Gem File and Rails Server

Quick reference

• 00:04 And now it's time to actually open up our project and take a look at it.
• 00:08 So head back over to sublime.
• 00:10 And like we said you just go to your Windows Start menu, type in
• 00:14 Sublime, this thing will pop up.
• 00:15 And we want to come down here to Project, and then we want to Add Folder to Project.
• 00:22 And now, we just want to navigate to our C directory.
• 00:26 and then look for that pinteresting directory that we created a couple of
• 00:30 videos ago when we installed it.
• 00:33 And you don't want to actually double click it, you just want to click it once
• 00:37 to highlight it, and then click this Select Folder button.
• 00:40 And boom, boom, boom, all of the files in our project appear, very cool.
• 00:46 And now this is where we're going to be working pretty much for
• 00:49 the rest of the course, in this text editor.
• 00:51 And I'm going to go through here and
• 00:52 explain all these things a couple of videos from now.
• 00:55 For now we just want to click this GemFile button.
• 00:59 And this is a GemFile, I'll explain what this is later on.
• 01:02 But right now we need to fix that error that we got earlier.
• 01:06 And so we scroll down here and find this reference to the sqlite3 gem.
• 01:11 Remember, when we looked at that website, it said, I'll pull it back up.
• 01:15 It said that we need to change that reference to this.
• 01:18 So I just highlight here and click Copy, and then head back over here and
• 01:22 underneath here, I'm just going to right-click and click Paste.
• 01:26 And so you can see the difference between this,
• 01:28 we're just designating an earlier version.
• 01:31 So I can come up here and just delete this.
• 01:33 Now, hit Ctrl+S on your keyboard Cmd+S if you're on a Mac,
• 01:36 or you can come up here and click File > Save.
• 01:38 Finally, there's one more step it says, we need to run this bundle install command.
• 01:44 So I can copy this and head back to our terminal.
• 01:47 Make sure we're in this c/pinteresting directory.
• 01:51 We want to be in this directory from now on.
• 01:54 Any time we enter a command into the terminal, we'll do it in this directory.
• 01:58 So I could just right-click and click Paste, bundle install.
• 02:01 And any time we add a new gem,
• 02:03 we always have to install it by typing the bundle install command.
• 02:06 I'm kind of getting ahead of ourselves here.
• 02:08 But we'll get into all this much later.
• 02:10 But for now, this is just how we fix that error that we got when we installed
• 02:14 Rails And we should be good to go.
• 02:18 So we get this little thing, a warning message.
• 02:22 You get those sometimes when you bundle install, we can ignore this one.
• 02:26 And so I'm just going to go ahead and clear the screen and we're done.
• 02:28 We have successfully installed Ruby on Rails, but
• 02:32 we have all of our code here, I'm going to go ahead and close these files here.
• 02:37 Like I said, I'll get into all of this later.
• 02:39 There's one last thing we can do to sort of test to make sure that
• 02:43 our project was installed correctly, and that's to run the rails server.
• 02:48 So head back over to our terminal here, and just type in rails server, or
• 02:53 you can just type in rails s, rails is big on abbreviating commands, so
• 02:57 let's go ahead and rails s.
• 02:59 And what this will do is this will fire up Ruby on Rails internal web server.
• 03:03 So we can actually look at our project that we just created in a web browser, and
• 03:08 it's the Puma web server, we don't care about that.
• 03:11 We just need to make sure that it's running and
• 03:15 you can see down here it says localhost:3000.
• 03:19 Highlight this and copy it and then pull back our web browser and
• 03:23 just paste that in.
• 03:26 And if everything went according to plan,
• 03:29 you should get this cool little Rails welcome page.
• 03:32 And this is just the default Rails page that lets us know that our project was
• 03:36 installed correctly, everything is working, and it's very cool.
• 03:39 We'll go ahead and change this page later on to our own web page,
• 03:43 whatever we want to build.
• 03:45 But for now we just want to see that it was installed correctly if
• 03:48 you get this little picture on here.
• 03:49 It means it worked, everything worked fine.
• 03:52 The error message that we fixed has in fact been fixed.
• 03:55 And everything is good to go.
• 03:57 Now, I should mention, anytime you want to run your app,
• 04:01 you have to type this rails s command.
• 04:03 And some people just keep this running, this Git Bash terminal running all
• 04:08 the time, and then just open up a second one in order to type in commands.
• 04:12 because we're going to be typing in a lot of commands into the Rails terminal.
• 04:15 And it's kind of a hassle to hit Ctrl+C to break out of this,
• 04:19 type in your command and
• 04:20 then run the rails server again anytime you want to take a look at your website.
• 04:25 Because if it hasn't been running, if it's not running, you hit reload.
• 04:30 Well, it is running now.
• 04:31 If I hit Ctrl+C break out of it, and then hit reload here.
• 04:36 We're going to get an error that says, this site can't be reached.
• 04:38 That's just because the web server has stopped.
• 04:40 So personally I just run the Rails server always and then I'll go ahead and
• 04:44 just go to my Windows start menu and create another instance of
• 04:48 the Git Bash terminal and just type my commands into that.
• 04:51 You just want to make sure that when you do that you're
• 04:54 in the c/pinteresting directory.
• 04:56 And you just do that by typing in cd, and then that c/pinteresting directory and
• 05:00 you should be good to go.
• 05:02 We are now ready, we're actually ready to create our project and
• 05:05 actually start coding and doing all the fun things.
• 05:09 It's kind of a hassle to install Ruby on Rails but I don't think it was too bad.
• 05:13 Once you've done it once, you can do it again very easily.
• 05:15 You don't have to install rails every time you create a new project.
• 05:19 You just use that rails new command and spin up a new project, so
• 05:23 the hard part is all over.
• 05:25 In the next video want to spend a few minutes talking about the MVC concept.
• 05:30 It stands for Model View Controller, Rails is a model view controller platform.
• 05:35 And so I'll spend a couple of minutes talking about that.
• 05:36 From now on I'm going to be using a different development tool in the videos.
• 05:40 I'm going to be using something called Cloud9, C9, and it's a cloud development
• 05:45 tool that has the text editor, the terminal and the server all in one screen.
• 05:49 You guys should follow along and use the tools that we just setup and installed.
• 05:53 Actually Amazon bought this company Cloud9 couple of years ago and
• 05:57 they've since closed it down.
• 05:58 So it's not available for use to the public, so
• 06:00 you going to have to use the tools that we just downloaded and installed.
• 06:03 So that will be starting in the next video.

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