Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Using Databases in Python Gettin' CRUD-y With It CRUD: Delete Function

Posted by saif ahmad
saif ahmad
6,352 Points

crud : delete function

hello dono' whats wrong with my code! help me pls!

crud.py 
from models import Challenge


def create_challenge(name, language, steps=1):
    Challenge.create(name=name,
                     language=language,
                     steps=steps)


def search_challenges(name, language):
    return Challenge.select().where(
        Challenge.name.contains(name),
        Challenge.language==language
    )

def delete_challenge(Challenge):
    del Challenge

2 Answers

Benjamin Lange
Benjamin Lange
16,178 Points
Benjamin Lange
Benjamin Lange
16,178 Points

Your delete_challenge method is currently deleting the Challenge variable. You need to call the delete_instance method on the model class in order to delete the database entry. Also, change the name of your parameter "Challenge" to something else to avoid confusion. Try using Challenge.delete_instance(parameter_name).

saif ahmad
saif ahmad
6,352 Points
saif ahmad
saif ahmad
6,352 Points

i got it it should be

Challenge.delete_instance(parameter_name)

thanks it worked for me