deploy ruby on rails app

According to "Ruby on Rails" and I learned the route map, we know that can be accessed GET /posts/ :id (. :format ) to display specific objects.1. Modify the actionModify the APP/CONTROLLERS/POSTS_CONTROLLER.RB show this action. Here's a puzzle, what if I get the parameters inside the URL?can be accessed via the params built-in variable! As follows: def show

presentation layer is rendered by the browser The logical layer manipulates the data from the server side and goes to the presentation layer The data layer is responsible for storing the data. 6-tier architectureIf you divide it further, you get a 6-tier architecture, such as The presentation layer is divided into the client layer and the presentation logic layer The client layer is responsible for rendering the display page Indicates that the logical layer generat

The presentation layer is rendered by the browser The logical layer manipulates the data from the server side and goes to the presentation layer The data layer is responsible for storing the data. 6-tier architectureAssuming a further cut, you get a 6-tier architecture, such as The presentation layer is divided into the client layer and the presentation logic layer The client layer is responsible for rendering the display page Indicates that the logical layer g

This article is not an article about NodeJS and Ruby on Rails. It only describes the reasons behind the thinking and decision-making in our decision-making process. The two frameworks are both excellent and both of them are well designed. This is why some of our modules are still running on NodeJS. I am a big fan of NodeJs. I think this is a very exciting technology and I believe it will become more and mor

Statement: This article is not an article about nodejs and Ruby on Rails. It only describes the reasons behind the thinking and decision-making in our decision-making process. The two frameworks are both excellent and both of them are well designed. This is why some of our modules are still running on nodejs. I am a big fan of nodejs. I think this is a very exciting technology and I believe it will become m

Label: Queried the experience of the great God Http://stackoverflow.com/questions/19078044/disable-activerecord-for-rails-4 Http://stackoverflow.com/questions/821251/how-to-configure-ruby-on-rails-with-no-database The one I liked the most was the way I used it. If you is creating a new application, you can use-O to skip activerecord:rails new My_app-O for existin

" Converting images Perhaps one of your most common jobs is to convert images into different formats. Minimagick can simplify this process: Image.format "PNG" image.write "Public/uploads/test.png" You can also put multiple operations in the same module: Image.combine_options do |i| I.resize "2048x1536" i.flip i.rotate " -45" I.blur " 0x15" end image.write "public/uploads/" Blur.png " ![ Some Weird result] (blur.png) So let's take a look at how to relat

Ruby on Rails directory structure + app/#控制器, model, view, help method, mail, static resource + bin/#rails脚本 + config/#路由, database + db/ #数据库模式, migration file + lib/ # Expansion Module + log/ #日志 + public/#公共资源 + test/ #单元测试 -config.ru #Rack服务器的程序设置, for starting programs - Gemfile,gemfile.lock #指定Gem依赖, fo

1, Purpose: Use Heroku to deploy the development environment to the production environment. Heroku is dedicated to deploying rails and other Web applications, and the process of deploying rails applications is straightforward-as long as the source code is incorporated into the GIT version control system.2. Build Heroku Deployment Environment(1) Heroku use Postgre

Using form to create data, this section will cover the content: Create form, redirect user, render views and flash messages.1. Views PreliminaryEdit App/views/posts/index.html.erb This view file as follows:New_post is the new action's prefix, referring to [Ruby on Rails] and I learned the route map, but after it added the _path suffix.Then edit the

specification. Parameters injected by an object are accessed by a file name, for example, _ myname. rhtml gets the myname parameter. to append other parameters, use: locals = {...} If ignore: the object parameter indicates that @ xxx is automatically passed into the xxx variable in _ XXX. rhtml, that is, when the variable names in @ instance and partial are the same, the object parameter can be omitted:Use the partial of the Set You can use render (: Partial => "XXX",: Collection => XXX) to

The previous "[Ruby on Rails] and I learned hello World" mentioned that the route corresponding to the file is CONFIG/ROUTES.RBIn fact, we just added a line of code: Resources:p OSTsHowever, this code has multiple default routes, which can be viewed through rake routes, as follows:[Email protected]:/home/ywt/ror_tests/blog# rake routes Prefix Verb URI Pattern controller#action Posts ge

1. The microblog model is as follows:2, the creation of Weibo resources, the command is as follows:$ rails Generate scaffold micropost content:text User_id:integer #生成微博资源$ bundle EXEC Rake db:migrate #执行迁移, update the database, use the new data model3, the content of micro-blog restrictions(1) Limit the length of WeiboIn the APP/MODELS/MICROPOST.RBclass Micropost activerecord::base validates:content, lengt

rewrite_modulemodules/mod_rewrite.so annotation. 2.0 previous versions were said to be modified in 2 places: LoadModule rewrite_module libexec/httpd/mod_rewrite.so and addmodule mod_rewrite.c Add Model: /app/models/post.php Code: ?PhpRequire_once('cake/app_model.php');ClassPostExtendsAppmodel {Public$name='Post';Public$validate=Array('Title' => valid_not_empty , } IMG src= "yun_qi_img/20081022215650208.gif" alt= "Capture cake (

Refer to Http://guides.rubyonrails.org/action_mailer_basics.html In the security of your Gmail account, start with two-step verification (Link: https://myaccount.google.com/security) to generate an application-specific password, which you need to use later. Enter the root of the rails project under the console and execute rails generate mailer Usermailer Locate the

Modify viewsModify the index view (app/views/posts/index.html.erb) and add the edit link as follows:That is, add the following logic: Among them, Edit_post_path, is the previous "[Ruby on Rails] and I learned route map" referred to the edit action prefix added a shortcut after the _path suffix, can accept parameters, here accept the post instance object.Then edi

First, the new projectRails new App--skip-bundleModify Gemfile file after completion: Vim GemfileChange source to Taobao or Ruby-china.Add to this file: Gem ' Phantomjs 'Then run: Bundle installSo the project is new and completed.Second, generate PDFCreate a controller to add require ' PHANTOMJS ' to the head and add a get method for getting the PDF: get_pdfAdd the following code to this method:Phantomjs.ba

Here simply add a few validations, non-empty, minimum length, uniqueModifying a modelModify the App/models/post.rb file as follows:Class Post At this time to run the service, modify/New model, when nothing is filled, can not be submitted, nor error.What's the reason?Because you didn't show the error message.Modify viewsModify the App/views/posts/new.html.erb file as follows:That is, addFor

Ruby on Rails internationalization, rubyrails Language-related settings and strings should not be used in views, models, and controllers. The text should be moved to the language file under config/locales. When the tags of the ActiveRecord model need to be translated, the scope of activerecord is used: en: activerecord: models: user: Member attributes: user: name: "Full name" Then User. model_name.

Some Suggestions on Ruby on Rails routing configuration, rubyrails When you need to add one or more actions to a RESTful Resource (do you really need it ?), Use member and collection routes. # Differential get 'subscriptions/: id/unsubscribe 'resources: subscriptions # Good resources: subscriptions do get 'unsubscribe', on: member end # differential get 'photos/search' resources: photos # Good resources: ph