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One last model to set up a form and views for. Let's get some Answers!
We have a pretty good handle on
creating and editing our quizzes and
0:00
questions, but
we're really short on creating answers.
0:03
Let's go make a view and form for answers.
0:06
So, I wanna be able to add
an answer to a question.
0:09
So for instance,
right now we have this question,
0:13
what all characters can be in a string?
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Be nice to be able to
add an answer to this.
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So, let's see about doing that.
0:19
So, let's start here on
our question form and
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in this div here let's do,
if user.is_authenticated,
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and then we'll end our if.
0:35
Let's throw in an <hr>, just to put
a little bit of separation there.
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And then a href, for right now,
I guess, "#" class=button.
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And we'll say, Add Answer.
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All right, so, that's cool.
0:58
We've got a way to add the answers.
1:00
Let's go refresh this and
make sure it shows up.
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There we go, Add Answer.
1:05
All right, and so, we should go
about figuring out the rest of this.
1:07
First thing we need is we're
gonna need a form, obviously.
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So let's go down here and
make a new class, and
1:17
we'll call it AnswerForm and
(forms.ModelForm).
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I mean,
you should all have this pretty much
1:28
figured out by now, model=models.answer.
1:33
Fields equals, and let's just put
in order and text and correct.
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I think that if we look at our models,
1:46
we'll see that those are,
yep, order text and correct.
1:49
So, those are the things
that we wanna have.
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All right ,so we'll save that.
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So there we go, we've got our form and
we've got a link.
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Let's go make a URL for that.
2:02
So, down here somewhere And
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we'll do [SOUND], and
we'll have a question_pk,
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cuz we need to know which
question the answer belongs to.
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And then, we'll say create_answer.
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And that's it, because we're just
going straight to creating the answer.
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If you wanna make a edit answer whatever,
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then obviously that's the thing
you're gonna bring in here.
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Views.answer_form and
name=' create_answer'.
2:42
All right, so.
2:48
Yeah, all right.
2:51
So then, we can go change this, our URL,
2:53
to be url 'courses:add_answer", right.
2:57
Or was it create_answer,
it's create_answer.
3:01
And then, we'll say question_pk =.
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And that will be Our form.instance.pk.
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So, that means we probably wanna do,
if user.is_authenticated and
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form.instance.pk.
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So, that way we know
the user is authenticated.
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So in our case, it's a super user or it's
someone who can log in to admin, at least.
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And here we know that we're working on an
instance, because we don't wanna try and
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add answers to a question
that doesn't exist yet.
3:40
So, cool.
3:44
There's that.
Let's go back and
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make sure this button still shows up.
3:47
Oh, that's right.
3:52
We don't have our view answer form yet.
3:53
So, @login_required.
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Answer form, it'll take request.
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And question_pk.
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And we'll just do pass for
now and refresh.
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All right, cool.
4:12
And there's our Add Answer.
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And that shows up because
we have saved this.
4:13
Looks like our URL's a little weird,
though.
4:17
[SOUND] Oh yeah,
because we forgot to close that.
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Hopefully, some of you didn't make
that same mistake that I did.
4:26
There we go.
4:29
That's a URL that looks like we want.
4:30
All right, great.
4:32
So, we've got our link in the template,
we've got our URL, we've got our form.
4:33
So, let's go see about making our view.
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And so right now, we're not doing
this to where we can edit anything,
4:44
you can add that in later if you want.
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Let's start with getting the question, so
4:52
get_object_or_404(models.Question, pk
is going to be question_pk).
4:55
All right, so that's our question.
5:04
And we, of course,
we would wanna do form=forms.AnswerForm().
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If request.method is equal to 'POST':,
5:13
if form., I almost forgot step.
5:19
Oh, no.
5:23
And here, we're gonna do
form=forms.AnswerForm(request.POST).
5:25
Fill in the stuff that people gave us.
5:33
Then if that form is valid, then we wanna
5:36
do answer=form.save(commit=False),
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answer.question=question, answer.save.
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And then this is where we'd wanna do like,
a message,
5:51
so messages.success(request,
"Answer added").
5:56
I mean, we're basically recreating
what we did right up here.
6:06
All right.
6:10
And then we'd wanna do return
6:13
HttpResponseRedirect reverse,
actually do our
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So, our questions have an absolute URL,
so let's just do that.
6:27
(question.get_absolute_url()).
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All right.
And if we're not in a post,
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then we just want to do
return render(request,
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"courses/answer_form.html" and
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let's send out 'question':, ask question.
6:51
Let's put this on a new line,
that's getting too long for me.
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And 'form': form.
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All right.
7:09
So now we just gonna
make that answer form.
7:10
So new file, answer_form.html.
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And I have a feeling on answer_form,
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we can copy a lot of stuff
here from question_form.
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Let's copy and paste, and
we'll do some editing.
7:25
Obviously, we don't need this
add answer thing, because, well,
7:31
there's not going to be
an add answer on a question.
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And so then,
this would probably just be new answer.
7:39
And here, we'd wanna say question.prompt.
7:48
And then question.quiz.title,
and block super is fine.
7:53
And this would be question.quiz,
question.quiz.course.title.
8:00
This one, we wanna go back to the quiz.
8:09
So, quiz.
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Yeah, question.quiz.
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Question.quiz.
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And then, we'll just put in an li here for
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the question.prompt.
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And we won't have a link
back to the question, but
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that way we can see what the prompt
is while we're editing stuff here.
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So we had the block super,
and then here we'll
8:39
just say Add Answer, and
then there is our form.
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All right, so let's go see if this works.
8:49
Let's hit Add Answer, and
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here's our Order, here's our Text,
and oh, we don't have this thing.
8:54
Oh, that should be question.quiz.title.
9:02
Haha, there we go.
9:06
Those breadcrumbs are nice and handy.
9:08
So, what all characters
can be in a string?
9:10
Let's just add in ASCII only.
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And here's our answer coming out.
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And let's add in, let's go edit that
question again, hit Add Answer.
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So, this isn't the most convenient thing,
is it?
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And then let's say All of Unicode.
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And that one should be correct.
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We hit Save.
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So cool,
we've got both of those showing up.
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That's not the best solution, is it?
9:44
I mean, it works.
9:46
We go to the add answer view every
time we want to add an answer.
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But that means we have to do a lot of
thinking about our answers before, during,
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and even after creation.
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Not how I wanna spend my days.
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Maybe we can find a way to
create multiple answers at once?
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Let's tackle that in the next stage.
10:03
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