1 00:00:01,180 --> 00:00:03,574 Let's now render the search results 2 00:00:03,574 --> 00:00:06,093 by creating a new view. 3 00:00:07,960 --> 00:00:11,300 So we already have the searchView 4 00:00:11,300 --> 00:00:15,390 but now we also want to create like a resultsView. 5 00:00:15,390 --> 00:00:19,030 So a resultsView, which will contain a render 6 00:00:19,030 --> 00:00:22,470 so that we can then call that render here 7 00:00:22,470 --> 00:00:24,033 with these search results. 8 00:00:24,950 --> 00:00:26,853 So similar to what we have here, 9 00:00:27,880 --> 00:00:31,140 so to the recipeView, 10 00:00:31,140 --> 00:00:33,160 which also has a render method, 11 00:00:33,160 --> 00:00:34,990 which takes in some data 12 00:00:34,990 --> 00:00:37,800 and so now, again we want the same 13 00:00:37,800 --> 00:00:40,220 for a results view. 14 00:00:40,220 --> 00:00:42,860 So we also want it to have a render method, 15 00:00:42,860 --> 00:00:45,900 which takes in data and which is then rendered 16 00:00:45,900 --> 00:00:47,853 to our user interface. 17 00:00:49,840 --> 00:00:52,977 So let's create the resultsView.js. 18 00:01:00,630 --> 00:01:02,000 So ResultsView 19 00:01:05,405 --> 00:01:06,920 and so now this view 20 00:01:06,920 --> 00:01:10,860 will actually be pretty similar to the recipeView. 21 00:01:12,510 --> 00:01:14,980 So we don't need that one anymore. 22 00:01:14,980 --> 00:01:17,050 But now, again this one is going 23 00:01:17,050 --> 00:01:18,420 to be very similar. 24 00:01:18,420 --> 00:01:20,370 So we will have a parentElement, 25 00:01:20,370 --> 00:01:22,776 data, these messages. 26 00:01:22,776 --> 00:01:26,360 We will basically also need the same render method, 27 00:01:26,360 --> 00:01:28,806 the same renderSpinner. 28 00:01:28,806 --> 00:01:31,260 So we will need to display the spinner 29 00:01:31,260 --> 00:01:33,350 while the data is being fetched, 30 00:01:33,350 --> 00:01:35,910 so in this case, the search results. 31 00:01:35,910 --> 00:01:39,130 We might need to also render an error 32 00:01:40,700 --> 00:01:45,220 and so now it's time to basically refactor this code 33 00:01:45,220 --> 00:01:47,430 and create a parent class. 34 00:01:47,430 --> 00:01:49,600 So I had mentioned that before 35 00:01:49,600 --> 00:01:52,150 but now it's actually time to do it 36 00:01:52,150 --> 00:01:54,500 because by creating a parent class, 37 00:01:54,500 --> 00:01:58,410 we will then be able to reuse all of these methods 38 00:01:58,410 --> 00:01:59,830 on all the views. 39 00:01:59,830 --> 00:02:02,070 So basically, on all the objects 40 00:02:02,070 --> 00:02:05,303 that are created through all the view classes. 41 00:02:06,270 --> 00:02:09,890 So let's create yet another file here 42 00:02:11,030 --> 00:02:14,013 and I'm calling it View.js. 43 00:02:14,870 --> 00:02:18,967 And so let's create a new class here called View 44 00:02:21,310 --> 00:02:25,113 and so we will then export immediately this class. 45 00:02:26,280 --> 00:02:29,533 And actually, let's make it a default export. 46 00:02:30,420 --> 00:02:34,120 So at this time, we are actually exporting the class itself 47 00:02:34,120 --> 00:02:37,550 because of course, we are not going to create any instance 48 00:02:37,550 --> 00:02:38,950 of this view. 49 00:02:38,950 --> 00:02:41,540 We will only use it as a parent class 50 00:02:41,540 --> 00:02:45,373 of these other child views, all right? 51 00:02:46,660 --> 00:02:49,020 Here in the recipeView, 52 00:02:49,020 --> 00:02:52,663 let's now import that parent class. 53 00:02:54,120 --> 00:02:58,980 So import View as, 54 00:02:58,980 --> 00:03:01,367 or actually, not as but from View 55 00:03:05,580 --> 00:03:07,835 and actually, we don't even need the js 56 00:03:07,835 --> 00:03:12,560 but I like to keep it there for consistency. 57 00:03:12,560 --> 00:03:14,300 And so now, all we need to do 58 00:03:14,300 --> 00:03:16,313 is to basically copy everything 59 00:03:16,313 --> 00:03:18,907 that should be common to all the views 60 00:03:18,907 --> 00:03:22,380 to that parent class. 61 00:03:22,380 --> 00:03:24,030 However, there is one thing 62 00:03:24,030 --> 00:03:26,320 that we still need to change here. 63 00:03:26,320 --> 00:03:28,231 And that is that right now, 64 00:03:28,231 --> 00:03:30,580 with Parcel and Babel, 65 00:03:30,580 --> 00:03:34,470 inheritance between these truly private fields 66 00:03:34,470 --> 00:03:37,083 and methods doesn't really work yet. 67 00:03:38,050 --> 00:03:42,060 So here it was nice to actually use the native way 68 00:03:42,060 --> 00:03:46,500 of JavaScript of protected methods and properties 69 00:03:46,500 --> 00:03:49,213 but now we cannot really use it anymore. 70 00:03:50,210 --> 00:03:53,560 So maybe that might be possible at some point in the future 71 00:03:53,560 --> 00:03:57,230 but for now, we will have to go back to protected fields 72 00:03:57,230 --> 00:03:58,713 and protected methods. 73 00:03:59,620 --> 00:04:04,620 So let's basically select all of these hash symbols 74 00:04:04,990 --> 00:04:07,460 and actually, I will select them like this. 75 00:04:07,460 --> 00:04:09,480 So with the dot because otherwise, 76 00:04:09,480 --> 00:04:11,453 that will also select these ones. 77 00:04:13,030 --> 00:04:15,763 So hitting Command + D here a couple of times. 78 00:04:17,420 --> 00:04:19,430 And then replace it with ._ 79 00:04:21,550 --> 00:04:25,713 and now we just have to change these method names. 80 00:04:30,870 --> 00:04:33,840 So changing from truly private 81 00:04:33,840 --> 00:04:37,693 to only protected using the underscore convention. 82 00:04:38,560 --> 00:04:42,013 And then the same right here. 83 00:04:43,670 --> 00:04:44,503 Okay? 84 00:04:45,760 --> 00:04:48,483 So now our code should still be working. 85 00:04:50,060 --> 00:04:52,520 It says here connection lost 86 00:04:52,520 --> 00:04:55,823 but indeed, our code keeps working here. 87 00:04:57,080 --> 00:04:58,170 Okay? 88 00:04:58,170 --> 00:05:02,220 Let's just check out the search view 89 00:05:02,220 --> 00:05:05,313 and so let's use the same convention here as well. 90 00:05:09,860 --> 00:05:10,693 Okay. 91 00:05:13,180 --> 00:05:15,590 Just here as well. 92 00:05:15,590 --> 00:05:19,233 And now here we also converted everything successfully. 93 00:05:20,140 --> 00:05:23,910 But anyway, let's now basically extract the View class 94 00:05:23,910 --> 00:05:25,590 from this RecipeView. 95 00:05:26,560 --> 00:05:28,890 So what we need in all the views 96 00:05:28,890 --> 00:05:31,200 is this render method, 97 00:05:31,200 --> 00:05:34,343 then this one as well, this one, 98 00:05:35,400 --> 00:05:39,470 and basically everything except for generating the markup 99 00:05:39,470 --> 00:05:40,660 because that, of course, 100 00:05:40,660 --> 00:05:45,500 is gonna be unique to every single view, right? 101 00:05:45,500 --> 00:05:47,230 And also, adding the handler. 102 00:05:47,230 --> 00:05:51,320 But everything else we want to be the same on all the views. 103 00:05:51,320 --> 00:05:53,530 For example, rendering a spinner 104 00:05:53,530 --> 00:05:55,480 will be really easy. 105 00:05:55,480 --> 00:05:58,500 So all the views will simply have this method 106 00:05:58,500 --> 00:06:01,810 and we will then be able to call it on that method 107 00:06:01,810 --> 00:06:05,540 and thanks to the parentElement property here, 108 00:06:05,540 --> 00:06:07,110 it will then know exactly 109 00:06:07,110 --> 00:06:09,870 to which element it should attach the spinner 110 00:06:10,710 --> 00:06:12,900 because again, the parentElement, 111 00:06:12,900 --> 00:06:16,500 of course, will be unique to each single view. 112 00:06:16,500 --> 00:06:18,863 So the parentElement will be unique, 113 00:06:18,863 --> 00:06:21,800 the message, so these two messages 114 00:06:21,800 --> 00:06:25,650 but this data can actually also be on the parent. 115 00:06:25,650 --> 00:06:29,203 So let's copy all of this here or actually cut. 116 00:06:30,670 --> 00:06:33,250 So everything except for adding the handlers 117 00:06:33,250 --> 00:06:34,993 and generating the markup. 118 00:06:37,994 --> 00:06:39,493 So let's put that here. 119 00:06:42,320 --> 00:06:46,490 And here we, of course, then need to extend this one. 120 00:06:46,490 --> 00:06:49,263 So extends View. 121 00:06:50,500 --> 00:06:51,560 Right? 122 00:06:51,560 --> 00:06:55,763 And so let's see if we have everything still in place. 123 00:06:58,020 --> 00:07:01,920 Yeah, so I'm confident that this will work now. 124 00:07:01,920 --> 00:07:02,863 So let's see. 125 00:07:03,800 --> 00:07:07,101 Oh, and icons is not defined. 126 00:07:07,101 --> 00:07:10,560 So let's go back here to our view 127 00:07:10,560 --> 00:07:12,803 where we will have to copy this one. 128 00:07:15,760 --> 00:07:18,833 Because here, of course, we are also using the icons. 129 00:07:20,430 --> 00:07:21,430 Okay. 130 00:07:21,430 --> 00:07:22,373 But here it is. 131 00:07:24,030 --> 00:07:25,110 All right? 132 00:07:25,110 --> 00:07:28,230 So we successfully extracted the View class 133 00:07:28,230 --> 00:07:29,860 from the recipeView. 134 00:07:29,860 --> 00:07:31,370 And now all that's left here 135 00:07:31,370 --> 00:07:34,480 is really what is unique to this view. 136 00:07:34,480 --> 00:07:37,610 And so this makes this even easier to work with 137 00:07:37,610 --> 00:07:42,610 in my opinion because now let's see what we can do here. 138 00:07:43,600 --> 00:07:47,680 So even without any code yet in the results view, 139 00:07:47,680 --> 00:07:50,530 we will already be able to add a spinner 140 00:07:50,530 --> 00:07:51,973 to the search results. 141 00:07:54,150 --> 00:07:55,370 All right? 142 00:07:55,370 --> 00:07:58,170 Well, we cannot really leave it empty. 143 00:07:58,170 --> 00:08:01,253 We still need actually the parent element here. 144 00:08:02,200 --> 00:08:03,033 All right? 145 00:08:03,033 --> 00:08:06,673 And we also need to import the View. 146 00:08:10,320 --> 00:08:11,660 So import View 147 00:08:11,660 --> 00:08:16,360 and then this is just another child class of View. 148 00:08:19,970 --> 00:08:22,630 Then here, we need to say that parentElement 149 00:08:22,630 --> 00:08:24,950 should be well, something. 150 00:08:24,950 --> 00:08:27,373 And let's check out what it actually should be. 151 00:08:28,820 --> 00:08:30,743 So here in index, 152 00:08:35,350 --> 00:08:37,010 let's see. 153 00:08:37,010 --> 00:08:38,380 So it's this here. 154 00:08:38,380 --> 00:08:43,160 So this results element, so this unordered list. 155 00:08:43,160 --> 00:08:45,870 All right, and then basically, 156 00:08:45,870 --> 00:08:48,970 each of the search-results will be one 157 00:08:48,970 --> 00:08:51,340 of these preview elements. 158 00:08:51,340 --> 00:08:53,080 But more about that later. 159 00:08:53,080 --> 00:08:55,720 So for now, let's just set the parentElement 160 00:08:55,720 --> 00:08:59,800 to this results element here in resultView. 161 00:09:02,001 --> 00:09:04,657 So document.querySelector results. 162 00:09:09,290 --> 00:09:12,980 And then we have to export 163 00:09:14,180 --> 00:09:16,210 default just like before 164 00:09:16,210 --> 00:09:18,383 and then a new instance of this view. 165 00:09:19,350 --> 00:09:23,060 And so this way they can only be one ResultsView 166 00:09:23,060 --> 00:09:24,920 and then here in controller, 167 00:09:24,920 --> 00:09:27,080 we can immediately import that 168 00:09:27,080 --> 00:09:29,923 without having to create the instance here manually. 169 00:09:33,260 --> 00:09:36,423 So that's resultsView like this. 170 00:09:37,530 --> 00:09:40,750 And so now here we should already be able 171 00:09:40,750 --> 00:09:42,720 to load the spinner 172 00:09:42,720 --> 00:09:45,223 or actually to display the spinner. 173 00:09:46,550 --> 00:09:48,500 So let's do that at the very beginning. 174 00:09:49,500 --> 00:09:52,130 So resultsView.renderSpinner. 175 00:09:56,230 --> 00:09:59,113 And let's see what happens. 176 00:10:00,360 --> 00:10:04,370 So pizza and here is a small error 177 00:10:04,370 --> 00:10:08,570 and so let's once again do some debugging here 178 00:10:08,570 --> 00:10:10,400 and I hope that you can appreciate 179 00:10:10,400 --> 00:10:12,200 that I'm actually not cutting out 180 00:10:12,200 --> 00:10:14,990 all these like small debugging sessions 181 00:10:14,990 --> 00:10:17,150 so that you can actually see 182 00:10:17,150 --> 00:10:18,720 what I'm doing here. 183 00:10:18,720 --> 00:10:23,720 But anyway, apparently the problem appears here in View.js 184 00:10:23,850 --> 00:10:25,753 at line 14. 185 00:10:29,160 --> 00:10:31,270 So right here. 186 00:10:31,270 --> 00:10:33,873 So it seems like it cannot find the parentElement. 187 00:10:35,320 --> 00:10:37,893 So let's simply log that to the console. 188 00:10:45,960 --> 00:10:49,350 So this here is the result of doing that for the view. 189 00:10:49,350 --> 00:10:52,300 And now let's see. 190 00:10:52,300 --> 00:10:54,023 So now that is undefined. 191 00:10:55,210 --> 00:10:56,580 So to me it seems 192 00:10:56,580 --> 00:11:00,453 like here we selected the wrong element here maybe. 193 00:11:03,530 --> 00:11:04,793 So results. 194 00:11:05,830 --> 00:11:07,240 So that should actually 195 00:11:09,590 --> 00:11:11,290 be correct. 196 00:11:11,290 --> 00:11:13,360 And so should the name. 197 00:11:13,360 --> 00:11:16,840 So I think parentElement is correctly spelled. 198 00:11:16,840 --> 00:11:20,693 Oh, but it's actually called parentElement all written out. 199 00:11:21,960 --> 00:11:23,360 Okay. 200 00:11:23,360 --> 00:11:26,543 So you see, it's actually called parentElement like this. 201 00:11:28,220 --> 00:11:30,490 For some reason, I thought it was called 202 00:11:31,530 --> 00:11:33,753 just like the abbreviation. 203 00:11:35,800 --> 00:11:36,780 Ah. 204 00:11:36,780 --> 00:11:39,763 And you see, here is the nice loading spinner, 205 00:11:40,930 --> 00:11:44,653 spinning away here in our search results. 206 00:11:45,710 --> 00:11:46,590 Right? 207 00:11:46,590 --> 00:11:49,490 And again, all without writing any new code 208 00:11:49,490 --> 00:11:53,070 for displaying that spinner here in the ResultsView 209 00:11:53,070 --> 00:11:58,070 because it is now simply inheriting that method 210 00:11:58,130 --> 00:12:01,703 so that renderSpinner method from its parent class. 211 00:12:03,410 --> 00:12:05,660 So let's get rid of this 212 00:12:05,660 --> 00:12:08,090 and just for the sake of curiosity, 213 00:12:08,090 --> 00:12:10,290 let's actually take a look 214 00:12:10,290 --> 00:12:11,943 at this resultsView, 215 00:12:12,860 --> 00:12:16,120 so just so we can see the whole prototype chain here 216 00:12:16,120 --> 00:12:17,053 in the console. 217 00:12:18,540 --> 00:12:21,110 So for that, we need that controller to run 218 00:12:22,100 --> 00:12:23,453 and so here it is. 219 00:12:25,180 --> 00:12:28,800 So you see that we have still some undefined data. 220 00:12:28,800 --> 00:12:30,890 Then we have the parentElement. 221 00:12:30,890 --> 00:12:32,233 So the one we selected. 222 00:12:33,330 --> 00:12:34,853 And then we get, 223 00:12:36,370 --> 00:12:38,610 well, right now, we don't have any methods 224 00:12:38,610 --> 00:12:40,170 in the class already 225 00:12:40,170 --> 00:12:43,110 but we do have methods in a parent class. 226 00:12:43,110 --> 00:12:44,443 And so these are the ones. 227 00:12:45,620 --> 00:12:49,530 Right, so the render one that we're gonna use next, 228 00:12:49,530 --> 00:12:52,063 then renderError and Spinner and Message. 229 00:12:53,010 --> 00:12:56,310 So it's always good to remember these things 230 00:12:57,550 --> 00:13:00,770 so that we still know how everything still actually works 231 00:13:00,770 --> 00:13:02,530 behind the scenes. 232 00:13:02,530 --> 00:13:03,833 But now it's actually time 233 00:13:03,833 --> 00:13:08,833 to create basically this generateMarkup method also 234 00:13:10,460 --> 00:13:13,100 in the resultsView, okay? 235 00:13:13,100 --> 00:13:16,480 So all the child views should have this method here 236 00:13:16,480 --> 00:13:20,300 because in the view, the render method then actually relies 237 00:13:20,300 --> 00:13:22,920 on that, okay? 238 00:13:22,920 --> 00:13:26,690 So this.generateMarkup needs to exist in order 239 00:13:26,690 --> 00:13:29,320 for the render method then being able 240 00:13:29,320 --> 00:13:32,810 to create the markup and render it 241 00:13:32,810 --> 00:13:35,623 or to insert that HTML into the DOM. 242 00:13:36,840 --> 00:13:40,480 And so let's take that, just that name 243 00:13:41,850 --> 00:13:43,663 and create that right here. 244 00:13:46,810 --> 00:13:49,260 So as always, a template literal 245 00:13:50,252 --> 00:13:53,910 and then now it's time to actually get this code here. 246 00:13:53,910 --> 00:13:54,743 Okay? 247 00:13:54,743 --> 00:13:57,380 And this here is called a preview 248 00:13:57,380 --> 00:14:00,600 because we will actually use the same thing later here 249 00:14:00,600 --> 00:14:02,053 to render the bookmarks. 250 00:14:03,220 --> 00:14:05,429 So that's gonna be a nice trick 251 00:14:05,429 --> 00:14:08,123 but we will save that for the future. 252 00:14:09,550 --> 00:14:11,090 Okay? 253 00:14:11,090 --> 00:14:13,680 Some more indentation here on all of this 254 00:14:14,910 --> 00:14:17,230 to make it look great. 255 00:14:17,230 --> 00:14:19,890 And so now we need to take our data 256 00:14:19,890 --> 00:14:23,380 and actually put that right here. 257 00:14:23,380 --> 00:14:27,300 Now, where actually is that search results data? 258 00:14:27,300 --> 00:14:29,000 So with all of the structure, 259 00:14:29,000 --> 00:14:31,040 it might be a little bit hard to follow 260 00:14:31,040 --> 00:14:32,573 where that data is. 261 00:14:33,450 --> 00:14:34,990 So let me actually start 262 00:14:34,990 --> 00:14:36,903 by calling the render method here. 263 00:14:38,860 --> 00:14:42,870 So here, besides of simply logging the search results, 264 00:14:42,870 --> 00:14:47,870 we now also want resultsView.render 265 00:14:48,370 --> 00:14:52,191 because of course, just like renderSpinner, 266 00:14:52,191 --> 00:14:55,060 the resultsView also inherits render 267 00:14:55,060 --> 00:14:58,763 and then into that, we pass whatever we want to be rendered. 268 00:15:00,130 --> 00:15:02,393 And so that is all of this. 269 00:15:04,320 --> 00:15:05,240 Okay? 270 00:15:05,240 --> 00:15:07,334 And then in the render, 271 00:15:07,334 --> 00:15:09,921 here we see that it takes this data 272 00:15:09,921 --> 00:15:12,254 and puts it into this._data. 273 00:15:13,100 --> 00:15:17,440 And so here, if we then take a look at the resultsView, 274 00:15:17,440 --> 00:15:19,970 let's simply log that then to the console. 275 00:15:19,970 --> 00:15:22,180 So this._data 276 00:15:23,330 --> 00:15:25,020 and so this_data here 277 00:15:25,020 --> 00:15:30,020 should basically be exactly this search.results. 278 00:15:31,490 --> 00:15:32,443 So let's see. 279 00:15:35,030 --> 00:15:36,990 And it is. 280 00:15:36,990 --> 00:15:40,820 So you see that twice we now get this array 281 00:15:40,820 --> 00:15:44,630 and you also see that it already printed something here 282 00:15:44,630 --> 00:15:46,490 to the results. 283 00:15:46,490 --> 00:15:49,543 So that is that pre-formatted HTML 284 00:15:49,543 --> 00:15:52,100 that we already created here. 285 00:15:52,100 --> 00:15:57,100 So it's already basically this HTML, right? 286 00:15:57,240 --> 00:16:00,650 Because this method here is already returning that 287 00:16:00,650 --> 00:16:03,926 and so then the view takes that data 288 00:16:03,926 --> 00:16:07,783 and renders it on the user interface. 289 00:16:09,018 --> 00:16:10,980 Okay? 290 00:16:10,980 --> 00:16:15,003 And so let's now actually create this method. 291 00:16:15,980 --> 00:16:18,940 Now, this is actually an array now 292 00:16:18,940 --> 00:16:22,140 and so here we need to loop over that array. 293 00:16:22,140 --> 00:16:26,650 So in fact, we don't want to return simply this 294 00:16:26,650 --> 00:16:29,130 but instead, we want to return a whole string, 295 00:16:29,130 --> 00:16:32,130 which contains like one of these elements 296 00:16:32,130 --> 00:16:35,853 for each of the search results in the array. 297 00:16:36,990 --> 00:16:40,740 So we will return basically this._data 298 00:16:41,800 --> 00:16:43,980 and then we map over it. 299 00:16:43,980 --> 00:16:47,460 Remember, so we did that before with the ingredients 300 00:16:47,460 --> 00:16:49,460 and then at the end, 301 00:16:49,460 --> 00:16:51,740 we join everything together 302 00:16:51,740 --> 00:16:53,840 and so then that will be the string 303 00:16:53,840 --> 00:16:55,023 that we return here. 304 00:16:56,310 --> 00:16:57,860 Now, we could now go ahead 305 00:16:57,860 --> 00:17:01,520 and put this code here into the map function 306 00:17:01,520 --> 00:17:05,010 but instead, I will create just another method down here 307 00:17:05,010 --> 00:17:07,360 to make this a little bit cleaner. 308 00:17:07,360 --> 00:17:08,673 Let me copy this name. 309 00:17:10,720 --> 00:17:11,553 Preview. 310 00:17:12,430 --> 00:17:14,180 And I'm simply calling it this 311 00:17:14,180 --> 00:17:16,143 because that's also the class name. 312 00:17:18,630 --> 00:17:20,483 So let's put this one here. 313 00:17:22,043 --> 00:17:25,013 And so then here we can call the method. 314 00:17:26,060 --> 00:17:27,960 Oh, what was that? 315 00:17:27,960 --> 00:17:30,270 So we can call it right here then. 316 00:17:31,750 --> 00:17:35,763 And so now this should like print 50 or 60 of the same. 317 00:17:37,560 --> 00:17:39,530 So just to see if it works. 318 00:17:39,530 --> 00:17:42,020 And indeed, here it is. 319 00:17:42,020 --> 00:17:43,310 So 59 results 320 00:17:43,310 --> 00:17:48,260 and so it prints this 59 times right here now. 321 00:17:48,260 --> 00:17:49,093 Right? 322 00:17:49,093 --> 00:17:51,880 Now, all we need to do is to fill it 323 00:17:51,880 --> 00:17:53,560 with the real data. 324 00:17:53,560 --> 00:17:58,453 So with the id, image, publisher and title. 325 00:18:00,230 --> 00:18:01,430 Okay? 326 00:18:01,430 --> 00:18:03,230 So to start, we need the ID here 327 00:18:03,230 --> 00:18:05,220 in order to build the link 328 00:18:05,220 --> 00:18:06,910 and so then we click the link, 329 00:18:06,910 --> 00:18:08,892 that will change the hash in the URL, 330 00:18:08,892 --> 00:18:12,313 which in turn, will trigger a loading a recipe. 331 00:18:14,180 --> 00:18:17,343 So that's what we did by the beginning of this section. 332 00:18:18,470 --> 00:18:21,103 Now, here we need to pass in the result then. 333 00:18:22,270 --> 00:18:26,313 And so here that is result.id. 334 00:18:29,200 --> 00:18:31,203 Then here it's the image, 335 00:18:34,190 --> 00:18:35,480 so .image. 336 00:18:35,480 --> 00:18:36,833 Here it's the title. 337 00:18:43,230 --> 00:18:45,743 And then here the publisher. 338 00:18:51,230 --> 00:18:52,063 Okay. 339 00:18:53,300 --> 00:18:56,450 Here we also need to replace the icons. 340 00:18:56,450 --> 00:19:00,563 So we will need again the icons right here. 341 00:19:02,630 --> 00:19:05,193 We will probably need them in all of them. 342 00:19:12,380 --> 00:19:13,943 But that should be it. 343 00:19:17,590 --> 00:19:18,773 And it works. 344 00:19:19,850 --> 00:19:21,330 Beautiful. 345 00:19:21,330 --> 00:19:24,160 So we get all of these search results here. 346 00:19:24,160 --> 00:19:27,100 We just have to fix some small details 347 00:19:27,100 --> 00:19:30,050 but you see that it's already working 348 00:19:30,050 --> 00:19:34,933 and now let's click on one of them and it works. 349 00:19:38,180 --> 00:19:39,660 Minimizing this a little bit 350 00:19:40,550 --> 00:19:43,260 and so you see, now we get exactly the recipe 351 00:19:43,260 --> 00:19:44,763 that we are clicking on here. 352 00:19:45,780 --> 00:19:47,530 So watch what happens with the ID 353 00:19:47,530 --> 00:19:50,560 when I click here on Pizza Casserole 354 00:19:50,560 --> 00:19:52,970 or Casserole or whatever. 355 00:19:52,970 --> 00:19:55,210 So it changed the ID up there 356 00:19:55,210 --> 00:19:58,860 and changed the recipe here also in the view. 357 00:19:58,860 --> 00:20:00,220 Great. 358 00:20:00,220 --> 00:20:03,310 And now let's just fix this icon here 359 00:20:03,310 --> 00:20:05,253 and actually, also here. 360 00:20:06,766 --> 00:20:09,840 And then also all of these should not be highlighted. 361 00:20:09,840 --> 00:20:12,123 We will take care of that a little bit later. 362 00:20:13,260 --> 00:20:16,003 So we need to take away this class here of active. 363 00:20:17,120 --> 00:20:20,763 And here we also need to take away this. 364 00:20:22,700 --> 00:20:23,533 Okay? 365 00:20:23,533 --> 00:20:26,320 And we will come back to this later again 366 00:20:26,320 --> 00:20:27,300 when we actually start 367 00:20:27,300 --> 00:20:30,133 to implement uploading our own recipes. 368 00:20:31,340 --> 00:20:32,670 And here in the alt text, 369 00:20:32,670 --> 00:20:35,883 we should just put that title as well. 370 00:20:37,298 --> 00:20:38,131 Okay? 371 00:20:39,043 --> 00:20:41,880 Now you see that actually the states 372 00:20:41,880 --> 00:20:44,690 that we had here before in the page is gone 373 00:20:44,690 --> 00:20:48,640 and so let's activate that hot module reloading 374 00:20:48,640 --> 00:20:52,573 that I mentioned in the last section. 375 00:20:53,570 --> 00:20:57,030 So remember that with parcel, we can do this. 376 00:20:57,030 --> 00:21:00,523 So if module.hot, 377 00:21:02,710 --> 00:21:07,223 then module.hot.accept. 378 00:21:08,300 --> 00:21:09,230 All right? 379 00:21:09,230 --> 00:21:12,390 And again, this is not real JavaScript, 380 00:21:12,390 --> 00:21:14,430 at least this module.hot. 381 00:21:14,430 --> 00:21:16,463 This is simply coming from parcel. 382 00:21:17,790 --> 00:21:18,850 All right? 383 00:21:18,850 --> 00:21:22,880 And now finally, let's also delete these fakes links 384 00:21:22,880 --> 00:21:23,993 that we had before. 385 00:21:28,560 --> 00:21:29,623 Let's reload. 386 00:21:32,780 --> 00:21:34,453 And that looks a lot better. 387 00:21:36,480 --> 00:21:37,540 Okay? 388 00:21:37,540 --> 00:21:39,863 So let me now change something in the code. 389 00:21:42,640 --> 00:21:46,270 For example, getting rid of this console.log here. 390 00:21:46,270 --> 00:21:49,570 And so previously, that would then reload the entire page 391 00:21:50,530 --> 00:21:52,670 but now, as we go back, 392 00:21:52,670 --> 00:21:56,490 you see that the state here actually remains. 393 00:21:56,490 --> 00:21:57,410 All right? 394 00:21:57,410 --> 00:22:01,053 All it says is the console was cleared but that's it. 395 00:22:02,090 --> 00:22:04,020 So the rest remains the same 396 00:22:04,020 --> 00:22:07,980 and we can now also delete this user icon 397 00:22:07,980 --> 00:22:10,563 from the recipeView. 398 00:22:12,040 --> 00:22:15,973 So let's see where that is. 399 00:22:16,860 --> 00:22:18,643 It is simply this div here. 400 00:22:21,050 --> 00:22:25,023 And so once again, it will now not re-render everything. 401 00:22:26,240 --> 00:22:28,663 Well, maybe we should re-render. 402 00:22:31,180 --> 00:22:33,740 And yeah, now it's gone. 403 00:22:33,740 --> 00:22:38,113 Well, it also messed up our button here for some reason. 404 00:22:39,390 --> 00:22:41,850 So maybe that was not intended. 405 00:22:41,850 --> 00:22:44,973 Maybe I should just remove this here. 406 00:22:46,110 --> 00:22:48,723 So basically keeping an empty div. 407 00:22:53,260 --> 00:22:55,270 Okay, so for the time being, 408 00:22:55,270 --> 00:22:57,063 let's just leave it like this. 409 00:22:58,590 --> 00:22:59,480 Okay. 410 00:22:59,480 --> 00:23:02,530 Now, let's just see what happens when we search something 411 00:23:02,530 --> 00:23:04,513 that for sure does not exist. 412 00:23:06,060 --> 00:23:09,823 So you see that here we still get a success. 413 00:23:11,680 --> 00:23:13,134 You see. 414 00:23:13,134 --> 00:23:16,034 So we still get that data but the only difference 415 00:23:16,034 --> 00:23:19,201 is that the recipes array is now empty 416 00:23:20,177 --> 00:23:22,880 and here we also see that the array is empty coming 417 00:23:22,880 --> 00:23:24,620 from the state. 418 00:23:24,620 --> 00:23:26,760 So in this case, we actually want 419 00:23:26,760 --> 00:23:30,110 to render like an error message here saying 420 00:23:30,110 --> 00:23:32,803 that there was no result for that query. 421 00:23:33,660 --> 00:23:36,500 So let's start by creating also 422 00:23:36,500 --> 00:23:38,513 the errorMessage property here. 423 00:23:40,470 --> 00:23:43,733 So let's copy these two actually to our resultsView. 424 00:23:49,970 --> 00:23:54,970 And here let's say no recipes found for your query! 425 00:24:01,040 --> 00:24:02,423 Please try again. 426 00:24:03,670 --> 00:24:05,380 But now, how exactly 427 00:24:05,380 --> 00:24:08,260 will we actually display this errorMessage 428 00:24:08,260 --> 00:24:10,700 on the parentElement? 429 00:24:11,850 --> 00:24:14,250 So we could do that right here in generateMarkup 430 00:24:15,160 --> 00:24:17,810 and basically check if the array is empty 431 00:24:17,810 --> 00:24:19,293 and if it is so, 432 00:24:19,293 --> 00:24:21,610 then render the errorMessage. 433 00:24:21,610 --> 00:24:23,100 So that would work. 434 00:24:23,100 --> 00:24:25,540 However, we can also do that directly 435 00:24:25,540 --> 00:24:27,310 in the render method. 436 00:24:27,310 --> 00:24:30,543 So automatically, right as we receive the data. 437 00:24:31,770 --> 00:24:34,930 And I believe that is what makes more sense. 438 00:24:34,930 --> 00:24:36,460 So right in the beginning 439 00:24:36,460 --> 00:24:39,020 when the render method is first called 440 00:24:39,020 --> 00:24:41,460 and receives the data for the first time, 441 00:24:41,460 --> 00:24:45,660 we can immediately check if that data actually exists. 442 00:24:45,660 --> 00:24:48,210 So right now, we only simply assumed 443 00:24:48,210 --> 00:24:49,940 that there always is data 444 00:24:49,940 --> 00:24:53,820 and that we can then generate some markup with that data. 445 00:24:53,820 --> 00:24:55,920 But as always, it's a good idea 446 00:24:55,920 --> 00:24:58,930 to check if the data actually exists. 447 00:24:58,930 --> 00:25:02,740 And that is true no matter if we receive a simple object 448 00:25:02,740 --> 00:25:06,100 or if we receive an entire array of objects, 449 00:25:06,100 --> 00:25:09,300 which is the case of the results. 450 00:25:09,300 --> 00:25:11,980 So let's add a guard clause here. 451 00:25:11,980 --> 00:25:14,450 So if there is no data, 452 00:25:14,450 --> 00:25:16,940 then we want to return immediately 453 00:25:16,940 --> 00:25:20,090 and we also want to render the error. 454 00:25:20,090 --> 00:25:22,090 So we can do that all in one line 455 00:25:22,090 --> 00:25:24,440 and this will then still work. 456 00:25:24,440 --> 00:25:26,200 So this.renderError 457 00:25:28,330 --> 00:25:32,360 and we actually don't even have to pass in any message 458 00:25:32,360 --> 00:25:35,090 because we already automatically get the message 459 00:25:35,090 --> 00:25:38,444 from this._errorMessage. 460 00:25:38,444 --> 00:25:41,500 And so in this case, that is going to be this one 461 00:25:41,500 --> 00:25:43,223 that we just specified before. 462 00:25:44,220 --> 00:25:45,560 Right? 463 00:25:45,560 --> 00:25:47,540 Now, however, in this case, 464 00:25:47,540 --> 00:25:49,600 this check is actually not enough 465 00:25:49,600 --> 00:25:52,360 because in fact, we do get data. 466 00:25:52,360 --> 00:25:54,420 It's just an empty array 467 00:25:54,420 --> 00:25:55,430 and so in this case, 468 00:25:55,430 --> 00:25:58,170 we also want to treat the empty array 469 00:25:58,170 --> 00:26:00,340 as though we had no data. 470 00:26:00,340 --> 00:26:03,530 So this here basically only works for undefined 471 00:26:03,530 --> 00:26:05,152 or for null. 472 00:26:05,152 --> 00:26:08,840 But now we also want to check if the received data 473 00:26:08,840 --> 00:26:11,920 is an array and if it is empty. 474 00:26:11,920 --> 00:26:13,570 So we can do that by saying 475 00:26:14,760 --> 00:26:17,340 so if there is no data or 476 00:26:17,340 --> 00:26:20,540 and then basically, if the data is an array 477 00:26:20,540 --> 00:26:22,400 and if it's empty. 478 00:26:22,400 --> 00:26:23,650 And we can do that 479 00:26:23,650 --> 00:26:25,110 by using a helper function 480 00:26:25,110 --> 00:26:27,470 that is on the Array constructor, 481 00:26:27,470 --> 00:26:28,900 which is isArray. 482 00:26:30,580 --> 00:26:31,763 So we can check that. 483 00:26:33,170 --> 00:26:34,790 And so if it's an array 484 00:26:34,790 --> 00:26:39,530 and the length of the array is zero basically, 485 00:26:39,530 --> 00:26:44,530 data.length zero, 486 00:26:44,780 --> 00:26:46,143 well, then in this case, 487 00:26:46,143 --> 00:26:49,200 exit this function immediately 488 00:26:49,200 --> 00:26:52,840 and also render the error, okay? 489 00:26:52,840 --> 00:26:55,680 So again, if there is no data 490 00:26:55,680 --> 00:26:57,640 or if there is data, 491 00:26:57,640 --> 00:26:59,860 but that data is an array, 492 00:26:59,860 --> 00:27:02,040 and it is empty. 493 00:27:02,040 --> 00:27:05,863 So in both these cases, we want the error to be shown. 494 00:27:07,020 --> 00:27:08,353 So let's check that. 495 00:27:11,990 --> 00:27:14,270 So with pizza, it all works the same 496 00:27:14,270 --> 00:27:16,610 because there are results. 497 00:27:16,610 --> 00:27:20,120 But now with this, ha, there are no results 498 00:27:20,120 --> 00:27:23,200 and then we get our error message. 499 00:27:23,200 --> 00:27:25,000 So great. 500 00:27:25,000 --> 00:27:26,200 That works. 501 00:27:26,200 --> 00:27:29,433 And so I think we are done actually with this part. 502 00:27:30,510 --> 00:27:33,023 So just one more look at our flowchart. 503 00:27:34,005 --> 00:27:37,260 So we implemented the event 504 00:27:37,260 --> 00:27:38,950 that the user searches. 505 00:27:38,950 --> 00:27:42,500 We asynchronously loaded the search results 506 00:27:42,500 --> 00:27:47,082 and then we also rendered them to our user interface. 507 00:27:47,082 --> 00:27:51,444 And so with that, we are done. 508 00:27:51,444 --> 00:27:52,950 Right? 509 00:27:52,950 --> 00:27:55,290 Just a final look here at the controller 510 00:27:55,290 --> 00:27:56,803 that everything looks good. 511 00:27:58,160 --> 00:28:01,010 So in the next lecture, we will actually take care 512 00:28:01,010 --> 00:28:04,670 of the problem that we have these 59 results, 513 00:28:04,670 --> 00:28:06,903 all one after another here. 514 00:28:07,780 --> 00:28:09,310 So that's not good 515 00:28:09,310 --> 00:28:11,460 and so we will implement pagination 516 00:28:11,460 --> 00:28:13,243 in the next two lectures.