I want to find the number of articles for which a specific user has created
articlehistoryrecords.
The models for that look like this:
class Article(models.Model):
"""The basic entity of this app.)"""
documentID = models.CharField(blank=True, max_length=1000)
cowcode = models.IntegerField(blank=True, null=True)
pubdate = models.DateField(default=datetime.datetime.today)
headline = models.CharField(blank=True, max_length=1500)
source = models.CharField(blank=True, max_length=5000)
text = models.TextField(blank=True, max_length=1000000)
assignments = models.ManyToManyField(Assignment)
class Meta:
ordering = ['pubdate']
def __unicode__(self):
return self.headline
class ArticleHistory(models.Model):
"""(Modelname description)"""
article = models.ForeignKey(Article, related_name='Article History')
coder = models.ForeignKey(User, related_name='Article History')
last_updated = models.DateTimeField(default=datetime.datetime.now)
def __unicode__(self):
return self.last_updated
The way I'm trying to do this at the moment is like this:
assignment.finished_articles =
Article.objects.filter(cowcode=country).filter(pubdate__range=(start_date,end_date),
articlehistory__coder=request.user.id).count()
This doesn't work, however and exhibits another weird behaviour:
I try to do this:
for assignment in assignments:
country = assignment.country.cowcode
start_date = assignment.start_date
end_date = assignment.end_date
articles =
Article.objects.filter(cowcode=country).filter(pubdate__range=(start_date,end_date)).select_related()
assignment.article_num = articles.count()
#assignment.finished_articles =
Article.objects.filter(cowcode=country).filter(pubdate__range=(start_date,end_date),
articlehistory__coder=request.user.id).count()
This works fine, unless I try to include finished_articles, then article_num
gets
shortened to one result.
It would be really great if anyone has a pointer to who to solve this.
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