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Python Using Databases in Python Meet Peewee First Queries

Posted by Ahmad Ezzeldin Etriby
Ahmad Ezzeldin Etriby
3,747 Points

i have been working on this challenge for like 2 hours, is this challenge valid?

i have been working on this challenge for almost 2 hours because it lacks the information needed in the question prompt. i keep trying o fetch data from the errors i get. i can't proceed with the modules until i pass this yet i find it very hard since i've been stuck on the same point for too long. the last error i got was "i don't see Ruby Booleans Challenge" which i'm pretty sure is there!! so what shall i do in order to fix my code or to bypass the challenge to proceed with my tutorials? also i would advice you add more details to the prompt as it is not logical to keep fetching for your requirements through error messages.

queries.py 
from peewee import *
db = SqliteDatabase('challenges.db')
class Challenge(Model):
    name = CharField( max_length = 100 )
    language = CharField( max_length = 100 )
    steps = IntegerField()
    class Meta:
        database = db

challenges = [ {'name' : 'Booleans', 'language' : 'Ruby', 'steps' : 2}, {'name' : 'Booleans', 'language' : 'Ruby', 'steps' : 5}, ]
all_challenges = Challenge.select(Challenge.name, Challenge.language, Challenge.steps)
def challenge_add():
    for challenge in challenges:
        Challenge.create(name=challenge['name'], language=challenge['language'], steps=challenge['steps'])
def sort():
    return all_challenges.order_by(Challenge.steps.asc())
db.connect()
db.create_tables([Challenge])
challenge_add()
sorted_challenges = sort()
Myers Carpenter
Myers Carpenter
6,421 Points

It's important to remember the challenges build on each step. Usually the code you write in step 1 stays the same for the rest of the steps.

In your code rather than import the Challenge from models.py you've actually wrote your own version of that class. Was there a reason to do that?

1 Answer

mhjp
mhjp
20,372 Points

Hi Ahmad, I think you might be over complicating this challenge. Below are the 4 lines of code needed to solve all 4 steps on this code challenge. let me know if there is something that you are unsure of, or not understanding.

from models import Challenge

all_challenges = Challenge.select()

Challenge.create(name='Booleans', language='Ruby')

sorted_challenges = all_challenges.order_by(Challenge.steps.asc())