react-railsを使ってReactのTutorialをやってみる - Qiita
はじめに react-railsという、ReactをAsset Pipelineに乗せて使えるようにしてくれるruby gemsがある。 この記事では、これを使用してReactの公式tutorialを進めていく。 公式のtutorialではサーバ側はすでに実装済みとして進んでいる。 今回はせっかくなのでtutorialを進める中でサーバ側も実装していくことにする。 ちなみに使ってみた個人的な感想としては、RailsのAsset Pipelineに乗せるならすごく順当かなー、という感じ。 browserifyを使いたい。bowerもオワコンと呼ばれてしまう。そんなこの時代。 Asset Pipelineは捨てたい感じがあるけど、既存のアプリケーションを徐々にReactコンポーネント化していく、みたいな時には良いと思う。 方針 きまぐれで、必要そうなところはReactの説明する。けど英訳とかは
amakan の React コンポーネント設計 - ✘╹◡╹✘
説明用の図 例として、amakan anime のトップページ https://anime.amakan.net/ の構造を挙げながら説明する。(ところで amakan anime は今月中に完成予定のサービスで実験的に公開している状態なので、まだまだ至らないところが多々あります…) 登場するコンポーネント一覧 React.Component クラスを継承したクラスをコンポーネントと呼ぶ。主に登場するコンポーネントは以下の通り。 Header Layout Router VideoPrograms Router コンポーネント 最上位のコンポーネントとして、Router コンポーネントが存在する。このコンポーネントを利用して、ページごとにどのコンポーネントを表示すべきかを分岐させる。amakan anime のトップページでは VideoPrograms コンポーネントを描画し、amaka
Getting Started with Elasticsearch on Rails
So you think you need Elasticsearch? Stop! First you should make sure that you actually need it! Many times, the problem that you're trying to solve could more easily be solved with some advanced SQL queries and maybe some new indexes. In general there are two cases where using elasticsearch makes sense. Full text searching - This one is pretty obvious, it's what elasticsearch was built for. Denor
Building a JSON API with Rails 5
Rails is great for making traditional server-rendered web applications. It has support for cookies, sessions, and other browser-specific functionality right out of the box. It's also great for building JSON APIs, but why include a whole bunch of functionality that we aren't going to use if what we want is to simply build a JSON API? That's where using Rails in --api mode comes in handy. It gives u
How to Use Rails Active Job
You're always striving to give your users a better experience when they use your website or application. One of the most important ways to achieve this is by giving them quick server response times. In this article, we'll explore how to use Rails Active Job to enable us to do this through the use of a queuing system. You can also use queues to help normalize traffic spikes or load on the server, a
Rails Disco: Get Down with Event Sourcing — SitePoint
Stay Relevant and Grow Your Career in TechPremium ResultsPublish articles on SitePointDaily curated jobsLearning PathsDiscounts to dev toolsStart Free Trial7 Day Free Trial. Cancel Anytime. Aside: I feel like you should play “You Should Be Dancing” by the Bee Gees right now. Once it’s going in the background, read on… Here are some questions for you: What did your data look like last year? Last we
The CQRS diet
The document discusses Command-Query Responsibility Segregation (CQRS), a design pattern that separates data reading (queries) from data modifying (commands) to improve application architecture, particularly in Ruby on Rails models. It highlights the importance of creating distinct models for commands and queries, detailing the potential benefits and architectural changes such a separation brings,
Building Rich Domain Models in Rails. Separating... | Victor Savkin
Domain model is an effective tool for software development. It can be used to express really complex business logic, and to verify and validate the understanding of the domain among stakeholders. Building rich domain models in Rails is hard. Primarily, because of Active Record, which doesn’t play well with the domain model approach. One way to deal with this problem is to use an ORM implementing t
The definitive guide to Arel, the SQL manager for Ruby - Jiri Pospisil
Arel is the kind of library that many of us Rails developers use on a daily basis and might not even know about it. So what's this library whose name only pops up when everything else fails all about? It's all about providing frameworks with a way of building and representing SQL queries. It's not the kind of library you would typically want to use directly (although you could as shown in a minute
ActiveRecordを速くしたいだけの人生だった - Qiita
Help us understand the problem. What is going on with this article? Rails3.2からRails4.2に上げたらActiveRecordが遅くなったので、どうやって調査して、どのように対処したかを語ってみたい。 とても長いので、ダルい人は最初と最後だけ読めばよいです。 TL;DR 環境: Ruby 2.1.5 ARオブジェクトを大量に(ざっくり750kくらい)loadするバッチ処理 3.2系での実行時間は約480sec、 4.2系では約2900sec 約6倍の性能劣化 原因: preloadで性能劣化してた CollectionProxyの生成周りで遅くなってた Rails4からARオブジェクトの1attribute毎にObject生成するので遅い GCの時間も増えた 調査方法: Githubのcommit、Issueを
Large Scale Payments Systems and Ruby on Rails
I’ve been writing code for fun and for work at both small startups and large companies for the past 30 years. Over the years I’ve become fascinated with the payments industry, and I have spent the past decade working in payments related companies. Before coming to work on Payments at Airbnb, I worked for PayPal, for a few startups and then was part of the NFC Wallet project at Google. The payments
Railsでモデルの初期化処理を書きたい場合の注意 [俺の備忘録]
Google+ボタン はてなブックマークボタン 更新日時: 2014年03月05日（水） 作成日時: 2013年06月08日（土） 前の記事 / 次の記事 after_initialize, after_findフィルター はfind系メソッドの仕様上要注意なので、 find系メソッドは捨ててwhereメソッドを使おうという話。 あとコレクションの大きさを調べる時も注意。 目次 何が危険か 危険な例 危険を回避するには コレクションの大きさを調べる時も危ない 参考ページ 1.何が危険か after_initialize オブジェクトがインスタンス化された時に実行される after_find オブジェクトが検索されて発見された時に実行される で、この時のfind系メソッドの仕様が要注意で、 Railsのfind系メソッドは、そのオブジェクトが実際に使われるかどうかに関係なく、 検索してヒット
DDD for Rails Developers. Part 1: Layered Architecture. — SitePoint
Stay Relevant and Grow Your Career in TechPremium ResultsPublish articles on SitePointDaily curated jobsLearning PathsDiscounts to dev toolsStart Free Trial7 Day Free Trial. Cancel Anytime. Key Takeaways Domain-Driven Design (DDD) and Rails often contradict each other, but the author seeks to reconcile these paradigms and find a way to use DDD without fighting Rails. DDD focuses on tackling domain
Domain Driven Design and Hexagonal Architecture with Rails
Domain Driven Design and Hexagonal Architecture with RailsAI-enhanced description The document discusses the importance of embracing complexity in software development, particularly within domain-driven design (DDD) and utilizing best practices like hexagonal architecture. It outlines code snippets related to handling product pricing, creating order requests, and implementing service objects, emph
Reverb.com Dev Blog | 5 architecture anti-patterns and solutions for...
As your Ruby/Rails codebase grows, it’s important to take note of patterns that are or are not working. As we move into 2014 here at Reverb, with a year of experience in building and maintaining a large marketplace at breakneck velocity, here are our learnings. These tips assume you are growing a sizeable Rails codebase with a domain layer living outside of Rails. If you need help getting started
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Hexagonal Rails – Tea-Driven Development