快速提问 - 我不确定处理此问题的正确方法是什么。基本上我希望定义一个自定义标签,它处理一些逻辑然后返回模型Post的所有帖子,其中is_featured字段设置为True。我已经尝试了很多途径来实现这个目标,但没有一个有效。我的最后一个coherant"猜测"如下:
templatetags / blog_tags.py:
@register.inclusion_tag('blog/post/featured_posts.html')
def show_featured_posts(count=4):
"""Return 4 of the most recent posts (of model: 'Post') that has the variable is_featured set to True."""
if Post.is_featured:
featured_posts = Post.published.order_by('-publish')[:count]
return { 'featured_posts': featured_posts}
models.py(有用位):
class PublishedManager(models.Manager):
def get_queryset(self):
return super(PublishedManager, self).get_queryset().filter(status='published')
class Post(models.Model):
STATUS_CHOICES = (
('draft', 'Draft'),
('published', 'Published'),
)
POST_TYPES = (
('news', 'News'),
('feature', 'Feature'),
('review', 'Review'),
)
title = models.CharField(max_length=250)
slug = models.SlugField(max_length=250, unique_for_date='publish')
author = models.ForeignKey(UserProfile, related_name='blog_posts')
body = models.TextField()
lead_in = models.CharField(max_length=500, default='')
#These next items shall contain our development information for game reviews - this is much like the lead_in:
platform = models.CharField(max_length=1000, default='')
publisher = models.CharField(max_length=1000, default='')
developer = models.CharField(max_length=1000, default='')
release = models.DateTimeField(default=timezone.now)
is_featured = models.BooleanField(default=False)
#Out blog layout dictates each featurette has up to three scrolling images associated to it:
image_scroll_1 = models.ImageField(storage=site_media_upload_location, null=True, blank=True)
image_scroll_2 = models.ImageField(storage=site_media_upload_location, null=True, blank=True)
image_scroll_3 = models.ImageField(storage=site_media_upload_location, null=True, blank=True)
type = models.CharField(max_length=10,choices=POST_TYPES,default='review')
publish = models.DateTimeField(default=timezone.now)
created = models.DateTimeField(auto_now_add=True)
updated = models.DateTimeField(auto_now=True)
status = models.CharField(max_length=10,choices=STATUS_CHOICES,default='draft')
rating = models.PositiveSmallIntegerField(default=10)
wrap_header = models.CharField(max_length=250, default='')
wrap_up = models.TextField(default='')
disclaimer = models.TextField(default='')
objects = models.Manager()
published = PublishedManager()
tags = TaggableManager()
class Meta:
ordering = ('-publish',)
def __str__(self):
"""Return the state title of the post"""
return self.title
def get_absolute_url(self):
"""Get absolute_url path specific to this post."""
return reverse('blog:post_detail', args = [self.publish.year, self.publish.strftime('%m'), self.publish.strftime('%d'), self.slug])
def get_image(self):
"""Get upload_to path specific to this photo."""
return self.image.url
这就是我认为我需要包含的所有内容 - 我已准备好featured_posts.html
模板,所以我不认为问题在于此。它完全在blog_tags.py
文件中。
答案 0 :(得分:0)
替换blog_tags.py中的以下代码
if Post.is_featured:
featured_posts = Post.published.order_by('-publish')[:count]
到
featured_posts = Post.published.filter(is_featured=True).order_by('-publish')[:count]