I want to set the value of a model field by performing an equation between other model fields. Here's my model:
class Current(models.Model):
time = models.IntegerField(default=0)
post_score = models.ForeignKey(PostScore, blank=True, null=True)
comment_score = models.ForeignKey(CommentScore, blank=True, null=True)
Say I want to create a new field called rate, which is calculated by:
(post_score + comment_score) / time
Is this possible?
Something like this:
models.py
class Current(models.Model):
....
def get_current_rate(self):
return (self.post_score + self.comment_score) / self.time
In views.py:
from mymodels import Current
def someview():
....
rate = Current.get_current_rate()