Editing the List View

We are almost done with the list view. 0:00 At the end of this video, you'll be able to do something incredibly useful. 0:03 Make edits to your objects in your database straight from the list view. 0:08 You won't have to click through to the detail view for 0:12 every little change you wanna make. 0:15 Instead, we'll learn how to make bulk edits straight from the list view. 0:17 So let's get started. 0:21 You're probably thinking that making fields editable in the list view is going 0:24 to be super complicated. 0:29 But hopefully you've learned that customizing most things in the Django 0:30 admin is really straightforward and this is no exception. 0:34 To grant yourself the ability to change your objects directly from the list view, 0:39 you just need to add one simple attribute to your admin class, list editable. 0:43 Now remember, that you can't make something editable 0:49 in the list view that isn't already in the list display, so 0:52 you have to have a list display first before you can add list editable. 0:56 So let's practice this with the QuestionAdmin. 1:01 So for QuestionAdmin we wanna add list_display. 1:05 And we wanna display the prompt. 1:12 And then maybe also the quiz that that particular question goes with. 1:14 And then the order that question comes in. 1:20 Now to make those fields editable, 1:22 we just make a variable called list_editable and assign to it the list 1:25 of the fields that we want to be editable from the list_display. 1:31 Now, let's try this out with quiz and order. 1:36 It makes sense to have the quiz and order fields be editable from the list_display, 1:42 because they're pretty easy to understand and correct. 1:47 If someone makes a mistake when creating a question and assigns it to the wrong quiz, 1:50 that's the kind of thing that's easy to see and correct at a glance. 1:55 Which is exactly what being able to edit from the list display is for. 1:59 So, if your server hasn't already been started, go ahead and start that and 2:03 let's take a look at this in action. 2:06 All right, so just to get here, just to review, I went to any of the questions. 2:11 So you could go to True false questions or Multiple choice questions. 2:15 And now I can see which quiz that this question, 2:19 Which of the following is an invalid string container, goes with. 2:22 And I can see the order that it goes in. 2:26 And both of those things are changeable. 2:28 So I can change this to New Quiz, and back to Review and back again if I want to. 2:30 Try it for yourself. 2:37 Now, booleans, or true false questions, 2:39 in the list display are a little bit different. 2:42 You've seen that they show up as a green check or a red x in the course display, so 2:45 let's see how they show up whenever they're editable. 2:50 So we can go back up to CourseAdmin. 2:52 And we can add, list_editable. 2:55 And let's see what our is_live field looks like whenever we make 2:59 it editable from the list view. 3:04 So we'll go over to Courses. 3:08 So as you can see, instead of the green and red graphics, 3:12 you have these checked and unchecked boxes. 3:15 Try selecting and deselecting some to see what happens. 3:19 Now, be careful with this. 3:25 If you enable editing in the list view, it means you could be setting up a condition 3:27 where you're editing some objects in the list view when someone else is 3:32 editing those same objects in the detail view or even in another list view. 3:36 This is called a race condition. 3:41 Whoever made their edit last, wins. 3:43 That was incredible! 3:46 As you can see, there is so much you can do to customize the list view 3:48 of the Django admin and make it work better for your projects. 3:52 You can change which fields appear in the list view, add searches and 3:57 filters, and even edit straight from the list view. 4:00 It's important to think about which fields would be best to change from the list 4:06 view, versus, which fields should stay in the detail view. 4:09 For example, changing live to not live, or the quiz that a question goes with, 4:13 is the kind of thing you can see and correct at a glance. 4:19 But a course description can get pretty long and 4:22 might take up too much space in a list view. 4:25 In the next stage of this course, you'll learn how to make 4:29 similar customizations to the other part of the Django admin, the detail view. 4:32 This is the screen you see when you click on a specific object in your database, 4:38 like a course or a quiz, and then make changes to it. 4:42 I'll see you in a bit. 4:46 Right after you crush this code challenge. 4:47