ruby on rails marketplace

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

Document reprinted by Fire Site Building InstituteTo install the oracle driver using gem in ruby on rails, see the original article: Reference content is as follows:[1] viewing locally installed plug-insGem list orGem list -- local[2] viewing remote available plug-insGem list -- romote[3] viewing oracle driversGem list -- remote | grep oracleThe result is as follows:Activerecord-oracle_enhanced

At this point, the implementation of this shopping cart is complete. Now we can use Rdoc in ruby to generate documents for our program, just like dotnet, java, and python, rdoc can extract the comments before class and method declaration in our code to generate a document. For our depot program, run the rake appdoc command in the rails command line, After that, you can view the generated d

Ruby on Rails (ROR) is equivalent to structs + spring + hibernate, but it is much more convenient, and there is almost no need to write configuration files, the development speed is also much faster (ROR is a 10 times faster than Java, and I don't think this number will be exaggerated ), ror's combination of Ajax technology makes developers feel very easy to develop (more convenient than DWR (Direct Web rem

Label: I/O, AR, SP on C file BSThis problem found during development todayThe per function of kaminari cannot be used in any configuration, and the page size is fixed at 30.At first, I thought it was the gem of ransack. I searched the internet for a long time and found that noFinally, check carefully. It turns out that the gemfile contains will_pagination. After you delete it, everything will return to normal.After you use kaminari in Ruby on

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

Explain how to use mailer in Ruby on Rails, railsmailer Name mails SomethingMailer. Without the Mailer root, you cannot immediately see which is a Mailer and which view is related to it.Provides HTML and plain text view templates. An error occurred while sending emails in your development environment. These errors are disabled by default. # config/environments/development.rb config.action_mailer.raise_deli

Online information There are many, but a lot of pits, some have expired, and some do not conform to the current arrangement of some seemingly also with the OS system version has a relationship, do not copy, according to the actual situation to installMy system version is 10.12.31. Install XcodePlease follow the process installation, here does not elaborate2 HomebrewOfficial website: http://brew.sh/index_zh-cn.html Best FQ under, otherwise have to wait for a long time3.RVMCurl-l Https://get.rvm.i

In the previous section, we demonstrated how to build a list of items, and this time we built a simple shopping cart based on the previous content. 1. First we want to create a table that holds customer shopping information: Database scripts: drop table if exists line_items; CREATE TABLE Line_items ( ID int not NULL auto_increment, product_id int not null, quantity int NOT null DEFAU Lt 0, unit_price decimal (10,2) NOT NULL, constraint fk_items_product foreign key (product_id) references Pro

The last Test Modeul problem has not been resolved, but the following to continue, this time to test controller. 1. In the test\functional directory, rails has generated a corresponding test file for our controller, and note that Application_controller does not generate test files. Let's take control of the login Logincontroller as an example, open the LOGIN_CONTROLLER_TEST.RB, which reads as follows: Require File.dirname (__file__) + '/... /test_h

The most frequently run query on a database is to return a conforming result set based on a specified condition, and the query may be to return all the names ' Dave's order, or all the titles on a blog with rails, in many other frameworks and programming languages, you need to create SQL to execute queries, and Active record takes advantage of the dynamic capabilities that the Ruby language contains. For e

Because in some cases you want to use a nonexistent column, or you want to create a new virtual modelYou can create a new tableless.rb under concerns under models, with the following code:Module tablelessdef self.included (Base)Base.extend (Classmethods)Base.send (: Include,instancemethods)EndModule Instancemethodsdef save (Validate = True)Validate? Valid? : TrueEndEndModule Classmethodsdef column (name, Sql_type = nil, default = nil, NULL = TRUE)Columns sql_type.to_s, NULL)Enddef columns@column

In Ruby on Rails(http://www.maiziedu.com/course/ruby-px/) , many rails Programmers often forget to consider performance issues, which can lead to slow website speeds, a spike in memory usage,and frequent reboots ofApache , so you'll need to optimize rails performance. The s

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 @post = Post.find (Params[:id]) end2. Modify

inheriting the virtual class, and then connect different databases. This is achieved by distributing the models to a different database. In this project, there are two abstract Class model corresponding to the application database, and the log library respectively. These two abstract Class model are: Ruby Code -Speciesschemamodel -Loggingmodel and their corresponding databases can be found in the definition of DATABASE.YML, respectively Java co

Redis Store is a toolkit designed for Ruby applications that supports fragmentation, master-slave copying, marshalling, and timeouts and namespaces. In addition, it is also very easy to use on the Ruby on Rails.How to use:for using the Redis Store on rails, first we need to add a portal to the Gemfile file Gem ' redis-

Configure Ruby on Rails in CentOS and deploy RedmineGitMake sure that the dependent packages are installed:[Plain] view plaincopy Yuminstallcurl Yuminstallcurl-devel Yuminstallzlib-devel Yuminstallopenssl-devel Yuminstallperl Yuminstallcpio Yuminstallexpat-devel Yuminstallgettext-devel Download the git package and compile and install it: [Plain] view plaincopy Wgethttp: // www.codemonkey.org. u

Recently, many people have emailed me all the vim packages. Download is provided below. You just need to download them. You don't have to send me any more emails. Of course, you are welcome to leave a message on my blog. Now vim-Ruby is installed. Of course, you need to install it yourself. A simple command is provided below Ubuntu:Sudo apt-Get install vim-RubyHowever, it seems that if your vim version is 7.0, Ru