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MobiDev prepared an ultimate crypto trading app development guide to help fintech enthusiasts avoid common pitfalls and create a successful crypto product.
Many of us know about includes, joins but sometimes we confuse about their usage. As I was experimenting with code refactoring in one of my projects, there I have tried these things. So I thought I can share these findings with you guys.
Latest August of this year I started to learn Rails. I was following the book Ruby on Rails Tutorial from Learn Enough To Be Dangerous website which uses Minitest to test their application. Truth is: I was not understanding a single line of code about those tests. So I decided to skip them and try to write it using RSpec because the syntax is way more similar to human language than others. But you may be wondering:
When you are building a web application, you definitely want to add an option for image uploading as well. In this tutorial, we will show you the necessary steps to enable upload multiple images/files using CarrierWave in Rails 4+ from scratch. A similar procedure can be applied for nested forms.
After completing the first built of our rails app application, I decided to take it out for a spin. Using Ruby commands that were initially tested on rails console, I built a seed file to populate the database. There were 2 reasons to seed the database. The first was to get an aesthetic feel of the app filled with data. The second was to see how would the app would scale visually with a huge amount of data.
Rails (or ruby on rails) used to the most popular web development framework just a couple of years ago, but it's not so popular now. If you are struggling to make a decision, this post may end up saving a lot of your time. But it is recommended that do research of your own about the technology and what it does best, will it be a good fit for you?
While Ruby on Rails development services are highly demanded, there are other Ruby frameworks as well. Here are the best 7 Ruby frameworks for web development.
When I was recently working in one of the client projects, I had to
communicate with external MariaDB server to store records from
React/Rails app, that means I would get ActiveRecord hash from our app
which I had to convert to pure SQL query and send it to an external
server for storing.
Before I start jumping in deep water, I would like to give some background regarding my experience. I have always love to teach myself new stuff and ways of doing things, and that is how I got into programming in general. At the beginning it was more like a hobby, I had a management position in a company and to be honest I have never really liked the way they keep track of their data.
When you are looking for a software development partner for your app idea you obviously want to make sure, that your product will be developed in the best technology possible.
David Heinemeier Hansson is the creator of Ruby on Rails, co-founder & CTO of Basecamp, best-selling author, Le Mans class-winning race car driver, family man, frequent podcast guest, and inspirational conference speaker.
When I was recently working in one of the client project, I had to communicate with external mariadb server to store records from react/rails app, that means I would get activerecord hash from our app which I had to convert to pure sql query and send it to external server for storing.
If you have worked with sql queries previously then you must know that keys and values must be separated for insert operations like
After a few years of continuous development, your rails application becomes larger and it’s good practice to do some cleanup. One of the most obvious cleanups is cleaning up unused routes.
I am a full-stack developer student currently doing the Microverse program, and I've been developing things for months until now. This article is for helping newcomers to Rails to understand Rails migrations by showing some examples and explaining them the best I can.
When I faced a search problem in Ruby the first thing that came to my head was a binary tree (yes, I’m a weirdo). After some search about it, I decided to create an open-source tree of my own so anyone can just download and use it in the future.
Once upon a time, installing Ruby on Windows came with a myriad of problems (at least my search history can attest to that), but things have come a long way.
Ruby on Rails has an awesome gem to upload, store and display images: Active Storage. It's very easy to use and it comes with a local disk-based service, that should be enough to store everything you need if you just want to practice using Rails.
In this article, we’re going to learn a little more about the MVC, the system Architecture at the core of the Rails Framework for Software Development. Hopefully, by the end of it, you’ll know why working with a system architecture can make all the difference when developing an app.
Building your first authentication system may look intimidating at first. But to be honest, it's really easy. After reading this article, you will know how easy it is to create a session based authentication in rails.
There are times when you want to know how your capybara tests are interacting with your pages, sometimes it’s not enough the log on your console to determine why they are not working as expected, that’s why you can make it display the steps on your browser in real-time. The steps to do this are really easy thanks to the Selenium Project, which is in charge of providing us the necessary infrastructure to interact with the interface of all major web browsers.
Building single page application with Ruby on Rails? Check out Hotwire. It utilizes server side rendering to send HTML over the wire. by Aleksandr Ulanov
Some things you do as a developer can work for you for years, then turn around and bite you when you were least expecting. These are the things that you wish another developer had told you early in your career so you never had to make the mistakes. This post is about one of those things and if you’re reading this, consider it me telling you.
So you are learning Rails. You are following a tutorial and have to type: rails new my_app and voilà! You have your first Rails app ready to start working on it.
This is the list of the most interesting and useful Ruby on Rails open source projects on GitHub collected on July 22. The key criterion I was following while completing my list, was the buzz around the project, its purpose, and prospects, and the date of the update to make sure that the project is still in work and in use.
One of the first things that made me uncomfortable about learning Rails was taking a look at the views. I found some weird files with some weird syntax. Their name was something like ‘name.html.erb’ and I was like what? Why does this file which seems to be an HTML file with kind of HTML syntax has a .erb extension after the .html extension?
The Village is an online city newspaper owned by the Redefine brand. It reports on important events of the day, culture, and entertainment in Moscow and St. Petersburg. Under the franchise, editorial offices also operate in other Russian cities, as well as in Belarus, Kazakhstan, and Ukraine.
I built a Customer Support System a few days ago and started to think of a way to seed my rails database with random data for testing without having to manually type in the data. This may not be the best way to do it, but it works and allows you to test your application.
So, you're asked to test your application but have no idea how to begin. Or you read about TDD, RSpec, FactoryBot, Capybara, and maybe you didn't understand what they were meant for, or maybe when you tried to run them into your project nothing worked.
Last week I finished my Ruby curriculum at Microverse. So I was ready to build my Capstone Project. Which is a solo project at the end of each of the Microverse technical curriculum sections.
Below I'll explain why I built terra_boi to deploy Clientelify, why I think it was downloaded 1,000 times in the first 10 days (despite not promoting it anywhere), and why deploying an application to production shouldn't suck.
If you're new to Ruby on Rails development sooner or later you'll have to create an Amazon AWS account. And if you already have any experience you know what I meant.
This article is all about code auditing and how it helps in refining application code. It also explains the different types of code reviews and how they are use
Whenever a new version of Rubocop comes out, there are always some new cops. If our code is not compatible with new cops, then the rubocop build fails. With every new release, we have to spend time to make our code compatible with the new cops. Well not any more!
As Ruby on Rails developers, we do not have to worry too much about the operations in the database due to the Object-Relational-Mapping or ORM. The ORM allows us to focus more on the logic of the business while it handles the operations with the database on our behalf.
RoR is quite a unique thing in itself. Imagine a nugget that is hard to find, but when you get it, the payoff is worth the effort. And if Ruby is a gem, then RoR is a cutting tool to make it a perfect framework for all sorts of web applications thanks to vast time-efficiency and code reuse factors.
Our daily life contains a set of conditionals whose job is to define us as individuals, these conditionals are introduced to us from the very first day:
If you are using Active Job for managing background jobs in Rails, you might have noticed that it logs the job arguments when the job is enqueued or run. Let's see an example of this.
Security is and will always be a very big deal, this is largely true in all spheres of life but more-so in software development. One costly mistake can leave you vulnerable to stolen API Keys and Secrets, we wouldn't want that now, would we?
In my never-ending quest to find harmony between speed of doing things (development speed) and speed of the thing (performance), I came across a project in its incubation phases which had me thinking: “This could be the one language for me.”
Rails is a great framework that enables us to avoid grungy but essential topics like database connection pooling with all the inherent complexities of multi-threading and error handling.
Ruby on Rails is an established, battle-tested technology that served as an excellent framework for software developers. But what’s the secret behind the success of Rails? One good reason is that ever since it appeared on the tech scene, it’s been part of projects launched by companies that have become some of the fastest-growing and largest startups we’ve ever seen.
This is the second part of a 2 series tutorial to setup action mailbox with postfix. In this part, we will configure postfix in production server to forward incoming emails to our rails app so action mailbox can process it.
As a back-end developer, the happy moment is to show your client that the work is now is live on the internet, everyone on the world can access the website. In this article, I will share my experience step by step to deploy your ruby on rails application on Heroku.
Debugging is as important as writing code, it can cause your program to crash or behave unexpectedly. Most of the time, debugging can be very stressful, especially when one doesn’t use the right tools to debug.
You can keep your Rails app cleaner and easier to maintain using Service Objects. Service objects help to decouple business logic from your controllers
When we start developing an app we usually do it the old fashion way: we get an idea, we elaborate on it, we make a plan to develop an app then we start coding and in the end, we test if our app is working properly.
When I was a newbie in Rails, the first couple of weeks I survived reading all the articles and understanding only like 30% of what I was doing. It was a lot of information, and one of the things that annoyed me the most was that when, after a lot of effort, I finally realized what I have to do, I have to look through all the readings and find the correct command that I need to write on my terminal (after all this time, now I can type them almost with closed eyes but at first it was incredibly tough).
Almost any app that we build has a lot of interactive options with a lot of data, to this we can also have conditions to which data should we show to what type of user, making us request data from different tables based on a unique identifier, if the queries are not handled in a proper manner this can slow down the loading, and that is because of the "N + 1" problem.
Hello everyone. Today, we will be building a todo app to showcase how to use React with Rails 6. This tutorial will be as in-depth as possible and will focus on performing CRUD operations. Our Todo app will support seeing a list of your todo, creating a today, making a todo as done, and deleting a todo. We will be leveraging react to build a reactive app and use material UI for the design.
Is ruby on rails still used? absolutely. There is a list of reasons from many startups and a direct review from developers. Take a look at this article hurry!
ver open up a Rails console to debug a problem and come away wondering how the data got so funky? Despite our best efforts the database will accept plenty of garbage data if you let it. There are tons of methods to bypass the Rails callbacks and validations while still updating your database. If you are like me you have probably used these methods in the Rails console to fix some of that funky data you found after some other code created it in the first place.
I have always been fascinated with one’s ability to create or recreate. Software development for gives me a way to translate my imaginations into useful tangible things. The feeling I get after going through challenges to figure out how to put my ideas together, is incomparable. Full-stack development is the combination of both front-end technologies and back-end technologies to create a fully functional application. In this tutorial, we are going to combine front-end technology called React and Redux with a back-end technology called Rails to create a simple sign-up system.
It is really difficult to imagine an application without a very secure authentication module, they vary from one to other, but almost always having common components, like a form to introduce a user name or email, their password, maybe some social media authentication, even biometric inputs.
The testing stage is a very important step in the software development life-cycle of any application. It helps software developers detect and fix bugs much earlier in the development process.
Among the 2,000+ deserving humans nominated across 5 categories for over 200 award titles in this year's Noonies, we discovered Phil Nash from the United states.
Often side projects or even your main project need to be done quickly and delivered to people and learn from what they've got to say and well-informed decisions instead of endlessly building what you think is the perfect solution.
It´s better to wait for a productive programmer to become available than it is to wait for the first available programmer to become productive. — Steve McConnell
YAML: literally meaning “Yaml ain’t markup language” can mess you up in the beginning. Rails generates this file for you and you have to change it for Heroku. YAML spacing has to be exact and it’s important to know a tab is not the same as four spaces.
As a student of Microverse, I’ve reached the point where Rails’ framework was introduced to me. It appeared to me with the best omens on its hands. Ruby on Rails is a starting point for many start-ups because all of them got blinded by its beauty and simplicity. I have to admit that I felt intimidated for a while. Surely I can't say we are the best friends now but things started to make sense. Ruby on Rails is designed under the MVC principles - Model View Controllers.
while developing a rails Application you might want to allow your users to upload an image Cloudinary provides an easy and free way of achieving that.... sounds good? let's get started
The most satisfying thing beyond building something is to make it available to the world. Heroku is great for beginners because it’s a free and “simple” push-to-deploy system.
Recently I learned Ruby On Rails, an amazing framework, you can easily build complex web applications with it. In this article, I want to talk about Unobtrusive JavaScript in Ruby On Rails, a tool that can help you build a more responsive web application in a simple way. With it, you can manage all your JavaScript in the server and you don’t need to pollute your HTML files, there is no need for adding events listeners and ajax requests.
Recently I’ve been refactoring the tests for a gem I maintain and I needed to test that it sets the right cookies at the right time. But the cookies in use in the gem are signed cookies and that caused a slight hiccup for me. I’d never tested the value in a signed cookie before and it wasn’t immediately obvious what to do.
Blog App](https://hackernoon.com/integrating-a-voting-system-into-your-blog-app-rz1d3u2z)
This article is about adding a voting system to your blog app, where users can vote or not vote an article. We all want to allow users to show their interest and react to an article through voting and also get the article with the highest vote. So let’s get started.
Rails 6 added an option if_not_exists to the create_table method which will not create the table if it already exists. This option is handy when we have added a table directly in production but now want to add it through a migration so that it is available in other environments as well.
Heroku is one of the top PaaS in the market thanks to many of its features that make focus on development instead of configuration and maintenance. This has bee
Our daily life contains a set of conditionals whose job is to define us as individuals, these conditionals are introduced to us from the very first day:
Steve Klabnik is a member of the Rust core team, an active open-source contributor, and author of The Rust Programming Language, Rails 4 in Action, and Designing Hypermedia APIs books. In 2012 and 2016, we invited Steve to speak at the RailsClub (now RubyRussia) conference. Since then, Steve has been working on Rust a lot, did a lot of interesting things and we realized that we should definitely interview him once again!
Vessel is a fast, open source, high-level, web crawling and scraping framework for Ruby, built on top of Ferrum — a minimal-dependency pure-Ruby driver for running headless Google Chrome instances.
Jeremy Evans is the lead developer of the Sequel database library, the Roda web toolkit, the Rodauth authentication framework, and many other Ruby libraries. He
Imagine you have a business idea and it seems very good and feasible. No rush to order full cycle development with tremendous investments and the same uncertainty. Test your business hypothesis with an MVP.
Just to give you some context, we were working on the new Diabecarp App a few days ago. I can't talk much about the new features, but I am going to extrapolate 2 interesting solutions during the process, give you why, explain a bit and, as always, put together a demo with Rails ♥️.
Whether you have made simple queries with SQL language to get records in some relational database or you have experience as a complex database administrator, when starting it might seem extremely difficult to learn the syntax to select only what you require, or which table to join with which to make the necessary consultation.
In functional programming, pure functions are at the core of this paradigm. When we speak of pure functions we mean that these functions satisfy two main conditions; the first is that they will not cause any side effects and the second is that depending on their arguments they will return the same result. When you create pure functions you should try to make them take care of one thing and only one, so your functions will be very easy to test and scale. Consider the following function:
Before I start rambling about my adventures with Rails, I want to do something I'd appreciate more people doing, and hey, be the change you want in the world, so the actual step by step is gonna be under the title THE ACTUAL TUTORIAL (in this same article, don't go D:), you can skip there if you're in a rush, but I think there's some value in the process of finding the answer, other than the answer itself, and I don't know, this is my way to communicate things. We all good? Ok, here we go.
Recently I was working on a project in RoR and I realized I wanted to show the navigation bar and footer on some pages and nothing on others. For example, Imagine a signup page with a navbar !!! Yuck, not only does it not look pretty but also, I have never seen any design where the login/logout pages have a navigation bar. Very few designs like that do exist, and in my opinion, are not the best.
Learning to be a Full-Stack web developer in Microverse – a remote software development school domiciled in California had so much taught me a lot like patience, resilience, tenacity and the curiosity to get things done the right way and at the right time. Ruby on rails web application is an application that is somewhat complicated for someone who is getting started in learning how this powerful web application works. But when you get to understand how it works and how to navigate round in building your application with it, you will be glad you did.
While working on a Rails application, we all have had to change the database column in some way. You can change the column name and the column type, as well as changing the column with the type conversion.
There are tons of articles about the number of developers in the world. But most of them either lack good methodology or simply borrow statistics from other resources.
Becoming the owner of a legacy Rails app can mean inheriting a project bogged down with tech debt, bugs, and sketchy documentation. Here's how to survive it.
There are times when one as a Ruby on Rails developer wants to implement a real-time feature, like a chat application, and after digging a bit you find a framework's feature named ActionCable, sounds new and scary, right? Fear not, I'll try to explain it as simple as possible so that at the end of this article you'll feel comfortable with the subject.
Find patterns in strings is a common problem for developers. One of the main scenarios where you could need this is on form validations, has the email the right structure? has the user first name any invalid character?. That's where regular expressions appear.
Have you wondered how to modernize your Ruby on Rails? Read the owner’s guide for upgrading legacy software and learn why Ruby is still a good choice in 2021.
Sending mail from a Rails application has been covered by hundreds or thousands of articles, however, there is not a ton of articles about receiving, parsing and using the new ActionMailbox.
A prime number is a number that can only be divided by itself and one (1). Ruby makes it convenient to access prime numbers within any range with the Prime class. This class represents a set of all prime numbers. Ruby also offers several methods for accessing the values herein. To use the prime class, ‘require’ it in your document as follows:
In this project, we will be using React.js, Ruby on Rails, React-Quill, and Cloudinary to build a forum whose content is manageable by the site's users.
Ten years ago NewRelic, DataDog, Splunk, Dynatrace and SolarWinds built tools we loved to use. They were easy to implement and solved problems quickly and efficiently. Each company was known primarily for a single, well-conceived product. NewRelic’s APM. Splunk’s log file analyzer. DataDog’s server monitor. SolarWinds’ network performance monitor. These companies were beloved by users during the 2000s.
Last week, as part of an assignment for a Ruby on Rails application, I was given the challenge to create a checkerboard styled page. The design is from Nelson Sakwa and the requirements were as follow:
Ruby on Rails has many in built methods, it's in its nature; at some point it can create some sort of stigma due to its, well known, slowness performance, but several of those methods already can help you to write a clean and faster code.
Ruby and Python are some of the most commonly used programming languages for web application development. According to the Stack Overflow’s annual survey conducted among 90,000 developers worldwide, Ruby and Python were in the Top 15 most in-demand programming languages in 2019. It’s quite something considering that there are about 700 programming languages in the world!
Hello everyone, how has it been working with the challenges of COVID-19? Today, I will be sharing how I got gritter to work with Rails 6. According to the github Readme;
Due to the inability to generate a well-defined way to authenticate rails API, I have sourced out this information in order to help me and you have a way of authenticating our rails API token. This tutorial would be based on the latest version (6.0) of Ruby on Rails.
Hello folks! In this article, we are going to unravel the mystery behind the Rails Active Record class. To be honest, I struggled a lot with Rails models as a beginner. I spent a lot of time reading the docs, read a couple of medium articles, watched some youtube videos but all in vain. I have chosen to draft a nice article that constitutes of baby steps that is suitable for aspiring Rails Engineers.
This is the first part of a 2 series tutorial to setup action mailbox with postfix. In this part, we will implement action mailbox with postfix and test in development.
“…3,813 breaches were reported through June 30, 2019,
exposing over 4.1 billion records. Compared to the midyear of 2018, the number of reported breaches was up 54% and the number of exposed records was up 52%”. - Source, RiskBasedSecurity
So you've developed an impressive rails APP that showcases a gallery of images. Its time to unveil it on the worldwide web via Heroku. Image uploads in a local development environment are currently defaulted to local psql. In production environment (Heroku), a cloud storage service stores images.
By popular choice, AWS S3 cloud service would be suitable to host your images. They offer a free plan, but to sign up it requires a credit/debit card. In my experience setting AWS up for image-handling was challenge. If one does not exercise extreme caution; API key and secret will get exposed on Github.
Ruby on Rails framework (RoR) is the dream of every developer. It does pretty much everything for you without much effort, and once you learn it and deeply understand it, you can build an entire website in a couple of hours (Of course, styling it is a different story). The hard part of rails is to understand the magic behind it.
An association is a connection between two Active Record models. It makes much easier to perform various operations on the records in your code. We will divide associations into four categories:
Evrone spoke with Mr. Matsumoto about the new features in the latest major Ruby release. Mr. Matsumoto also shared details about his approach to improving Ruby
This is a tutorial about how we can implement IBM Cloud Storage in our Ruby on Rails 6 projects. We can upload images and manage these assets with Rails. In this tutorial we are going to build a simple app. We can upload a kitty photo and vote for that photo (this tutorial only includes the part of creating a new Rails app, configuring it to save our photo on the cloud, and showing it on an image tag; the design and the part for the photo will be included in the app but is not shown in this tutorial).
“…3,813 breaches were reported through June 30, 2019,
exposing over 4.1 billion records. Compared to the midyear of 2018, the number of reported breaches was up 54% and the number of exposed records was up 52%”. - Source, RiskBasedSecurity
