LogoutView and SignUpView

Users can log into the site, but they can't log out. 0:00 This is something they'll probably want at some time. 0:02 Thankfully, with all of Django's provided batteries, 0:05 this is as simple as a single function call. 0:07 Before a user can ever log in or log out though, they need to be able to sign up. 0:10 I think, we can tackle both of those things in this video, 0:14 logging out and signing up. 0:17 Join me in Workspaces to get started. 0:18 I actually already have a URL and a view for logging out. 0:22 Django provides me one in the URLs from the contrib package inside 0:26 these URLs right here, but let me show you what happens if I go there. 0:32 So, accounts/log out, kind of default standard name. 0:37 And I get this page, right? 0:43 It renders as admin template and not the template I like, right? 0:45 I would rather that the log-out view just redirect me back to the home page. 0:50 So, I'm gonna build that. 0:55 That's the nice thing, I can kinda just do the stuff I wanna do, right? 0:56 So, I'm gonna make a new url and 0:58 it'll be r"logout and 1:03 we go to views.LogoutView.as_view. 1:07 And the name will be logout. 1:13 All right, and then if I go over to views.py, I need to make the logout view. 1:15 Now that might seem backwards to some of you, making URL and making the view. 1:21 I guess, it kind of is, Django cares a little bit, I kind of complain, but 1:25 it doesn't really care. 1:29 You're just kind of do whatever you need to do. 1:30 So, I'm gonna import the logout function, which comes from the same place as login. 1:32 And then this is actually going to be a, Redirect view. 1:38 So, it's gonna be a view that just automatically redirects the user 1:45 at the end of it. 1:48 So, I'm gonna call this LogoutView and it's gonna be a RedirectView. 1:49 And redirect views require an argument named url, 1:56 which is where they redirect to. 1:59 So, I'm gonna redirect back to home. 2:01 And then in the get, which is what is fired when the get request comes in. 2:03 I'm gonna actually log the user out. 2:10 So, I'm gonna take the request, I'm gonna take the args and the kwargs. 2:14 I'm gonna call logout with the request, which since normally we 2:17 would login with the request, now we logout with the request. 2:22 So, same difference, I just called one request and 2:27 the other one got from the class. 2:31 And then we return super().get(request, *args, **kwargs). 2:34 Because I wanted to go ahead and do its normal return, right? 2:39 So, this view doesn't use a template or anything like that. 2:44 So, it's it's actually done. 2:47 So, If I don't typo. 2:50 So, I've been logged out. 3:00 So, that's awesome, and I can see the menu shows that I'm logged out and all of that. 3:01 Okay, so now what about signing up, right? 3:07 I need to be able to, I can log in, I can log out, that's great. 3:11 I can get in, I can get out, but I don't have any way of creating an account, so 3:14 I need to do that. 3:18 So, let's see, accounts/signup. 3:19 Now, and if I look here, there is no accounts like register or 3:26 create account or anything like that. 3:31 So, it must be that I need to make this view all by myself and it turns out, I do. 3:35 And that makes sense because creating an account is often very customized 3:40 to the site that it's on. 3:44 Okay, so I think, I can get by using a Django provided form for 3:46 creating a new user. 3:50 And I'll just write a create view for it. 3:51 It's worth a try, at least. 3:55 So, here in this, I'm only importing this AuthenticationForm, I'm also gonna import 3:57 UserCreationForm, and that's a form as you can probably guess for creating users. 4:02 So, then down here at the bottom, one two, I'm gonna make a SignUp view. 4:08 And I'm just gonna call this one SignUp. 4:14 So, this is going to be a CreateView because it's 4:17 creating a model and form_class = UserCreationForm. 4:22 The success_url should be 4:28 reverse_lazy("login"). 4:32 That way they can go to the login page and 4:38 then template name is accounts/signup.html. 4:42 Okay, fairly straightforward and I'm gonna make that template. 4:48 So, signup.html, over here in accounts. 4:52 And I'm just gonna use this one, so I just paste it in the other one here. 4:56 So, it's gonna say, Sign Up and Sign Up, and 5:00 the form stays the same and then this would be Sign Up as well. 5:05 All right, I think that's everything. 5:13 So, different headline, 5:15 I bet you could think of a really good way to make it easier to change that headline. 5:16 Okay, so time to try this, all right? 5:21 Let's see, did I have a url for that? 5:24 I didn't, I need to add a URL. 5:26 All right, so, let's see, signup, 5:27 SignUp, signup, all right. 5:37 All right, so, here we go. 5:44 I've got my Username, I've got my Password and Password confirmation. 5:45 So, okay, let's try making a new one. 5:50 Let's say, testuser, And hit Sign Up. 5:53 That username already exists. 6:00 Okay, let's call it treehouse. 6:01 Okay, now I should be able to login with treehouse. 6:07 All right, not bad, I can log in, I can do all of this stuff. 6:12 But let me go back to this Sign Up form again, real quick. 6:18 So, one of the things that bugs me with this, is there's no email on here. 6:24 It says username, I know that is the username, 6:29 it's gonna show up as the username. 6:31 For right now though, I want this to say display name, right? 6:33 I don't know exactly what I want but for now that's what I want. 6:36 So, let's see, if I can change this form. 6:39 So, up here in accounts, I'm gonna make a new file, which is gonna be named 6:43 forms.py and then inside here I'm gonna import that same form, right? 6:48 So, I had this UserCreationForm here, so I'm gonna import that. 6:53 And while I'm at it, I'm gonna take it and then I'll leave it in the view for now. 7:01 Okay, so I've got that and then I need to import the model. 7:04 So, from django.contrib.auth.models import User, cuz that's the model, right? 7:10 So, I'm gonna make my own form here. 7:17 So, I'm gonna call this UserCreateForm instead of UserCreationForm. 7:19 But it's gonna extend the UserCreationForm. 7:24 And then I'm just gonna specify the class Meta, 7:26 and I'm gonna say the fields that I want it to add. 7:29 So, I wanna show the username field, I wanna show the email field and 7:33 then there's two fields named password1 and password2. 7:38 We should show both of those, so that's for 7:43 the password and the password validation. 7:45 And then the model will be User. 7:48 Okay, now I want to rename a couple of these fields, 7:51 I wanna change the label, at least. 7:56 So, I could redefine the fields in the form, but that's a lot of trouble, 7:58 cuz if you look, there's all this help text and stuff. 8:02 I don't wanna have to recreate all of that. 8:05 So, I'm just gonna override them here, inside the form. 8:09 So, self, *args, **kwargs. 8:12 And I'm gonna call super().__init, and that's gonna take *args and **kwargs. 8:17 And then I'm gonna say self.fields["username"].label 8:24 = "Display name". 8:31 And self.fields["email"].label = "Email address". 8:34 It may say something like that already but just to make sure. 8:44 Okay, so I think, it's gonna work, but 8:47 now I need to use this form in my view instead of the old one. 8:49 So, I'm gonna take that out and then we'll say, from .import forms. 8:53 And then down here at the bottom, forms.UserCreateForm. 8:59 Okay, so that should use my new form. 9:05 So, let me refresh this and yeah, look, 9:09 there's display name, email address, password and password, so, awesome. 9:12 There's the form that I want. 9:17 One thing, I didn't do that's a good idea, 9:20 is some sort of user validation on sign up. 9:22 I'm sure you've used a site where you had to click a link that was emailed to you to 9:24 verify, yep, I'm actually me, and I actually wanted to sign up. 9:27 That's a bit beyond the scope of this course, but I'll link to a library or 9:31 two in the teacher's notes that make it a lot simpler to implement. 9:34 Check those out before you put user registration on a live website. 9:37 I think, there's only one thing missing from the site as far as registration and 9:41 stuff is concerned. 9:44 What would your users do, if they forgot their password? 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