Ruby on Rails Making Programmers Happy


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Imagine what you could build if you learned Ruby on Rails…

Learning to build a modern web application is daunting. Ruby on Rails makes it much easier and more fun. It includes everything you need to build fantastic applications, and you can learn it with the support of our large, friendly community.

Released November 5, 2020

You’ve probably already used many of the applications that were built with Ruby on Rails: Basecamp, GitHub, Shopify, Airbnb, Twitch, SoundCloud, Hulu, Zendesk, Square, Cookpad. Those are just some of the big names, but there are literally hundreds of thousands of applications built with the framework since its release in 2004.

Ruby on Rails is open source software, so not only is it free to use, you can also help make it better. More than 5,000 people already have contributed code to Rails. It’s easier than you think to become one of them.

Optimizing for programmer happiness with Convention over Configuration is how we roll. Ruby on Rails has been popularizing both concepts along with a variety of other controversial points since the beginning. To learn more about why Rails is so different from many other web-application frameworks and paradigms, examine The Rails Doctrine.

Rubyro >By Yury Kaliada Dec 1, 2020 4 Mins Read

But only this way allows us to deliver high-quality products and build trust between our Team and Clients.

So let’s get down to the interview itself. All questions for hiring Ruby on Rails developer can be split into 3 groups:

  • Generic questions
  • Ruby questions
  • Ruby on Rails questions

Let’s have a look at each group.

Interview Questions on Ruby on Rails

Ruby on rails interview questions are where we discuss the basic understanding of programming processes and the ability to explain them. It tells a lot about the general level of the applicant.

Object Oriented Programming

Object Oriented Programming is the core thing, without which we wouldn’t be able to move forward. So knowing answers to these very basic questions is a must.

Business Applications

Besides OOP, it is important to have experience and skills in working with Business Applications. Since Rack is one of the most popular interfaces for Ruby, we prefer to ask questions about it.

Ruby Gems

And finally, no discussion about Ruby would do without the discussion of Ruby Gems. This is a perfect chance for the applicant to not only prove basic knowledge but also share his personal opinion and development preferences.

Ruby on Rails questions

Since Rubyroid Labs is focused on Ruby on Rails development, we pay great attention to this part of the interview.

It is important for us that the developer is experienced with Ruby on Rails and already has at least a few projects created with its help. We start from basic questions.

Ruby on Rails Basics

This list helps to figure out the general level of the developer. With its help, we can see not only his experience but also how well he understands all the processes and peculiarities.

Routing, Controllers and Views

After the initial part, we get into more details.

Active Record

And finally, we discuss active record as an important part of Ruby on Rails.

Generic questions

After the discussion of Ruby and Ruby on Rails is done, it is part to switch to more generic, but no less important questions.

Be sure that you check another stunning article:

Security Issues

We pay great attention to security and stability of our applications. That is why it’s important to ask the basics of information security.

Refactoring Skills

Refactoring is another big thing, which shows the real knowledge and technical level of the developer.

This way we discuss this part of development as well.

Personal Qualities


And finally, it is not only technical knowledge and skills that are important for us. Rubyroid Labs is like a family, so we really want to make sure that the new developer will fit in smoothly and will be happy with us.

Here are some questions to understand the applicant personality and his thoughts about own future:

This is already a pretty big list of questions, right? Besides that, we make sure the applicant has an advanced level of English. Our company offers outsourcing services and cooperates with a large number of international companies.

So it is important for us to make sure all our employees speak decent English and can communicate with the client fluently. And finally, besides the theoretical part, there’s also a practical task. But we would keep it as our small secret and maybe tell you about it someday later.

We Can Help You Build Outstanding RoR based Applications

What can be done with Ruby On Rails ?

BASED ON MVC ARCHITECTURE

ROR was created using Model View Controller architecture that helps with development by dividing an app‘s function into separate parts in order to allow for improved user interfaces.

EXTENSIVE LIBRARIES

Large libraries make everyday programming tasks like session management a breeze with ROR. There are modules to help with just about every common aspect of programming too, making ROR a great choice for developers.

NO XML CONFIGURATION FILES

Unlike other frameworks, Ruby on Rails doesn‘t use XML configuration files. Instead, programmers are able to specify configuration parameters using simple programming conventions.

GREAT TOOLS INCLUDING DETAILED ERROR LOGS

Ruby on Rails is packed full of great development tools that not only help to make projects easier to develop but also better apps in general. Take for example Active Record, which is Ruby on Rails‘ Object/Relational Mapping (ORM) feature. It acts as an interface between tables in a database and the ROR program that interprets/manipulates the data, making the whole process faster and more efficient.

To help with debugging code, ROR records detailed error logs to help make coding easier for even the top ROR programmers. The main drawback to using ROR is that it requires a good base knowledge of the underlying framework in order allow a developer the power to truly customize a project. Many ROR developers for hire who lack the appropriate knowledge have found themselves unable to complete apps to the standards that their project managers require. If you are looking to hire ROR developers for a large or complicated project then you would be well advised to employ the services of a large development team such as DevTeamSpace. We have all the experience and expertise needed to make your app a glowing success.

Benefits of Ruby On Rails

It’s easy

With its huge libraries and a vast range of tools and plugins, ROR is a powerful choice for developers throughout the USA and elsewhere. Granted the framework does require programmers to have a good level of background knowledge, but this is something any project manager should insist on from their developers anyway.

It’s Simple

Provided you have a good ROR developer or dev team working for you, Ruby on Rails is an excellent framework for your project. It utilizes the Convention over Configuration (CoC), and the Don’t Repeat Yourself (DRY) principles, all of which help developers save time by reducing the amount of code that needs to be written.

It’s FLEXIBLE

ROR is designed to be a flexible framework. With it, a good development team has an enormous amount of power at their fingertips, like the ability to migrate databases to any other platform with ease. ROR is also created in such a way as to make the construction of apps more intuitive to how programmers code, something which is an enormous help to us developers.

My boyfriend says Ruby on Rails is not real programming. That’s what I do as a developer. Should I dump him?

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Answer Wiki

He is correct, though. Using Rails is not «real programming».

By «real programming» he probably means writing new protocols or artificial intelligence applications or something. Preferably with lots and lots of lovely recursive algorithms. Rails ain’t that. Rails is a framework for making web apps.

Then again, most things aren’t «real programming». What I do all day certainly isn’t. I don’t let that get me down. If someone points out that I’m not a «real programmer», I’ll compliment them on their powers of observation. But then again, I don’t present myself as a «real programmer»; I’m jus. (more) Loading…

Why Use Ruby on Rails for Your Product

Over fifteen years have passed since the introduction of the Ruby on Rails technology. This server-side web app framework was created using the Ruby programming language in 2005. Today, there is a great variety of software development tools. Nevertheless, this framework, which is often called RoR or Rails, has achieved a significant popularity leap.

What you should know about RoR

If you want a short but credible description of the technology, a few complimentary words like flexible and agile could be used. However, they are unable to convey all of Ruby’s benefits hidden under the hood. Many famous brands and startups including Basecamp and Kickstarter have chosen the framework for their needs. Numerous development companies can be found in hundreds of cities around the globe. So, the search for RoR London or San Francisco will be as simple as typing the request in a browser. Many engineers deem it a convenient and elegant solution for their undertakings. And here is a short insight into the technology.

  • The difference between Ruby and Ruby on Rails lies in the purpose. Ruby refers to a general-purpose programming language like C++ or PHP. It is used to create versatile software. However, building a fully functional web application with Ruby is a rather intricate task. For this reason, Rails, a web framework built on this language, should be the option.
  • MVC is an essential term associated with this technology. It refers to the Model-View-Controller principle, which separates the app work into three subsystems. Each subsystem is responsible for a particular set of actions:
    • Model – relationships between objects and the database, as well as validation, association, transactions, business logic, etc. In a typical Rails project these days, the model layer is split into models (persistence, database, associations, validations) and services (encapsulates business rules and orchestrates usage of models).
    • View – data introduction in a particular format, interaction handling and data collection from users.
    • Controller – handing over data from views.
  • The framework’s philosophy is exposed via the convention over configuration paradigm. You do not have to spend hours on configuration from the outset. However, any adjustments might take some time since conventions are what the Rails’ magic is based on.
  • You are able to accelerate the web app building process and significantly reduce the number of code lines compared to using a regular Java framework.
  • Three default environments including production, development, and testing are available at Rails. It means that the entire software development cycle is optimized.

Pros and Cons of Ruby on Rails

A product owner needs to estimate the strengths and weaknesses of a particular technology to decide whether it is a fit. Some solutions may be good in the short run, while others prove efficiency from the long-term standpoint. Hence, a good understanding of Ruby on Rails advantages and disadvantages is vital.

Time and cost efficiency

Time constraints and a limited budget are regular characteristics of any startup and suitable conditions for using RoR. The framework has several aces in the hole to boost your pipeline and save money.

  • Rails is open source. It means zero costs for the framework itself.
  • One of the biggest Ruby advantages inherited by RoR is the ecosystem. With a package management tool called RubyGems, you get access to the thousands of gems. You may treat them as libraries, software snippets, or add-ons but their gist is to provide ready-made solutions for certain tasks or problems. For example, you do not need to invent a Ruby interface for the Twitter API for your app because it’s already available for free here. In practice, it means that you can spend your time on some fundamental things and accelerate the pipeline.
  • Ruby on Rails MVC pattern is another timesaving factor. Parallel development lets you speed up the engineer teamwork by three times. For this, you need to separate the app business logic as much as possible. And that’s one of the Ruby on Rails advantages: it provides ready-to-use baskets to implement the separation. As a result, you get a scaffold for further work. Moreover, that excludes such unfavorable outcomes as a not very readable and redundant code.
  • Consistency is also a strong point associated with RoR. It foresees code readability and robust structure within the entire development cycle. So, any future code updates will be fast and seamless, which is another time-and-cost-saving facet.

Rescue Rubyists

The size of a community of a particular technology shows how popular and in demand it is. Rails boasts one of the most dynamic and collaborative communities. Its members are known as Rubyists. They contribute to the RoR ecosystem by creating gems and explaining some intricacies associated with Ruby on Rails software development. Rubyists are helpful and approachable people ready to assist you with any relevant problem, as well as suggest useful documentation, plugins, modules, etc. Therefore, they are worthily considered as one of the fundamental advantages of Ruby on Rails.

Scalability

This term denotes the capability of an app to handle the raised load – tons of requests per minute sent by multiple visitors. In this regard, Shopify is a good example of RoR scalability. For five years, this ecommerce platform, which is one of the oldest Rails apps, has scaled to 80k requests per second. Of course, the framework itself cannot ensure great scalability without compatible architecture and deployment strategy. Still, the RoR scaling potential is advantageous.

Security

The must-read for anyone building a Rails app is this guide describing common security problems including OWASP Top Ten and how to avoid them. Moreover, among other Ruby on Rails benefits, you can select from numerous dedicated gems like brakeman, akami, and so on to protect your app from security vulnerabilities.

The framework has some weak points that mostly reveal when compared to alternative technologies or depending on the gems used. Therefore, these are not actual cons but possible difficulties.

Documentation

Despite the vast community and tons of information available online, the lack of documentation (especially regarding particular gems) can be a real frustration.

Runtime speed

A disclaimer is needed here because the runtime speed can be both Ruby on Rails pros and cons. The app built with Rails is likely to be slower than the app built with Node.js or another technology suitable for memory-intensive tasks. Meanwhile, if compared with the Java framework like Spring, RoR will be more performant. In general, you’re unlikely to face strong bottlenecks in performance with Ruby on Rails. Read more about how the technologies compare in our blog posts: Ruby vs. Java, Python vs. Ruby vs. Node.js, and Ruby vs. PHP.

Who uses Ruby on Rails

Rails is written in the language created “to make programmers happy” (Yukihiro Matsumoto). It means that many programmers got converted into Rubyists for technical reasons. Some developers were attracted with the framework relevance for rapid development and building scalable apps. That’s for engineers. And what about companies that use Ruby on Rails? Apart from the already mentioned Shopify, there is a plethora of websites built with RoR.

GitHub

On August 15th, this popular web-based hosting service celebrated the end of the upgrade to Rails 5.2.1. GitHub started in 2008 and was entirely built with RoR. So far, it remains one of the big companies that use Ruby but there’s also more Go, Java, and even some Haskell being deployed for services.

Crunchbase

The tech stack of this business information platform consists of different technologies including Ruby on Rails on the backend. Crunchbase is another early adopter of the framework. It has used it since 2007.

Dribbble

It is known as an online community where designers and imaginative creators share their shots and illustrations of whatever they do. Dribbble was built with Rails in 2009 and has kept loyally to the framework so far. Beginner programers can encounter numerous guides on how to build a Dribbble clone with RoR.

These are only a few examples of what Rails was used for. At the same time, the framework has vast capabilities for web app development.

What can you build with Ruby on Rails?

Fintech startup

Entrepreneurs engaged in financial technologies projects should be unaware of RoR applicability in this regard. The framework allows you to cope with the main development challenges of a fintech app and deliver a successful product. Examples include Squareup, a payment service, Fundera, business-to-business lending service, and many others. Here you can learn more about RoR for fintech products.

Software as a Service

The benefits of Ruby on Rails make it a perfect option for software as a service. Zendesk is a good example of successful SaaS built with the framework. This cloud-based customer support platform is trusted by over 200K customers all over the world. Perhaps, this use case will convince you to choose Rails for your next SaaS.

Ecommerce app

When the context includes both RoR and electronic commerce, Shopify is the first thing coming to the mind. However, it is only one example of many others like Etsy, Brandless, Instacart, and so on. Rails offers a wide ecommerce-oriented ecosystem consisting of dedicated gems, fully-functional ecommerce frameworks, and customer management systems.

Communication-oriented app

Did you know that Twitter was initially built with Ruby on Rails? Some years later, this communication app pivoted from a traditional web framework to the distributed message broadcasting system (mostly written in Java). Other examples of RoR applicability for building a communication-oriented platform are Basecamp and Dribbble.


Media hosting and streaming app

Here is another type of app you can build with Rails. Slideshare is known as a large content sharing community, where users can share versatile sorts of presentations and infographics. It was created using RoR just like Hulu, a video streaming platform.

What you should learn is that Rails is the framework, which lets you build almost any web app. Here you can find more use cases in this regard.

Why use Ruby on Rails

Your project will benefit from using the framework if:

  • your goal is a regular web app
  • you have long-term expectations
  • you need community support
  • you are unlikely to expect frequent revisions of functionality, as well as changes to the project development requirements
  • no fixed app concept is present
  • a quick prototype is needed.

On the other hand, you’re unlikely to opt for RoR in the following cases:

  • you have your technical requirements strictly set
  • no immediate functionality revisions are expected
  • you do not have to worry about a prototype
  • RoR app dev is not what your team of engineers prefers.

Railsware’s choice

RoR means not only a stable programming environment. It contributes to the constant evolution of other technologies. Many companies that use Ruby on Rails admit its influence on other popular platforms like Java, PHP, Node.js, etc. A desire for perfection triggers competitors to improve themselves and optimize tools for app deployment, dependency management systems, template engines, package managers, preprocessors, and others. The teach-and-learn capabilities are also enormous and here is the best place to learn Ruby on Rails.

The Railsware team decided on the framework long ago. Besides, as you can see, technology has contributed to not only the basic principles of our company but even its name. And this choice was based not on the RoR popularity but rather on its ability to implement ideas in a fast and cost-effective way. That’s what makes both clients and developers feel happy.

6 Ruby Best Practices Beginners Should Know

The Ruby language was developed by Yukihiro Matsumoto (“Matz”) in 1995. The language was designed to be object-oriented, intuitive, and easy to learn to optimize for developer time. As “Matz” once said:

“…in fact we need to focus on humans, on how humans care about doing programming or operating the application of the machines. We are the masters. They are the slaves.”

In this tutorial, we’ll explore Ruby best practices to ensure our code is in line with Matz’s principles of being legible, modular, and concise.

1. Use case/when conditionals instead of lengthy if statements

Let’s say we are writing a program to ask for a student’s major and answer with an appropriate response. We have one variable, major, and we want to check its value and respond. We may be tempted to use an if statement with multiple elsifs . Avoid this temptation; there is a more concise way! The case/when statement allows you to check whether a variable is set to many different values and is particularly useful when responding to user input. Check it out:

The case/when statement is a concise way of handling a variable with multiple possibilities.

2. Avoid for loops and use the each method with a block

While for loops are common and accepted in most other programming languages, in Ruby, we should almost universally avoid them. For loops are not as space efficient as using the each method and passing it as a block because they store the variable that represents each element. See the following example:

Now, after the loop is complete, if we check what elem is equal to:

We didn’t actually want to store the value of elem , we just wanted to use it as a name placeholder for the current element while iterating. Instead, we use the more efficient each method with a block. (A block is Ruby’s version of an anonymous function or lambda). It is much better practice to write the above code as follows:

Or even better, on one line:

Now, if we check what elem is:

Ahhh, that’s better!

3. Use the splat (*) operator for methods with a variable number of inputs

The main thing the splat operator is used for is grouping together a collection of inputs into an array. Before we dive into specifics of why it’s used, let’s see it in action.

People can feel many different things or they can just feel one thing. Because we have a variable number of inputs, we use the splat operator, which groups all of the inputs after the defined inputs into an array. The splat operator also has some other fancy use cases. Let’s take a look at one of them.

(Yes, that’s Pablo Picasso’s full name!) Whenever we see a splat, we can just think of it as a way of wrangling a collection of an unknown number of items into an organized array so we can work with it more easily.

4. “Monkey patch” pre-defined methods so they work better for our specific needs

Let’s imagine we are designing a chess game. Our board is represented as an array of arrays, where each inner array is a row on the board. If we wanted to access a piece, we would get it like so: board[row][column] . We are going to be accessing pieces many times, and it would be easier if we could just call it like this instead: board[row, column] . So let’s take matters into our own hands and redefine the [] method!

We were able to do this because [] is really just a method on the Array class and our Board class inherits from Array. It is also easier to see that [] is just a method if we rewrite array[i] as array.[](i) . Now, we can read what any piece is by just calling board[row, column] . But what if we also want to be able to move a piece by changing a value of board like this: board[row, column] = new_piece . To do this, we have to overwrite the []= method. See below.

Ruby is ultra object-oriented, which makes it quite easy to rewrite predefined methods so that they work better for us. Remember Matz’s ultimate goal? Keep the developer happy!

5. Use double bang to determine if a value exists

The bang symbol (!) turns any truthy value into false and any falsey value to true. Suppose we were trying to determine if a person has a middle name.


This one is a bit tricky, so let’s walk through it step-by-step for the above examples. For the George Washington example, @m > Nil is not equal to false, but it is a falsey value. So, if we had just returned @middle_name without the !! , we would have gotten nil, not false like we wanted. Therefore, we use one bang to turn nil into true and then another bang to turn true into false. See below:

Likewise, Barack Obama’s middle name is “Hussein”, which is a truthy value. In the method has_middle_name? , we don’t want to return @middle_name , we just want to return true if @middle_name is truthy. See below for a walk through of how has_middle_name? works for the Barack Obama example.

If we hadn’t used a double bang, we would have had to use a wordy if statement to check if @middle_name is nil or not. The double bang is an elegant way of creating the common “does some variable exist?” method.

6. Use symbols instead of strings in hashes

Symbols are a Ruby specific data-type, denoted like so, :symbol. Symbols are similar to strings, except they are immutable and are used to name variables. They should be used whenever you are storing the name of something that does not have to be mutated. They are more efficient than strings because they are stored in one spot in memory.

As we can see in the example above, when we set two variables equal to the same symbol, they point to the same address in memory. However, when we perform the same operation with a string, this is not the case. Thus, we should use symbols for improved space efficiency when we do not need to mutate its value. Now, let’s examine how we can use symbols as hash keys instead of strings. Let’s say we are trying to count how many of each plant we have in our garden and are keeping track in a hash. Instead of using strings like so,

we should use symbols:

Or even better, Ruby hashes that have symbols as keys can be written more concisely like so.

And when we’re trying to count rhododendrons and sneezeworts, it’s crucial that we are concise!

Conclusion

By keeping our code succinct and object-oriented, we can write programs in line with Matz’s philosophy that the development process should first and foremost be optimized for the developer, not the computer. And that’s one of several ways to know if you’re a bad developer or not. We are more efficient and happier if we are not bogged down with syntax and mundane specifics. When we are happier, we write better programs! Thank you Matz for keeping us happy!

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Redis is an in memory based key value data structure server. They keywords here are in-memory (RAM) and Key – Value (Hash). RAM being the easily accessible memory location for your CPU, and hash being the most accissable data-structure a combination of both makes it lethal. It was developed by an Italian developer named Salvatore Sanfilippo, in…

Custom Loggers

Custom loggers are useful if you wish to have a separate log file for different moving parts of your Rails application. This would make your logging more efficient and readable. (Eg: a file to record all the API request you received). Let’s have a look on them! Note: This could cause an issue of log files…

Managing threads with Queue and SizedQueue

Threads in Ruby To make our applications do multiple things faster at the same time, we can use Ruby threads. For a long-running application, re-using a pool of such threads can provide great performance benefits. Thread pool is a way to have a fixed set of threads doing the work, instead of creating new ones each time.…

Make unit tests great again – Integrate Jasmine into Rails

Jasmine is a framework to write tests for the Javascript code in the Behaviour Driven Development (BDD) style. In this article, you will learn how to integrate Jasmine into your existing rails application and how to write clean and beautiful unit tests. Let us make tests great again! Install Jasmine To make Jasmine available…


Readability of text using odyssey

When you are writing something like article, text, document etc you are focusing on readability. If you are not then you should. As readability influence how a reader can read and understand the content, how you are presenting the content etc. It would also influence how much likely one is to share your article as…

to_json vs as_json in Rails API

Recently we have been working on Rails API. During that time, we were curious about the difference between as_json and to_json. In this article, we are sharing the difference we learned. to_json in Rails API Let’s discuss how we started out building our APIs using ‘to_json’. to_json will return JSON string representing the hash. Option…

Setup your rails application with one command

Generally setting up a rails app is running some same set of commands, for example installing gem, creating database, loading schema and start rails server.

We can create a script and run it to setup our application since Rails 4.2 a bin/setup file is generated by default. Here is the example of setup script.

Authorization with Pundit gem

Security is an important aspect of application development. Two main components of security are Authentication (Who are you?) and Authorization (are you supposed to be here?). Authentication verifies the user’s identity while authorization verifies whether that user has access rights on certain resources to perform actions on them. Two popular gems for authorization in…

Deploying Rails application on AWS, using Nginx, Puma and Mina

In this tutorial we are going to setup an AWS EC2 instance for deployment of rails application. Server Setup Following is the setup instruction for ubuntu 16.04 using ruby 2.4, Postgres 9.6 and rails 5. Installing Ruby Setting up dependencies for ruby.

Next step is to install ruby using RVM.

/ . rvm / scripts / rvm

[Tip] Mina: Find last git commit released

A project that we were handling hadn’t had a deployment in some time. So we were confused on what all commits were going to go to production ( bad karma for us for not keeping a release or change log). We use mina for all our deployment as we found it to be faster that…

Taking screenshots of webpages using Ruby

Recently we have been working on taking screenshots for web page while generating reports based on that website. During this endeavor, we came across some tools to achieve that. We are sharing the information we gathered here. The tools that we will discuss for screencapture, in Ruby, are: PhantomJS Screencap gem Webshot gem Screencap…

Difference between Date, Time and DateTime

Date and time are one of the most important aspects which every coder has to deal with in Ruby. Well, let’s get to know how we keep it up alive and functional. There are 3 different classes in Ruby that handles date and time. They are Date, Time and DateTime. Date and DateTime classes are…

Enumerator: When to Use and Why are they so special?

In this post, we’ll take a look at the basics of Enumerator, When to use it and Why they are so special. So let’s begin! As the name implies Enumerator is used for iterating over a collection of items. It allows both internal and external iteration. So how do we Create an Enumerator? There are 3…

Rack::Attack – secure you rails app for the real world

Are you worried about the security issues in your Rails app? The rack-attack gem, can help you. Rack::Attack is a rack middleware which provides security to our rails application. It allows us to safelist, blacklist, throttle and to track requests. If the request matches any safelist, it is allowed. If the request matches any blocklist, it is blocked. If the…

ReactJS for Beginners | A Step by Step Approach

There are many problems while building large applications with data that changes over time. To solve this ,I suggest checking out ReactJS. React lets you express how your app should look at any given point, and can automatically manage all UI updates when your underlying data changes. React is one of the most popular JavaScript front end libraries…

Fixtures in Rails Tests

Fixtures are very much relevant in Rails testing. Fixtures are a way of organizing your test data.Testing the application helps to debug it more efficiently and ensures the desired functionality to the application. Let’s have a look on them. It is used to manage the test data. It tests against the real data and is…

Spice up your boring IRB (Irbtools)

IRB stands for interactive ruby, it is a tool for interactively executing ruby expressions read from a standard input. To invoke it, type irb at the shell or command prompt, and begin entering Ruby statements and expressions. But it has some limitations. A solution to this is called ‘irbtools‘, which make using irb easier and…

PStore, a little known feature in the standard library

PStore(persistent store) implements a file based persistence mechanism based on a Hash. It writes Ruby objects to an external file so it can access easily if needed. If an I/O error occurs while PStore is writing to its file, then the file will become corrupted.You can prevent this by setting pstore.ultra_safe = true. Also, it…

Disabling transaction block during migration

Migrations are used to modify your database. By default, all migrations run inside a transaction. You can disable the transaction during migration. Let’s have a look on how to disable transaction block! Migrations can manage the evolution of a schema used by several physical databases. It’s a solution to the common problem of adding a…

Behind the scenes of hash table performance in ruby 2.4

Ruby 2.4 got released this Christmas with a lot of exciting features. One of the most underrated features in ruby 2.4 is hash table improvements. Before going into details about implementation, let’s first check the benchmark to know how this change gonna affect your ruby application. Some benchmarks are: Getting keys and values of a…

How to format Git log for meaningful information

Git is a wonderful piece of software that makes life easier and more productive for a programmer. But sadly most developers don’t use it up to their full potential so we are going to blog about various simple and advanced usages of git as a series. In the first article of the series, we are…


Kochi : Truly the Queen of the Arabian Sea

Before you set afoot on the land known as the “God’s Own Country”, you can see lush greenery covering up the suburb developed structures and providing that much needed fresh air to breathe. Kochi is a coastal city built on the ethos of communal integrity, cultural unity & truly to love nature. While under the…

Chartkick: data visualization made easy with Ruby

Recently, I’ve been using Highcharts, Google charts and Chart Js for visualizing dynamic data in my projects. But it was difficult to integrate it with the rails application. However, for every problem in Ruby, there is a gem out there to save your day and Chartkick, a Ruby gem exclusively available for data visualization is…

How to write your own Rack m > Beginners By anjana January 9, 2020 3 Comments

Rack is a Ruby package which provides an interface for a web server to communicate with the application. It is very easy to add middleware components between the web server and the app to customize the way your request/response behaves. The middleware component sits between the client and the server, processing inbound requests and outbound…

Using gmail to send email in Ruby on Rails

Emails can be sent from you Rails application through many services like mandril, sendgrid, amazon SES. In this article, we would be explaining how we can send email using a Gmail credentials. Even though we can’t use it in production scenario due to the 500 email per day limitation, it would help us in prototyping…

Materialized Views: Caching database query

As a part of our database optimization series, this article is related to creating materializing views in the database. Before starting with a materialized view, let’s talk about database views. What is a database view? A database view is a stored set of queries, which gets executed whenever a view is called or evoked. Unlike the…

Introduction to generating JSON using PostgreSQL

Introduction One of the major requirements for any online business is to have a backend that either provides or can be extended to provide an API response. Building websites with static HTML and simple jquery ajax is coming to an end. In this era, Javascript frameworks rules the market. Hence, it is a good decision for…

Different ways to run Shell Commands in Ruby

During development of an application, there will come cases when we need to access system command from our program itself. In some cases we just need to know if the status was complete, in some cases, we also need to know the output the application returns.But before we start, let’s find out what Shell Commands…

New binding.irb introduced in ruby 2.4

Ruby 2.4 will have the feature to introduce a REPL session, using IRB, in between your code execution for better debugging. IRB, which stands for Interactive Ruby, is the standard REPL which is bundled along with ruby. Pry is a popular alternative for IRB, which has many developer-friendly features like tab compilation and syntax highlighting.…

Deploying S > DevOps, Rails By coderhs November 7, 2020 Leave a comment

Sidekiq is a popular background processing tool available in Ruby. It’s fast, robust and reliable compared to other solutions out there. Sidekiq run as a process outside of rails (but including the rails environment), which means it doesn’t start when you start your rails application. During development, we start sidekiq in another terminal (or tab) using…

Different types of Index in PostgreSQL

This is part two of our PostgreSQL optimization series. You can read the first article where we discuss when to index here. PostgreSQL uses a different set of algorithm while indexing tables, each type of algorithm is good for a certain set of data. Here we will be discussing the various algorithms available and when…

Ruby on Rails: Virtues and challenges

Programming languages are tools that help companies grow and fulfill their goals. Like any instruments, these need to be adapted to the scope of the work, and there is no universal “best” language for any job, all have advantages and disadvantages, although most come with an army of developer fans.

Table of Contents

Why consider Ruby on Rails?

Ruby on Rails (RoR), or simply Rails, is a web apps framework based on the Ruby language that has affectionately been compared to a smart car, meaning it is practical, gets the job done in a small-scale environment, but it is not very fast or suitable for heavy duty.

However, if you are looking for a tool that can get you up to speed with building and testing a prototype for your website or web app in no time, hence valuing productivity and the ability to make changes on the fly, this might be an option worth considering.

Currently there are over 800K websites built using this technology, which could sound impressive, but it is only a fraction (0.3% of websites) when compared to WordPress’15.8M websites. However, when considering examples, which include AirBnB, CouchSurfing, Fiverr, Kickstarter and Github, the usability of the framework shines through.

Below, the experts from Iflexion find out the best features of the Rails framework and identify some of the most important shortcomings, to create a complete picture.

Arguments in support

Easy-to-use
According to its creator, Ruby on Rails was designed to make the programmer happy. This is achievedwith the elegant way of coding, which is close to natural language and requires fewer syntax rules that PHP, for example. One of the driving principles of coding in Ruby is DRY (don’t repeat yourself), which means that code can be easily recycled, repurposed, keeping the workflow at a high speed. This feature is important for the business owner commissioning the work, as it can translate in time and cost savings – an important aspect, especially for start-ups.

Excellent for prototyping
Rails offers an out-of-the-box environment that has basic modules and a myriad of options to help build a business app from scratch. The process involves playing with gems as LEGO pieces in the sandbox created by Rails. Since Ruby developers are used to designing their own testing code, it follows that there is no need for another team to perform this step. The whole process follows the Agile paradigm, creating a prototype, testing, adjusting, getting feedback and repeating until it meets the business needs. This shortens considerably the time to market and keeps costs down, allowing the idea to be either validated or redesigned.

Convention-driven
The second guiding principle of Rails is Convention over configuration, which means that generally the structure of the web apps will be the same, which is another way to get a team of developers up to speed without the necessity of extensive documentation or explanations from previous teams that worked on the same project. This helps the company to find the best provider without worrying about transfer. Notably, Rails in particular, and Ruby in general, allow a high degree of customization, renaming, and user-defined entities, yet programmers choose to stick to the existing conventions for usability and convenience.

Extensive add-on functionalities in gems
“Gems” is a more poetic name for Ruby libraries, a way of adding a wide range of functionalities to Rails. A gem is part of the Ruby ecosystem and solves a well-defined problem, helping developersavoid re-inventing the wheel for anything ranging from search to pagination, or even SEO. These are similar to WordPress plug-ins and before solving any new problem through code, a developer should check if there is not already a gem doing that. This approach saves time and gives the developer the opportunity to create multiple app versions, instead of just solving a problem like authentication.

Tightly knit community of developers
One of the most valuable assets of choosing Rails is the vibrant community of developers who take great pride in their tools of choice. These people have a specific mindset, the more senior are used to helping novices and the juniors are not shy to learn on their own. Being an open source project, the internal ranking of professionals is given by the solutions offered for free on forums or dedicated platforms. Major cities even have known spots where Ruby developers meet and exchange ideas;those looking to hire the best can just drop in by for coffee.

Drawbacks

Resource intensive
The biggest flaw on Rail’s history is the Twitter story, an app initially build on RoR, currently on Scala, which is Java-based. The change was dictated by the fact that Twitter grew so much it needed a different approach that Rails was not ready to handle. The Rails framework is known to be more voracious on resources, compared, for example, with PHP and some servers refuse to support it. This problem can be fixed by choosing an Amazon, EngineYard or other provider. The takeaway here is to use Ruby on Rails for the incipient stages until you reach stability and change once you get to massive scale, if needed.

Little documentation
As this is an open source project, there is no way of imposing a standard when it comes to documentation, and sometimes programmers need to design tests or dive into code to understand the logic behind certain functions, in order to modify them according to needs. The upside of this is that it makes developers pay attention and even come up with creative solutions while learning.


Time-consuming setup for cloud
Cloud solutions are much more recent than Rails, therefore a bit of adjusting of the framework to the dynamic setting is necessary.J.Higginbotham, a senior RoR developer,explains why this process can be time-consuming if you aim to get all the steps right, also considering the security issues involved. The solution he suggested in 2015 was to off-load the work to a third party until an internal solution is found.

Difficult to find qualified developers
A regional difficulty is to find qualified RoRdevelopers. While in the Valley employers compete by payment, in some areas where there is a solid corporate culture focusing on Java and PHP, these professionals are scarce because there was no demand for such a skill. The best way to identify high quality devs is to follow the steps described in “A Hacker’s Guide to Hiring a Ruby on Rails Developer” by G. Caroll, a RoR engineer.

Conclusion

Ruby on Rails is an excellent framework for designing web apps fast and putting them to the test, polishing, if necessary. Gems offer almost any functionality you can think of and help developers create a working model in notime. Rails emerges as the best option for startups and established businesses. While the first are testing the market and have not yet embraced a well-defined process for their operations,the latter want to try a new approach or launch a new service, without integrating it completely in the existing IT ecosystem. If at some point the web app outgrows the capacity of the framework, it only means it was successful and it is time to choose a new tool for a larger job.

Ruby On Rails Interest Group

The Ruby on Rails Special Interest Group helps members and others to learn full-stack development of apps using hot, high-paying technologies: Ruby (language), Rails (Backend/Database), React (Web Pages), and React Native (App Stores).

I believe that the purpose of life is, at least in part, to be happy. Based on this belief, Ruby is designed to make programming not only easy but also fun. It allows you to concentrate on the creative side of programming, with less stress.

Contents

Goals

  1. Help new programmers get better quickly.
  2. Help existing programmers get better at programming.
  3. Provide a «lurch» forward in your progress.
  4. Show you the way to becoming a Top 1% programmer.
  5. Have you be demonstrably better — from a practical perspective.
  6. Give back to the Ruby community by authoring Codewars.com kata.
  7. Give back to Dallas Makerspace by developing and maintaining applications that support its mission.

We are living in the Golden Age of Learning. Ruby on Rails SIG will not replace existing educational or code practice resources. It will provide structure, goals, and community/mentorship to leverage those readily available resources.

I hope to see Ruby help every programmer in the world to be productive, and to enjoy programming, and to be happy. That is the primary purpose of Ruby language.

SIG Action Items

Initial Prerequisites

Set up accounts

  • lynda.com Free access with a public library card. If your city doesn’t offer access, Grand Prairie & Garland’s library systems do not have res >Online Classes
  • Programming Foundations: Fundamentals — Or equivalent experience, if not a beginner. Approximately 5 hrs.
  • Programming Foundations: Object-Oriented Design — Or equivalent experience, if not a beginner. Approximately 3 hrs.
  • Learning Relational Databases — Or equivalent experience, if not a beginner. Approximately 3 hrs.
  • CodeAcademy Ruby — Hands on instruction. Approximately 12 hrs.

Workshops

  1. CodeWars-based Hands-on Workshops.
    1. 8-kyu QuickStart. To get the most out of Ruby, you have to memorize the short-cut methods.
    2. Object-Oriented Programming
    3. Homework:
      1. Complete 100 8- or 7- kyu problems (kata). Ruby on Rails SIG has built custom collections of problems grouped by subject and ordered by difficulty/rarity. Search under the Collections tab for «DMSRuby».
      2. Build a training «hit» list of 80 of these problems; drill until you can complete them in an hour.


  2. Rails Workshops
    1. Laptop Configuration: Do not attempt on your own. We have a workshop for this process. Windows set up is particularly tricky.
      1. RubyMine Ruby on Rails >Study Groups
        • Evening Study Group, Tuesdays & Fr >Participants
        1. Dallas Makerspace Members
          1. Kirk Keeter (Instructor)
          2. Stephenie Webb (Student: working through «Ruby on Rails 5 Essential Training»)
          3. Paul Traue (Student: Working through «Understanding ECMAScript 6» book)
          4. Chrissy H (Student/CodeWars Addict: Working through «Ruby on Rails 5 Essential Training» and starting Personal Project)
          5. john a. gorman (student)
        2. Non-DMS Members ( >How To Join

          You want to enjoy life, don’t you? If you get your job done quickly and your job is fun, that’s good isn’t it? That’s the purpose of life, partly. Your life is better.

          Ruby on Rails: Making Programmers Happy

          Ruby On Rails gives you powerful pre-built features to launch your app fast

          Choosing the right technology for web development is a challenge that every business has to face — the right choice will give you a solid base for business growth. RoR’s comes with an Object Relational Mapping System for data and logic in addition to an ‘Out of the box’ routing and application management to help you get moving fast.

          Build applications in record time to fuel ideas and innovation

          Ruby on Rails lets you create complex and innovative ideas quickly:

          Enterprises can build MVPs and prototype extremely quickly to develop brand new ideas for market or create powerful internal tools to help with digital transformation.

          Ruby On Rails can help you become PSD2 compliant and is equipped with all the functions necessary to enable complete security for your application and clients.

          Using the DRY principle allows your RoR developers to separate concerns making maintenance far easier – developers adore it for its beautiful syntax and clients love it for the speed of development if offers.

          Rails makes use of the Model-View-Controller philosophy that promotes the modularity and extensibility of your web app meaning that no matter the complexity, it can quickly be extended with new features.

          Property Detective secure over 31m users on 3m data points with a robust Ruby application

          Property Detective wanted to create a big data solution for property buyers . The idea was to provide buyers with comprehensive information on current and future quality of life in areas in which people might consider living or investing.

          We were working with world class developers, specialized in the technology that suits us best, and it seems by some coincidence they were living just across the street from our office although actually they were in another country.

          Ruby on Rails delivers highly-scalable web applications through a versatile framework

          RoR is the perfect solution for many businesses including Hulu, Slideshare, GitHub, Shopify, Groupon and AirBnB. Let’s work together!

          Ruby is an interpreted, high-level, general-purpose programming language that is dynamically typed and utilizes metaprogramming to create fully functional applications and leverages the power of ‘gems’.

          Ruby on Rails is an open source web application development framework based on the Model-View-Controller architecture. It enables the fast deployment of complex projects as well as ongoing maintenance and support.

          RoR’s versatility makes it suitable for Public Websites, Single Page Applications through to complex Enterprise Core Systems – a few lines of code can achieve results that would require a lot more time and effort in other languages.

          Get tools for building an API on the backend which can communicate with the client side – it’s a great solution as it makes development far quicker and more cost-effective. It delivers source code that is clear, concise and easy to maintain.

          Launch your app with battle-tested technology that has powered the web since 2004

          Choosing the right technology can make the difference between success or failure once your product is live – Ruby On Rails has been trusted by big names including Twitter.

          Ruby on Rails consulting and development team

          Our Ruby on Rails web development specialists deliver source code which is efficient, concise, readable, maintainable and clean. Netguru can help you with test driven development for web services and web-based apps.

          We build scalable solutions and implement new functionalities within your existing web app or help with optimization.

          Our RoR app development team, together with rails consultants, build web applications in a short time to help you launch your MVP as soon as possible.

          Our methodology

          A professional external development team should be Agile – at Netguru, we strive to be completely transparent with clients – we share our style guide, our internal documentation, and code review practices, because we believe in sharing our knowledge and building trust.

          Highest standard in tools and practices

          We’ve put together a list of some of the tools we use at Netguru – they are not the only existing options, but they certainly are some of the best ones.

          1. Github: it contains our code repositories. We take advantage of all its powers and have made Git our default distributed version control system.
          2. Circle CI: it’s our default continuous integration tool. It tests all new changes to the code and, depending on results, deploys them to the staging or production environment. It also performs security checks.
          3. Jira: our default task and issue tracker, perfectly crafted for Agile needs.
          4. Rollbar: we strive to maintain exceptionally high code quality, but sometimes something unexpected happens on the server. To catch such exceptions, we use Rollbar. It tracks errors so that we can reproduce them and quickly fix them.
          5. CodeClimate: it’s our default choice for maintaining code quality. It measures our code against various metrics such as simplicity and code coverage
          6. Slack notify: it’s our go-to communication tool, so it was only natural to try and get more out of it. We have connected notifications from many other tools, and now, we know immediately when something happens on production servers (notification emails serve as a backup).
          7. Security: in our projects, we use bundler-audit and brakeman gems by default to spot all security issues as fast as possible (security checks are performed each time in CircleCI). It’s really important to keep all libraries up to date and spot all potential security pitfalls.

          The hidden value of good Ruby On Rails team

          Measuring the value of such tools in US dollars is actually an easy task – here are some calculations:

          Tool

          Description

          Monthly cost

          Team account: Starting at $25 / month which includes your first 5 users.

          At least 4 containers (x4 parallel).

          1-10 users cloud hosting.

          Bootstrap variant for small teams.

          1 user ($16.67 USD per user).

          4 users calculated, though there might be more ($8 per user).

          Heroku 2x — 1 dyno.

          Total monthly cost:

          $336

          Leverage highly experienced RoR developers

          It often doesn’t make sense to invest in your own team before you even have proof of concept for your product – working with an external software development team is the cheaper option.

          You don’t have to provide office space, equipment, and testing equipment – none of the material elements necessary for building an app. You can also forget about recruitment costs. You don’t need to worry about software and a test infrastructure. You can skip trying to gather the exact set of skills necessary for your project – a good agency will also offer Devops, backend and frontend development, UI and UX design, as well as product and graphic design.

          We are proud to be in the Top 20 Companies using Ruby On Rails in 2020

          With over 10+ years experience using Ruby On Rails and over 100+ engineers in our team we are proud to be recognized as one of the top 5 companies using RoR in 2o19 by Techreviewer.

          Мастер Йода рекомендует:  Курс «Нейронные сети»
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