heroku ruby on rails

XXX, recently clumsy in writing an automated SVN update for the Web operations Small platform,This decision was implemented with rails 4.But because the textbooks on the Web are implemented in versions 3 or 2. So this time made a lot of detours, now summarized as follows:The relevant view code: This update of the SVN version of the command:" view full log " 'svnlog_out'"svnlog_out"> Related controller code:class Svnupdatecontroller Applicat

Today, I went to cyberspace to deploy my website for my friends. The server is a Windows2003 server. I did not expect to configure ror on Windows2003 as a nightmare, because I saw a lot of IIS and ror documents on the Internet. If you don't know, it's a nightmare. I was too busy till five o'clock P.M., but I still didn't configure it. I came back at night and thought about it. Something is wrong. It may be okay to change my mind. The general idea is to install an Apache listener to port 8080,

For example, if you have a users table, wait until the user ID array:Select ID from the users where age > 20;To implement the above SQL statements, there are several ways to do this in rails: User.where (' Age > '). Select (: ID). Collect (:id) User.where (' Age > '). Select (: ID). map (:id), select ID from ' Users ' where (age User.where (' Age > '). Pluck (: ID), SELECT ' users '. ' ID ' from ' users ' where (age The first t

Ruby on Rails Twitter ApplicationProgramThe interface is very simple.Twitter is a simple rails application.The application interface for querying information is called as a GET request, while the application interface for modifying, creating, or deleting information is a POST request. The command itself is the URL read by your program. Twitter will respond in HTT

In Ruby rails, if you want to save a property (or read a property), and you want to do something else when you save the property (or read a property)You can use the method that overrides the property's setup or reader.For example, a models table has a field called name, and you want to manipulate the name.Method One,Class Model Method Two,Similar to method one, facilitates After_find and Before_save methods

in the article The rest API in Ruby on Rails uses an example of creating your own online translator tool based on cloud Platform + cloud services , using Ruby's net::http to initiate HTTP requests to access language translation services on IBM Bluemix , Tip: End offile reachedThe code is as follows:Auth = "C9819718-4660-441c-9df7-07398950ea44:quvrjpqwsgox"; surl = "https://" + auth + "@gateway. watsonplatfo

Notes for Ruby on Rails migration: rubyonrails migration Save schema. rb under version control.Use rake db: scheme: load to replace rake db: migrate to initialize an empty database.Use rake db: test: prepare to update the schema of the test database. Avoid setting default data in the table. Use the model layer instead. def amount self[:amount] or 0 end However, the use of self [: attr_name] is consider

Converting an array to activerecord::relation is a common requirement. For example, in my project, the backup_projects return value of the array form is obtained from the method. In order to sort and page out this collection, I need to convert it to activerecord::relation form. The conversion method is as follows: Project = Project.backup_projects project.map{|i| i.id} @projects = Project.where (: id = = Project) Now @projects is the activerecord::relation type. Original: https://aakashsharmaror

Rails is for Web projects and you have to think about the large amount of traffic, so let's take a look at how rails performs performance testing. 1. To perform performance testing, we first have to imitate a large number of data, we now know that in the test/fixtures/directory in the Yml file to add our test data, when the test run, the data will be loaded into the database. But a piece of two data can al

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