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


Unit Project 4: Wrong number of product Id's

I am reading the CSV file using dict reader, but I am getting the wrong number of product Id's, 83 instead of 26. I am assuming it's somewhere in my add_csv function, probably a loop, but I need help with it. Can anyone let me know where I am making the mistake.

Here is my app file:

from models import (Base, session, Product, engine)
import datetime
import csv
import time

def menu():
    choice =input(''' 
    \n***** Main Menu *****
    \rPlease make a selection
    \rPress 'v' View details
    \rPress 'a' to add item
    \rpress 'b' to make a back up of all contets
    \rPress 'e' to exit
    \rMake your selection: ''')

    if choice in ['v', 'a', 'b', 'e' ]:
        return choice

def clean_date(date_str):
        date_object = datetime.datetime.strptime(date_str, "%m/%d/%Y")
        format_date =date_object.strftime("%Y-%m-%d")
        return_date = datetime.datetime.strptime(format_date, '%Y-%m-%d').date()

    except ValueError:
        input( ''' 
            \n******** DATE ERROR *********
            \rThe Date format should inlcude a valid Month Day, Year from the past
            \rExample: January 13, 2003
            \rPress ENTER to try again

        return return_date

def clean_price(price_str):
    cleaned_price = float(price_str.strip("$"))
    cleaned_price = float(cleaned_price)
    cleaned_price = int(cleaned_price * 100)
    return cleaned_price

def clean_id(id_str, options):
        book_id = int(id_str)
        input( f''' 
            \n******** Id ERROR *********
            \rId must be a number.
            \rPress ENTER to try again
        if book_id in options:
            return book_id
            input( ''' 
            \n******** Id ERROR *********
            \r Options are: {my_options}.
            \rPress ENTER to try again

def add_csv():
    with open('inventory.csv') as csvfile:
        data = csv.DictReader(csvfile)
        new_data =[]
        for row in data:
            clean_rows = {}
            clean_rows['product_name'] = row['product_name']
            prices = row.get('product_price', 'N/A')
            prices = clean_price(prices)
            clean_rows['product_price'] = prices
            quants = row['product_quantity']
            quants = int(quants)
            clean_rows['product_quantity'] = quants
            dates = row.get('date_updated', 'N/A')
            dates = clean_date(dates)
            clean_rows['date_updated'] = dates
    for item in new_data:
        product = Product(**item)

def app():
    app_running = True
    while app_running:
         choice = menu()
         if choice == 'v':
            id_options = []
            for item in  session.query(Product):
            id_error = True
            while id_error:
                pick_id = input(f'''
                \nId options = {id_options}
                \rMake your selection: ''')
                pick_id = clean_id(pick_id, id_options)
                if type(pick_id) == int:
                    id_error = False
            the_product = session.query(Product).filter(Product.product_id == pick_id).first()
                  \nProduct name: {the_product.product_name}
                  \rProduct Price: ${(the_product.product_price) / 100}
                  \rStock:  {the_product.product_quantity}
                  \rStock updated on: {(the_product.date_updated)}  
            input('Press ENTER to continue')

         elif choice == 'a':

         elif choice ==  'b':

            print("Inventory Closing: Goodbye!")
            app_running = False

if __name__ == "__main__":
    for item in  session.query(Product):

Here is my model file:

from sqlalchemy import (create_engine, Column, 
                        String, Integer, Date)
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker

engine = create_engine('sqlite:///inventory.db.', echo = False)
Session = sessionmaker(bind = engine)
session = Session()
Base = declarative_base()

class Product(Base):
    __tablename__ = 'Products'
    product_id = Column(Integer, primary_key= True)
    product_name = Column('Name',String )
    product_price = Column('Price', Integer)
    product_quantity = Column('Quantity', Integer)
    date_updated = Column('Date Updated', Date)

def __repr__(self):
        return (f'Name: {self.product_name} Quantity: {self.product_quantity} Price:{self.product_price} Date Updated: {self.date_updated}') 

1 Answer

Jeff Muday
Jeff Muday
Treehouse Moderator 28,715 Points

I don't know the exact nature of your program.

Perhaps you added your data multiple times (during multiple runs) rather than starting with a "clean" database?