Pydja

@python_django_

Let's Learn Python & Django together :)

4月 2022に登録

7ポスト 6フォロワー 1フォロー中

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Pydja

@python_django_

2022/04/14

ForeignKey.related_name The name is used for feedback from the associated model. Also the default value for related_query_name (the feedback name used when filtering the query result). If you don't want Django to create feedback, set related_name to '+' or add '+' at the end

Pydja

@python_django_

2022/04/14

By default, a FileField instance is created as a varchar column in the database. As with other fields, you can change the maximum length using the max_length argument.

Pydja

@python_django_

2022/04/14

A little about FileField and ImageField. To improve performance, files are not stored in the database. Files and images are stored in MEDIA ROOT. All that will be saved in the database is the path to the file!

Pydja

@python_django_

2022/04/14

The auto_now and auto_now_add options will always use the date in the default timezone at the moment of creation or update, which is determined in settings.py

Pydja

@python_django_

2022/04/14

DateField.auto_now_add=True -> The field value will be automatically set to the current date when the object is created (first saved). Useful for storing creation time.

Pydja

@python_django_

2022/04/14

DateField.auto_now=True ->The field value will be automatically set to the current date each time the object is saved (when calling Model.save()). The field isn’t updated when making updates to other fields in other ways such as QuerySet.update() #django