WEBVTT 00:01.990 --> 00:11.110 Okay, let's set up our views and serializers to expose our models to our API so I can close the admin 00:11.110 --> 00:13.800 now and we have our models here. 00:13.810 --> 00:18.850 And also I will close this URLs here and also I can do with the settings here. 00:18.850 --> 00:26.950 So we have models we need to create a new file and we'll call it the realizers. 00:27.310 --> 00:27.970 PY. 00:28.720 --> 00:31.510 This is the same way as we've done before. 00:31.510 --> 00:33.550 So first I will import. 00:35.120 --> 00:35.870 Uh, sorry. 00:35.900 --> 00:39.890 From rest framework. 00:40.190 --> 00:43.760 Import serializers. 00:43.790 --> 00:49.460 We'll import serializer and we'll create for each our model a new serializer. 00:49.460 --> 00:53.690 So class movie serializer. 00:57.650 --> 00:59.930 And we'll do Serializers. 01:00.440 --> 01:02.450 Model Serializer. 01:02.450 --> 01:06.350 We've done that before, and then we do class meta. 01:06.800 --> 01:12.770 And inside here we can decide what will be in our serializer. 01:12.770 --> 01:15.260 So first the model. 01:18.740 --> 01:22.370 It's going to be our movie model. 01:22.550 --> 01:24.260 We need to import that. 01:24.260 --> 01:33.320 So from current directory models, import movie and then we can decide on the fields. 01:35.250 --> 01:39.900 So the fields will be actually, that should be equal. 01:39.900 --> 01:40.620 Fine. 01:41.010 --> 01:41.600 Sorry. 01:41.610 --> 01:42.450 My mistake. 01:42.460 --> 01:44.720 So the fields should be. 01:44.730 --> 01:47.850 We have available ID then. 01:47.850 --> 01:48.540 We have. 01:49.810 --> 01:50.830 Title. 01:50.830 --> 01:54.280 And then we have description. 01:54.580 --> 02:03.160 And that's the same fields as are we have title description here and ID is added automatically for us 02:03.160 --> 02:04.120 by Django. 02:04.210 --> 02:07.000 So we have that serializer here. 02:07.000 --> 02:11.140 And then what we can do to speed up, I can just duplicate it. 02:11.590 --> 02:15.190 And then another serializer will be rating. 02:16.830 --> 02:21.360 So we need to also change this model to rating. 02:21.360 --> 02:27.900 And this will also import rating here for rating. 02:27.900 --> 02:32.220 What we have is we have ID stars. 02:34.350 --> 02:38.880 We have user and then we have movie. 02:40.750 --> 02:44.050 And we have our serializers set up. 02:44.080 --> 02:51.520 What we also need to do is we need to go to the views and inside the views we'll create a views for 02:51.520 --> 02:55.210 each of the serializer so as before class. 02:57.290 --> 02:57.890 Movie. 02:58.670 --> 03:03.020 Few said like that and then we'll do. 03:04.200 --> 03:06.480 We need to import that. 03:07.630 --> 03:12.430 So from rest framework import. 03:13.950 --> 03:18.180 View set and this view sets we can use here. 03:19.320 --> 03:21.470 Model view set like that. 03:21.480 --> 03:27.630 So what needs to include their query set? 03:27.750 --> 03:30.330 And that's going to be our movie. 03:31.440 --> 03:37.080 Objects and then we'll do all like that. 03:37.110 --> 03:39.270 We need to import our movie. 03:39.300 --> 03:41.130 So from. 03:42.750 --> 03:51.660 Models import movie also will also import rating from here because we'll use it in a second. 03:51.660 --> 03:56.310 So we have our query set and then we'll do serializer class. 03:56.310 --> 03:59.070 What serializer for this movie view set. 03:59.100 --> 04:03.990 We have Serializers here and that's our movie Serializer. 04:03.990 --> 04:06.120 So I can pass it here. 04:06.120 --> 04:10.560 Actually, the serializer class, it's a tuple, so I can do it like that. 04:10.560 --> 04:12.630 And then also I need to import it. 04:12.630 --> 04:21.330 So from Serializers import Movie Serializer and the Serializer class and the query set is set up for 04:21.330 --> 04:30.570 our movies, then I can duplicate this Ctrl D and then I will do rating view set. 04:31.110 --> 04:36.240 And then what I have to do is I have already imported that. 04:36.240 --> 04:43.570 So in this case we'll select all the ratings and also we'll use the ratings serializer. 04:43.570 --> 04:49.210 And this this one needs to be also imported from serializers like that. 04:49.300 --> 04:55.990 So basically that's a typical setup as we have it here, and we've done that before. 04:55.990 --> 05:04.720 So there is not a new I've done it quite fast, but we know how to do it from the previous section when 05:04.720 --> 05:06.250 we talked about Django. 05:06.370 --> 05:11.260 So what we set up so far, we have our models with a different fields. 05:11.260 --> 05:16.810 Then we create new file serializers and for each model we've create different serializer. 05:16.810 --> 05:22.510 We tell the serializer which model we are using and what fields we would like to use it. 05:22.510 --> 05:29.230 So we in that case, we have to also, in the view set in the views we've created, view set for each 05:29.230 --> 05:29.740 model. 05:29.740 --> 05:38.410 So it's a lot of typing here, but basically we are creating view sets using the built in Django rest 05:38.410 --> 05:45.250 framework view set, the model view set here and we set up the query set which is what? 05:46.010 --> 05:48.830 Set of records from database we would like to use. 05:48.830 --> 05:51.710 And in our case, we would like to use all movies. 05:51.710 --> 05:57.050 And then we tell also what serializer we will be using for the movie set. 05:57.080 --> 06:04.580 We're using Movie Serializer, and for the rating view set, we said we use rating serializer. 06:04.580 --> 06:07.220 So all all of that is already set up. 06:07.220 --> 06:14.390 What we can do also is we need to go to URLs here and register our view sets in our router. 06:14.390 --> 06:17.180 So router. 06:20.280 --> 06:24.570 Register and then we can register. 06:24.840 --> 06:33.100 This view set as we see here, I can copy that and register that on the router. 06:33.120 --> 06:42.590 So the first argument will be movies, which is just a string that will be inside our path. 06:42.600 --> 06:45.870 And the second argument is the view set itself. 06:45.870 --> 06:47.430 We need to import that. 06:47.430 --> 06:48.570 So from. 06:50.490 --> 06:52.950 Views import. 06:53.040 --> 06:54.270 Movie view set. 06:54.270 --> 06:56.040 And we have that here. 06:56.160 --> 06:58.680 Also I will register another. 07:01.880 --> 07:04.160 View that which is rating view Z. 07:04.730 --> 07:14.310 So coming back here, I import view set, use it here and that will be ratings like that. 07:14.330 --> 07:19.610 So I save it now and then I can run it. 07:20.850 --> 07:29.490 And let's see what I can do in our I will copy that URL and let's start to test our application. 07:29.490 --> 07:37.350 So I will do like that and then I can go API and then movies. 07:37.560 --> 07:43.190 That's what I registered in our database and we have some problems now. 07:43.200 --> 07:50.010 Page not found API movie, so let's come back here. 07:50.010 --> 07:51.750 So let's try to debug it. 07:51.750 --> 08:00.750 We'll go to the Chrome and let's go to our URLs like that and then we have admin and we have our API. 08:00.750 --> 08:03.090 So let's go to API. 08:04.650 --> 08:05.490 Like that. 08:05.760 --> 08:09.930 And then we have our movies and then we have our ratings. 08:09.930 --> 08:12.510 So everything looks like it's working here. 08:12.510 --> 08:20.190 So I will click on movies and then topple Object is not callable, so we can see our error there. 08:20.190 --> 08:21.720 And which one is that? 08:21.720 --> 08:25.470 So basically that's a problem when we have. 08:26.760 --> 08:28.800 A tuple that has been registered. 08:28.800 --> 08:30.090 Let me take a look. 08:34.070 --> 08:40.460 And Dave, you said and actually I made a mistake because the serializer class can't accept more than 08:40.460 --> 08:40.790 one. 08:40.790 --> 08:47.150 So in our case, it has to be just one serializer like that. 08:47.150 --> 08:49.100 And then I will save it here. 08:50.300 --> 08:51.830 So that's gone. 08:51.830 --> 08:59.780 And then if we refresh it now, you can see I have empty results of movies just to make sure I will 08:59.780 --> 08:59.990 go. 09:00.020 --> 09:01.940 The same with the ratings. 09:03.610 --> 09:05.950 Uh, ratings. 09:05.950 --> 09:06.850 I misspell it. 09:06.850 --> 09:09.460 So ratings like that. 09:09.460 --> 09:11.440 And I have the same information here. 09:11.440 --> 09:15.610 So what I can do is I can come back to the postman and send it again. 09:18.990 --> 09:20.190 Page not found. 09:20.250 --> 09:21.360 Not available. 09:21.480 --> 09:27.060 And the reason for this is so I will copy that. 09:28.050 --> 09:30.600 Let's try this one. 09:31.870 --> 09:32.650 Ratings. 09:33.640 --> 09:37.750 And you can see empty red results there and movies. 09:40.280 --> 09:41.630 An empty vessel there. 09:41.640 --> 09:43.640 I think I had misspelled it. 09:43.640 --> 09:46.180 So that was movie instead of movies. 09:46.190 --> 09:49.340 So our URLs are plural. 09:49.340 --> 09:51.650 So we have movies and ratings. 09:51.650 --> 09:55.490 So we have our application kind of running. 09:55.490 --> 10:01.010 So we have our movies API working and also the ratings. 10:01.010 --> 10:04.490 So at the moment we have nothing in our database. 10:04.490 --> 10:09.350 So in the next video we'll try to create some records in our database. 10:09.350 --> 10:15.170 But for doing that, we are not going to use Django, we are not going to use this interface and that 10:15.170 --> 10:17.420 is available here as we can use it. 10:17.420 --> 10:24.980 But we'll try to do everything in our API in The Postman and that will kind of mimic what we will also 10:24.980 --> 10:28.910 need to recreate later on in our front end application.