Using Delayed_jobs Gem in Rails 3

Consider we have a long running task like sending emails to large number of users,the user have to wait until the request is completed then only the rails application can accept another request.so it is preferable to run the long running tasks in the background,for that we can use sidekiq or resque or DelayedJob etc.Sidekiq and rescue requires redis,here we are going to use delayedjob.Lets us see how to use delayed_jobs gem in our rails application.

Add the following to your gem file.

gem 'delayed_job_active_record'

Run the bundle install command to install the gems.

The following command will create a table as it is required to have a jobs table for AR backend.

rails generate delayed_job:active_record
rake db:migrate

Then we can use .delay method to process any job in the background.

without delayed_job  

UserMailer.notification_email(self).deliver

Here we are going to remove the .deliver and add .delay to the UserMailer

UserMailer.delay.notification_email(self)


Thats it! now the process will be added to the delayed_jobs table.

But we have to start the jobs,for that use the following command by entering into your application directory. 

script/delayed_job


In staging add gem "daemons" bundle and run rails generate delayed_job.

RAILS_ENV=staging script/delayed_job start

In production add gem "daemons" bundle and run rails generate delayed_job.

RAILS_ENV=production script/delayed_job start

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Installing Ruby on Rails on Linux Machine

You can follow the steps below to install ruby on rails on your linux machine.Open your terminal and follow the steps below.

First we are going to install curl,we will be fetching RVM by using curl.
sudo apt-get install curl

Installing RVM:-
RVM means ruby version manager it is used to maintain multiple ruby versions.It is highly recommended to use RVM  as sometimes you may want to use earlier ruby versions(ex:- 1.8.7,1.9.3) for older projects and current version for the latest projects(ex:- 2.1) and this problem is solved by RVM,you can refer the documentation for other versions and full details .

We can install RVM using the following command.

curl -L get.rvm.io | bash -s stable
In order to source the rvm scripts file we will be using this command. 

source ~/.rvm/scripts/rvm
This command will install the dependencies.

rvm requirements
you can get the list of ruby versions available by using

rvm list known
Now we can install the required ruby version with this command

rvm install RUBY_VERSION
ex:- rvm install 2.1.0
now we can check the ruby version installed by using

ruby -v

If you want to set ruby 2.1.0 as default ruby version then use

rvm --default use 2.1.0

As both RVM and some version of ruby are installed in our machine and we can proceed with installation of rails.
we can install rails by using the following command.

gem install rails

The above command will install the latest rails version,if you want to install some other version of rails you can use

gem install rails -v SOME_VERSION

ex:- gem install rails -v 3.2.11
That's it you can check your rails version using rails -v in your terminal.

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Speed up your ruby-on-rails Application using webp Images

Speed up your Ruby on Rails application using WebP images

What is WebP?

WebP is an image format that employs both lossy and lossless compression. It’s been developed by Google. So far only Google Chrome (+ Android) and Opera support this type of images, as we can show webp images in Chrome and Opera, and png, jpg or gif images in the other browsers.

WebP and Ruby on Rails

After the webp library has been released, I wrote a webp gem – webp-ffi. You can use it to work with webp images in Ruby. Also, two good Ruby gems were released a bit later – sprockets-webp and carrierwave-webp. Sprockets-webp provides a Rails Asset Pipeline hook for converting PNG and JPEG assets to the WebP format. To use it, just add this gem in the Gemfile.

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Affordable Ruby on Rails Programmers Hyderabad India

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Ruby on Rails Programmer Hyderabad India

Panzer Technologies started building Rails sites in 2010, not long after the framework was publicly released so far, and have since created hundreds of dollars worth of sites across the globe, Including global giving us many opportunities to implement Rails to the test.

Ruby on “Rails” is a framework for building websites that can make it more affordable to create your website, for simultaneously offering to improve online business performance and faster development time.

Our developers In general, Rails gives you more “bang for your buck” as a owner of business, without sacrificing flexibility or performance oriented. We have also found, that there are some Businesses for which Ruby on Rails is the perfect choice. Ruby on Rails would be a good choice for your project.
The benefits of Ruby on Rails

Overall, You are the business owner, For the three largest benefits you can expect with Ruby on Rails coding

Cost Effective The speed with which Rails sites can be built and customized, you spend less money to create and maintain the website — without compromising the quality worth, performance, or scalability of your website.
While building Rails websites isn’t “cheap” — typically the bare minimum for a professional-quality Rails site is $8,000 to $10,000 — for larger sites you do stand to gain a much better return on your investment by using Rails.

Quick Launch Sites that would traditionally take 10 weeks to build can commonly be launched inside of 7 weeks with Ruby on Rails programming. This time savings results from a few factors: a leaner code-base (fewer lines of redundant code), a modular design and (re-using existing components rather than building everything from scratch) the availability of existing plugins (reducing the need to build features from scratch).

Custom Changes After site launch, future modifications to your site (e.g., adding new features, making changes to the data model) can be made more quickly and easy navigation for the same reasons noted above.

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Ruby On Rail Development Company Hyderabad India

Panzer Technologies is a leading Ruby on Rails Software Development Company providing custom software development solutions to a variety of business needs in India. Ruby based framework is five to 10 times faster than comparable Java-based frameworks.

Our core competency is providing Ruby on Rails (RoR) software programming, JRuby software development, and service oriented architecture (SOA) software development services and Action web services. In addition, Panzer provides enterprise software development services for enterprise frameworks developed using custom software development methods right here in Hyderabad, India. Panzer Technologies provides enterprise level custom software development services for businesses seeking local software development as an alternative to offshore software development.

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Ruby On Rails Development Company Hyderabad India

Ruby on Rails Developer India

Ruby on rails companies in India are growing on a very fast pace. It has been observed that due to its user-friendly interface and technically sound applications, it is now efficient for the coders and developers to adopt this technology.

“Panzer Technologies” is a ruby on rails development company based at Hyderabad, India. We have a dedicated team of ruby on rails development and we are known for our support for projects.

For Contact:

Panzer Technologies

Call: (203) 208-3081

E-mail: info@panzertechnologies.com

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Hire Ruby On Rail Developer Hyderabad India

Where to Hire Ruby on Rails Developers in India

Ruby on rails development in India has gained a fast pace in the technological field for numerous reasons for many different reasons. It helps web developers in many different ways. Ruby on Rails is perfect for web application programming. Ruby on rails is creating the storms in the web development all over the world.

Panzer Technologies provide the complete Ruby on Rails Development Package in India through our End to End ROR Solutions.

Call: (203) 208-3081

E-mail: info@panzertechnologies.com

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Ruby on Rails Developer India, Hyderabad – Panzer Technologies

Ruby on Rails is essentially the combination of Ruby programming language and web programming framework named Rails. Ruby was developed in the mid 90′s and has become one of the most opted web app programming languages. Rails, on the other hand is a framework developed in 2004 by David Heinemeier and was written in Ruby.

Ruby is an object oriented programming language. Rails, built in the Ruby language, is a comprehensive open source framework for developing database supported business applications, versatile mobile applications and dynamic websites using the model view controller (MVC) architecture.

Ruby on Rails Developer in USA and India

Panzer Technologies has much to offer in the arena of ruby on rails development in USA and India, as it has experienced and expert rails developers, who know the nitty-gritty of ROR development. Expert ROR Developers helps you to reduce Ruby on Rails Developer price and time.

Why Ruby?

• Easy to learn
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• Rich libraries
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• Helpful community

Ruby is

• A High Level Programming Language
• Interpreted like Perl, Python, Tcl/TK.
• Object-Oriented Like Smalltalk, Eiffel, Ada, Java.

Ruby on rails development is the most popular Ruby application development framework because it helps in developing web apps more easily and within a shorter period of time. It also the foremost option among the vast Ruby developers’ community.

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Panzer Technologies is Right Company for Web Development Applications

Are looking for developing a database backed web application that too with no asset on OS and have a range of database and web servers? With powerful databases and web servers with any OS to build web applications with continuous productivity Ruby on Rails (ROR) is one of the best technologies for developing database web applications.

The Ruby development team at Panzer Technologies has intimate knowledge of developing ROR based applications. We help businesses create robust and flexible ROR applications that are rapidly developed, feature-rich, and scalable and integrate seamlessly with third party applications. Call (203) 652-7866.

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