[Django] What to do if the model you want to create has a large number of fields

I want to create an object

models.py


from django.db import models

class Human(models.Model):
     name = models.CharField('name', max_length=200)
     age = models.IntegerField('age', null=True, blank=True)

     def __str__(self):
         return self.name

Normally, when you create an object in Django, you write it like this:

taro = Human.objects.create(name='Taro', age=30)
taro.save()

hanako = Human(name='Hanako', age=2)
hanako.save()

There should be no problem.

What would you do in such a case?

models.py


class TestModel(models.Model):
    field_1 = models.CharField('Field 1', max_length=255)
    field_2 = models.CharField('Field 2', max_length=255)
    ...
    field_50 = models.IntegerField('Field 50', null=True)

    def __str__(self):
        return self.field_23

A case where you want to input a DB from a CSV file with 50 items through Django's ORM. If you try to do it like a Ueno Human model

df = pd.read_csv('test_data.csv')

for _, row in df.iterrows():
    t = TestModel.objects.create(field_1=row[0], field_2=row[1], field_3=row[2]....)

It's not crazy to write 50 pieces.

Pass it as an argument while expanding it into a dictionary!

df = pd.read_csv('test_data.csv')

for _, row in df.iterrows():
    dict_data = row.to_dict()
    t = TestModel.object.create(**dict_data)

smart!

In Python, you can pass a list, tuple, or dictionary as a function argument while expanding it.

reference

https://note.nkmk.me/python-argument-expand/

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