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Contents
module UcbRailsUser
module Configuration
# Manage configuration from file. Per environment or overall.
#
# @example
# # config/config.yml
# test:
# ldap:
# username: test_username
# password: test_password
#
# ldap:
# username: top_username
# password: top_password
#
# # in config/initializers/ucb_rails.rb (e.g.)
# config = UcbRailsUser::Credentials.new
#
# # in production -- pulls from top level, since no 'production' key
# config.for('ldap') #=> { 'username' => 'top_username', 'password' => 'top_password' }
#
# # in test -- pulls from 'test' key
# config.for('ldap') #=> { 'username' => 'test_username', 'password' => 'test_password' }
class Configuration
FileNotFound = Class.new(StandardError)
KeyNotFound = Class.new(StandardError)
attr_accessor :config_filename, :config_yaml
def initialize(filename=Rails.root.join('config/config.yml'))
self.config_filename = filename.to_s
load_file
end
# Return configuration value for _key_.
# @param key [String]
def for(key)
from_environment(key) || from_top_level(key)
end
# Return configuration value for _key_.
# @raise [UcbRailsUser::Configuration::KeyNotFound] if _key_ not in configuration file.
def for!(key)
self.for(key) or raise(KeyNotFound, key.inspect)
end
private
def from_environment(key)
environment_value && environment_value[key]
end
def from_top_level(key)
config_yaml[key]
end
def environment_value
config_yaml[Rails.env]
end
def load_file
if File.exist?(config_filename)
self.config_yaml = YAML.load_file(config_filename)
else
raise(FileNotFound, config_filename)
end
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems