I'm trying to setup Rails Administrate - https://github.com/thoughtbot/administrate.
Following the docs:
gem "administrate" in the Gemfile
rails generate administrate:install
"Restart your server, and visit http://localhost:3000/admin to see your new dashboard in action."
From the Rails log, when visiting localhost:3000/admin I see the following SQL query is executed:
Order Load (0.7ms) SELECT "orders".* FROM "orders" LIMIT $1 OFFSET $2 [["LIMIT", 25], ["OFFSET", 475]]
Why is the OFFSET put on 475?
But more importantly, how do set it to 0 or remove it at all?
UPDATE:
I'm using will_paginate too (possible conflict here?)
My Kaminari settings in: config/initializers/kaminari_config.rb:
Kaminari.configure do |config|
config.default_per_page = 25
config.max_per_page = nil
config.window = 4
config.outer_window = 0
config.left = 0
config.right = 0
config.page_method_name = :per
config.param_name = :page
config.max_pages = nil
config.params_on_first_page = false
end
SOLUTION
will_paginate was interfering with kaminari
I created an initializer for will_paginate:
# config/initializers/will_paginate.rb
if defined?(WillPaginate)
module WillPaginate
module ActiveRecord
module RelationMethods
def per(value = nil) per_page(value) end
def total_count() count end
def first_page?() self == first end
def last_page?() self == last end
end
end
module CollectionMethods
alias_method :num_pages, :total_pages
end
end
end
Now it works!
I am trying to import data from CSV into the database using Classes so that I can easily write Test Case for the csv import rake task I created
However, my solution does not work.
And I also feel:
It doesn't make sense
Aside feeling its not a good solution that connotes Ruby mastery, it doesn't work.
Here is what I came up with in my engines/csv_importer/lib/tasks/csv_import.rake
require 'open-uri'
require 'csv'
namespace :csv_import do
desc 'Import users from csv'
task users: :environment do
WebImport.new(url: 'http://blablabla.com/details/people.csv').call.answers
end
end
class WebImport
def initialize(url)
#csv_string = url
end
def call
CSV.parse(#csv_string, headers: true, header_converters: :symbol) do |row|
next unless row[:name].present? && row[:email_address].present?
end
CsvImporter::User.create row.to_h
end
def self.answers
user = []
counter = 0
duplicate_counter = 0
user.persisted? ? counter + 1 : duplicate_counter + 1
p "Email duplicate record: #{user.email_address} - #{user.errors.full_messages.join(',')}" if user.errors.any?
p "Imported #{counter} users, #{duplicate_counter} duplicate rows ain't added in total"
end
end
Error when I run rake csv_import:users
$ rake csv_import:users
rake aborted!
NoMethodError: private method `gets' called for {:url=>"http://blablabla.com/details/people.csv"}:Hash
How do I make this work and write TEST for this at the long run?
You are getting this error because you are passing a hash to CSV.parse while that method accepts a string.
To fix that you need to change argument from a hash to a string: WebImport.new('http://blablabla.com/details/people.csv') and read a remote CSV file before passing it to CSV.parse, for example: CSV.parse(open(url)).
You can try to use
rake db:seed
to import the data to your database using seed file as
require 'csv'
puts "Importing data..."
CSV.foreach(Rails.root.join("file_name.csv"), headers: true) do |row|
Model_name.create! do |model_name|
model_name.name = row[0]
model_name.email_address = row[1]
end
end
csv file should be in your project root folder
We use airbrake throughout our codebase which works great except for custom classes that do not inherit from a Rails hierarchy (i.e. ActiveRecord).
Some code:
class Offer
def counter(amount, qty=1)
begin
offers_response = viyet_mage_rest_client.counter_offer(#id.to_i, amount, qty.to_i)
rescue => e
notify_airbrake(e)
offers_response = []
end
end
end
In airbrake we see:
NoMethodError: undefined method `notify_airbrake' for Offer:Class
As the error. I want the actual error and not an error for reporting an error!
Our airbrake.rb file:
if Rails.env.production? || Rails.env.staging?
Airbrake.configure do |config|
config.api_key = Settings.airbrake.api_key
config.secure = true
end
end
Any help would be appreciated!
The method you need is Airbrake.notify_or_ignore(). For your given example:
class Offer
def counter(amount, qty=1)
begin
offers_response = viyet_mage_rest_client.counter_offer(#id.to_i, amount, qty.to_i)
rescue => e
Airbrake.notify_or_ignore(e)
offers_response = []
end
end
end
More detail can be found here: https://github.com/airbrake/airbrake/wiki/Using-Airbrake-with-plain-Ruby
Now I am dealing with dashing from here http://shopify.github.io/dashing/ I created an dashing app using Sinatra and I added some more 3rd party API's everything is working well. Now I want to run the app with rails I tried every thing is working fine but "event" method can't be called by server.Actually it is in dashing.rb file in my lib directory it is like this.
require 'sinatra'
``require 'sprockets'
require 'sinatra/content_for'
require 'rufus/scheduler'
require 'coffee-script'
require 'sass'
require 'json'
require 'pry'
module Dashing
SCHEDULER = Rufus::Scheduler.start_new
class App < Sinatra::Base
if Rails && Rails.root
set :root, Rails.root
set :root_path, '/dashing/'
Rails.application.config.assets.precompile += %w( dashing/application.js dashing/application.css )
set :views, Rails.root.join('app', 'dashing', 'dashboards')
set :widget_path, "#{settings.root}/app/dashing/widgets/"
set :lock, true
set :threaded, true
else
set :root, Dir.pwd
set :root_path, '/'
set :sprockets, Sprockets::Environment.new(settings.root)
set :assets_prefix, '/assets'
set :digest_assets, false
['assets/javascripts', 'assets/stylesheets', 'assets/fonts', 'assets/images', 'widgets', File.expand_path('../../javascripts', __FILE__)]. each do |path|
settings.sprockets.append_path path
end
set server: 'thin'
set :public_folder, File.join(settings.root, 'public')
set :views, File.join(settings.root, 'dashboards')
set :widget_path, File.join(settings.root, 'widgets')
end
set connections: [], history: {}
set :default_dashboard, nil
set :auth_token, nil
helpers Sinatra::ContentFor
helpers do
def protected!
# override with auth logic
end
end
get '/events', provides: 'text/event-stream' do
protected!
stream :keep_open do |out|
settings.connections << out
out << self.latest_events
out.callback { settings.connections.delete(out) }
end
end
get '/' do
begin
redirect settings.root_path + (settings.default_dashboard || self.first_dashboard).to_s
rescue NoMethodError => e
raise Exception.new("There are no dashboards in your dashboard directory.")
end
end
get '/:dashboard' do
protected!
erb params[:dashboard].to_sym
end
get '/views/:widget?.html' do
protected!
widget = params[:widget]
send_file File.join(settings.widget_path, widget, "#{widget}.html")
end
post '/widgets/:id' do
request.body.rewind
body = JSON.parse(request.body.read)
auth_token = body.delete("auth_token")
if !settings.auth_token || settings.auth_token == auth_token
Dashing::Application.send_event(params['id'], body)
204 # response without entity body
else
status 401
"Invalid API key\n"
end
end
class << self
def development?
ENV['RACK_ENV'] == 'development'
end
def production?
ENV['RACK_ENV'] == 'production'
end
def send_event(id, body)
body["id"] = id
body["updatedAt"] = Time.now.to_i
event = format_event(body.to_json)
settings.history[id] = event
settings.connections.each { |out| out << event }
end
def format_event(body)
"data: #{body}\n\n"
end
end
def latest_events
settings.history.inject("") do |str, (id, body)|
str << body
end
end
def first_dashboard
files = Dir[File.join(settings.views, '*.erb')].collect { |f| f.match(/(\w*).erb/)[1] }
files -= ['layout']
files.first
end
Dir[File.join(settings.root, 'lib', '**', '*.rb')].each {|file| require file }
{}.to_json # Forces your json codec to initialize (in the event that it is lazily loaded). Does this before job threads start.
job_path = ENV["JOB_PATH"] || 'jobs'
files = Dir[File.join(settings.root, job_path, '/*.rb')]
files.each { |job| require(job) }
end
end
Rails unable to execute /events root in this.
Can any one suggest me. How to call this /events root in rails.I am using batman.js to call events.
You might want to take a look at Dashing-Rails gem
it only applies on rails 4
Requirements
Ruby >=1.9.3
Rails 4
Redis
Multi Threaded server (puma, rainbows)
I have a Rails application that has an action invoked frequently enough to be inconvenient when I am developing, as it results in a lot of extra log output I don't care about. How can I get rails not to log anything (controller, action, parameters, completion time, etc.) for just this one action? I'd like to conditionalize it on RAILS_ENV as well, so logs in production are complete.
Thanks!
You can silence the Rails logger object:
def action
Rails.logger.silence do
# Things within this block will not be logged...
end
end
Use lograge gem.
Gemfile:
gem 'lograge'
config/application.rb:
config.lograge.enabled = true
config.lograge.ignore_actions = ['StatusController#nginx', ...]
The following works with at least Rails 3.1.0:
Make a custom logger that can be silenced:
# selective_logger.rb
class SelectiveLogger < Rails::Rack::Logger
def initialize app, opts = {}
#app = app
#opts = opts
#opts[:silenced] ||= []
end
def call env
if #opts[:silenced].include?(env['PATH_INFO']) || #opts[:silenced].any? {|silencer| silencer.is_a?( Regexp) && silencer.match( env['PATH_INFO']) }
Rails.logger.silence do
#app.call env
end
else
super env
end
end
end
Tell Rails to use it:
# application.rb
config.middleware.swap Rails::Rack::Logger, SelectiveLogger, :silenced => ["/remote/every_minute", %r"^/assets/"]
The example above shows silencing asset serving requests, which in the development environment means less ( and sometimes no) scrolling back is required to see the actual request.
The answer turns out to be a lot harder than I expected, since rails really does provide no hook to do this. Instead, you need to wrap some of the guts of ActionController::Base. In the common base class for my controllers, I do
def silent?(action)
false
end
# this knows more than I'd like about the internals of process, but
# the other options require knowing even more. It would have been
# nice to be able to use logger.silence, but there isn't a good
# method to hook that around, due to the way benchmarking logs.
def log_processing_with_silence_logs
if logger && silent?(action_name) then
#old_logger_level, logger.level = logger.level, Logger::ERROR
end
log_processing_without_silence_logs
end
def process_with_silence_logs(request, response, method = :perform_action, *arguments)
ret = process_without_silence_logs(request, response, method, *arguments)
if logger && silent?(action_name) then
logger.level = #old_logger_level
end
ret
end
alias_method_chain :log_processing, :silence_logs
alias_method_chain :process, :silence_logs
then, in the controller with the method I want to suppress logging on:
def silent?(action)
RAILS_ENV == "development" && ['my_noisy_action'].include?(action)
end
You can add the gem to the Gemfile silencer.
gem 'silencer', '>= 1.0.1'
And in your config/initializers/silencer.rb :
require 'silencer/logger'
Rails.application.configure do
config.middleware.swap Rails::Rack::Logger, Silencer::Logger, silence: ['/api/notifications']
end
The following works with Rails 2.3.14:
Make a custom logger that can be silenced:
#selective_logger.rb
require "active_support"
class SelectiveLogger < ActiveSupport::BufferedLogger
attr_accessor :silent
def initialize path_to_log_file
super path_to_log_file
end
def add severity, message = nil, progname = nil, &block
super unless #silent
end
end
Tell Rails to use it:
#environment.rb
config.logger = SelectiveLogger.new config.log_path
Intercept the log output at the beginning of each action and (re)configure the logger depending on whether the action should be silent or not:
#application_controller.rb
# This method is invoked in order to log the lines that begin "Processing..."
# for each new request.
def log_processing
logger.silent = %w"ping time_zone_table".include? params[:action]
super
end
With Rails 5 it gets more complicated request processing is logged in several classes. Firstly we need to override call_app in Logger class, let's call this file lib/logger.rb:
# original class:
# https://github.com/rails/rails/blob/master/railties/lib/rails/rack/logger.rb
require 'rails/rack/logger'
module Rails
module Rack
class Logger < ActiveSupport::LogSubscriber
def call_app(request, env) # :doc:
unless Rails.configuration.logger_exclude.call(request.filtered_path)
instrumenter = ActiveSupport::Notifications.instrumenter
instrumenter.start "request.action_dispatch", request: request
logger.info { started_request_message(request) }
end
status, headers, body = #app.call(env)
body = ::Rack::BodyProxy.new(body) { finish(request) }
[status, headers, body]
rescue Exception
finish(request)
raise
ensure
ActiveSupport::LogSubscriber.flush_all!
end
end
end
end
Then follow with lib/silent_log_subscriber.rb:
require 'active_support/log_subscriber'
require 'action_view/log_subscriber'
require 'action_controller/log_subscriber'
# original class:
# https://github.com/rails/rails/blob/master/actionpack/lib/action_controller/log_subscriber.rb
class SilentLogSubscriber < ActiveSupport::LogSubscriber
def start_processing(event)
return unless logger.info?
payload = event.payload
return if Rails.configuration.logger_exclude.call(payload[:path])
params = payload[:params].except(*ActionController::LogSubscriber::INTERNAL_PARAMS)
format = payload[:format]
format = format.to_s.upcase if format.is_a?(Symbol)
info "Processing by #{payload[:controller]}##{payload[:action]} as #{format}"
info " Parameters: #{params.inspect}" unless params.empty?
end
def process_action(event)
return if Rails.configuration.logger_exclude.call(event.payload[:path])
info do
payload = event.payload
additions = ActionController::Base.log_process_action(payload)
status = payload[:status]
if status.nil? && payload[:exception].present?
exception_class_name = payload[:exception].first
status = ActionDispatch::ExceptionWrapper.status_code_for_exception(exception_class_name)
end
additions << "Allocations: #{event.allocations}" if event.respond_to? :allocations
message = +"Completed #{status} #{Rack::Utils::HTTP_STATUS_CODES[status]} in #{event.duration.round}ms"
message << " (#{additions.join(" | ")})" unless additions.empty?
message << "\n\n" if defined?(Rails.env) && Rails.env.development?
message
end
end
def self.setup
# unsubscribe default processors
ActiveSupport::LogSubscriber.log_subscribers.each do |subscriber|
case subscriber
when ActionView::LogSubscriber
self.unsubscribe(:action_view, subscriber)
when ActionController::LogSubscriber
self.unsubscribe(:action_controller, subscriber)
end
end
end
def self.unsubscribe(component, subscriber)
events = subscriber.public_methods(false).reject { |method| method.to_s == 'call' }
events.each do |event|
ActiveSupport::Notifications.notifier.listeners_for("#{event}.#{component}").each do |listener|
if listener.instance_variable_get('#delegate') == subscriber
ActiveSupport::Notifications.unsubscribe listener
end
end
end
end
end
# subscribe this class
SilentLogSubscriber.attach_to :action_controller
SilentLogSubscriber.setup
Make sure to load modified modules e.g. in config/application.rb after loading rails:
require_relative '../lib/logger'
require_relative '../lib/silent_log_subscriber'
Finally configure excluded paths:
Rails.application.configure do
config.logger_exclude = ->(path) { path == "/health" }
end
As we're modifying core code of Rails it's always good idea to check original classes in Rails version you're using.
If this looks like too many modifications, you can simply use lograge gem which does pretty much the same with few other modifications. Although the Rack::Loggger code has changed since Rails 3, so you might be loosing some functionality.
#neil-stockbridge 's answer not worked for Rails 6.0, I edit some to make it work
# selective_logger.rb
class SelectiveLogger
def initialize app, opts = {}
#app = app
#opts = opts
#opts[:silenced] ||= []
end
def call env
if #opts[:silenced].include?(env['PATH_INFO']) || #opts[:silenced].any? {|silencer| silencer.is_a?( Regexp) && silencer.match( env['PATH_INFO']) }
Rails.logger.silence do
#app.call env
end
else
#app.call env
end
end
end
Test rails app to use it:
# application.rb
config.middleware.swap Rails::Rack::Logger, SelectiveLogger, :silenced => ["/remote/every_minute", %r"^/assets/"]
Sprockets-rails gem starting from version 3.1.0 introduces implementation of quiet assets. Unfortunately it's not flexible at this moment, but can be extended easy enough.
Create config/initializers/custom_quiet_assets.rb file:
class CustomQuietAssets < ::Sprockets::Rails::QuietAssets
def initialize(app)
super
#assets_regex = %r(\A/{0,2}#{quiet_paths})
end
def quiet_paths
[
::Rails.application.config.assets.prefix, # remove if you don't need to quiet assets
'/ping',
].join('|')
end
end
Add it to middleware in config/application.rb:
# NOTE: that config.assets.quiet must be set to false (its default value).
initializer :quiet_assets do |app|
app.middleware.insert_before ::Rails::Rack::Logger, CustomQuietAssets
end
Tested with Rails 4.2
Rails 6. I had to put this in config/application.rb, inside my app's class definition:
require 'silencer/logger'
initializer 'my_app_name.silence_health_check_request_logging' do |app|
app.config.middleware.swap(
Rails::Rack::Logger,
Silencer::Logger,
app.config.log_tags,
silence: %w[/my_health_check_path /my_other_health_check_path],
)
end
That leaves the log_tags config intact and modifies the middleware before it gets frozen. I would like to put it in config/initializers/ somewhere tucked away but haven't figured out how to do that yet.