On 11/08/2019 3:25 am, aman kumar wrote:
hello...
While using field type null ...
what is difference between "Empty string" and Null=True i.e null
......value for "no data" in string based field...........?
Empty string is ""
Django likes to convert str=None (ie no value) into an empty string
depending on the RDBMS.
https://docs.djangoproject.com/en/2.1/ref/databases/#null-and-empty-strings
https://docs.djangoproject.com/en/2.1/ref/forms/fields/#django.forms.Field.required
From the latter link ...
"If a |Field| has |required=False| and you pass |clean()| an empty
value, then |clean()| will return a /normalized/ empty value rather than
raising |ValidationError|. For |CharField|, this will be an empty
string. For other |Field| classes, it might be |None|. (This varies from
field to field.)"
It looks like you might have used an existing thread to ask your
question. It is always best to start a new thread when you have a new
question.
Cheers
Mike
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