[MUSIC]

[SOUND] Welcome back.

In the last stage, we were all about the list view.

In this stage, we're moving onto the detail view, where updates usually happen.

Although we know now that updates can happen in the list view.

Go us!

Django does a really good job at automatically displaying the information

we need.

But sometimes it doesn't know the best format to display something in.

For example, when we have a list of options for

a particular field on our model, it might make more sense to display those

in a tabular format rather than stack them one right on top of the other.

Or we might want to group related fields together, like all the address fields,

or all the fields related to ingredients.

These changes can make the admin site easier to use, and

can help you make fewer mistakes when changing information on your site.

So start up workspaces, and let's get to work.

First, let's group a set of related fields together.

A really nice place to do this might be on the text detail page.

Start your server and take a look at this page with me.

In this section, we have four fields that are required.

Those are the ones in bold.

We then have this field that isn't required, Content.

Let's group those required fields together and

let the user expand Content if they want to add something there.

Over here in admin.py we're gonna go down, all the way down, to TextAdmin.

And what we're going to do is add two field sets, or two groups of fields.

Now first, we have to comment out fields.

Because if we have fields and filedsets,

Django will get a little bit confused, and we'll get this nasty error.

The second thing we do is we create this attribute fieldsets as a tuple.

Then into the tuple, we need to put the two fieldsets that we want, and

those will also be tuples.

So we'll add None and a dictionary.

And then we'll add, Add content, and another dictionary.

The None and Add content are what we want the headings of the fieldsets to say.

Now I don't want the top heading to say anything, it doesn't need to.

But I want the bottom heading to say, Add content,

because this is some optional field that they have available.

As the second element in the tuples for the fieldsets, we have these dictionaries.

So, for both of the dictionaries we'll add fields as a key.

And then as the value,

we'll pass in a tuple of the fields that we want to have in that field set.

So, for example, in the top section,

that top field set, I wanna have course,

title, order and description.

And then for the second one, gonna have fields as the key.

And then for the value I'll have that tuple, and this will be called content.

And remember, since it's a tuple we have to add this trailing comma so

that Python knows that this is a tuple.

All right, if you need to, restart your server, and then refresh this page.

Awesome, so now you can see,

we have this section here at the top that doesn't have any sort of bar up here.

And it has Course, Title, Order and Description all ready.

But then we have this second section down here with the blue

bar that says Add content.

And then we can type whatever we want to into the Content box here.

Now, again, this is a really great time to reorder the fields if you want to.

So for example, I put course first, because I think it makes them most sense

to select the course that you're adding text for first before doing anything else.

Now, we just need to make content collapse whenever we first see it.

So to do this we add one more key to the dictionary for

Add content, and this key is going to be called classes.

And we pass in collapse as the value.

Save that.

Refresh the page.

That's awesome.

So now you can see that we've added this collapse class to the field set so

that it automatically collapses whenever we load the page.

We just click on Show to expand it,

and then Hide when we don't wanna see it anymore.

That's great.

Great work!

You've learned one useful way to change how the fields look on the admin site.

But I've got a few more tricks to show you, so

head over to the next video to see how else you can improve the detail view.