1 00:00:05,350 --> 00:00:07,040 Welcome back, everyone, to this lecture. 2 00:00:07,060 --> 00:00:10,690 We're going to begin setting up some views for our actual pages. 3 00:00:10,930 --> 00:00:16,090 Things like a homepage that can display all the books available for checkout or the status of all the 4 00:00:16,090 --> 00:00:16,990 books in the library. 5 00:00:17,410 --> 00:00:19,390 Let's go ahead and head back to our code editor. 6 00:00:22,210 --> 00:00:22,540 Okay. 7 00:00:22,540 --> 00:00:24,580 So here we are back at our code editor. 8 00:00:24,970 --> 00:00:27,400 Let's go back to our views that PI. 9 00:00:27,430 --> 00:00:32,140 Remember, we actually already had a very simple index page that just responded, hello. 10 00:00:32,590 --> 00:00:36,940 Let's now use models to start displaying information from the models. 11 00:00:37,600 --> 00:00:40,150 So say from that model's imports. 12 00:00:40,780 --> 00:00:42,160 And I'm going to import book. 13 00:00:42,520 --> 00:00:45,850 Let's say author book instance. 14 00:00:45,850 --> 00:00:49,840 And we can also say the genre in language whether or not will actually display this. 15 00:00:50,170 --> 00:00:51,190 We can decide later on. 16 00:00:51,820 --> 00:00:56,380 So here we're going to have just a simple view function and let's generate some counts of some of the 17 00:00:56,380 --> 00:00:58,150 main objects in our databases. 18 00:00:58,420 --> 00:01:01,120 For example, the number of books, maybe that's something we want to display. 19 00:01:01,930 --> 00:01:05,410 So I can say book the objects the all. 20 00:01:05,650 --> 00:01:07,630 And then simply request a count of them. 21 00:01:08,350 --> 00:01:11,350 And then I can also say, what are the number of instances of books? 22 00:01:11,740 --> 00:01:16,660 So remember, this is books as in like the titles, but how many actual copies do we have available? 23 00:01:16,690 --> 00:01:19,880 So a number of instances would be very similar. 24 00:01:19,900 --> 00:01:21,220 It would just be book instance. 25 00:01:22,520 --> 00:01:24,230 Objects all. 26 00:01:24,620 --> 00:01:29,540 And currently the way we've set this up, there's just one copy of that mystery novel, and then maybe 27 00:01:29,540 --> 00:01:31,310 we can even have a number available. 28 00:01:31,340 --> 00:01:34,220 So, for example, number of instances. 29 00:01:35,240 --> 00:01:39,230 Available would just be the book instance. 30 00:01:40,400 --> 00:01:42,710 Objects and then we filter. 31 00:01:42,950 --> 00:01:43,970 So what do I filter? 32 00:01:44,000 --> 00:01:46,940 Well, I could filter based off its status. 33 00:01:47,450 --> 00:01:54,750 So I say status underscore, underscore exact number A was our code for being available. 34 00:01:55,250 --> 00:01:57,280 And then from there, I could create that count. 35 00:01:58,010 --> 00:02:02,480 So so far reporting back the number of books, essentially them are titles hold a library, number of 36 00:02:02,480 --> 00:02:03,060 instances. 37 00:02:03,060 --> 00:02:06,410 So total physical copies, number of instances available for checkout. 38 00:02:06,770 --> 00:02:11,750 And what I can also do is just say number of authors, etc., but eventually we have to pass all this 39 00:02:11,750 --> 00:02:12,550 information back. 40 00:02:12,560 --> 00:02:18,710 So I'm going to say return, render the request and here I'm going to reference a template that doesn't 41 00:02:18,710 --> 00:02:19,250 exist yet. 42 00:02:19,820 --> 00:02:21,050 Index each HTML. 43 00:02:21,470 --> 00:02:23,510 I'm going to pass this back as context. 44 00:02:23,960 --> 00:02:26,210 So let's actually create a context dictionary for this. 45 00:02:26,210 --> 00:02:27,920 Also, context is equal to context. 46 00:02:28,580 --> 00:02:31,310 But then I'm going to actually paste this in. 47 00:02:32,520 --> 00:02:35,970 So here we'll say context is equal to the dictionary. 48 00:02:36,960 --> 00:02:40,230 And we're just going to have the key value pairs match up to their names. 49 00:02:41,040 --> 00:02:43,950 So this will be equal to number of books, comma. 50 00:02:45,240 --> 00:02:46,940 Number of instances. 51 00:02:49,030 --> 00:02:51,310 His number of instances, comma. 52 00:02:52,240 --> 00:02:54,100 And the number of instances available. 53 00:02:56,210 --> 00:02:57,740 Number instances available. 54 00:02:59,340 --> 00:03:01,560 Common instances of ill. 55 00:03:02,930 --> 00:03:03,410 There we go. 56 00:03:04,010 --> 00:03:05,930 Okay, so here's our context. 57 00:03:05,940 --> 00:03:11,110 We're passing it back to index that each HTML, which means I actually need to post that in somewhere. 58 00:03:11,120 --> 00:03:14,690 So let's create a new file here. 59 00:03:14,690 --> 00:03:18,110 So we'll say new folder, actually templates. 60 00:03:18,110 --> 00:03:22,310 And then inside of templates, we're going to see a new folder called catalog. 61 00:03:23,540 --> 00:03:28,700 And then inside of this is where we're going to create that first index that each HTML file. 62 00:03:28,850 --> 00:03:35,390 So now I can start typing out each HTML and then in fact, we can make this a full dock so I can say 63 00:03:35,390 --> 00:03:35,840 talk. 64 00:03:36,470 --> 00:03:39,170 And then inside the body, have a heading saying. 65 00:03:40,100 --> 00:03:40,940 Homepage. 66 00:03:42,780 --> 00:03:45,330 And then I could start actually inserting things. 67 00:03:45,420 --> 00:03:50,490 So, for example, I could say, go ahead and inserts the number of books we have. 68 00:03:51,450 --> 00:03:52,530 So a paragraph tag. 69 00:03:52,890 --> 00:03:53,280 Um. 70 00:03:54,350 --> 00:03:55,190 Total books. 71 00:03:55,460 --> 00:03:57,710 And then this is where you would actually start inserting things. 72 00:03:58,670 --> 00:04:00,560 So I just do that with a call here. 73 00:04:02,030 --> 00:04:03,410 Double set of brackets. 74 00:04:03,410 --> 00:04:07,460 And for example, I can see a number of books. 75 00:04:07,940 --> 00:04:11,000 Okay, let's just do one more example, since I'm sure you guys kind of get it by now. 76 00:04:11,540 --> 00:04:12,920 So a number available. 77 00:04:15,100 --> 00:04:15,870 Here we go. 78 00:04:15,880 --> 00:04:20,980 And let's have the say something like number of instances available. 79 00:04:22,940 --> 00:04:25,100 Now, remember, we're passing that back through the context. 80 00:04:25,100 --> 00:04:27,230 So I'm going to go ahead and save this. 81 00:04:28,520 --> 00:04:32,240 And then for now, last thing I want to do to make sure it's actually all gets linked up and displayed 82 00:04:32,630 --> 00:04:34,280 because it's under templates and catalogue. 83 00:04:34,280 --> 00:04:38,600 What I could do for simplicity is just say, Here we go, here. 84 00:04:39,950 --> 00:04:42,470 Catalog forward slash index each HTML. 85 00:04:43,740 --> 00:04:44,060 Okay. 86 00:04:44,070 --> 00:04:50,370 And then if you actually come here to your homepage, you should now see something that looks like this. 87 00:04:50,370 --> 00:04:51,540 Let me zoom in for you. 88 00:04:52,050 --> 00:04:55,770 You can see it says total books are one number available is zero. 89 00:04:56,010 --> 00:05:00,150 And that matches up to what I created last time I did create a book, but then I said it was checked 90 00:05:00,150 --> 00:05:01,410 out and it was due tomorrow. 91 00:05:01,830 --> 00:05:06,180 So clearly we have a connection on the homepage and you could begin to link any information. 92 00:05:06,190 --> 00:05:08,190 Made a small little typo there, but no big deal. 93 00:05:08,730 --> 00:05:15,300 So we want to begin to explore is the ability to do things like edit maybe or add, update, delete, 94 00:05:15,300 --> 00:05:17,580 etc. based on certain views. 95 00:05:17,730 --> 00:05:23,940 But what I want to eventually add in is a capability to only be able to visit some of these views based 96 00:05:23,940 --> 00:05:25,650 off user authentication. 97 00:05:25,710 --> 00:05:28,140 So we're going to set up a couple of more views. 98 00:05:28,140 --> 00:05:33,570 We're not going to do absolutely all of them, but you can eventually add in more and more views and 99 00:05:33,570 --> 00:05:35,280 you can check out the full code if you want. 100 00:05:35,310 --> 00:05:40,290 Or just a code that we've worked on here together in this video but eventually want to do is restrict 101 00:05:40,290 --> 00:05:43,830 views or restrict capabilities based off the user themselves. 102 00:05:43,830 --> 00:05:48,630 Like are you actually an official user and do you have permission to do something on our website? 103 00:05:48,780 --> 00:05:49,740 Like a librarian. 104 00:05:51,430 --> 00:05:57,790 So for right now, let's create a simple class based view that is going to allow anybody right now on 105 00:05:57,790 --> 00:05:59,530 the page to create a book. 106 00:05:59,920 --> 00:06:06,070 Then we'll switch over now that we've done all the work to set up a very skeleton website of a library 107 00:06:06,430 --> 00:06:12,350 to actually show you, Hey, this is how you can mix in the permissions of requirements. 108 00:06:12,370 --> 00:06:16,090 So let's go ahead and create one more view. 109 00:06:16,360 --> 00:06:20,320 I'll actually do this one as a class based view so we can see that as an example here. 110 00:06:20,830 --> 00:06:22,030 So we're going to say from. 111 00:06:24,100 --> 00:06:28,090 Django doc views the generic. 112 00:06:29,050 --> 00:06:31,090 And I'm going to import. 113 00:06:32,840 --> 00:06:35,750 And let's import a very simple, creative view. 114 00:06:37,250 --> 00:06:42,230 And if we wanted to, I could continue doing this with a model view, but we'll keep things simple for 115 00:06:42,230 --> 00:06:42,450 now. 116 00:06:42,470 --> 00:06:48,560 So I have this very simple view, and then what I'm going to do is create a view that essentially connects 117 00:06:48,560 --> 00:06:49,430 to a model. 118 00:06:50,240 --> 00:06:51,890 So here we're going to say. 119 00:06:53,400 --> 00:06:56,410 Class book creates. 120 00:06:56,460 --> 00:06:58,870 So the ability to create a new book keep minds. 121 00:06:58,890 --> 00:07:01,560 Not the creation of the book instance, just the creation of a book. 122 00:07:02,130 --> 00:07:04,500 And then we're going to inherit from create view. 123 00:07:06,300 --> 00:07:09,930 And you could do this for creation of authors, creation of languages, etc.. 124 00:07:10,200 --> 00:07:12,960 Keep things simple for now so we don't just do a bunch of duplicate work. 125 00:07:13,380 --> 00:07:17,970 So say book, create, create view, connect it to a model. 126 00:07:18,810 --> 00:07:20,340 So going to connect it to the book model. 127 00:07:20,400 --> 00:07:22,110 Remember, I already imported that up here. 128 00:07:23,160 --> 00:07:25,950 And then what I'm going to do is say the fields that they can create. 129 00:07:26,670 --> 00:07:29,070 So we're just going to say all. 130 00:07:31,210 --> 00:07:33,640 And then if you wanted to continue, you could give this a success. 131 00:07:33,670 --> 00:07:38,860 Earl Maybe we'll add that in later, but let's actually connect this to the default, remember, for 132 00:07:38,860 --> 00:07:39,720 create view. 133 00:07:40,060 --> 00:07:45,550 Sometimes it's easy to forget, but it's going to be your model underscore form that each HTML, which 134 00:07:45,550 --> 00:07:52,990 means it will be looking for the book underscore form the HTML inside templates, which means are going 135 00:07:52,990 --> 00:07:59,920 to come in here to catalog, going to create a new file and we are going to call this book underscore 136 00:07:59,920 --> 00:08:07,360 form, start each HTML and then here we'll just go ahead and say create new book. 137 00:08:08,750 --> 00:08:09,710 And then the form. 138 00:08:10,700 --> 00:08:11,420 Will be. 139 00:08:11,810 --> 00:08:15,410 We don't need an action here, but we do need a method or same method is post. 140 00:08:16,870 --> 00:08:18,070 Is equal to post. 141 00:08:20,120 --> 00:08:22,010 And then we have the CSR a token. 142 00:08:24,010 --> 00:08:25,690 So or a token. 143 00:08:25,960 --> 00:08:26,560 There we go. 144 00:08:26,770 --> 00:08:27,050 Oops. 145 00:08:27,430 --> 00:08:29,550 Looks like XLE auto completed that twice. 146 00:08:30,880 --> 00:08:31,400 There you go. 147 00:08:31,420 --> 00:08:34,900 There's a CSR token and then we'll also just pass in the form. 148 00:08:35,799 --> 00:08:38,890 So it's a form and we'll make this as paragraph. 149 00:08:40,000 --> 00:08:47,050 Finally, the input button itself will say input and it's going to be just input type is submit. 150 00:08:47,980 --> 00:08:49,780 The value can be something like. 151 00:08:51,670 --> 00:08:53,350 Create book or just create. 152 00:08:54,290 --> 00:08:54,590 Okay. 153 00:08:54,950 --> 00:08:56,600 So make sure you save those views as well. 154 00:08:56,960 --> 00:08:58,940 We create a very simple create view. 155 00:08:59,210 --> 00:09:03,890 Obviously, you can use the power of generic views to create list views, to list all the books that 156 00:09:03,890 --> 00:09:06,020 are available, unavailable, etc.. 157 00:09:06,260 --> 00:09:07,820 We already know how to do that with filters. 158 00:09:08,060 --> 00:09:13,130 You can do delete views for deleting books, but right now keeping it as simple as possible in this 159 00:09:13,130 --> 00:09:16,520 skeleton for the purposes of understanding users later on. 160 00:09:17,000 --> 00:09:21,410 So we have this create view but have actually linked it to any specific URL. 161 00:09:21,830 --> 00:09:26,960 So we'll come back to your URLs here at the actually, we need to go to the catalog level. 162 00:09:27,470 --> 00:09:28,610 So let me click here. 163 00:09:29,030 --> 00:09:29,360 Okay. 164 00:09:29,360 --> 00:09:34,520 So we have the home page, but we don't have an actual view for the creation or the excuse me, the 165 00:09:34,520 --> 00:09:35,570 URL for the creation. 166 00:09:36,110 --> 00:09:37,880 So to fix that, it's pretty simple. 167 00:09:37,880 --> 00:09:44,300 We just are going to say from the import views or what I can also say is actually we'll just leave it 168 00:09:44,300 --> 00:09:44,810 as views. 169 00:09:45,110 --> 00:09:46,310 I don't mind calling it again. 170 00:09:46,910 --> 00:09:51,530 I'm going to set a path called, let's say, create book should be okay. 171 00:09:52,460 --> 00:09:59,390 And then I'm going to say this is VUSE Dot and then we called this book Create. 172 00:10:00,910 --> 00:10:01,420 Here we go. 173 00:10:01,460 --> 00:10:05,320 Put creates as view because remember these actually expect functions. 174 00:10:06,300 --> 00:10:09,750 And then we'll say the name of this is Create Book. 175 00:10:11,720 --> 00:10:12,020 Okay. 176 00:10:12,170 --> 00:10:15,980 So that should now link it to a URL pattern. 177 00:10:16,400 --> 00:10:23,420 So if you go to homepage forward slash, create book or actually catalog for its last great book, then 178 00:10:23,420 --> 00:10:26,240 it should take you to this view for the creation view. 179 00:10:26,540 --> 00:10:28,060 And let's make sure that's all working. 180 00:10:28,070 --> 00:10:30,650 We may have committed a typo along the way, but no problems. 181 00:10:30,920 --> 00:10:32,510 We should be able to fix it. 182 00:10:33,020 --> 00:10:36,710 So here I am at my home page for the catalog. 183 00:10:37,100 --> 00:10:39,140 Let's go to create book. 184 00:10:39,320 --> 00:10:41,690 Let me make sure that was the actual URL that we just described. 185 00:10:42,890 --> 00:10:43,620 Create book. 186 00:10:43,640 --> 00:10:49,490 So I'm going to go there, create underscore book, and I bring that in here. 187 00:10:49,940 --> 00:10:52,460 So we do see the ability to create a book. 188 00:10:52,880 --> 00:10:57,710 So I'm going to say the title is brand new test book. 189 00:10:58,790 --> 00:11:02,140 The author notice it's a dropdown so we only have Jose Pretty. 190 00:11:02,180 --> 00:11:09,900 The choose from summary is test book obviously super ugly form, but you get the idea ISBN number. 191 00:11:09,920 --> 00:11:13,820 This is something you would like look up on the internet and the mystery. 192 00:11:14,750 --> 00:11:17,210 I think the book's like 13 some slowly, something like that. 193 00:11:17,660 --> 00:11:18,890 We'll also have this one B mystery. 194 00:11:19,190 --> 00:11:21,740 We could create genres if we wanted to. 195 00:11:21,740 --> 00:11:25,910 And then English here from the dropdown some hit create make sure we don't get error. 196 00:11:26,950 --> 00:11:29,670 It looks like we do get a reverse match error. 197 00:11:29,670 --> 00:11:31,470 So book detail is not a valid. 198 00:11:31,920 --> 00:11:32,550 Oh, I see. 199 00:11:32,580 --> 00:11:38,280 So basically by default, the success page is to go for the book detail. 200 00:11:38,550 --> 00:11:43,080 But currently, we don't technically have a view that shows the book detail. 201 00:11:43,470 --> 00:11:48,390 So while I believe that book should have been created and we can check the admin to actually check if 202 00:11:48,390 --> 00:11:54,600 that's true, currently there's no reverse functionality to go to the book detail page. 203 00:11:54,630 --> 00:12:00,060 So what I'm going to do here is I'm actually going to go to admin and confirm that book was created 204 00:12:00,470 --> 00:12:01,890 just to check that our form is working. 205 00:12:02,370 --> 00:12:06,750 So here we go to books and I can see my brand new test book was created. 206 00:12:07,140 --> 00:12:12,000 It's just that there was no success URL to go to and the default want us to go to detail view. 207 00:12:12,030 --> 00:12:13,110 So we have two options here. 208 00:12:13,350 --> 00:12:16,320 One is to manually override the success URL. 209 00:12:16,320 --> 00:12:17,520 We've actually done that before. 210 00:12:18,150 --> 00:12:19,260 It's pretty straightforward. 211 00:12:19,260 --> 00:12:21,030 You just say you come here. 212 00:12:22,020 --> 00:12:31,830 To views that pie and say success IRL and then do a reverse lazy lookup for whatever view you want to 213 00:12:31,830 --> 00:12:32,310 go to. 214 00:12:32,610 --> 00:12:36,910 Now by default, it is the detail view for that particular book. 215 00:12:37,260 --> 00:12:41,070 So the other option we have here is to create a detailed view. 216 00:12:41,370 --> 00:12:47,940 So I could come up here and from create view also imports detail view. 217 00:12:48,720 --> 00:12:49,980 So it's not so bad to do that. 218 00:12:50,400 --> 00:12:53,580 We'll go ahead and create a new class called Book Detail. 219 00:12:54,830 --> 00:12:58,490 And we're going to call this detail view imported from. 220 00:12:59,570 --> 00:13:06,500 And then we're just going to connect this to model is equal to book there which means I need a new template. 221 00:13:06,620 --> 00:13:13,820 So we'll say new file and this will we book underscore detail by each HTML. 222 00:13:14,390 --> 00:13:17,840 Simply going to say detail for book. 223 00:13:18,900 --> 00:13:21,570 And then this passes in that actual book model. 224 00:13:21,840 --> 00:13:22,950 So we'll save that. 225 00:13:23,610 --> 00:13:24,770 Go to views. 226 00:13:24,780 --> 00:13:26,100 Save that connection. 227 00:13:26,880 --> 00:13:29,130 So make sure you save that connection there. 228 00:13:29,520 --> 00:13:34,320 And so now the redirect after creating a book should take you to that book detail page, which we have 229 00:13:34,320 --> 00:13:34,530 here. 230 00:13:34,560 --> 00:13:36,930 Very simple, but it should be working. 231 00:13:36,930 --> 00:13:40,500 So I'm going to go back to my catalog. 232 00:13:41,040 --> 00:13:42,840 Let's go back to my home page here. 233 00:13:43,410 --> 00:13:45,160 So we're back to the home page. 234 00:13:45,180 --> 00:13:48,120 It looks like I did actually create that book, but we don't have that detail page yet. 235 00:13:48,570 --> 00:13:55,260 So we're going to go to catalog and this is Book Create or might have been create ebook loops. 236 00:13:55,260 --> 00:13:57,840 Let me create underscore book. 237 00:13:58,320 --> 00:13:59,580 There we go, create a new book. 238 00:13:59,970 --> 00:14:01,770 So we're going to call this second test. 239 00:14:03,210 --> 00:14:04,440 Same authors before. 240 00:14:04,800 --> 00:14:06,750 We're going to call this my second test book. 241 00:14:07,560 --> 00:14:09,150 I have to be number 1 to 3. 242 00:14:09,870 --> 00:14:12,660 It's also a mystery, although I believe some of these we said we could leave. 243 00:14:12,660 --> 00:14:15,240 No, it's in English going to create this. 244 00:14:16,020 --> 00:14:17,370 And it looks like we still have an error here. 245 00:14:17,370 --> 00:14:18,390 So let's dive deeper. 246 00:14:18,850 --> 00:14:21,600 Oh, it's because we forgot to actually make the URL matching. 247 00:14:21,600 --> 00:14:22,740 So almost none. 248 00:14:23,220 --> 00:14:25,230 And to come back here to your URLs. 249 00:14:26,690 --> 00:14:28,340 And now let's fit that in. 250 00:14:29,120 --> 00:14:30,050 So say path. 251 00:14:30,350 --> 00:14:33,170 And then here is where we're actually going to have the detail for the path. 252 00:14:33,950 --> 00:14:38,390 So in that case, we simply insert the detail view. 253 00:14:38,420 --> 00:14:40,850 So we're going to say this is going to be book. 254 00:14:42,170 --> 00:14:43,850 And this can be integer. 255 00:14:45,540 --> 00:14:54,610 Pick forward slash and then I could then say views dot and then that would be my book detail you will 256 00:14:54,660 --> 00:14:55,380 see book. 257 00:14:56,330 --> 00:14:56,960 Detail. 258 00:14:58,870 --> 00:14:59,830 As you. 259 00:15:01,200 --> 00:15:04,170 And I could give it the name detail book. 260 00:15:05,590 --> 00:15:07,060 And save that right there. 261 00:15:08,350 --> 00:15:10,270 All right, so let's try this one more time here. 262 00:15:11,110 --> 00:15:12,520 Make sure we're not committing an error. 263 00:15:13,120 --> 00:15:16,630 So let's go back to Create Book, which is going to be the third book. 264 00:15:17,890 --> 00:15:19,150 So a third test book. 265 00:15:20,920 --> 00:15:21,850 And I'm going to type. 266 00:15:22,030 --> 00:15:24,400 I remembered you all this time. 267 00:15:26,090 --> 00:15:27,170 ISBN number. 268 00:15:27,200 --> 00:15:28,640 Remember, these have to be unique. 269 00:15:28,640 --> 00:15:29,420 I believe so. 270 00:15:30,630 --> 00:15:33,180 You make an error if you keep repeating ISBN numbers. 271 00:15:34,020 --> 00:15:34,950 Let's create. 272 00:15:35,930 --> 00:15:37,900 And it looks like we actually used the wrong name. 273 00:15:38,150 --> 00:15:38,900 Book detail. 274 00:15:38,900 --> 00:15:39,800 Not detail. 275 00:15:39,810 --> 00:15:40,160 Book. 276 00:15:41,080 --> 00:15:43,900 So say book detail. 277 00:15:44,770 --> 00:15:46,720 Save that and. 278 00:15:47,980 --> 00:15:49,050 One more time here. 279 00:15:49,060 --> 00:15:51,580 So this will now be my fourth test book. 280 00:15:52,780 --> 00:15:53,950 So a fourth test book. 281 00:15:53,950 --> 00:15:59,440 Here is time and selected the correct name. 282 00:16:00,660 --> 00:16:04,990 Let's give this a unique spin it creates. 283 00:16:05,010 --> 00:16:05,760 And there we go. 284 00:16:06,180 --> 00:16:06,480 Okay. 285 00:16:06,810 --> 00:16:11,760 So let me go through the steps that I did to remember how to actually get this detailed book to work. 286 00:16:12,270 --> 00:16:18,660 So coming back here, we come to our views and we create this very simple view which is based off the 287 00:16:18,660 --> 00:16:19,650 generic create view. 288 00:16:20,100 --> 00:16:20,970 So that worked out. 289 00:16:21,000 --> 00:16:23,610 But remember, in order to use that view, you have to have the form. 290 00:16:23,970 --> 00:16:27,990 So we have the form and we connected that through URLs as shown here create book. 291 00:16:28,410 --> 00:16:33,270 Then after creating that book, the default is to go to that book's detail page. 292 00:16:33,660 --> 00:16:35,670 Now, that's where I forgot to actually create the view. 293 00:16:35,730 --> 00:16:37,590 So I created the book detail page. 294 00:16:37,950 --> 00:16:41,400 Then I got the error that said, I can't find this book detail view. 295 00:16:41,640 --> 00:16:45,300 Well, that's because I hadn't actually connected it through your URL, so I connected through your 296 00:16:45,300 --> 00:16:45,810 URL. 297 00:16:45,810 --> 00:16:51,360 But then the default name I was looking for was book underscore detail, not detail or score book. 298 00:16:51,370 --> 00:16:53,880 And it actually told us that in the error message. 299 00:16:54,210 --> 00:16:59,880 But now I should have enough of a skeleton to focus on users. 300 00:17:00,060 --> 00:17:02,160 So what do I actually have so far? 301 00:17:02,700 --> 00:17:08,849 I have a home page that has the ability to look up things like books, the number available, etc. And 302 00:17:08,849 --> 00:17:12,569 then I also have the ability to create new books. 303 00:17:12,599 --> 00:17:17,730 So if I go to base of my URLs for slash catalog, for slash create book. 304 00:17:18,089 --> 00:17:18,930 So if I go here. 305 00:17:21,180 --> 00:17:23,970 Then I have the ability to create a new book and go to its detail page. 306 00:17:24,210 --> 00:17:27,880 So that is the entire skeleton we need to begin to explore. 307 00:17:27,900 --> 00:17:32,220 User Sessions And the main idea here is based off these views. 308 00:17:32,220 --> 00:17:37,740 We already know how to create all kinds of views, such as lists, views, detailed views, all these 309 00:17:37,830 --> 00:17:39,030 different class based views. 310 00:17:39,450 --> 00:17:44,990 But what if I only want someone I know like a special librarian, to be able to create new books? 311 00:17:45,000 --> 00:17:49,200 I don't want everyone visiting the library site to have access to this form. 312 00:17:49,620 --> 00:17:55,440 So essentially when we're thinking about users, we only want people to have access to certain pages. 313 00:17:55,440 --> 00:17:59,160 And that's what I'm going to focus on next now that we have the skeleton code. 314 00:17:59,430 --> 00:18:01,100 So I'll see you in the next lecture.