/Python/Django prevent duplicate entries

Django prevent duplicate entries

Django model remove duplicates

from django.db.models import Count
from app.models import Email

duplicate_emails = Email.objects.values('email').annotate(email_count=Count('email')).filter(email_count__gt=1)

Source: newbedev.com

Django prevent duplicate entries

for instance in Stock.objects.all():
			if instance.category == category:
				raise forms.ValidationError(str(category) + ' is already created')
		return category

Source: arbcoms.com

How to avoid inserting duplicate records in orm django

if not table.objects.filter(column1=values).exists():
    # Insert new data here
    table.objects.create(column1=v1, column2=v2)

Similar codes

2 votes278 views2 answers
Get the first item in a list in python 3
Python
2 votes355 views1 answer
Django try catch exception
Python Django
5 votes278 views2 answers
Value count a list python
Python
2 votes286 views1 answer
Graph implementation in python
Python
1 vote299 views2 answers
P-norm of a vector python
Python
1 vote277 views1 answer
Truncate add weird symbols in python
Python
45 votes266 views4 answers
Append to front of list python
Python
0 vote307 views2 answers
How to write a python script to find the value of x at a given y value
Python
1 vote288 views1 answer
Ls.ProgrammingError: permission denied for table django_migrations
Python
0 vote272 views1 answer
Python submatrix
Python