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Every program receives some kind of input data. It can by anything - from variables, command line options, HTML web forms, configuration files to binary data. All of this needs to be checked to prevent unexpected errors from happening. Although ActiveModel::Validations is great for web apps and simple models, it isn't very flexible for other types of validations and complex dependencies.
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We, developers, find ourselves in fascinating world of bursting technology. It changes rapidly, not waiting for anyone. We have to adjust. I will show you today how to use CircleCI 2.0 as a workhorse for your end to end tests.
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In-App Purchases (IAP) is a widely used method for unlocking content in an iOS application. Though the "heavy lifting" (the payment itself) happens on the client side, it's highly probable that you will need to somehow respond to that payment on the server side, and that is what I'd like to talk about briefly in this article.
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5000. That’s the approximate number of results when you type in "programming ruby" in the Amazon.com search box. Assuming that you read 1 book per week (which is, by the way, a very good result in my opinion), you need about a hundred years to read them all. But to be a professional programmer you should not limit yourself to just reading the books related to technology you primarily work in, so imagine how much more of them are not included in this 5000.
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In the first part, we discussed the "N+1 queries" problem and how to deal with it using Rails' ActiveRecord. In this part, we will discuss some other useful ActiveRecord methods that can help us achieve some results faster or just in a more elegant way.
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Today, something about well-know problem to experienced developers. We will discuss N+1 queries problem and how to deal with it using ActiveRecord.
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Lately, I've stumbled upon a Java class that was performing the exact task I had on my mind when starting to write my gem. The class is extracting text from PDF while keeping the text structure. I was a Java developer once, but I wanted my project to still use Ruby.
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Previously, I talked about making first steps with Sinatra, how to prepare and configure everything to get the app running similarly to Rails. This time, I’m going to show you how to make the app as full-stack, so you could use it instead of Rails.
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Welcome to the five-part series of blog posts about SOLID Principles. In each part, I will describe and analyze one of these principles. In the last part, expect a summary of the entire series containing a few tips and thoughts.
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Some time ago, I had a chance to build a very small app handling HTTP requests coming from Slack. I decided to choose a lightweight framework, so I skipped Rails in favour of Sinatra. In this blog post, I would like to help you out with the first steps toward using something different than Rails, but from the perspective of a Rails developer. Why? Well, a lot of Ruby developers might be called Rails developers because the only framework they have ever used is Rails. As you can see here, there are many other web frameworks for Ruby, and I’m pretty sure that most of them sound strange to you. Let me introduce Sinatra!
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