ZAMYLA CHAN: Our users have got to make cash somehow.
So let's allow them to sell some of their stocks.
For this, you'll need to display a form for the user to sell their stocks.
I'll leave this up to you because we've already
had practice at this point creating HTML forms and new templates.
Once you're done, come back to me and let's remove that stock
from the user's portfolio.
You can either, depending on the structure of your database,
use the DELETE FROM query, or perhaps you'll
want to log that sale as maybe a negative quantity in the user's
portfolio.
Finally, you'll want to make sure that you
update the user's cache, remembering that every stock is
going to be sold at its current price.