如何將此MySQL查詢轉換爲Django查詢？

Question

我有這樣的查詢：

select files_id, count(DISTINCT shared_user_id) FROM fileupload_share GROUP BY files_id; 

，我想在Django查詢轉換。試過這樣的：

count = Share.objects.filter(users_id=request.user.id).values_list('shared_user_id').distinct().count() 

但沒有給我一個所需的輸出組。我想在一個列表中返回像

count = [1, 2, 3, 1] 

models.py輸出：

class Share(models.Model): 
    users = models.ForeignKey(User) 
    files = models.ForeignKey(File) 
    shared_user_id = models.IntegerField() 
    shared_date = models.TextField() 

class File(models.Model): 
    users = models.ForeignKey(User) 
    file_name = models.CharField(max_length=100) 
    type = models.CharField(max_length=10) 
    source = models.CharField(max_length=100) 
    start_date = models.TextField() 
    time_overview = models.CharField(max_length=55) 
    end_date = models.TextField() 
    duration = models.TextField() 
    size_overview = models.IntegerField() 
    size = models.TextField() 
    flag = models.TextField() 
    flag_r = models.TextField() 

我怎麼能這樣做？由於

Answer 1

嘗試是這樣的：

files = File.objects.filter(users_id=request.user.id).annotate(count=Count('share__shared_user_id') 

那麼你應該有

for f in files: 
    print f.file_name, f.count