Comments for Learn | Think | Code

Comment on CS50 Week 1: Walkthroughs by Mazen Mohamed

Mazen Mohamed — Tue, 22 Dec 2020 11:42:20 +0000

Thank you

Comment on Problem Set 7: CS50 Finance by Eric P

Eric P — Thu, 27 Aug 2020 23:21:53 +0000

In reply to Johnny.

Thank you for the tip. I have now added the correct tables and values inside but I get this error: self.c.execute(‘INSERT INTO transactions VALUES (?,?,?,?,?,?)’, (self.id,) + row)
sqlite3.IntegrityError: UNIQUE constraint failed: transactions.user_id

My transaction table contains the following in order from col 0 to 5: user_id, type, symbol, price, shares, date_time. WHat am I dong wrong?

Comment on Problem Set 7: CS50 Finance by Johnny

Johnny — Thu, 27 Aug 2020 14:20:42 +0000

In reply to Eric P. Hi Eric, Correct, I would take a look in at what tables you have in the terminal. Do a quick google for sqlite commands to view all tables. Thanks for your comment!

Comment on Problem Set 7: CS50 Finance by Eric P

Eric P — Thu, 27 Aug 2020 11:56:18 +0000

Hi thank you very much for posting this. It helped a lot. When I run your code i get this error: self.c.execute(‘SELECT * FROM transactions where user_id=?’, (self.id))
sqlite3.OperationalError: no such table: transactions.
Do I have to create the table even though it seems likes its already been created?

Comment on Problem Set 7: CS50 Finance by Johnny

Johnny — Mon, 03 Aug 2020 00:13:44 +0000

In reply to jacob.

Thank you! It’s their balance, and some other stuff too. Check out the code starting on line 42 here:
https://gist.github.com/sojohnnysaid/46a9143472ef0c8eb906da159837b47b#file-application-py

Comment on Problem Set 7: CS50 Finance by jacob

jacob — Sun, 02 Aug 2020 23:54:23 +0000

This is amazing, great job. I have a question though… What all goes into the portfolio table and what is each variables types? This is the only thing which is confusing me.
Thank You!!!

Comment on Problem Set 7: CS50 Finance by Matt

Matt — Wed, 22 Jul 2020 04:09:40 +0000

In reply to Johnny. Thanks, turns out self.id and row had 5 values, and the table transactions had 6, just got rid of a column on the table and it works.

Comment on Problem Set 7: CS50 Finance by Johnny

Johnny — Tue, 21 Jul 2020 19:48:14 +0000

In reply to Matt. I would print() the self.id and row and see what you are working with. Then I would make sure those question marks add up to the same number of values. Good luck!

Comment on Problem Set 7: CS50 Finance by Matt

Matt — Tue, 21 Jul 2020 17:12:52 +0000

In reply to Johnny.

Got it, I added all the correct tables and fixed this. But I’ve come up with another problem. I keep on getting this error when going to buy stocks:

self.c.execute(‘INSERT INTO transactions VALUES (?,?,?,?,?,?)’, (self.id,) + row)
sqlite3.ProgrammingError: Incorrect number of bindings supplied. The current statement uses 6, and there are 5 supplied.

After pressing buy I get the error, but on the homepage i’ve got the correct info with shares, costs, etc. This has puzzled me for some time. Again, sorry to bother you!

Comment on Problem Set 7: CS50 Finance by Johnny

Johnny — Tue, 21 Jul 2020 12:26:10 +0000

In reply to Michael Ofengenden. Check the code examples where I use c.execute and you will find all the table names.