I've found the method set_log in the documentation, I just can't figure out the syntax to call it. Here's what I tried:
require 'ruby-aws'
Amazon::Util::Logging.set_log('my.log')
NoMethodError: undefined method `set_log' for Amazon::Util::Logging:Module
You can see that Amazon::Util::Logging is a module and set_log is a 'Public Instance method'. So you need
class NewClass
include Amazon::Util::Logging
def foo
set_log('file.txt')
log 'debug_message'
end
end
I ran into this problem when trying to deploy a Ruby-on-Rails site that uses 'aws-ruby' to heroku (I got the "Permission denied - ruby-aws.log" error).
To change the log file location from 'ruby-aws.log' to 'log/ruby-aws.log', I added the following to an initializer. Make sure this is called before you use any of the aws-ruby library. Notice the change on the "set_log..." line.
module Amazon
module Util
module Logging
def log( str )
set_log 'log/ruby-aws.log' if ##AmazonLogger.nil?
##AmazonLogger.debug str
end
end
end
end
A simpler way would be to add this line:
set_log("/dev/null")
Related
This might be an easy question but I was unfortunately not able to find the answer on Google.
Context:
I am working on a project of my own, and I am externalizing some code in a gem (FrenchTaxSystem). It is the first I create a gem and I have difficulties using it properly.
Problem:
When calling a method (like testit) defined in the main file (french_tax_system.rb) of my gem I get a "NoMethodError: undefined method `testit' for FrenchTaxSystem:Module", though I can call constants from this same file (like FISCAL_NB_PARTS_FOR_MARRIED_COUPLE) and it puzzles me.
E.g in IRB I get that when calling a method:
[
And it is the same in my Rspecs tests inside my gem
However when calling a constant I have no error:
Main file in my gem:
french_tax_system.rb
module FrenchTaxSystem
class Error < StandardError; end
# Constants
...
FISCAL_NB_PARTS_FOR_MARRIED_COUPLE = 2
...
# Methods
## Main method
def testit
"test me"
end
end
Gem file structure:
Thank you in advance for your help,
Mth0158
This should work:
module FrenchTaxSystem
def self.testit
"test me"
end
end
I'm working with cucumber/ruby and I wanted to create a new module with some methods to use them in my step definitions.
I was reading how to do this here, https://github.com/cucumber/cucumber/wiki/A-Whole-New-World. But when I've tried the following I get an error:
create the new module under /root_location/lib/new_module.rb
create the module as:
.
module Newmodule
def here
puts "here"
end
end
World(Newmodule)
However, when I then try to use the 'here' method from my steps definition, I just get:
undefined local variable or method `here' for # (NameError)
Any idea what I am doing wrong?
The module needs to be located in features, otherwise it won't be added into World. Cucumber does not look outside of features for anything unless you specifically tell it to.
Put this code either in features/support or features/step_definitions
In this blog post he gives this example of a Ruby config file.
config do
allow ['server.com', `hostname`.strip]
vhost 'api.server.com' do
path ‘/usr/local/api’
end
vhost 'www.server.com' do
path '/usr/local/web'
end
%w{wiki blog support}.each do |host|
vhost "#{host}.server.com" do
path "/usr/local/#{host}"
end
end
end
I think of a hash after a config file have been loaded, but maybe that is not how this type of configs are intended for...
Update
If I execute it, I get
$ ruby config.rb
config.rb:2:in `<main>': undefined method `config' for main:Object (NoMethodError)
Question
What Ruby code is needed to parse and dump the content of this config file?
That config example is not directly loadable and, if I understand the blog post author correctly, it's not meant to be either so there's no easy way of loading/parsing that example.
The key part is in the blog post where he states "build simple DSLs to design semantically robust config files without the underlying ruby being conspicuous" (my emphasis). The 'underlying ruby' I take to mean the code that enables the DSL elements you're seeing such as 'config' and 'vhost'.
Your original question was, however, what code is required to load that config - below is a sample of something would work, full implementation is up to you and tbh I'm pretty sure there are cleaner, "better" ways of doing the same.
class AppConfig
attr_accessor :hosts
def allow(hosts)
#hosts = hosts
end
def vhost(hostname)
end
def process_config(&block)
instance_eval(&block)
end
end
def config(&block)
config = AppConfig.new
config.process_config &block
puts "Hosts are: #{config.hosts}"
end
load 'config.rb'
I have this class under lib/some_module in my project:
module SomeModule
class SomeClass
def initialize
end
end
end
When I go into rails console and I type in SomeModule::SomeClass.new, it works just finel. But when I start up the server and try and access it from some other class, I get the error:
uninitialized constant SomeModule::SomeClass
I have added lib to my autoload in Application.rb. Not sure what might be going wrong
You need to add wildcard path to autoload (I'm not sure why - this fixed this error on my machine).
Therefore, add to application.rb:
config.autoload_paths += Dir["#{config.root}/lib/**/"]
I'm doing Michael Hart's tutorial and I get the error:
rails_projects/sample_app/app/controllers/application_controller.rb:3:in `<class:ApplicationController>': uninitialized constant ApplicationController::SessionsHelper (NameError)
Here is my application_controller.rb file:
class ApplicationController < ActionController::Base
protect_from_forgery
include SessionsHelper
# Force signout to prevent CSRF attacks
def handle_unverified_request
sign_out
super
end
end
You should have a file in app/helpers named "sessions_helper.rb". Inside of that you should at least have code like:
module SessionsHelper
end
I hope that helps.
Not sure if you got the answer yet, but I was able to comment the sessionhelper line out and get mine to work. I don't know if this has any far-reaching ramifications, but it help me circumvent the issue for now.
Where did you define SessionHelper? If it's at the top level module, try this:
include ::SessionHelper
Change include SessionsHelper to include SessionHelper
remove S
I had this same issue. Make sure you have run the migration once deployed to heroku:
heroku run rake db:migrate