/TypeScript/Check if username exists in database django

Check if username exists in database django

class FormClass:
	username = ...
	def clean(self):
		super(FormClass, self).clean()
    	username = self.cleaned_data['username']
    	if User.objects.exclude(pk=self.instance.pk).filter(username=username).exists():
        	raise forms.ValidationError(f'Username "{username}" is already in use.')
    	return username

Source: stackoverflow.com

Similar codes

0 vote183 views1 answer
How to keep only certian objects python
TypeScript
0 vote207 views1 answer
How to send data between components in react using link
TypeScript
17 votes200 views4 answers
Pygame mouse events
TypeScript
1 vote198 views1 answer
Get minutes between two dates ts
TypeScript
0 vote217 views1 answer
Fonts @import vs link
TypeScript
2 votes187 views2 answers
Length array angular
TypeScript
0 vote314 views2 answers
Java to typescript
TypeScript
0 vote195 views1 answer
Typescript object destructuring
TypeScript
6 votes179 views1 answer
How to read excel file with multiple sheets in python
TypeScript
0 vote222 views1 answer
Git remove last two commits from branch
TypeScript