Я пытаюсь получить аннотации, отображаемые в моих шаблонах.У меня есть две модели (model1 и model2), и я хочу показать количество model2, связанных с model1.
Вот мои views.py:
def model2_count(request, pk):
model2count = models.Model1.objects.filter(pk=model1.pk).annotate(title_count=Count(‘model2__title'))
return render(request, 'model1/_model1.html', {‘m2c’: model2count})
Вот шаблон (model1/_model1.html):
Я попробовал это:
{% for object in m2c %}</h3>
{{ object.title }}
{{ object.title_count }}
{% endfor %}
И попробовал это:
{% if m2c.title_count %}
{{ m2c.title_count }}
{% endif %}
Я дергал себя за это дляпару дней и не могу понять это.Следующее в значительной степени бесполезно:
Что расстраивает, что я могу 'Я даже не говорю , почему применение этих решений не работает.
Любой вклад приветствуется.
Также, вот мои модели со всеми убранными БС.
class Publication(models.Model):
title = models.CharField(max_length=150, unique=False, blank=False)
contributors_note = models.TextField(max_length=300, blank=False)
website = models.URLField()
publisher = models.CharField(max_length=250, unique=False)
publication_date = models.DateField(default=datetime.date.today)
slug = models.SlugField(allow_unicode=True, unique=False)
content_type = models.CharField(max_length=100, unique=False)# In this field user's define the type of content (blog, newspaper article, publication etc)
research_type = models.CharField(max_length=100, unique=False)# In this field user's define whether the research is based on primary or secondary research
user = models.ForeignKey(Current_user, related_name="publication")
created_at = models.DateTimeField(auto_now_add=True)
last_updated = models.DateTimeField(auto_now=True)
category = models.ForeignKey(Category, related_name="publication",null=True, blank=False)
comment = models.TextField()
def __str__(self):
return self.title
def save(self, *args, **kwargs):
self.slug = slugify(self.title)
super().save(*args, **kwargs)
def get_absolute_url(self):
return reverse(
"publication:single",
kwargs={
"username": self.user.username,
"pk": self.pk
}
)
class Meta:
ordering = ["-created_at"]
class Assessment(models.Model):
title = models.CharField(max_length=150, unique=False, blank=False)
publication = models.ForeignKey('publication.Publication', on_delete=models.CASCADE, related_name='assessment')
analyst = models.ForeignKey(Current_user, null=True, blank=True, related_name="assessment")
created_at = models.DateTimeField(auto_now_add=True)
approved_comment = models.BooleanField(default=False)
key_finding1 = models.TextField(max_length=300)
key_finding2 = models.TextField(max_length=300)
key_finding3 = models.TextField(max_length=300)
ratings_range = (
('1', 'Very Weak'),
('2', 'Weak'),
('3', 'Moderate'),
('4', 'Strong'),
('5', 'Very Strong'),
)
content_rating_1 = models.CharField(max_length=1, choices=ratings_range)
content_rating_1_comment = models.TextField(max_length=300)
content_rating_2 = models.CharField(max_length=1, choices=ratings_range)
content_rating_2_comment = models.TextField(max_length=300)
content_rating_3 = models.CharField(max_length=1, choices=ratings_range)
content_rating_3_comment = models.TextField(max_length=300)
content_rating_4 = models.CharField(max_length=1, choices=ratings_range)
content_rating_4_comment = models.TextField(max_length=300)
content_rating_5 = models.CharField(max_length=1, choices=ratings_range)
content_rating_5_comment = models.TextField(max_length=300)
source_rating_1 = models.CharField(max_length=1, choices=ratings_range)
source_rating_1_comment = models.TextField(max_length=300)
source_rating_2 = models.CharField(max_length=1, choices=ratings_range)
source_rating_2_comment = models.TextField(max_length=300)
source_rating_3 = models.CharField(max_length=1, choices=ratings_range)
source_rating_3_comment = models.TextField(max_length=300)
source_rating_4 = models.CharField(max_length=1, choices=ratings_range)
source_rating_4_comment = models.TextField(max_length=300)
source_rating_5 = models.CharField(max_length=1, choices=ratings_range)
source_rating_5_comment = models.TextField(max_length=300)
def approve(self):
self.approved_comment = True
self.save()
def __str__(self):
return self.title
class Meta:
ordering = ["-created_at"]