WEBVTT 00:01.530 --> 00:05.390 Okay, let's try to test our application a little bit. 00:05.400 --> 00:10.560 So what we will need to do is let's try to create some records in our database. 00:10.560 --> 00:17.970 So I will pick a post method, which is for creating new records, and then we'll need to go to the 00:17.970 --> 00:20.640 body and I will do form data. 00:20.640 --> 00:28.710 So basically what we need to send to the movies, if I will try to send it now you can see title and 00:28.710 --> 00:37.830 description is this is required because we can't just post anything with we can't post a title without 00:37.830 --> 00:38.910 the description. 00:39.810 --> 00:45.360 So let's create a movie called Titanic. 00:47.690 --> 00:48.470 Uh, sorry. 00:48.770 --> 00:50.870 We need to do a title. 00:53.250 --> 00:54.090 Titanic. 00:58.420 --> 00:59.620 And description. 01:01.450 --> 01:04.780 Romantic movie. 01:08.340 --> 01:09.480 And something. 01:09.480 --> 01:11.160 It doesn't really matter what we are doing. 01:11.160 --> 01:16.230 This is a kind of mock up data now, so let's try to send it now. 01:17.100 --> 01:17.760 We'll send it. 01:17.760 --> 01:21.210 And you can see here the record has been created. 01:21.210 --> 01:24.180 So if I will change the post to get now. 01:25.880 --> 01:33.770 I have one record in the database and let's try to create a second one just to have something to work 01:33.770 --> 01:34.190 with. 01:34.190 --> 01:38.600 And then we'll have, let's say, a water and then description. 01:40.210 --> 01:44.950 Science fiction movie, which blew guys. 01:44.980 --> 01:45.820 Whatever. 01:46.390 --> 01:50.320 So we have title and description saved. 01:50.350 --> 01:56.560 Now, if we go back to get we expecting two records and in fact we have two records. 01:56.560 --> 02:01.090 So our post is working and then our get is working. 02:01.090 --> 02:07.750 Let's try our put put is for changing the database. 02:07.750 --> 02:09.900 So changing the records we have. 02:09.910 --> 02:17.170 So let's say we have our Titanic here and this is ID one. 02:17.170 --> 02:25.390 So if I will pass ID in the URL at the end one and then slash and I will use put method, whatever I 02:25.390 --> 02:27.820 will send here, it will be updated. 02:27.820 --> 02:30.100 So let's say romantic movie. 02:30.100 --> 02:38.020 I will just update the description just to be romantic movie without that and something. 02:38.020 --> 02:46.210 So I will send it now and you can see the result is updated if I will go get all movies. 02:47.890 --> 02:49.140 I have updated. 02:49.150 --> 02:51.250 So this is working fine. 02:51.250 --> 03:04.960 Let's create a third one to remove and I will create new records now for our purpose to remove it. 03:04.960 --> 03:08.860 So I have Titanic and Avatar that will that are valid records. 03:08.860 --> 03:11.230 But let's say Titanic for remove. 03:11.230 --> 03:12.880 I need to remove this one. 03:12.880 --> 03:20.350 So what I can do is we know that ID of this item is three, so we'll pass three here and then I will 03:20.350 --> 03:25.210 pick a method delete here and then I will send it. 03:25.360 --> 03:26.980 So that's been removed. 03:27.010 --> 03:32.350 I don't see anything in the output here because we just removed the database, so there is nothing to 03:32.350 --> 03:37.150 output and then if I will go get for the all movies. 03:37.150 --> 03:44.230 So movies slash and nothing else, you can see we're back to having two records in our database. 03:44.230 --> 03:49.490 So that's kind of proving that our application is working with the movies. 03:49.490 --> 03:52.910 So what can we do with the ratings now? 03:52.910 --> 03:56.360 So if I go ratings like that. 03:57.140 --> 04:01.850 There is no ratings now, so let's try to create a new rating. 04:01.850 --> 04:11.450 So I will try to post rating and let's say I will do stars and I will try to send, let's say, three 04:11.450 --> 04:12.230 stars. 04:12.470 --> 04:16.580 I will add them for for the moment, I will just remove the description here. 04:16.580 --> 04:18.590 And we are trying to send the stars. 04:18.590 --> 04:20.780 Three So what will happen here? 04:21.050 --> 04:28.010 User and movie is required so I can do movie. 04:28.130 --> 04:36.950 We remember from the previous if I will go movies here that will open a new tab and let's send a use 04:36.950 --> 04:37.940 movies here. 04:37.940 --> 04:40.760 So we have ID one and ID two. 04:40.760 --> 04:43.070 Let's create a. 04:44.360 --> 04:46.460 Movie one. 04:46.460 --> 04:51.020 We need to pass ID for that movie and then user. 04:51.020 --> 04:53.510 So what is actually our user? 04:53.510 --> 05:02.840 What we can do is if I go here to the admin and we will I will show you later on how we can actually 05:02.840 --> 05:07.040 get the data for the login user when we will have authentication. 05:07.040 --> 05:13.130 But if at the moment, if we go to the users here and I will click on the Christian, you can see here 05:13.130 --> 05:21.950 user one change URL that means this is the ID of that user and in fact it is the first user in the database 05:21.950 --> 05:27.020 because we've created that one so we can be sure the ID is one. 05:27.170 --> 05:32.030 So basically what we are doing here is we are trying to create a rating. 05:32.180 --> 05:41.660 We are trying to create a rating with a stars three stars for Movie one, which is our Titanic, and 05:41.660 --> 05:45.390 we are using our user, which is also one. 05:45.390 --> 05:47.460 So let's try to do this now. 05:48.420 --> 05:51.930 And you can see here rating that's ID of the rating. 05:51.930 --> 05:56.190 And then we have three stars for this user and for this movie. 05:56.190 --> 06:02.760 So if I will try to create a new one and The Post is creating new records, so let's say I would like 06:02.760 --> 06:05.880 to change it for four and I will send it. 06:05.880 --> 06:13.470 Now, what will happen is the field user movie must be a unique set and this is what I will. 06:13.470 --> 06:15.900 I told you about it when we had it. 06:16.860 --> 06:21.600 This models unique together here so. 06:22.580 --> 06:30.680 What we are trying to do here is we are trying to create a new record, new rating with the movie and 06:30.680 --> 06:35.510 user that are the same that already exist in our database. 06:35.540 --> 06:41.150 We have our rating for this movie and we have a rating for this user already. 06:41.150 --> 06:42.890 So that will throw an error. 06:42.890 --> 06:49.550 And the reason for this is that unique together, this is form you uniqueness the user and movie. 06:49.580 --> 06:52.610 We cannot have the same one in the database. 06:55.360 --> 06:58.270 But we could use method put. 06:59.000 --> 07:00.380 If I will put it now. 07:02.280 --> 07:12.120 And you can see but is not allowed here because we haven't specified what to do with the put yet. 07:12.150 --> 07:13.710 That's unique together. 07:13.710 --> 07:22.380 Also, it's kind of changing the way we can use our application and we will create actually our own 07:22.770 --> 07:27.900 method later on and we can do all the validation and all our logic. 07:27.900 --> 07:33.120 We can have it in there, but at the moment we can see this is not available. 07:33.300 --> 07:37.890 Okay, so let's try to create a new one. 07:37.890 --> 07:44.670 So I will do the post, but instead of the movie one that we already had our rating on, let's create 07:44.670 --> 07:46.200 a new movie. 07:46.200 --> 07:51.960 I mean create new ratings for a new movie, which is this movie here, Avatar. 07:51.960 --> 07:55.440 And let's try to create a ten stars. 07:58.280 --> 08:03.530 And then you can see ensure the value is less than or equal five. 08:03.560 --> 08:06.590 So if I will try to do zero. 08:08.290 --> 08:11.350 Ensure this value is greater or equal to one. 08:11.350 --> 08:13.930 And the reason we see that. 08:15.800 --> 08:22.340 Message is this validators we have here minimum value and the maximum value. 08:22.340 --> 08:29.600 So you can see here when we write this, this maybe had no sense, but now when we start using our application 08:29.600 --> 08:40.370 and we start to pass some values that won't fit our database, then we can see some very useful information 08:40.370 --> 08:40.820 here. 08:40.820 --> 08:45.080 And actually this will prevent us from from passing this. 08:45.080 --> 08:52.460 And in the same way, if I will try to pass any string here, you can see a valid integer is required. 08:52.460 --> 08:56.180 So Django is doing that, that validation for us. 08:56.210 --> 09:03.080 We decided that this field is integer, so it will validate basically on the type. 09:03.080 --> 09:07.430 So integer only will be accepted, not the strings like here. 09:07.430 --> 09:13.670 And also we need to pass a correct number so we accept everything from 1 to 5. 09:13.700 --> 09:19.860 But if we will pass something outside of that range, then it won't be accepted because we told the 09:19.860 --> 09:23.250 validators to validate our input. 09:23.250 --> 09:26.100 So basically that's how it works. 09:26.160 --> 09:29.430 We have a lot of things to do here. 09:29.430 --> 09:37.740 So what we also need to do, we need to allow users to log in, retrieve the users from the database, 09:37.740 --> 09:41.370 and that user can be used for passing the ratings. 09:41.370 --> 09:49.140 Also, we need to create our own method for having the ratings, and in this way we can actually disable 09:49.170 --> 09:54.870 built in and just focus for, put and post our own. 09:54.900 --> 10:03.300 And also we need to create a few more serializers and having some build methods to put something more 10:03.300 --> 10:04.830 in the movies. 10:04.860 --> 10:11.760 At the moment we don't display a serializer, we don't display any information about the ratings here, 10:11.760 --> 10:14.730 but we could possibly do that. 10:14.850 --> 10:17.910 So we will do that in the next videos.