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from django.db import models
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from django.core.urlresolvers import reverse
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from django.conf import settings
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class Article(models.Model):
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STATUS_CHOICES = (
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('d', '草稿'),
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('p', '发表'),
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)
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title = models.CharField('标题', max_length=200)
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body = models.TextField('正文')
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created_time = models.DateTimeField('创建时间', auto_now_add=True)
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last_mod_time = models.DateTimeField('修改时间', auto_now=True)
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pub_time = models.DateTimeField('发布时间', blank=True, null=True,
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help_text="不指定发布时间则视为草稿，可以指定未来时间，到时将自动发布。")
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status = models.CharField('文章状态', max_length=1, choices=STATUS_CHOICES)
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summary = models.CharField('摘要', max_length=200, blank=True, help_text="可选，若为空将摘取正文的前54个字符。")
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views = models.PositiveIntegerField('浏览量', default=0)
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author = models.ForeignKey(settings.AUTH_USER_MODEL, verbose_name='作者', on_delete=models.CASCADE)
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category = models.ForeignKey('Category', verbose_name='分类', on_delete=models.CASCADE)
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tags = models.ManyToManyField('Tag', verbose_name='标签集合', blank=True)
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def __str__(self):
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return self.title
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class Meta:
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ordering = ['-pub_time']
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verbose_name = "文章"
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verbose_name_plural = verbose_name
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def get_absolute_url(self):
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return reverse('blog:detail', kwargs={'article_id': self.pk})
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def save(self, *args, **kwargs):
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self.summary = self.summary or self.body[:120]
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super().save(*args, **kwargs)
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def viewed(self):
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self.views += 1
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self.save(update_fields=['views'])
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class Category(models.Model):
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name = models.CharField('分类名', max_length=30)
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created_time = models.DateTimeField('创建时间', auto_now_add=True)
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last_mod_time = models.DateTimeField('修改时间', auto_now=True)
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class Meta:
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ordering = ['name']
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verbose_name = "分类"
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verbose_name_plural = verbose_name
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def __str__(self):
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return self.name
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class Tag(models.Model):
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name = models.CharField('标签名', max_length=30)
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created_time = models.DateTimeField('创建时间', auto_now_add=True)
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last_mod_time = models.DateTimeField('修改时间', auto_now=True)
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def __str__(self):
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return self.name
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class Meta:
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ordering = ['name']
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verbose_name = "标签"
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verbose_name_plural = verbose_name
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