CODEWITHSUNDEEP
djangomodelfield
Ashutosh Gupta
Ashutosh Gupta

Reputation: 31

Django update an object using models.Field object

I have dozens of fields in a Django model.

class Question(models.Model):
op1 = models.CharField(verbose_name="Option 1",max_length=500,null=True,blank=True)
op2 = models.CharField(verbose_name="Option 2",max_length=500,null=True,blank=True)
op3 = models.CharField(verbose_name="Option 3",max_length=500,null=True,blank=True)
....

I want to write a function

def update_ith_option_of_question( q, i, val):
     op = d._meta.get_field('op'+str(i))
     # I want to save val in field op of object q

How do I write the above function?

Upvotes: 0

Views: 21

Answers (1)

Lucas Moeskops
Lucas Moeskops

Reputation: 5443

Use Python's setattr.

def update_ith_option_of_question(q, i, val):
    setattr(q, f'op{i}', val)
    q.save()

Also, using f'' strings for formatting is more readable.

Upvotes: 1

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