1
00:00:00,000 --> 00:00:00,912


2
00:00:00,912 --> 00:00:01,870
DAVID MALAN: All right.

3
00:00:01,870 --> 00:00:04,960
And now one final flourish,
a personal touch that

4
00:00:04,960 --> 00:00:06,907
really makes CS50 Finance your own.

5
00:00:06,907 --> 00:00:09,490
Now, in addition to changing the
aesthetics of the site, which

6
00:00:09,490 --> 00:00:12,590
you are welcome to do-- which
is particularly easy because

7
00:00:12,590 --> 00:00:13,790
of our use of Bootstrap.

8
00:00:13,790 --> 00:00:17,340
Indeed per the specification, we
point you at some alternative themes

9
00:00:17,340 --> 00:00:20,350
or templates that you can use,
simply changing the Bootstrap

10
00:00:20,350 --> 00:00:22,430
URL to some other that
will completely change

11
00:00:22,430 --> 00:00:25,980
the colors and aesthetics of
your site in one fell swoop.

12
00:00:25,980 --> 00:00:28,970
But for this personal touch, we're
looking for something functional.

13
00:00:28,970 --> 00:00:31,900
We're looking for a change to your
Python code that actually gives

14
00:00:31,900 --> 00:00:34,320
the user some new feature to enjoy.

15
00:00:34,320 --> 00:00:36,830
So among the possibilities
are these-- empowering

16
00:00:36,830 --> 00:00:38,729
users to change their passwords.

17
00:00:38,729 --> 00:00:40,520
So once a user is
already logged in, if you

18
00:00:40,520 --> 00:00:42,710
want to empower him or her
to change their password,

19
00:00:42,710 --> 00:00:44,830
probably you're going to
need some kind of form

20
00:00:44,830 --> 00:00:47,077
and you're probably going
to need some kind of route

21
00:00:47,077 --> 00:00:49,160
that actually handles the
processing of that form,

22
00:00:49,160 --> 00:00:52,810
and specifically changes that user's
table, storing not their password

23
00:00:52,810 --> 00:00:56,660
per se, but that same hash
thereof, a la register.

24
00:00:56,660 --> 00:00:59,870
You can empower users to add additional
cache [? to ?] [? their ?] account.

25
00:00:59,870 --> 00:01:01,578
Now, in the real world
you would actually

26
00:01:01,578 --> 00:01:03,670
have to deposit physical
money into a bank

27
00:01:03,670 --> 00:01:06,180
or send someone a check
or some other mechanism.

28
00:01:06,180 --> 00:01:08,310
Here it suffices just to
type how much more money

29
00:01:08,310 --> 00:01:11,260
you want to add to your account
and, implemented as such, again,

30
00:01:11,260 --> 00:01:13,640
modifying most likely the user's table.

31
00:01:13,640 --> 00:01:16,240
But again, error checking
as always, so that if you

32
00:01:16,240 --> 00:01:19,780
type in alphabetical characters
or negative characters

33
00:01:19,780 --> 00:01:23,570
or anything else that isn't an
actual dollar amount, odds are you're

34
00:01:23,570 --> 00:01:25,540
going to want to apologize to the user.

35
00:01:25,540 --> 00:01:28,010
You might also empower
users to buy more shares

36
00:01:28,010 --> 00:01:31,410
or sell shares of stock they already
own via your index route itself.

37
00:01:31,410 --> 00:01:33,160
So recall that after
you've logged in, you

38
00:01:33,160 --> 00:01:37,120
see that HTML table of your entire
portfolio-- all of the stocks you own

39
00:01:37,120 --> 00:01:38,380
and how much cash you have.

40
00:01:38,380 --> 00:01:42,710
But by default, we force the user
to go to a buy page or a sell page,

41
00:01:42,710 --> 00:01:46,120
where they need to manually input
the symbol and number of shares

42
00:01:46,120 --> 00:01:47,670
that they want to buy or sell.

43
00:01:47,670 --> 00:01:50,770
This seems logically
unnecessary because you already

44
00:01:50,770 --> 00:01:53,200
know which symbols a user
owns, and you already

45
00:01:53,200 --> 00:01:57,200
know how many shares he or
she owns of those stocks.

46
00:01:57,200 --> 00:02:02,060
So surely, you could
programmatically, on that index page,

47
00:02:02,060 --> 00:02:06,390
display for the user some hyperlinks
that allow them to simply click

48
00:02:06,390 --> 00:02:08,530
or maybe [INAUDIBLE]
HTML form buttons that

49
00:02:08,530 --> 00:02:13,905
allows them to click those and begin the
process of buying or selling instantly.

50
00:02:13,905 --> 00:02:16,780
So we leave it to you to decide
exactly how you might implement this.

51
00:02:16,780 --> 00:02:19,000
But this is arguably a
better user experience,

52
00:02:19,000 --> 00:02:20,800
because it's a lot
easier to buy and sell,

53
00:02:20,800 --> 00:02:23,675
and you don't have to remember the
symbols yourself by typing them in

54
00:02:23,675 --> 00:02:26,110
manually, as is the default scenario.

55
00:02:26,110 --> 00:02:29,330
And then lastly, empower users with
some other feature of comparable scope.

56
00:02:29,330 --> 00:02:31,980
Deliberately generally written,
you're welcome to consult

57
00:02:31,980 --> 00:02:35,020
your TF or the course's heads
as to what's reasonable scope.

58
00:02:35,020 --> 00:02:37,620
But in general, this should
take a number of lines of code

59
00:02:37,620 --> 00:02:41,970
that actually give your website some
newfound capability, some new feature

60
00:02:41,970 --> 00:02:46,180
that's compelling, that's very
much in the spirit of these others.

61
00:02:46,180 --> 00:02:49,411