Awesome, it works, thanks!
On Saturday, June 22, 2013 4:52:34 PM UTC+2, Goran wrote:
>
> Just add related name to the artist field in the Drawinds model artist =
> models.ForeignKey(Artist, related_name='drawings')
>
> Then you can use X.drawings.count() when is needed. It also works in the
> template, Let say that you have list with some artists named 'foo' so in
> the template you can count his drawings on the following way:
>
> {% for x in foo %}
>
> {{ x }} - {{ x.drawings.count }}
>
> {% endfor %}
>
> It will be displayed as:
> Donatello - 24
> Michelangelo - 14
>
> On Saturday, June 22, 2013 4:36:54 PM UTC+2, thomaaaas wrote:
>>
>> Hello,
>>
>> In my model I have artists and drawings. Each drawing has
>> a ForeignKey(Artist)
>> I'm trying to count the number of drawings each artist has, but I don't
>> know how to do it...
>> Below a simplified version of my code.
>>
>> class Artist(models.Model):
>> name = models.CharField(max_length=140)
>>
>> def number_of_drawing(self):
>> return drawing.count() # how to do this ?
>>
>> class Drawing(models.Model):
>> artist = models.ForeignKey(Artist)
>> description = models.TextField()
>>
>> Can you help me write the number_of_drawing function?
>> Thanks!
>>
>>
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