Ruby on Rails

Machinist + Faker stub your test model

1. Pre-requisite

sudo gem install faker
sudo gem install machinist

2. Configure gem for your test environment

Start rails console with other environment

Normally you start rails console by:

script/console

To start rails console in TEST environment

script/console test

Overwrite default json rendering for active record object

1. Suppose you have made a JSON request and got

[sourcecode language=”javascript”]
[
 { “student_id”: 1, “subject_id” : 1, “score” : 7 }
 { “student_id”: 1, “subject_id” …

assert_valid(record) is depreciated

[sourcecode language=”ruby” highlight=”4"]
…
 def test_assert_valid_is_depreciated
 user = User.new
 assert_valid(user)
 end
…
[/sourcecode]

Use Helper module within controller (Rails)

ជា​ទូទៅ​ Helper ក្នុង Rails ត្រូវ​បាន​ប្រើ​ប្រាស់​ដើម្បី​សម្រួស​ដល់​ View rendering ដូច្នេះ​ហើយ​ method ដែល​នៅ​ក្នុង Helper មិន​ដំណើរការ​ទេ​បើ​អ្នក​យក​វា​ទៅ​ប្រើ​នៅ​ក្នុង Controller។

Serve JSON in Rails

1. Create Rails project

$ Rails rails

2. Run scaffold

Go to rails directory

$ script/generate scaffold book title:string author:string year:integer

Install Ruby on Rails on Ubuntu

1. Update server and install related packages:

[sourcecode language=”bash”]apt-get -y update apt-get -y install ruby-full libsqlite3-dev mercurial build-essential apt-get -y upgrade[/sourcecode]