I have no idea what I have done here, but I have attempted to get one controller in Rails to queue a job onto Resque, which then a worker connects to and does the heavy lifting (I.E. comparisons, database entries).
However, the tasks are not even running, since there are no clear instructions for setting Resque up.
Copy and paste's below:
Also available in Gist format!
This is the exception line from Hoptoad:
NoMethodError: undefined method 'perform' for Violateq:Module
This is the contents of the "worker" file:
module Violateq
#queue = :violateq
def perform(nick, rulenumber)
# Working for the weekend!!!
puts "I got a nick of #{nick} and they broke #{rulenumber}"
#violation = Violation.new(nick, rulenumber)
puts "If you got this far, your OK"
log_in(:worker_log, {:action => "Violate d=perfom", :nick => nick, :rulenumber => rulenumber, :status => "success"})
#rescue => ex
# notify_hoptoad(ex)
# log_in(:worker_log, {:action => "Violate d=perfom", :nick => nick, :rulenumber => rulenumber, :status => "failure"})
end
end
This is the contents of the "web_controller" file:
class IncomingController < ApplicationController
require 'mail'
skip_before_filter :verify_authenticity_token
def create
message = Mail.new(params[:message])
# Push the message into the queue
Resque.enqueue(Violateq, message.from.to_s, message.subject.to_s)
log_in(:endpoint_log, {:action => "IncomingController d=create", :subject => message.subject, :message => message.body.decoded})
render :text => 'success', :status => 200 # a status of 404 would reject the mail
rescue => ex
notify_hoptoad(ex)
render :text => 'failure', :status => 500
end
end
Thank you very much for your time, and if you would like any more information, please do not hesitate to contact me,
Luke Carpenter
Fixed.
Changed def perform to def self.perform
Then it worked
Thanks,
Luke Carpenter
Related
I'm new to ruby and I'm trying to re-structure my script which adds some servers to zabbix monitor etc.The issue that I'm facing is below:
zbx = ZabbixApi.connect(
:url => 'http://zabbixserver.net/zabbix/api_jsonrpc.php',
:user => 'admin',
:password => 'admin'
)
def createtemplate
zbx.templates.create(
:host => "RealDoc MS Template",
:groups => [:groupid => zbx.hostgroups.get_id(:name => "RealDoc")]
) ..../will create Items, graphs etc...
end
if templateid.empty?
createtemplate
else
puts "Template Exists"
end
When is accessing the createtemplate method it's throwing the following error: undefined local variable or method `zbx' for main:Object (NameError)
well zbx isn't in scope, as it isn't a global. you have a couple options.
either pass it into the method
def createtemplate(zbx)
zbx.templates.create(
:host => "RealDoc MS Template",
:groups => [:groupid => zbx.hostgroups.get_id(:name => "RealDoc")]
) ..../will create Items, graphs etc...
end
if templateid.empty?
createtemplate zbx
else
puts "Template Exists"
en
or you can make it global with a $.
$zbx = ZabbixApi.connect(
:url => 'http://zabbixserver.net/zabbix/api_jsonrpc.php',
:user => 'admin',
:password => 'admin'
)
def createtemplate
$zbx.templates.create(
:host => "RealDoc MS Template",
:groups => [:groupid => zbx.hostgroups.get_id(:name => "RealDoc")]
) ..../will create Items, graphs etc...
end
if templateid.empty?
createtemplate
else
puts "Template Exists"
end
I would do the first option, as global variables should be used sparingly, but in such a short script it probably doesn't matter that much..
It's working with adding the variable to our method def createtemplate(zbx)
, and the same thing when you are calling the methood , you will call it with zbx variable.
There are other questions pertaining to this, but they all seems to be < Rails 4, and what's more, they're not too detailed!
They all talk about creating a module to share these common validations in:
require 'active_record'
module ContactValidations
def self.included(base_class)
base_class.class_eval do
include ContactValidations::InstanceMethods
# model validations
validates_presence_of(:name, :message => 'You must provide a company name.')
validates_presence_of(:street, :message => 'You must provide a company street.')
validates_presence_of(:city, :message => 'You must provide a company city.')
validates_presence_of(:post_code, :message => 'You must provide a company post code.')
validates_numericality_of(:telephone, :on => :create, :message => 'Telephone should be a number with no spaces.', :if => :telephone_given?)
validates_numericality_of(:area_code, :on => :create, :message => 'Telephone area code should be a number with no spaces.', :if => :area_code_given?)
validates_numericality_of(:fax, :on => :create, :message => 'Fax should be a number with no spaces.', :if => :fax_given?)
validates_numericality_of(:fax_area_code, :on => :create, :message => 'Fax area code should be a number with no spaces.', :if => :fax_area_code_given?)
validates_format_of(:web, :with => /^((http)?:\/\/)?(www\.)?([a-zA-Z0-9]+)(.[a-zA-Z0-9]{2,3})(\.[a-zA-Z0-9]{2,3})$/, :on => :create, :message => 'Web address is invalid. Example: http://www.domain or http://domain.', :if => :web_given?)
validates_format_of(:email, :with => /^([a-zA-Z0-9_\-\.]+)#((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/, :on => :create, :message => 'Th email address given is invalid.', :if => :email_given?)
validates_uniqueness_of(:email, :message => 'This email is already given.')
end
end
module InstanceMethods
def telephone_given?
!telephone.blank?
end
def fax_given?
!fax.blank?
end
def web_given?
!web.blank?
end
def email_given?
!email.blank?
end
def area_code_given?
!area_code.blank?
end
def fax_area_code_given?
!fax_area_code.blank?
end
end
end
But I for one have no idea where such a file should be saved. In the lib directory? All files in the lib directory are included, seems a bit wasteful for a module I only want to be included in a two or three models...
Does Rails 4 have an inbuilt way to share validations?
If not, where should I save my custom module?
And just to be super clear, how should I require this module in the models that need to include these validations?
Create the module in app/models/concerns, then include them in your classes with:
include ContactValidations
In this way Rails will automatically load the shared modules and make them available for you to include.
you should also have a look at validates_with
https://api.rubyonrails.org/v6.0.3.3/classes/ActiveModel/Validations/ClassMethods.html#method-i-validates_with
To describe my problem I attach simple Cramp http://cramp.in/ class.
I add some modification but its mainly work like https://github.com/lifo/cramp-pub-sub-chat-demo/blob/master/app/actions/chat_action.rb
class ChatAction < Cramp::Websocket
use_fiber_pool
on_start :create_redis
on_finish :handle_leave, :destroy_redis
on_data :received_data
def create_redis
#redis = EM::Hiredis.connect('redis://127.0.0.1:6379/0')
end
def destroy_redis
#redis.pubsub.close_connection
#redis.close_connection
end
def received_data(data)
msg = parse_json(data)
case msg[:action]
when 'join'
handle_join(msg)
when 'message'
handle_message(msg)
else
# skip
end
end
def handle_join(msg)
#user = msg[:user]
subscribe
publish(:action => 'control', :user => #user, :message => 'joined the chat room')
end
def handle_leave
publish :action => 'control', :user => #user, :message => 'left the chat room'
end
def handle_message(msg)
publish(msg.merge(:user => #user))
# added only for inline sync tests
render_json(:action => 'message', :user => #user, :message => "this info should appear after published message")
end
private
def subscribe
#redis.pubsub.subscribe('chat') do |message|
render(message)
end
end
def publish(message)
#redis.publish('chat', encode_json(message))
end
def encode_json(obj)
Yajl::Encoder.encode(obj)
end
def parse_json(str)
Yajl::Parser.parse(str, :symbolize_keys => true)
end
def render_json(hash)
render encode_json(hash)
end
end
More about what i try to do is in handle_message method.
I try send messages to client in correct order. First publish message to all subscribers, second render some internal info only for current connected client.
For above code client receives:
{"action":"message","user":"user1","message":"this info should appear after published message"}
{"action":"message","message":"simple message","user":"user1"}
Its not synchronized, because of em-hiredis defferable responses, probably.
So I try to synchronized it this way:
def handle_message(msg)
EM::Synchrony.sync publish(msg.merge(:user => #user))
EM::Synchrony.next_tick do # if I comment this block messages order is still incorrect
render_json(:action => 'message', :user => #user, :message => "this info should appear after published message")
end
end
Now, client handle messages with correct order.
{"action":"message","message":"simple message","user":"user1"}
{"action":"message","user":"user1","message":"this info should appear after published message"}
My questions are:
When I comment EM::Synchrony.next_tick block, messages order is still incorrect. What meaning have EM::Synchrony.next_tick block in this example?
Is this good way to handle inline sync with Cramp or EventMachine ?
Is there a better, clearer way to handle it ?
Thank you!
I found solution of this problem, em-synchrony should work inline out of the box by requiring this library:
require 'em-synchrony/em-hiredis'
class ChatAction < Cramp::Websocket
Using EM::Synchrony.next_tick block is bad idea, with big help of em-synchrony community I add em-hiredis 0.2.1 compatibility patch on github
So now handle_message method looks like this:
def handle_message(msg)
publish(msg.merge(:user => #user))
render_json(:action => 'message', :user => #user, :message => "this info should appear after published message")
end
Don`t forget to take this gem from github
gem 'em-synchrony', :git=> 'git://github.com/igrigorik/em-synchrony.git'
Hope it helps someone.
I am writing a small sinatra application that I am integrating with Authlogic (following https://github.com/ehsanul/Sinatra-Authlogic-Template)
Everything works except for when I try to login. I get the following error:
NameError at /login
undefined local variable or method `active' for #<User:0x000001040208f0>
I am including the authlogic gem versus including it as a vendor. So my Sinatra app is not exactly the same as the one on Github.
Any and all inquiries will be MUCH appreciated!! Thanks!
Found out my issue.
Here is the model according to the Github page:
class User < ActiveRecord::Base
acts_as_authentic do |c|
# Bcrypt is recommended
#crypto_provider = Authlogic::CryptoProviders::BCrypt
c.perishable_token_valid_for( 24*60*60 )
c.validates_length_of_password_field_options =
{:on => :update, :minimum => 6, :if => :has_no_credentials?}
c.validates_length_of_password_confirmation_field_options =
{:on => :update, :minimum => 6, :if => :has_no_credentials?}
end
def active?
active
end
def has_no_credentials?
crypted_password.blank? #&& self.openid_identifier.blank?
end
def send_activation_email
Pony.mail(
:to => self.email,
:from => "no-reply#domain.tld",
:subject => "Activate your account",
:body => "You can activate your account at this link: " +
"http://domain.tld/activate/#{self.perishable_token}"
)
end
def send_password_reset_email
Pony.mail(
:to => self.email,
:from => "no-reply#domain.tld",
:subject => "Reset your password",
:body => "We have recieved a request to reset your password. " +
"If you did not send this request, then please ignore this email.\n\n" +
"If you did send the request, you may reset your password using the following link: " +
"http://domain.tld/reset-password/#{self.perishable_token}"
)
end
end
I removed all of the mail methods but my script was failing on the active? method because it was looking for an active column in the users table. Since I am unable to append this column to the table (due to data integrity with another system) I simply told my method to return true
My User.rb
class UserSession < Authlogic::Session::Base
end
class User < ActiveRecord::Base
acts_as_authentic do |c|
end
def active?
return true
end
end
Hope this helps someone!
Is there a nice way to tell AASM that if an exception is raised while processing any assm_event I want that error to be caught by a specific block of code?
eg currently I do something like
assm_state :state_1
assm_state :state_2, :before_enter => :validate_something
assm_state :failed
assm_event :something_risky do
transition :from => :state_1, :to => :state_2
end
assm_event :fail do
transition :from => [:state_1, :state_2], :to => :failed
end
def validate_something
begin
something_that_might_raise_error
rescue
self.record_error
self.fail
end
end
and what I would prefer to do is something like
assm_state :state_1
assm_state :state_2, :before_enter => :validate_something
assm_state :failed
assm_event :something_risky, :on_exception => :log_failure do
transition :from => :state_1, :to => :state_2
end
assm_event :fail do
transition :from => [:state_1, :state_2], :to => :failed
end
def validate_something
something_that_might_raise_exception
end
def log_failure
self.record_error
self.fail
end
and have log_failure be called if something_that_might_raise_exception does raise an exception. Ideally I want to avoid changing AASM so I am safe if I need to upgrade it in the future
If you use SimpleStateMachine you can do:
def something_risky
something_that_might_raise_error
rescue
record_error
raise #reraise the error
end
event :something_risky, :state1 => :state2,
RuntimeError => :failed
I also had this problem. I had two things to do.
Follow the suggestion in this blog http://degenportnoy.blogspot.com/2009/11/event-callbacks-in-aasm.html.
You need to restart your app even if you are working on development mode.