Whatever that I try to do is generating the error message below:
/home/diogodalla/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/activesupport-5.1.4/lib/active_support/dependencies.rb:292:in `require': Could not load 'active_record/connection_adapters/sqlite3_adapter'. Make sure that the adapter in config/database.yml is valid. If you use an adapter other than 'mysql2', 'postgresql' or 'sqlite3' add the necessary adapter gem to the Gemfile. (LoadError)
I'm using PG on my gemFile, I don't know why it keep looking for sqlite3.
My Gem File:
source 'https://rubygems.org'
git_source(:github) do |repo_name|
repo_name = "#{repo_name}/#{repo_name}" unless repo_name.include?("/")
"https://github.com/#{repo_name}.git"
end
gem 'rails', '~> 5.1.4'
gem 'pg', '~> 0.18'
gem 'puma', '~> 3.7'
gem 'sass-rails', '~> 5.0'
gem 'uglifier', '>= 1.3.0'
gem 'coffee-rails', '~> 4.2'
gem 'bootstrap-sass', '~> 3.3.6'
gem 'jquery-rails'
gem 'turbolinks', '~> 5'
gem 'jbuilder', '~> 2.5'
gem 'devise'
gem 'omniauth'
gem 'omniauth-facebook'
gem 'font-awesome-sass', '~> 4.6.2'
gem "paperclip", "~> 5.0.0"
gem 'geocoder', '~> 1.4'
gem 'searchkick'
gem 'chartkick'
group :development, :test do
gem 'byebug', platform: :mri
end
group :development do
gem 'web-console', '>= 3.3.0'
gem 'listen', '~> 3.0.5'
gem 'spring'
gem 'spring-watcher-listen', '~> 2.0.0'
end
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
Also my DataBase.yml:
# PostgreSQL. Versions 9.1 and up are supported.
#
# Install the pg driver:
# gem install pg
# On OS X with Homebrew:
# gem install pg -- --with-pg-config=/usr/local/bin/pg_config
# On OS X with MacPorts:
# gem install pg -- --with-pg-config=/opt/local/lib/postgresql84/bin/pg_config
# On Windows:
# gem install pg
# Choose the win32 build.
# Install PostgreSQL and put its /bin directory on your path.
#
# Configure Using Gemfile
# gem 'pg'
#
default: &default
adapter: postgresql
encoding: unicode
# For details on connection pooling, see Rails configuration guide
# http://guides.rubyonrails.org/configuring.html#database-pooling
pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
development:
<<: *default
# The specified database role being used to connect to postgres.
# To create additional roles in postgres see `$ createuser --help`.
# When left blank, postgres will use the default role. This is
# the same name as the operating system user that initialized the database.
#username: TaskManager
# The password associated with the postgres role (username).
#password:
# Connect on a TCP socket. Omitted by default since the client uses a
# domain socket that doesn't need configuration. Windows does not have
# domain sockets, so uncomment these lines.
#host: localhost
# The TCP port the server listens on. Defaults to 5432.
# If your server runs on a different port number, change accordingly.
#port: 5432
# Schema search path. The server defaults to $user,public
#schema_search_path: myapp,sharedapp,public
# Minimum log levels, in increasing order:
# debug5, debug4, debug3, debug2, debug1,
# log, notice, warning, error, fatal, and panic
# Defaults to warning.
#min_messages: notice
# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
<<: *default
database: TaskManager_test
# As with config/secrets.yml, you never want to store sensitive information,
# like your database password, in your source code. If your source code is
# ever seen by anyone, they now have access to your database.
#
# Instead, provide the password as a unix environment variable when you boot
# the app. Read http://guides.rubyonrails.org/configuring.html#configuring-a-database
# for a full rundown on how to provide these environment variables in a
# production deployment.
#
# On Heroku and other platform providers, you may have a full connection URL
# available as an environment variable. For example:
#
# DATABASE_URL="postgres://myuser:mypass#localhost/somedatabase"
#
# You can use this database configuration with:
#
# production:
# url: <%= ENV['DATABASE_URL'] %>
#
production:
<<: *default
database: TaskManager_production
username: TaskManager
password: <%= ENV['TASKMANAGER_DATABASE_PASSWORD'] %>
And my dependecies.rb
require "set"
require "thread"
require "concurrent/map"
require "pathname"
require "active_support/core_ext/module/aliasing"
require "active_support/core_ext/module/attribute_accessors"
require "active_support/core_ext/module/introspection"
require "active_support/core_ext/module/anonymous"
require "active_support/core_ext/object/blank"
require "active_support/core_ext/kernel/reporting"
require "active_support/core_ext/load_error"
require "active_support/core_ext/name_error"
require "active_support/core_ext/string/starts_ends_with"
require "active_support/dependencies/interlock"
require "active_support/inflector"
module ActiveSupport #:nodoc:
module Dependencies #:nodoc:
extend self
mattr_accessor :interlock
self.interlock = Interlock.new
# :doc:
# Execute the supplied block without interference from any
# concurrent loads.
def self.run_interlock
Dependencies.interlock.running { yield }
end
# Execute the supplied block while holding an exclusive lock,
# preventing any other thread from being inside a #run_interlock
# block at the same time.
def self.load_interlock
Dependencies.interlock.loading { yield }
end
# Execute the supplied block while holding an exclusive lock,
# preventing any other thread from being inside a #run_interlock
# block at the same time.
def self.unload_interlock
Dependencies.interlock.unloading { yield }
end
# :nodoc:
# Should we turn on Ruby warnings on the first load of dependent files?
mattr_accessor :warnings_on_first_load
self.warnings_on_first_load = false
# All files ever loaded.
mattr_accessor :history
self.history = Set.new
# All files currently loaded.
mattr_accessor :loaded
self.loaded = Set.new
# Stack of files being loaded.
mattr_accessor :loading
self.loading = []
# Should we load files or require them?
mattr_accessor :mechanism
self.mechanism = ENV["NO_RELOAD"] ? :require : :load
# The set of directories from which we may automatically load files. Files
# under these directories will be reloaded on each request in development mode,
# unless the directory also appears in autoload_once_paths.
mattr_accessor :autoload_paths
self.autoload_paths = []
# The set of directories from which automatically loaded constants are loaded
# only once. All directories in this set must also be present in +autoload_paths+.
mattr_accessor :autoload_once_paths
self.autoload_once_paths = []
# An array of qualified constant names that have been loaded. Adding a name
# to this array will cause it to be unloaded the next time Dependencies are
# cleared.
mattr_accessor :autoloaded_constants
self.autoloaded_constants = []
# An array of constant names that need to be unloaded on every request. Used
# to allow arbitrary constants to be marked for unloading.
mattr_accessor :explicitly_unloadable_constants
self.explicitly_unloadable_constants = []
# The WatchStack keeps a stack of the modules being watched as files are
# loaded. If a file in the process of being loaded (parent.rb) triggers the
# load of another file (child.rb) the stack will ensure that child.rb
# handles the new constants.
#
# If child.rb is being autoloaded, its constants will be added to
# autoloaded_constants. If it was being `require`d, they will be discarded.
#
# This is handled by walking back up the watch stack and adding the constants
# found by child.rb to the list of original constants in parent.rb.
class WatchStack
include Enumerable
# #watching is a stack of lists of constants being watched. For instance,
# if parent.rb is autoloaded, the stack will look like [[Object]]. If
# parent.rb then requires namespace/child.rb, the stack will look like
# [[Object], [Namespace]].
def initialize
#watching = []
#stack = Hash.new { |h, k| h[k] = [] }
end
def each(&block)
#stack.each(&block)
end
def watching?
!#watching.empty?
end
# Returns a list of new constants found since the last call to
# <tt>watch_namespaces</tt>.
def new_constants
constants = []
# Grab the list of namespaces that we're looking for new constants under
#watching.last.each do |namespace|
# Retrieve the constants that were present under the namespace when watch_namespaces
# was originally called
original_constants = #stack[namespace].last
mod = Inflector.constantize(namespace) if Dependencies.qualified_const_defined?(namespace)
next unless mod.is_a?(Module)
new_constants = mod.constants(false) - original_constants
#stack[namespace].each do |namespace_constants|
namespace_constants.concat(new_constants)
end
# Normalize the list of new constants, and add them to the list we will return
new_constants.each do |suffix|
constants << ([namespace, suffix] - ["Object"]).join("::".freeze)
end
end
constants
ensure
# A call to new_constants is always called after a call to watch_namespaces
pop_modules(#watching.pop)
end
def watch_namespaces(namespaces)
#watching << namespaces.map do |namespace|
module_name = Dependencies.to_constant_name(namespace)
original_constants = Dependencies.qualified_const_defined?(module_name) ?
Inflector.constantize(module_name).constants(false) : []
#stack[module_name] << original_constants
module_name
end
end
private
def pop_modules(modules)
modules.each { |mod| #stack[mod].pop }
end
end
# An internal stack used to record which constants are loaded by any block.
mattr_accessor :constant_watch_stack
self.constant_watch_stack = WatchStack.new
# Module includes this module.
module ModuleConstMissing #:nodoc:
def self.append_features(base)
base.class_eval do
# Emulate #exclude via an ivar
return if defined?(#_const_missing) && #_const_missing
#_const_missing = instance_method(:const_missing)
remove_method(:const_missing)
end
super
end
def self.exclude_from(base)
base.class_eval do
define_method :const_missing, #_const_missing
#_const_missing = nil
end
end
def const_missing(const_name)
from_mod = anonymous? ? guess_for_anonymous(const_name) : self
Dependencies.load_missing_constant(from_mod, const_name)
end
def guess_for_anonymous(const_name)
if Object.const_defined?(const_name)
raise NameError.new "#{const_name} cannot be autoloaded from an anonymous class or module", const_name
else
Object
end
end
def unloadable(const_desc = self)
super(const_desc)
end
end
# Object includes this module.
module Loadable #:nodoc:
def self.exclude_from(base)
base.class_eval do
define_method(:load, Kernel.instance_method(:load))
private :load
end
end
def require_or_load(file_name)
Dependencies.require_or_load(file_name)
end
def require_dependency(file_name, message = "No such file to load -- %s.rb")
file_name = file_name.to_path if file_name.respond_to?(:to_path)
unless file_name.is_a?(String)
raise ArgumentError, "the file name must either be a String or implement #to_path -- you passed #{file_name.inspect}"
end
Dependencies.depend_on(file_name, message)
end
def load_dependency(file)
if Dependencies.load? && Dependencies.constant_watch_stack.watching?
Dependencies.new_constants_in(Object) { yield }
else
yield
end
rescue Exception => exception # errors from loading file
exception.blame_file! file if exception.respond_to? :blame_file!
raise
end
def unloadable(const_desc)
Dependencies.mark_for_unload const_desc
end
private
def load(file, wrap = false)
result = false
load_dependency(file) { result = super }
result
end
def require(file)
result = false
load_dependency(file) { result = super }
result
end
end
# Exception file-blaming.
module Blamable #:nodoc:
def blame_file!(file)
(#blamed_files ||= []).unshift file
end
def blamed_files
#blamed_files ||= []
end
def describe_blame
return nil if blamed_files.empty?
"This error occurred while loading the following files:\n #{blamed_files.join "\n "}"
end
def copy_blame!(exc)
#blamed_files = exc.blamed_files.clone
self
end
end
def hook!
Object.class_eval { include Loadable }
Module.class_eval { include ModuleConstMissing }
Exception.class_eval { include Blamable }
end
def unhook!
ModuleConstMissing.exclude_from(Module)
Loadable.exclude_from(Object)
end
def load?
mechanism == :load
end
def depend_on(file_name, message = "No such file to load -- %s.rb")
path = search_for_file(file_name)
require_or_load(path || file_name)
rescue LoadError => load_error
if file_name = load_error.message[/ -- (.*?)(\.rb)?$/, 1]
load_error.message.replace(message % file_name)
load_error.copy_blame!(load_error)
end
raise
end
def clear
Dependencies.unload_interlock do
loaded.clear
loading.clear
remove_unloadable_constants!
end
end
def require_or_load(file_name, const_path = nil)
file_name = $` if file_name =~ /\.rb\z/
expanded = File.expand_path(file_name)
return if loaded.include?(expanded)
Dependencies.load_interlock do
# Maybe it got loaded while we were waiting for our lock:
return if loaded.include?(expanded)
loaded << expanded
loading << expanded
begin
if load?
# Enable warnings if this file has not been loaded before and
# warnings_on_first_load is set.
load_args = ["#{file_name}.rb"]
load_args << const_path unless const_path.nil?
if !warnings_on_first_load || history.include?(expanded)
result = load_file(*load_args)
else
enable_warnings { result = load_file(*load_args) }
end
else
result = require file_name
end
rescue Exception
loaded.delete expanded
raise
ensure
loading.pop
end
# Record history *after* loading so first load gets warnings.
history << expanded
result
end
end
# Is the provided constant path defined?
def qualified_const_defined?(path)
Object.const_defined?(path, false)
end
def loadable_constants_for_path(path, bases = autoload_paths)
path = $` if path =~ /\.rb\z/
expanded_path = File.expand_path(path)
paths = []
bases.each do |root|
expanded_root = File.expand_path(root)
next unless expanded_path.start_with?(expanded_root)
root_size = expanded_root.size
next if expanded_path[root_size] != ?/.freeze
nesting = expanded_path[(root_size + 1)..-1]
paths << nesting.camelize unless nesting.blank?
end
paths.uniq!
paths
end
# Search for a file in autoload_paths matching the provided suffix.
def search_for_file(path_suffix)
path_suffix = path_suffix.sub(/(\.rb)?$/, ".rb".freeze)
autoload_paths.each do |root|
path = File.join(root, path_suffix)
return path if File.file? path
end
nil # Gee, I sure wish we had first_match ;-)
end
def autoloadable_module?(path_suffix)
autoload_paths.each do |load_path|
return load_path if File.directory? File.join(load_path, path_suffix)
end
nil
end
def load_once_path?(path)
# to_s works around a ruby issue where String#starts_with?(Pathname)
# will raise a TypeError: no implicit conversion of Pathname into String
autoload_once_paths.any? { |base| path.starts_with? base.to_s }
end
def autoload_module!(into, const_name, qualified_name, path_suffix)
return nil unless base_path = autoloadable_module?(path_suffix)
mod = Module.new
into.const_set const_name, mod
autoloaded_constants << qualified_name unless autoload_once_paths.include?(base_path)
mod
end
def load_file(path, const_paths = loadable_constants_for_path(path))
const_paths = [const_paths].compact unless const_paths.is_a? Array
parent_paths = const_paths.collect { |const_path| const_path[/.*(?=::)/] || ::Object }
result = nil
newly_defined_paths = new_constants_in(*parent_paths) do
result = Kernel.load path
end
autoloaded_constants.concat newly_defined_paths unless load_once_path?(path)
autoloaded_constants.uniq!
result
end
def qualified_name_for(mod, name)
mod_name = to_constant_name mod
mod_name == "Object" ? name.to_s : "#{mod_name}::#{name}"
end
def load_missing_constant(from_mod, const_name)
unless qualified_const_defined?(from_mod.name) && Inflector.constantize(from_mod.name).equal?(from_mod)
raise ArgumentError, "A copy of #{from_mod} has been removed from the module tree but is still active!"
end
qualified_name = qualified_name_for from_mod, const_name
path_suffix = qualified_name.underscore
file_path = search_for_file(path_suffix)
if file_path
expanded = File.expand_path(file_path)
expanded.sub!(/\.rb\z/, "".freeze)
if loading.include?(expanded)
raise "Circular dependency detected while autoloading constant #{qualified_name}"
else
require_or_load(expanded, qualified_name)
raise LoadError, "Unable to autoload constant #{qualified_name}, expected #{file_path} to define it" unless from_mod.const_defined?(const_name, false)
return from_mod.const_get(const_name)
end
elsif mod = autoload_module!(from_mod, const_name, qualified_name, path_suffix)
return mod
elsif (parent = from_mod.parent) && parent != from_mod &&
! from_mod.parents.any? { |p| p.const_defined?(const_name, false) }
return parent.const_missing(const_name)
rescue NameError => e
raise unless e.missing_name? qualified_name_for(parent, const_name)
end
end
name_error = NameError.new("uninitialized constant #{qualified_name}", const_name)
name_error.set_backtrace(caller.reject { |l| l.starts_with? __FILE__ })
raise name_error
end
# Remove the constants that have been autoloaded, and those that have been
# marked for unloading. Before each constant is removed a callback is sent
# to its class/module if it implements +before_remove_const+.
#
# The callback implementation should be restricted to cleaning up caches, etc.
# as the environment will be in an inconsistent state, e.g. other constants
# may have already been unloaded and not accessible.
def remove_unloadable_constants!
autoloaded_constants.each { |const| remove_constant const }
autoloaded_constants.clear
Reference.clear!
explicitly_unloadable_constants.each { |const| remove_constant const }
end
class ClassCache
def initialize
#store = Concurrent::Map.new
end
def empty?
#store.empty?
end
def key?(key)
#store.key?(key)
end
def get(key)
key = key.name if key.respond_to?(:name)
#store[key] ||= Inflector.constantize(key)
end
alias :[] :get
def safe_get(key)
key = key.name if key.respond_to?(:name)
#store[key] ||= Inflector.safe_constantize(key)
end
def store(klass)
return self unless klass.respond_to?(:name)
raise(ArgumentError, "anonymous classes cannot be cached") if klass.name.empty?
#store[klass.name] = klass
self
end
def clear!
#store.clear
end
end
Reference = ClassCache.new
# Store a reference to a class +klass+.
def reference(klass)
Reference.store klass
end
# Get the reference for class named +name+.
# Raises an exception if referenced class does not exist.
def constantize(name)
Reference.get(name)
end
# Get the reference for class named +name+ if one exists.
# Otherwise returns +nil+.
def safe_constantize(name)
Reference.safe_get(name)
end
# Determine if the given constant has been automatically loaded.
def autoloaded?(desc)
return false if desc.is_a?(Module) && desc.anonymous?
name = to_constant_name desc
return false unless qualified_const_defined?(name)
return autoloaded_constants.include?(name)
end
# Will the provided constant descriptor be unloaded?
def will_unload?(const_desc)
autoloaded?(const_desc) ||
explicitly_unloadable_constants.include?(to_constant_name(const_desc))
end
# Mark the provided constant name for unloading. This constant will be
# unloaded on each request, not just the next one.
def mark_for_unload(const_desc)
name = to_constant_name const_desc
if explicitly_unloadable_constants.include? name
false
else
explicitly_unloadable_constants << name
true
end
end
# Run the provided block and detect the new constants that were loaded during
# its execution. Constants may only be regarded as 'new' once -- so if the
# block calls +new_constants_in+ again, then the constants defined within the
# inner call will not be reported in this one.
#
# If the provided block does not run to completion, and instead raises an
# exception, any new constants are regarded as being only partially defined
# and will be removed immediately.
def new_constants_in(*descs)
constant_watch_stack.watch_namespaces(descs)
success = false
begin
yield # Now yield to the code that is to define new constants.
success = true
ensure
new_constants = constant_watch_stack.new_constants
return new_constants if success
# Remove partially loaded constants.
new_constants.each { |c| remove_constant(c) }
end
end
# Convert the provided const desc to a qualified constant name (as a string).
# A module, class, symbol, or string may be provided.
def to_constant_name(desc) #:nodoc:
case desc
when String then desc.sub(/^::/, "")
when Symbol then desc.to_s
when Module
desc.name ||
raise(ArgumentError, "Anonymous modules have no name to be referenced by")
else raise TypeError, "Not a valid constant descriptor: #{desc.inspect}"
end
end
def remove_constant(const) #:nodoc:
# Normalize ::Foo, ::Object::Foo, Object::Foo, Object::Object::Foo, etc. as Foo.
normalized = const.to_s.sub(/\A::/, "")
normalized.sub!(/\A(Object::)+/, "")
constants = normalized.split("::")
to_remove = constants.pop
# Remove the file path from the loaded list.
file_path = search_for_file(const.underscore)
if file_path
expanded = File.expand_path(file_path)
expanded.sub!(/\.rb\z/, "")
loaded.delete(expanded)
end
if constants.empty?
parent = Object
else
parent_name = constants.join("::")
return unless qualified_const_defined?(parent_name)
parent = constantize(parent_name)
end
# In an autoloaded user.rb like this
#
# autoload :Foo, 'foo'
#
# class User < ActiveRecord::Base
# end
#
# we correctly register "Foo" as being autoloaded. But if the app does
# not use the "Foo" constant we need to be careful not to trigger
# loading "foo.rb" ourselves. While #const_defined? and #const_get? do
# require the file, #autoload? and #remove_const don't.
#
# We are going to remove the constant nonetheless ---which exists as
# far as Ruby is concerned--- because if the user removes the macro
# call from a class or module that were not autoloaded, as in the
# example above with Object, accessing to that constant must err.
unless parent.autoload?(to_remove)
begin
constantized = parent.const_get(to_remove, false)
rescue NameError
# The constant is no longer reachable, just skip it.
return
else
constantized.before_remove_const if constantized.respond_to?(:before_remove_const)
end
end
begin
parent.instance_eval { remove_const to_remove }
rescue NameError
# The constant is no longer reachable, just skip it.
end
end
end
end
ActiveSupport::Dependencies.hook!
Any tips abut it?
thank you all.
Where do you install libraries ? Try following procedure before running Rails, please.
Remove local libraries and re-install
$ rm -rf ./vendor/bundle
$ bundle install --path ./vendor/bundle
$ bundle exec rails server
What I need is basically send a target argument and use it in my RSpec tests, e.g.:
$ rake unistall_and_run[test_spec.rb]
Rakefile:
desc 'uninstall app to run tests'
task :uninstall_and_run, [:arg] do |t, arg|
#note this, i will explain later
start_driver(fullReset: true)
oi = arg.to_s.split('"')[1]
file_dir = (project_home + '/spec/' + oi)
exec "rspec #{file_dir}"
end
start_driver is called on that line, but when I run the tests (exec "rspec ..."), it is called again and the args I passed is overwritten by the default (because its on RSpec config).
What I'd like to do is, on my RSpec file check if it was already called and don't run again.
Here is the start_driver method:
def start_driver(options= {})
if options.empty?
capabilities = caps
else
capabilities = caps(options)
end
$appium = Appium::Driver.new(caps: capabilities)
$browser = $appium.start_driver
Appium.promote_appium_methods RSpec::Core::ExampleGroup
end
So, i found a way to do it. Its not beautiful though. I save a file with the args I want when run rake:
desc 'uninstall app to run tests'
task :uninstall_and_run, [:arg] do |t, arg|
send_custom_caps(fullReset: true)
oi = arg.to_s.split('"')[1]
file_dir = (project_home + '/spec/' + oi)
exec "rspec #{file_dir}"
end
and the send_custom_caps method is:
def send_custom_caps(*opts)
file = File.new(custom_caps_file, "w+")
File.open(file, 'w') do |f|
f.write(opts)
end
end
now the ruby code itself (in this case, my spec config) will check if there is custom args before start_driver. Here is my custom start_driver method (which I renamed):
def start_appium_driver (options= {})
if options.empty?
get_caps
if $custom_args
capabilities = caps($custom_args)
else
capabilities = caps
end
else
capabilities = caps(options)
end
$appium = Appium::Driver.new(caps: capabilities)
$browser = $appium.start_driver
Appium.promote_appium_methods RSpec::Core::ExampleGroup
end
and get_caps
def get_caps
if File.exist?(custom_caps_file) #$custom_args
file = File.read(custom_caps_file)
$custom_args = eval(file)
File.delete (custom_caps_file)
end
$custom_args unless $custom_args.defined?
end
probably this is not the best solution, but it is working ok for me :)
I am develop a simple web app with sinatra and ruby, and I have two files: app.rb is my sinatra app and test.cgi is a CGI program. I need execute the CGI script, for example:
#!/usr/bin/env ruby
# encoding: utf-8
# app.rb
require "sinatra"
get "/form" do
File.read("my_web_form.html")
end
post "/form" do
# I need execute the CGI script, but this not works:
cgi "text.cgi"
end
My CGI script is a custom language (I have a interpreter created by me), and I try to embed it into web apps. Thanks.
I've done some searching and I'm not able to find a way to "render CGI" in the way you're trying (which is the intuitive way).
However it does seem that you can run Sinata from a CGI. See here for a code example.
I was actually trying to do this a few days ago, and I guess I gave up. But seeing your question encouraged me to figure it out. See the following example of how to render CGI from sinatra:
A sample CGI file, say it's at ./app.cgi and chmod +x has been run
#!/usr/bin/env ruby
require "cgi"
cgi = CGI.new("html4")
cgi.out{
cgi.html{
cgi.head{ "\n"+cgi.title{"This Is a Test"} } +
cgi.body{ "\n"+
cgi.h1 { "This is a Test" } + "\n"+
}
}
}
A module which defines a render_cgi method:
class RenderCgiError < StandardError
end
module RenderCgi
def render_cgi(filepath, options={})
headers_string, body = run_cgi_and_parse_output(filepath, options)
headers_hash = parse_headers_string(headers_string)
response = Rack::Response.new
headers_hash.each { |k,v| response.header[k] = v }
response.body << body
response
end
private
def run_cgi_and_parse_output(filepath, options={})
options_string = options.reduce("") { |str, (k,v)| str << "#{k}=#{v} " }
# make sure options has at least one key-val pair, otherwise running the CGI may hang
if options_string.split("=").select { |part| (part&.length || -1) > 0 }.length < 2
raise(RenderCgiError, "one truthy key and associated truthy val is required for options")
end
output = `sh #{filepath} #{options_string}`
headers_string, body = output.split("\n\r")
return [headers_string, body]
end
def parse_headers_string(string)
return string.split("\n").reduce({}) do |results, line|
key, val = line.split(": ")
results[key.chomp] = val.chomp
next results
end
end
end
and a Sinatra app which runs it
require 'sinatra'
class MyApp < Sinatra::Base
include RenderCgi
get '/' do
render_cgi("./app.cgi", { "foo" => "bar" })
end
end
MyApp.run!
I'm trying to configure the debuglevel for active-record logger from a YAML configuration file but get the following error, how could i do this other than using a number in the YAML ?
sample.rb:30 warning: toplevel constant LEVEL referenced by Logger::LEVEL
"DEBUG"
ArgumentError: comparison of Fixnum with String failed
here is the sample.rb
require 'java'
require 'active_record'
require 'activerecord-jdbc-adapter'
require 'yaml'
require 'logger'
def get_jar_path
if __FILE__[/.+\.jar!/] #in case run from JAR
scriptpath = __FILE__[/(.*)\/.+\.jar!/]
$1[6..-1]
else #in case run with jRuby
'..'
end
end
def load_config
path = "#{get_jar_path}/#{File.basename(__FILE__, ".*")}.configuration.yml"
p path
$conf = YAML::load_file(path)
end
load_config
LEVEL = $conf['debug_level'] #string 'DEBUG' from configuration file
$log = Logger.new( "#{get_jar_path}/log_#{Time.now.strftime("%Y%m%d")}.txt", 'monthly' )
ActiveRecord::Base.logger = $log
ActiveRecord::Base.logger.level = Logger::DEBUG #works
ActiveRecord::Base.logger.level = Logger::LEVEL #doesn't work
p ActiveRecord::Base.logger.level
$log.info "start #{__FILE__}"
The available log levels are: :debug, :info, :warn, :error, :fatal,
and :unknown, corresponding to the log level numbers from 0 up to 5
respectively.
http://guides.rubyonrails.org/debugging_rails_applications.html
require 'logger'
puts Logger::DEBUG
--output:--
0
str = "DEBUG"
puts Logger.const_get(str)
--output:--
0
So you should do something like:
level = $conf['debug_level'] #string 'DEBUG' from configuration file
$log = Logger.new( "#{get_jar_path}/log_#{Time.now.strftime("%Y%m%d")}.txt", 'monthly' )
ActiveRecord::Base.logger = $log
ActiveRecord::Base.logger.level = Logger.const_get(level)
I'm not sure why you thought defining a constant, LEVEL, in the current scope would make that constant appear in the Logger scope, so that you could write Logger::LEVEL. You essentially did this:
MYCONST = "hello"
module SomeModule
SOMECONST = "goodbye"
end
You can write:
puts MYCONST #=>hello
..and you can write:
puts SomeModule::SOMECONST #goodbye
..but you cannot write:
puts SomeModule::MYCONST
--output:--
1.rb:10:in `<main>': uninitialized constant SomeModule::MYCONST (NameError)
I'm learning Ruby (using version 1.8.6) on Windows 7.
When I try to run the stock_stats.rb program below, I get the following error:
C:\Users\Will\Desktop\ruby>ruby stock_stats.rb
stock_stats.rb:1: undefined method `require_relative' for main:Object (NoMethodE
rror)
I have three v.small code files:
stock_stats.rb
require_relative 'csv_reader'
reader = CsvReader.new
ARGV.each do |csv_file_name|
STDERR.puts "Processing #{csv_file_name}"
reader.read_in_csv_data(csv_file_name)
end
puts "Total value = #{reader.total_value_in_stock}"
csv_reader.rb
require 'csv'
require_relative 'book_in_stock'
class CsvReader
def initialize
#books_in_stock = []
end
def read_in_csv_data(csv_file_name)
CSV.foreach(csv_file_name, headers: true) do |row|
#books_in_stock << BookInStock.new(row["ISBN"], row["Amount"])
end
end
# later we'll see how to use inject to sum a collection
def total_value_in_stock
sum = 0.0
#books_in_stock.each {|book| sum += book.price}
sum
end
def number_of_each_isbn
# ...
end
end
book_in_stock.rb
require 'csv'
require_relative 'book_in_stock'
class CsvReader
def initialize
#books_in_stock = []
end
def read_in_csv_data(csv_file_name)
CSV.foreach(csv_file_name, headers: true) do |row|
#books_in_stock << BookInStock.new(row["ISBN"], row["Amount"])
end
end
# later we'll see how to use inject to sum a collection
def total_value_in_stock
sum = 0.0
#books_in_stock.each {|book| sum += book.price}
sum
end
def number_of_each_isbn
# ...
end
end
Thanks in advance for any help.
require_relative doesn't exist in your version of Ruby. You could upgrade Ruby, install the backports gem and require 'backports/1.9.1/kernel/require/relative' but the easiest fix will be to change your require to:
require File.join(File.dirname(__FILE__), 'csv_reader')
Edit:
Back in the days where this question was asked it referred to Ruby 1.8.6 where there was no require_relative. By now Ruby 1.8.6 is outdated and shouldn't be used anymore.
Original:
There is simply no method name require_relative. You can use require there aswell.
The require_relative function is included in an extension project to the Ruby core libraries, found here: http://www.rubyforge.org/projects/extensions
You should be able to install them with gem install extensions.
Then in your code add the following line before the require_relative:
require 'extensions/all'