WEBVTT 00:03.760 --> 00:05.260 Hey, did everyone had their share? 00:05.260 --> 00:07.720 And this video should be longer at your side? 00:07.720 --> 00:09.190 Not my side. 00:09.190 --> 00:14.500 And this video is, moreover, about to give you some inspiration that, hey, once you are done with 00:14.500 --> 00:18.970 this course, you should really next up, spend probably entire week or maybe month. 00:18.970 --> 00:24.820 It would be not wrong to spend time on Mongoose and MongoDB over the time in this course. 00:24.820 --> 00:28.900 Also, I will walk you through with a couple of instances that only you can understand if you are reading 00:28.900 --> 00:33.790 the documentation thoroughly and asking some questions, a meaningful question that you want to find 00:33.790 --> 00:34.900 answer on your own. 00:34.900 --> 00:36.610 Let me show you some example of that. 00:36.820 --> 00:41.800 Now, in the previous of the section, we remember, if we created a couple of kind of authentication 00:41.800 --> 00:44.950 process, we stored some of the users in the database as well. 00:45.190 --> 00:50.290 Some of you might haven't got that question, but I would still like to walk you through with that question. 00:50.290 --> 00:51.820 So let me first open this up. 00:51.820 --> 00:58.540 So I'm going to go ahead and open up our AE back end and we created all of this into this AE auth system. 00:58.540 --> 01:04.030 So let me go ahead and open up the VS code and just drag and drop this auth system up here because I 01:04.030 --> 01:08.140 wanted to show you something really, really important and we have models in this section only. 01:08.350 --> 01:14.380 So in case you noticed up here, we did something deliberately wrong here, which is not supposed to 01:14.380 --> 01:17.170 happen, but I deliberately did it just to make this video. 01:17.170 --> 01:22.690 So notice here, this is a very small schema of user schema, but we deliberately wrote the Mongoose 01:22.690 --> 01:24.130 dot model as user. 01:24.130 --> 01:26.020 Now this is usually not the case. 01:26.020 --> 01:31.600 How you find it, you go ahead and usually find that that this u is written as uppercase u. 01:31.600 --> 01:35.950 This is how the Carmelita is being written, but via uppercase y lowercase. 01:35.950 --> 01:39.760 Why does it matter and what's going to happen now? 01:39.760 --> 01:45.610 Not only that, if I go ahead and open up my MongoDB visualizer, let me just go ahead and open that 01:45.610 --> 01:45.970 up. 01:47.820 --> 01:48.150 Okay. 01:48.150 --> 01:49.410 So finally it is up and running. 01:49.410 --> 01:54.180 Let me go ahead and connect to my local database and we call this one as ae auth. 01:54.180 --> 01:57.630 If I go up here notice very carefully it says users. 01:57.630 --> 02:01.500 So I didn't ask it to create users, I just asked them to create user. 02:01.500 --> 02:06.870 And this is exactly I have mentioned up here in here that, hey, just create a schema for user, not 02:06.870 --> 02:07.440 users. 02:07.440 --> 02:07.950 So what? 02:07.950 --> 02:09.480 Why does it happen now? 02:09.480 --> 02:14.760 This is all because you should be reading mode with the mongoose and spend some more time in the documentation. 02:14.760 --> 02:18.930 So promise that after completing this course you will be spending more time with the mongoose. 02:18.930 --> 02:21.090 And let me show you a reason why does it happen? 02:21.090 --> 02:25.590 So if I go ahead and open up this mongoose documentation and we are going to be studying the models 02:25.590 --> 02:27.240 for that, how to create the model. 02:27.270 --> 02:31.340 They give you a very basic example here that, hey, you can go ahead and use this schema which has 02:31.350 --> 02:33.780 simple name, string and size of the tank. 02:33.780 --> 02:38.940 And then we go ahead and say Mongoose model the tank and the schema that we have provided. 02:38.940 --> 02:41.220 So in the tank they write this T as capital. 02:41.250 --> 02:46.290 Now whether you write this T is capital or lowercase doesn't matter because the next line is very important. 02:46.320 --> 02:49.740 The first argument is the singular name of the model of the collection. 02:49.740 --> 02:52.020 So singular name here can be tank with uppercase. 02:52.020 --> 02:53.640 Lowercase doesn't really matter. 02:53.670 --> 02:58.620 Mongoose automatically looks for plural lowercase version of your model. 02:58.620 --> 03:02.790 So Mongoose, no matter what you write, you write a tank or you write bus. 03:02.790 --> 03:08.400 Mongoose is automatically going to look for some of the models and will convert into pure and we'll 03:08.400 --> 03:11.640 bring it in all lowercase that is finally going to happen. 03:11.640 --> 03:14.700 So doesn't matter if you put it a lowercase or uppercase how you do that. 03:14.700 --> 03:18.000 This is exactly how the result and the outcome is going to come in. 03:18.000 --> 03:23.880 Now, I have seen in some of the cases the plural version designed by the mongo is not really the actual 03:23.880 --> 03:24.990 correct version of it. 03:24.990 --> 03:26.130 But hey, we are programmers. 03:26.130 --> 03:31.380 We are not that much panicked about how the English actually works in moving further notice here. 03:31.380 --> 03:36.270 Another line says the model function makes a copy of schema in case you get that nice, but otherwise 03:36.420 --> 03:41.640 make sure that you add everything that you want of the schema, including hooks before calling the model. 03:41.640 --> 03:47.640 So before we actually go ahead and run this mongoose model and all of that, in case you have any functions 03:47.640 --> 03:53.100 which we will have in the next upcoming section, then make sure before calling this mongoose or model, 03:53.100 --> 03:55.530 make sure you all use that pre function and post. 03:55.530 --> 03:58.410 Remember we talked about some of the pre and post hooks and all of that. 03:58.410 --> 04:03.480 You want to write them all before I have seen so many times students coming in that hey, we have written 04:03.480 --> 04:05.520 these functions, but they are not executing. 04:05.520 --> 04:10.680 And I, I just mentioned this line, hey, did you read this this before using this mongoose dot model, 04:10.680 --> 04:12.240 you need to write them just above it. 04:12.240 --> 04:13.290 And that was it. 04:13.290 --> 04:17.700 So again, I'm telling you this because reading the documentation is one of the most important part. 04:17.700 --> 04:20.130 It is also boring, I'll give you on that. 04:20.130 --> 04:25.500 But with the course which is designed, focused all around the documentation, you actually explore 04:25.500 --> 04:27.690 a bit of documentation alongside with me. 04:27.690 --> 04:30.090 This is at least I can do so again. 04:30.090 --> 04:32.670 Go ahead and enjoy some documentation in your free time. 04:32.670 --> 04:34.050 Just read a few of the lines. 04:34.050 --> 04:39.150 Maybe something interesting will pop up and in the next section or not section, the next video we are 04:39.150 --> 04:42.060 going to go ahead and read the documentation of Razorpay. 04:42.060 --> 04:47.850 We will finally create a new project and we will create a kind of a bare minimum basic for handling 04:47.850 --> 04:48.330 payments. 04:48.330 --> 04:49.500 Why are razorpay?