1 00:00:05,360 --> 00:00:08,450 Welcome back, everyone, to this section on user authentication. 2 00:00:09,290 --> 00:00:13,460 Well, we're going to do now is explore how to handle users and sessions with Django's built in tools. 3 00:00:13,940 --> 00:00:18,050 Well, create a simple library website where users have profiles and books. 4 00:00:18,440 --> 00:00:20,630 Let's get started with a simple skeleton of the site. 5 00:00:20,900 --> 00:00:22,220 I'm going to head over to voice code. 6 00:00:22,700 --> 00:00:22,910 All right. 7 00:00:22,910 --> 00:00:27,830 So here I am in my Django Lectures folder, which is on my desktop, which is completely empty right 8 00:00:27,830 --> 00:00:28,130 now. 9 00:00:28,520 --> 00:00:30,490 And what I'm going to do is just start a project. 10 00:00:30,500 --> 00:00:31,850 So let's say Django admin. 11 00:00:33,130 --> 00:00:37,330 Start project and I'm going to start my library project. 12 00:00:38,310 --> 00:00:41,010 Go ahead and hit enter and then you should see a pop up. 13 00:00:41,010 --> 00:00:41,700 So you can now see. 14 00:00:43,170 --> 00:00:44,550 Into your library. 15 00:00:45,060 --> 00:00:50,100 So you notice we have our library and remember that double use case of the directory. 16 00:00:50,100 --> 00:00:53,640 So a library underneath a library directory, then you have your settings image. 17 00:00:53,650 --> 00:00:59,130 Okay, so now what I'm going to do is just create a simple app for the catalog. 18 00:00:59,340 --> 00:01:03,630 So for example, in the catalogs of books, so we're just setting up the basic skeleton here. 19 00:01:04,110 --> 00:01:09,330 So what I'm going to do is, first off, make sure you're actually inside of library so you can run 20 00:01:09,330 --> 00:01:09,960 the following. 21 00:01:10,290 --> 00:01:18,360 I'll say Python, manage that pie and I'm going to start an app called Catalog Enter and you should 22 00:01:18,360 --> 00:01:25,260 see Beyond Library your actual catalog application that can then hold things like models for books or 23 00:01:25,260 --> 00:01:29,580 views for actually expressing different things that are inside your catalog. 24 00:01:30,180 --> 00:01:34,950 Now, as we continue, we want to make sure that we actually register the catalog application. 25 00:01:34,950 --> 00:01:39,990 Sometimes we do this later on, but typically it's nice just to immediately after creating the application, 26 00:01:40,110 --> 00:01:41,460 go ahead and register it. 27 00:01:41,850 --> 00:01:48,000 Remember inside settings dot pie, if you scroll down, you have the installed apps. 28 00:01:48,000 --> 00:01:51,000 So that's where we actually want to add in the catalog. 29 00:01:51,000 --> 00:01:52,710 So we're going to say here. 30 00:01:53,770 --> 00:01:55,450 And make sure you don't forget that comma. 31 00:01:56,350 --> 00:02:02,890 I'm going to put this on a new line so it looks like everything else I'm going to say catalog the app's 32 00:02:03,610 --> 00:02:05,470 dot catalog. 33 00:02:05,680 --> 00:02:07,840 Config catalog. 34 00:02:09,470 --> 00:02:10,220 Config. 35 00:02:10,310 --> 00:02:13,520 And if you're wondering, where do you actually get this line of code? 36 00:02:13,790 --> 00:02:16,460 Remember, if you go to app stop pie, you see it right here. 37 00:02:16,910 --> 00:02:22,070 Catalog config obviously could be different depending on what you decided to name your application. 38 00:02:22,430 --> 00:02:27,070 So we can see we have inside catalog the app's catalog config. 39 00:02:27,080 --> 00:02:31,170 So if you come here, you have catalog, app store catalog config. 40 00:02:31,490 --> 00:02:31,790 All right. 41 00:02:32,000 --> 00:02:33,650 So that's where I'm getting that from. 42 00:02:34,070 --> 00:02:37,700 So we can go ahead and save those changes inside settings that py. 43 00:02:38,000 --> 00:02:40,880 Later on we'll be doing things like running migrations, etc.. 44 00:02:42,240 --> 00:02:47,010 And since we're probably going to have views associated just with the catalog, let's begin mapping 45 00:02:47,010 --> 00:02:48,450 our URL's file. 46 00:02:48,720 --> 00:02:56,340 So what I'll do here is I'm going to go to URLs, dot pie and eventually expand this to actually link 47 00:02:56,340 --> 00:02:57,540 to the catalog. 48 00:02:57,870 --> 00:03:03,120 Now to do that, I have to actually create my URLs that py file inside of catalog. 49 00:03:03,510 --> 00:03:09,900 So inside of catalog I'm going to say new file and as we've done before, call it urls dot py. 50 00:03:10,350 --> 00:03:14,140 So this is the URLs for my catalog views. 51 00:03:14,340 --> 00:03:15,450 So just keep that in mind. 52 00:03:15,750 --> 00:03:22,080 But now that I have this URL, let's just go ahead and quickly link it at a settings or project level. 53 00:03:22,500 --> 00:03:23,730 So we already know how to do this. 54 00:03:23,730 --> 00:03:24,720 We've done this a bunch of times. 55 00:03:25,140 --> 00:03:30,390 So we're going to say import path, but also remember to import include and let's use it here. 56 00:03:31,360 --> 00:03:32,140 We're going to say path. 57 00:03:33,370 --> 00:03:34,600 Goes to catalog. 58 00:03:35,850 --> 00:03:36,600 And zoom in here. 59 00:03:36,600 --> 00:03:37,380 One more for you. 60 00:03:38,310 --> 00:03:39,600 So you can really see what I'm typing here. 61 00:03:39,600 --> 00:03:49,170 Catalog for Slash and then I'm going to include and this is where we can say catalog your URLs and don't 62 00:03:49,170 --> 00:03:50,670 forget your comma here. 63 00:03:51,150 --> 00:03:54,210 Always be careful of commas when you're doing things with lists. 64 00:03:54,210 --> 00:03:58,320 These are kind of hard to debug sometimes, so we'll go ahead and save that change. 65 00:03:58,350 --> 00:04:03,840 Added in the connection to the path for you URL patterns from my catalog application. 66 00:04:05,260 --> 00:04:10,390 And one of the things I'm going to do here that we haven't really done before is actually automatically 67 00:04:10,390 --> 00:04:13,030 redirect the homepage to go to catalog. 68 00:04:13,450 --> 00:04:17,709 So just to give you an example, typically when we've been actually working on our projects, we'll 69 00:04:17,709 --> 00:04:22,570 do something like this example, you know, dot com, and then they have to go forward, slash to the 70 00:04:22,570 --> 00:04:23,810 app that we're working with. 71 00:04:24,160 --> 00:04:30,130 But wouldn't it be nice if we could just go straight from example dot com and then for them to. 72 00:04:30,400 --> 00:04:32,590 Example dot com forward slash app. 73 00:04:33,010 --> 00:04:38,170 Typically we've been living or leaving the actual index page blank and then having to manually type 74 00:04:38,170 --> 00:04:39,550 out that first application. 75 00:04:39,880 --> 00:04:45,160 What I'm going to do is just have an automatic permanent redirect to go from the base domain to the 76 00:04:45,160 --> 00:04:50,290 actual application where it's going to be local host goes to local host forward slash catalog. 77 00:04:50,800 --> 00:04:55,630 Now we already know about some built in views and built in models and just built an import. 78 00:04:55,630 --> 00:05:02,470 So jingo, the easiest way to do a redirect permanently is the following way we can say and you have 79 00:05:02,470 --> 00:05:05,020 to actually import this from generic fields or say from. 80 00:05:06,090 --> 00:05:12,810 Jingle dot views dot generic imports a redirect view. 81 00:05:13,780 --> 00:05:17,800 And then here inside the URL patterns, you just need to put in this code. 82 00:05:17,800 --> 00:05:18,730 You're going to say path. 83 00:05:20,480 --> 00:05:23,240 The home path, which is just nothing or but that's the local host. 84 00:05:24,020 --> 00:05:26,180 And then you're going to say redirect view. 85 00:05:27,670 --> 00:05:28,510 As few. 86 00:05:29,940 --> 00:05:32,130 And you're going to pass in the URL to redirect to. 87 00:05:32,880 --> 00:05:37,830 Obviously, we still need to fill out those views, but just doing this ahead of time, we should now 88 00:05:37,830 --> 00:05:45,570 with this line of code, be able to redirect the blank, which is essentially the domain to this blank 89 00:05:45,570 --> 00:05:46,950 forward slash catalog. 90 00:05:47,250 --> 00:05:47,610 Okay. 91 00:05:47,850 --> 00:05:54,420 So we still need to actually set up our primary view for the catalog, inside views and URLs, but so 92 00:05:54,420 --> 00:05:56,250 far we're now actually redirecting. 93 00:05:56,250 --> 00:05:57,780 So make sure to save those changes. 94 00:05:59,040 --> 00:06:03,570 And now to finish this off, let's create a very basic view for the catalog home page. 95 00:06:04,090 --> 00:06:05,590 So we'll come back to views here. 96 00:06:05,710 --> 00:06:10,950 I'm going to create just a very simple view that essentially just shows some sort of version of Hello, 97 00:06:10,960 --> 00:06:12,550 just so we can confirm that this is all working. 98 00:06:13,510 --> 00:06:17,200 So I'm actually going to go first to your URLs that PY and let's go ahead and set this up. 99 00:06:17,860 --> 00:06:26,800 So we're going to say from Django, dot URLs, import path and then we can say from that import. 100 00:06:27,910 --> 00:06:28,420 Views. 101 00:06:29,430 --> 00:06:31,260 And set up our URL patterns. 102 00:06:33,000 --> 00:06:36,210 This is early patterns for just the catalog app. 103 00:06:36,720 --> 00:06:37,950 So here I'm going to say path. 104 00:06:39,720 --> 00:06:40,650 Homepage here. 105 00:06:41,990 --> 00:06:42,970 View start. 106 00:06:43,010 --> 00:06:45,110 And let's just make this the index view. 107 00:06:46,100 --> 00:06:47,300 Give it the name index. 108 00:06:50,330 --> 00:06:54,980 And now after we save that, I can create my index view since I know its name though. 109 00:06:55,430 --> 00:06:59,990 So say the index and then we're going to do is taking the request here. 110 00:07:01,180 --> 00:07:03,520 And then you can just return just a simple hello. 111 00:07:03,550 --> 00:07:06,040 You don't need to return an entire template right now or work on that later. 112 00:07:07,190 --> 00:07:10,040 So then to show that, let's just actually show a simple HTP response. 113 00:07:10,040 --> 00:07:15,980 We'll say from Django, the HTP import HTP response. 114 00:07:17,940 --> 00:07:18,420 There we go. 115 00:07:18,930 --> 00:07:20,760 And then say here. 116 00:07:21,450 --> 00:07:23,550 Return to the pure response. 117 00:07:24,120 --> 00:07:24,790 Something like. 118 00:07:25,590 --> 00:07:25,980 Hello. 119 00:07:27,030 --> 00:07:27,330 Okay. 120 00:07:27,690 --> 00:07:32,670 So we've done a lot so far, but basically nothing we haven't really seen before, minus the little 121 00:07:32,670 --> 00:07:34,770 quick fix of redirecting the view. 122 00:07:34,800 --> 00:07:36,210 So we have a little skeleton. 123 00:07:36,540 --> 00:07:41,730 And now we should be at a point where we can then start adding tons of URLs, views and models to hold 124 00:07:41,730 --> 00:07:42,210 everything. 125 00:07:42,510 --> 00:07:45,060 I do, however, want to make sure this is actually all working. 126 00:07:45,600 --> 00:07:51,900 So we're going to go here and say go ahead and Python manage the API and then let's run the server. 127 00:07:52,380 --> 00:07:53,700 So going to say Python. 128 00:07:54,600 --> 00:07:56,520 Manage that pie run server. 129 00:07:56,520 --> 00:07:58,800 Let's make sure we don't actually have any typos on anything. 130 00:07:59,550 --> 00:08:04,560 So we haven't run migrations yet, but it looks like we do have something on our local. 131 00:08:04,890 --> 00:08:10,480 So I'm going to go to our local on my actual computer here. 132 00:08:10,480 --> 00:08:14,160 So let me bring in my browser and it's going to redirect to here. 133 00:08:14,640 --> 00:08:19,050 And if you do that, you should get the automatic redirect to something that just says hello. 134 00:08:19,800 --> 00:08:21,300 So here I can see hello. 135 00:08:22,140 --> 00:08:25,130 And if you look at this, you should have seen the redirect happen. 136 00:08:25,140 --> 00:08:30,360 So to get HTTP 1.1, it gives us a three or two redirect to catalog. 137 00:08:30,720 --> 00:08:32,429 And then here we have this. 138 00:08:32,669 --> 00:08:34,110 Okay, so it looks like everything's working. 139 00:08:34,500 --> 00:08:40,559 And now what we can do is in the next lecture, begin focusing on our models for everything in the catalog. 140 00:08:40,860 --> 00:08:41,400 I'll see you there.