1 00:00:07,070 --> 00:00:08,900 Come back in this video. 2 00:00:08,900 --> 00:00:12,630 Let's see how we can update a document. 3 00:00:12,650 --> 00:00:19,260 So let's say that after one year, I want to change my name, to change how I'm going to do it. 4 00:00:19,280 --> 00:00:20,460 Let's see how. 5 00:00:20,480 --> 00:00:23,710 So back to Visual City Code as always. 6 00:00:23,720 --> 00:00:30,260 Let's comment this one and let's have a beautiful comment here says update record. 7 00:00:30,590 --> 00:00:32,210 So here we go. 8 00:00:32,509 --> 00:00:37,620 The first step is I need to find the particular student I want to update. 9 00:00:37,640 --> 00:00:42,530 And after that, I need to find the fields that I want to update. 10 00:00:42,800 --> 00:00:44,480 Do you remember? 11 00:00:44,480 --> 00:00:48,170 And API creation using the file system. 12 00:00:48,170 --> 00:00:54,820 I told you that if you get to MongoDB, if you want to update a record, it's going to be pretty easy. 13 00:00:54,830 --> 00:00:56,270 This is the time. 14 00:00:56,390 --> 00:01:02,570 But when we're dealing with the files to be able to update a record, we went through a couple of steps, 15 00:01:02,570 --> 00:01:07,340 so let's see how easy we are going to update record inside MongoDB. 16 00:01:07,370 --> 00:01:13,030 First step is going to find it and then get a property you want to update and that is all. 17 00:01:13,040 --> 00:01:15,830 So let's write two lines of code to get it done. 18 00:01:15,830 --> 00:01:16,910 So here we go. 19 00:01:16,940 --> 00:01:19,250 Update Record Const. 20 00:01:20,530 --> 00:01:21,680 Updated. 21 00:01:23,080 --> 00:01:31,450 Student is equal to a weight and then the student collection which is this one on that we have what 22 00:01:31,450 --> 00:01:33,820 is called updates one. 23 00:01:33,820 --> 00:01:42,370 We have update one and update money one, updates a single record and many updates multiple records. 24 00:01:42,370 --> 00:01:48,250 So let's stick to update one and this one, it takes in two arguments. 25 00:01:48,250 --> 00:01:51,910 One is the user or the record we want to find. 26 00:01:52,090 --> 00:01:57,970 So update works like this combination of find with some additional properties. 27 00:01:57,970 --> 00:02:05,380 So let's say that I want to find a student by name Emmanuel and this is a student I want to update. 28 00:02:05,530 --> 00:02:09,669 The next element is what properties I want to update. 29 00:02:09,669 --> 00:02:14,500 I can update the city or the name, so the choice is mine. 30 00:02:14,740 --> 00:02:18,730 So I'll provide object and let me expand it like that. 31 00:02:18,730 --> 00:02:23,110 And here I'm going to provide dollar sign set. 32 00:02:24,500 --> 00:02:32,480 As the name implies, for setting a new property and colour on objects and the fields that we want to 33 00:02:32,480 --> 00:02:33,190 update. 34 00:02:33,200 --> 00:02:37,940 I want to update my name to change one. 35 00:02:38,660 --> 00:02:45,650 Now, with this one, save it and let's go ahead and console.log the updated student. 36 00:02:46,970 --> 00:02:53,780 All right, let's get back to the terminal, play the terminal here and let's restart. 37 00:02:54,140 --> 00:03:01,910 And you can see that acknowledged, if I check my MongoDB collection, you can see that the name has 38 00:03:01,910 --> 00:03:03,140 been updated. 39 00:03:03,140 --> 00:03:05,300 Let's refresh it and let's see. 40 00:03:07,050 --> 00:03:15,540 So let's look through now instead of Yemen where I see up here, that's how we update the last crowd 41 00:03:15,600 --> 00:03:18,350 operation is how we can delete. 42 00:03:18,360 --> 00:03:22,260 But before we continue, we can also update multiple fields. 43 00:03:22,500 --> 00:03:26,340 So let's say I want to change my city to Accra. 44 00:03:26,370 --> 00:03:33,750 Now, if I save it and now back to the terminal and I restart it, you're going to see that the name 45 00:03:33,750 --> 00:03:40,140 of Acura has been updated and we have acknowledged meaning everything is perfect. 46 00:03:40,260 --> 00:03:43,560 So if you check your dashboard, you're going to see the updated one. 47 00:03:43,590 --> 00:03:47,490 The last operation is how we can delete a record. 48 00:03:47,490 --> 00:03:49,440 So here are going to be delete. 49 00:03:49,470 --> 00:03:51,960 Let's get into that in the next video.