Problem
You would like to get access to your rails application console on an Amazon ec2 instance, and you are also using rvm.
Solution
ssh name@myserver.com -i amazon_key
cd /my/project/directory/current/
bundle exec rails c environment
Problem
You would like to start your rails console in an environment that is not the development, like staging or production.
Solution
Using the latest 3 shortcut you can use:
rails c staging
Problem
When you try to run the console rails c in a new Rails 3.0.7 application, in Mandriva 2011 64bit, and when you use rvm, you get the following error:
no such file to load -- readline (LoadError)
Solution
Similar to an earlier post here, the solution is as follows with the new requirements described
It’s quite like likely that the readline libraries are missing from your installation. To find out which ones go to the directory that the error is indicating (ie):
cd ~/.rvm/src/ruby-1.9..2-head
and then to the following:
cd ext/readline
then run the following:
ruby extconf.rb
If you get something like:
checking for readline/readline.h... no
checking for editline/readline.h... no
then you are probably missing the neccessary header files for readline.
so install them in your system (ie in Mandriva):
sudo urpmi lib64readline-dev,
When the package is installed successfully run the following again:
ruby extconf.rb
make
sudo make install
You should now be able to go back to your project and run rails c with no errors.
Problem
You are trying to use the pdfkit (here) in your rails application, and you configure it according to the configuration options for the rails 2.x in the config/environment.rb file. Although the application works, when you are trying to use the console you get the error:
no such file to load -- pdfkit (LoadError)
Solution
Make sure that:
require 'pdfkit'
in the config/environment.rb file comes after the line:
require File.join(File.dirname(__FILE__), 'boot')
Problem
You want to test your email configuration and be able to send emails in your development environment, using a GMail account in a Rails application using 2.3.2.
Solution
Start your console in your development environment:
./script/console
Add the following replacing your GMail details:
ActionMailer::Base.smtp_settings = {
:enable_starttls_auto => true,
:address => "smtp.gmail.com",
:port => 587,
:domain => "your_gmail_domain",
:authentication => :plain,
:user_name => "your_gmail_user_name",
:password => "your_gmail_password"}
Add a simple email class:
class MyMailer < ActionMailer::Base
def test_email
@recipients = "an_address_to_sent_to@domain.com"
@from = "address_from@your_google_domain.com"
@subject = "test from dev console"
@body = "this is the body"
end
end
and to finally test the email:
MyMailer::deliver_test_email
if it doesn't return with an error but with something like:
TMail::Mail port=#TMail::StringPort:id=0x..fdab4cee0 bodyport=#TMail::StringPort:id=0x..fdab4a9ec
then it should be working so add the configuration to your environments/development.rb
config.action_mailer.smtp_settings { ... }