.Model):
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super().save(*args, **kwargs)
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def get_full_url(self):
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#ymq:生成包含域名的完整URL
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site = get_current_site().domain
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url = "https://{site}{path}".format(site=site,
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path=self.get_absolute_url())
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return url
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class Meta:
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abstract = True
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abstract = True # 声明为抽象模型,不生成数据库表
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@abstractmethod
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def get_absolute_url(self):
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#ymq:抽象方法,子类必须实现,用于生成模型实例的URL
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pass
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class Article(BaseModel):
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"""文章"""
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"""文章模型"""
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# 状态选项:草稿/已发布
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STATUS_CHOICES = (
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('d', _('Draft')),
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('p', _('Published')),
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)
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# 评论状态选项:开启/关闭
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COMMENT_STATUS = (
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('o', _('Open')),
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('c', _('Close')),
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)
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# 类型选项:文章/页面
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TYPE = (
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('a', _('Article')),
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('p', _('Page')),
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)
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title = models.CharField(_('title'), max_length=200, unique=True)
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body = MDTextField(_('body'))
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title = models.CharField(_('title'), max_length=200, unique=True) # 文章标题
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body = MDTextField(_('body')) # 文章内容(使用markdown编辑器)
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pub_time = models.DateTimeField(
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_('publish time'), blank=False, null=False, default=now)
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_('publish time'), blank=False, null=False, default=now) # 发布时间
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status = models.CharField(
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_('status'),
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max_length=1,
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choices=STATUS_CHOICES,
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default='p')
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default='p') # 发布状态
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comment_status = models.CharField(
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_('comment status'),
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max_length=1,
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choices=COMMENT_STATUS,
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default='o')
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type = models.CharField(_('type'), max_length=1, choices=TYPE, default='a')
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views = models.PositiveIntegerField(_('views'), default=0)
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default='o') # 评论状态
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type = models.CharField(_('type'), max_length=1, choices=TYPE, default='a') # 内容类型
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views = models.PositiveIntegerField(_('views'), default=0) # 浏览量
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author = models.ForeignKey(
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settings.AUTH_USER_MODEL,
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verbose_name=_('author'),
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blank=False,
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null=False,
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on_delete=models.CASCADE)
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on_delete=models.CASCADE) # 关联作者(外键)
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article_order = models.IntegerField(
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_('order'), blank=False, null=False, default=0)
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show_toc = models.BooleanField(_('show toc'), blank=False, null=False, default=False)
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_('order'), blank=False, null=False, default=0) # 排序序号
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show_toc = models.BooleanField(_('show toc'), blank=False, null=False, default=False) # 是否显示目录
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category = models.ForeignKey(
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'Category',
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verbose_name=_('category'),
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on_delete=models.CASCADE,
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blank=False,
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null=False)
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tags = models.ManyToManyField('Tag', verbose_name=_('tag'), blank=True)
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null=False) # 关联分类(外键)
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tags = models.ManyToManyField('Tag', verbose_name=_('tag'), blank=True) # 关联标签(多对多)
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def body_to_string(self):
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#ymq:返回文章内容字符串
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return self.body
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def __str__(self):
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#ymq:模型实例的字符串表示(文章标题)
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return self.title
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class Meta:
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ordering = ['-article_order', '-pub_time']
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ordering = ['-article_order', '-pub_time'] # 默认排序:先按排序号降序,再按发布时间降序
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verbose_name = _('article')
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verbose_name_plural = verbose_name
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get_latest_by = 'id'
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get_latest_by = 'id' # 按id获取最新记录
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def get_absolute_url(self):
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#ymq:生成文章详情页的URL
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return reverse('blog:detailbyid', kwargs={
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'article_id': self.id,
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'year': self.creation_time.year,
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@ -125,21 +142,24 @@ class Article(BaseModel):
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'day': self.creation_time.day
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})
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@cache_decorator(60 * 60 * 10)
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@cache_decorator(60 * 60 * 10) # 缓存10小时
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def get_category_tree(self):
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#ymq:获取当前文章所属分类的层级结构(含父级分类)
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tree = self.category.get_category_tree()
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names = list(map(lambda c: (c.name, c.get_absolute_url()), tree))
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return names
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def save(self, *args, **kwargs):
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#ymq:重写保存方法(可扩展自定义逻辑)
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super().save(*args, **kwargs)
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def viewed(self):
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#ymq:增加浏览量并保存
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self.views += 1
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self.save(update_fields=['views'])
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self.save(update_fields=['views']) # 只更新views字段,提高性能
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def comment_list(self):
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#ymq:获取文章的评论列表(带缓存)
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cache_key = 'article_comments_{id}'.format(id=self.id)
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value = cache.get(cache_key)
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if value:
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@ -147,67 +167,64 @@ class Article(BaseModel):
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return value
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else:
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comments = self.comment_set.filter(is_enable=True).order_by('-id')
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cache.set(cache_key, comments, 60 * 100)
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cache.set(cache_key, comments, 60 * 100) # 缓存100分钟
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logger.info('set article comments:{id}'.format(id=self.id))
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return comments
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def get_admin_url(self):
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#ymq:生成文章在admin后台的编辑URL
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info = (self._meta.app_label, self._meta.model_name)
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return reverse('admin:%s_%s_change' % info, args=(self.pk,))
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@cache_decorator(expiration=60 * 100)
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@cache_decorator(expiration=60 * 100) # 缓存100分钟
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def next_article(self):
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# 下一篇
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#ymq:获取下一篇文章(ID更大的已发布文章)
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return Article.objects.filter(
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id__gt=self.id, status='p').order_by('id').first()
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@cache_decorator(expiration=60 * 100)
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@cache_decorator(expiration=60 * 100) # 缓存100分钟
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def prev_article(self):
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# 前一篇
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#ymq:获取上一篇文章(ID更小的已发布文章)
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return Article.objects.filter(id__lt=self.id, status='p').first()
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def get_first_image_url(self):
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"""
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Get the first image url from article.body.
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:return:
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"""
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match = re.search(r'!\[.*?\]\((.+?)\)', self.body)
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"""从文章内容中提取第一张图片的URL"""
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match = re.search(r'!\[.*?\]\((.+?)\)', self.body) # 匹配markdown图片语法
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if match:
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return match.group(1)
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return ""
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class Category(BaseModel):
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"""文章分类"""
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name = models.CharField(_('category name'), max_length=30, unique=True)
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"""文章分类模型"""
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name = models.CharField(_('category name'), max_length=30, unique=True) # 分类名称
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parent_category = models.ForeignKey(
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'self',
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verbose_name=_('parent category'),
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blank=True,
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null=True,
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on_delete=models.CASCADE)
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slug = models.SlugField(default='no-slug', max_length=60, blank=True)
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index = models.IntegerField(default=0, verbose_name=_('index'))
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on_delete=models.CASCADE) # 父分类(自关联,支持多级分类)
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slug = models.SlugField(default='no-slug', max_length=60, blank=True) # URL友好化标识
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index = models.IntegerField(default=0, verbose_name=_('index')) # 排序索引
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class Meta:
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ordering = ['-index']
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ordering = ['-index'] # 按索引降序排列
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verbose_name = _('category')
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verbose_name_plural = verbose_name
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def get_absolute_url(self):
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#ymq:生成分类详情页的URL
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return reverse(
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'blog:category_detail', kwargs={
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'category_name': self.slug})
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def __str__(self):
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#ymq:模型实例的字符串表示(分类名称)
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return self.name
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@cache_decorator(60 * 60 * 10)
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@cache_decorator(60 * 60 * 10) # 缓存10小时
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def get_category_tree(self):
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"""
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递归获得分类目录的父级
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:return:
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"""
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"""递归获取当前分类的所有父级分类,形成层级结构"""
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categorys = []
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def parse(category):
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@ -218,12 +235,9 @@ class Category(BaseModel):
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parse(self)
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return categorys
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@cache_decorator(60 * 60 * 10)
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@cache_decorator(60 * 60 * 10) # 缓存10小时
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def get_sub_categorys(self):
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"""
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获得当前分类目录所有子集
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:return:
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"""
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"""获取当前分类的所有子分类(含多级子分类)"""
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categorys = []
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all_categorys = Category.objects.all()
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@ -241,136 +255,143 @@ class Category(BaseModel):
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class Tag(BaseModel):
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"""文章标签"""
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name = models.CharField(_('tag name'), max_length=30, unique=True)
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slug = models.SlugField(default='no-slug', max_length=60, blank=True)
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"""文章标签模型"""
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name = models.CharField(_('tag name'), max_length=30, unique=True) # 标签名称
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slug = models.SlugField(default='no-slug', max_length=60, blank=True) # URL友好化标识
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def __str__(self):
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#ymq:模型实例的字符串表示(标签名称)
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return self.name
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def get_absolute_url(self):
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#ymq:生成标签详情页的URL
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return reverse('blog:tag_detail', kwargs={'tag_name': self.slug})
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@cache_decorator(60 * 60 * 10)
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@cache_decorator(60 * 60 * 10) # 缓存10小时
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def get_article_count(self):
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#ymq:获取该标签关联的文章数量
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return Article.objects.filter(tags__name=self.name).distinct().count()
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class Meta:
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ordering = ['name']
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ordering = ['name'] # 按名称排序
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verbose_name = _('tag')
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verbose_name_plural = verbose_name
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class Links(models.Model):
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"""友情链接"""
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name = models.CharField(_('link name'), max_length=30, unique=True)
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link = models.URLField(_('link'))
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sequence = models.IntegerField(_('order'), unique=True)
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"""友情链接模型"""
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name = models.CharField(_('link name'), max_length=30, unique=True) # 链接名称
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link = models.URLField(_('link')) # 链接URL
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sequence = models.IntegerField(_('order'), unique=True) # 排序序号
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is_enable = models.BooleanField(
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_('is show'), default=True, blank=False, null=False)
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_('is show'), default=True, blank=False, null=False) # 是否显示
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show_type = models.CharField(
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_('show type'),
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max_length=1,
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choices=LinkShowType.choices,
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default=LinkShowType.I)
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creation_time = models.DateTimeField(_('creation time'), default=now)
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last_mod_time = models.DateTimeField(_('modify time'), default=now)
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default=LinkShowType.I) # 展示位置
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creation_time = models.DateTimeField(_('creation time'), default=now) # 创建时间
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last_mod_time = models.DateTimeField(_('modify time'), default=now) # 最后修改时间
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class Meta:
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ordering = ['sequence']
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ordering = ['sequence'] # 按排序序号排列
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verbose_name = _('link')
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verbose_name_plural = verbose_name
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def __str__(self):
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#ymq:模型实例的字符串表示(链接名称)
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return self.name
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class SideBar(models.Model):
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"""侧边栏,可以展示一些html内容"""
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name = models.CharField(_('title'), max_length=100)
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content = models.TextField(_('content'))
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sequence = models.IntegerField(_('order'), unique=True)
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is_enable = models.BooleanField(_('is enable'), default=True)
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creation_time = models.DateTimeField(_('creation time'), default=now)
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last_mod_time = models.DateTimeField(_('modify time'), default=now)
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"""侧边栏模型(可展示自定义HTML内容)"""
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name = models.CharField(_('title'), max_length=100) # 侧边栏标题
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content = models.TextField(_('content')) # 侧边栏内容(HTML)
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sequence = models.IntegerField(_('order'), unique=True) # 排序序号
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is_enable = models.BooleanField(_('is enable'), default=True) # 是否启用
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creation_time = models.DateTimeField(_('creation time'), default=now) # 创建时间
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last_mod_time = models.DateTimeField(_('modify time'), default=now) # 最后修改时间
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class Meta:
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ordering = ['sequence']
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ordering = ['sequence'] # 按排序序号排列
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verbose_name = _('sidebar')
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verbose_name_plural = verbose_name
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def __str__(self):
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#ymq:模型实例的字符串表示(侧边栏标题)
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return self.name
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class BlogSettings(models.Model):
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"""blog的配置"""
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"""博客全局配置模型"""
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site_name = models.CharField(
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_('site name'),
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max_length=200,
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null=False,
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blank=False,
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default='')
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default='') # 网站名称
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site_description = models.TextField(
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_('site description'),
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max_length=1000,
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null=False,
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blank=False,
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default='')
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default='') # 网站描述
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site_seo_description = models.TextField(
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_('site seo description'), max_length=1000, null=False, blank=False, default='')
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_('site seo description'), max_length=1000, null=False, blank=False, default='') # SEO描述
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site_keywords = models.TextField(
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_('site keywords'),
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|
max_length=1000,
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null=False,
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|
blank=False,
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default='')
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|
article_sub_length = models.IntegerField(_('article sub length'), default=300)
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sidebar_article_count = models.IntegerField(_('sidebar article count'), default=10)
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sidebar_comment_count = models.IntegerField(_('sidebar comment count'), default=5)
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article_comment_count = models.IntegerField(_('article comment count'), default=5)
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show_google_adsense = models.BooleanField(_('show adsense'), default=False)
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default='') # 网站关键词
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|
article_sub_length = models.IntegerField(_('article sub length'), default=300) # 文章摘要长度
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sidebar_article_count = models.IntegerField(_('sidebar article count'), default=10) # 侧边栏文章数量
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sidebar_comment_count = models.IntegerField(_('sidebar comment count'), default=5) # 侧边栏评论数量
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article_comment_count = models.IntegerField(_('article comment count'), default=5) # 文章页评论数量
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|
show_google_adsense = models.BooleanField(_('show adsense'), default=False) # 是否显示谷歌广告
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|
google_adsense_codes = models.TextField(
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_('adsense code'), max_length=2000, null=True, blank=True, default='')
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|
open_site_comment = models.BooleanField(_('open site comment'), default=True)
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|
global_header = models.TextField("公共头部", null=True, blank=True, default='')
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global_footer = models.TextField("公共尾部", null=True, blank=True, default='')
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_('adsense code'), max_length=2000, null=True, blank=True, default='') # 谷歌广告代码
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open_site_comment = models.BooleanField(_('open site comment'), default=True) # 是否开启网站评论
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|
global_header = models.TextField("公共头部", null=True, blank=True, default='') # 全局头部代码
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|
global_footer = models.TextField("公共尾部", null=True, blank=True, default='') # 全局尾部代码
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|
beian_code = models.CharField(
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|
|
'备案号',
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|
|
max_length=2000,
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|
null=True,
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|
blank=True,
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default='')
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|
default='') # 网站备案号
|
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|
analytics_code = models.TextField(
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|
|
"网站统计代码",
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|
|
max_length=1000,
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|
|
null=False,
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|
blank=False,
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|
default='')
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|
|
default='') # 统计分析代码
|
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|
|
show_gongan_code = models.BooleanField(
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|
|
|
'是否显示公安备案号', default=False, null=False)
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|
|
'是否显示公安备案号', default=False, null=False) # 是否显示公安备案号
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|
gongan_beiancode = models.TextField(
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|
'公安备案号',
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|
max_length=2000,
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|
null=True,
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|
blank=True,
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|
default='')
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|
default='') # 公安备案号
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|
comment_need_review = models.BooleanField(
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|
|
'评论是否需要审核', default=False, null=False)
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|
|
'评论是否需要审核', default=False, null=False) # 评论是否需要审核
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|
class Meta:
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|
verbose_name = _('Website configuration')
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|
|
verbose_name_plural = verbose_name
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|
|
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|
|
|
def __str__(self):
|
|
|
|
|
#ymq:模型实例的字符串表示(网站名称)
|
|
|
|
|
return self.site_name
|
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|
|
|
|
|
|
|
|
def clean(self):
|
|
|
|
|
#ymq:数据验证,确保全局配置只能有一条记录
|
|
|
|
|
if BlogSettings.objects.exclude(id=self.id).count():
|
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|
|
|
raise ValidationError(_('There can only be one configuration'))
|
|
|
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|
|
def save(self, *args, **kwargs):
|
|
|
|
|
#ymq:保存配置后清除缓存,确保配置立即生效
|
|
|
|
|
super().save(*args, **kwargs)
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|
|
from djangoblog.utils import cache
|
|
|
|
|
cache.clear()
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|
|
cache.clear()
|