词汇：rail

n. 横杆；扶手；围栏；铁轨

相关场景

POTTER (sarcastically) Look at you. You used to be so cocky! You were going to go out and conquer the world! You once called me a warped, frustrated old man. What are you but a warped, frustrated young man? A miserable little clerk crawling in here on your hands and knees and begging for help. No securities �� no stocks �� no bonds �� nothing but a miserable little five hundred dollar equity in a life insurance policy. You're worth more dead than alive. Why don't you go to the riff-raff you love so much and ask them to let you have eight thousand dollar? You know why? Because they'd run you out of town on a rail . . .But I'll tell you what I'm going to do for you, George. Since the state examiner is still here, as a stockholder of the Building and Loan, I'm going to swear out a warrant for your arrest.
>> It's a Wonderful Life Movie Script
They race towards the slender bridge of stone...without kerb or rail...at the far end of the hall. The Fellowship recklessly hurry over the dizzying bridge..but Gandalf... the last..pauses in the middle of the span...he faces the Balrog...staff in one hand...Sword in the other! Frodo looks
>> 指环王1：护戒使者 The Lord of the Rings: The Fellowship of the Ring Movie Script
So that is a very quick tour of Rails, this is a wonderful way of getting started,just to use those scaffold generators and the authentication generators to get something going, get a Hello world out there, start working on your application, and before you know it, you might just be taking your application all the way from Hello World to IPO.
>> Rails 8.0.1 You are in good company
这是Rails的快速浏览，这是一种很好的入门方式，只需使用这些脚手架生成器和身份验证生成器即可开始工作，创建一个Hello world，开始开发你的应用程序，不知不觉中，你可能会把你的应用程序从Hello world一直带到IPO。
We're not gonna change that for this little example, but now let's check in that PWA files, and then let's deploy to production one more time. and as you can see, look in the top right corner, when I reload it, we now have that little install icon in Chrome. and if I click that little install icon, I'm gonna get this prompt, and boom! I have a PWA running in production for my Rails application.
>> Rails 8.0.1 You are in good company
So, be careful when you create things, that are gonna be created on the server side in your real database.The database, by the way? we haven't talked much about that, and that is because we're using SQLite. So, there is nothing to configure,there's nothing to set up, SQLite is now a suitable database for production with Rails. we have tuned it with all the right pragmas,to run SQLite well in production, you of course still need to set up a way to back that up, but everything else is preconfigured for you.
>> Rails 8.0.1 You are in good company
So that's just gonna be my email address and 123 password!We hop back into our CLI, and run rails db:seed, that's gonna run that file , I just showed you and set things up.
>> Rails 8.0.1 You are in good company
If we hop to the session, you can see it just is very basic Rails active record. Now we're gonna set up a default user that the systems should have as we're working with it to allow us to log in since we don't have that signup flow.
>> Rails 8.0.1 You are in good company
But as you can see here, it adds a handful of migrations, one for users, and one for sessions! So, we're gonna run rails db:migrate again!
>> Rails 8.0.1 You are in good company
rails g authentication:
Now, let's add authentication to things as well. Authentication is one of the newer feature in Rails, it basically gives you a default setup for tracking sessions, tracking passwords, and even doing password resets.
>> Rails 8.0.1 You are in good company
And that's basically the rhythm you will be in when you're working on a Rails and application and you're deploying to production.
>> Rails 8.0.1 You are in good company
There was a 404 here! That's because if we go back to out route file, I have not defined route! And in production, you're not gonna get that screen we saw with the Rails version and the Ruby version, that is only for development.
>> Rails 8.0.1 You are in good company
And that'll connect to the remote server, and it'll install Docker if it's missing,it'll build the Docker file or Docker container off the Docker file that Rails ship with by default, there's nothing you need to set up there.
>> Rails 8.0.1 You are in good company
这将连接到远程服务器，如果缺少Docker，它将安装Docker，它会根据Rails默认附带的Docker文件构建Docker文件或Docker容器，你不需要在那里设置任何东西。
I'm pulling it out of ENV with my Kamal registry password that I've already set up on my personal bash. And then, the Rails master key that does the decoding of any credentials we've set for Rails, it's just using a cat straight out of config master key.
>> Rails 8.0.1 You are in good company
Now, let's set things up to be dynamic, such that when we add a new comment to one of these, it's going to update the other as well. This is how we use web sockets in Rails using action cable, one of the frameworks that we have to create updates that are distributed automatically without folks having to reload their browser.
>> Rails 8.0.1 You are in good company
16:03:
Now, we're also gonna add a number of partials here. This is the templating system, basically, a sub-routine that you can refer to. There's gonna be three of them that includes the entire comment section. We're gonna reference that in our post show in just a second. And within that, we're gonna refer to another partial for an individual comment, and another partial again for the new setup. So, let's paste some of that in here, You can see this for the entire collection, it just has an H2 for the comments, and we render the post comments. This again uses Rails' convention over the configuration approach.
>> Rails 8.0.1 You are in good company
And then, Rails by default also adds two timestamps that it keeps track of by itself, created at and updated at. And below that, you had the post that we added originally.
>> Rails 8.0.1 You are in good company
rails g resource comment post:reference content:text
>> Rails 8.0.1 You are in good company
Now again, if you don't want any of this stuff, there is a way using JS bundler dash Rails to set things up in a more traditional way using ES build and what have you. But this is a wonderful way of developing modern web application.
>> Rails 8.0.1 You are in good company
If you look at something like hey.com, you'll see this technique in use on a major application, and you can view all of the Javascript that we use to build that application, and that's the default for Rails.
>> Rails 8.0.1 You are in good company
inspector:
But really, what's unique here for Rails is the fact that we're using no build by default! So if I go over here in the inspector and look at the JavaScript files that are included,you can see we have the application js file with a little digest stamp on there. If we change anything that application js file, the digest is going to change, and the browser will redownload just the part!
>> Rails 8.0.1 You are in good company
But now that we've add that, let's have a look at our application JS file.That's the default setup that you have that the scaffold is going to use. And as you can see, we're using turbo-rails, we're including all the stimulus controllers, if we have any.
>> Rails 8.0.1 You are in good company
digesting:
You don't need anything beyond what Rails ship you with already, because Rails 8 is all no build by default! That means there's not a transpiler, that means there's not a bundler, these files are shipped directly to the browser over HTTP2, so it's nice and fast. And the import map is what allows us to refer to these files by their logical names while still doing far future digesting, so that they load really quick,and such that they're easily compatible with CDNs and all that good stuff.
>> Rails 8.0.1 You are in good company
除了Rails已经提供的内容之外，你不需要任何东西，因为Rails 8默认情况下都是无构建的！这意味着没有转译器，也就是说没有打包器，这些文件通过HTTP2直接发送到浏览器，所以它既好又快。导入映射允许我们通过这些文件的逻辑名称引用它们，同时仍在进行未来的消化，这样它们加载得非常快，并且很容易与CDN和所有好东西兼容。
Now, let's add a bit of custom JavaScript. Rails by default ships with Hotwire! Hotwire gives you Turbo, which is a way of accelerating page changes and updates is that your application will feel as fast and as smooth as a single page application without you basically having to write any JavaScript at all.
>> Rails 8.0.1 You are in good company
Active Storage is a way to deal with attachments and other files in your Rails application. When you run it through action_text:install, it'll automatically set up those active storage tables that we need, there is one for blob,and then we have one for text here.We run migrations to set that up again, and now that we've run action_text:install, it also added a couple of gems, so we need to restart our development server. I do that just by exiting out and just running the server again!
>> Rails 8.0.1 You are in good company
Now, let's install something else here, let's install action_text, that is one of the frameworks that's part of Rails, but it's not set up by default, but you can set it up by running rails action_text:install, that's going to give you a WYSIWYG editor. That's currently powered by Trix! The open source, what you see is what you get editor made in JavaScript! And it also sets up active storage!
>> Rails 8.0.1 You are in good company