ActiveModelを活用するための属性定義拡張系gemについて - Qiita
ActiveModelをベースにしたモデルクラスやFormオブジェクトを作ってると、attribute定義を沢山書くことになります。 その際に、セットで考えなきゃいけないのは、タイプキャスト、デフォルト値、初期化方法です。 で、この辺りを楽にしたいと考える人は大勢居るもので、これらの定義を楽にしてくれるgemがいくつかあります。 今日、いくつかチェックしたので軽くまとめておきます。 cgriego/active_attr solnic/virtus jetrockets/attrio barsoom/attr_extras active_attr, virtus active_attrとvirtusは、ActiveModel::ModelがRailsに入る前からActiveRecordっぽいインターフェースを持ったオブジェクトを定義しやすいように、モジュール自前で色々持ってます。 更に値を
Sanitize your attributes through your form object | Getaround Tech
Sanitize your attributes through your form object October 17, 2017 – Jean Anquetil – 2-minute read This article was written before Drivy was acquired by Getaround, and became Getaround EU. Some references to Drivy may therefore remain in the post At Drivy, we use the Virtus gem to build form objects in our codebase. This lets us: Keep our business logic out of the Controller and Views Deal with un
A Review Of Immutability In Ruby
Shared mutable state is the source of a lot of bugs. When two or more objects use the same piece of mutable data, they all have the ability to break each other in ways that can be hard to debug. If the shared data is immutable, however, these objects can not affect each other, and are effectively decoupled. This article is a review of the options available to Rubyists regarding immutability. We’ll
GitHub - solnic/virtus: [DISCONTINUED ] Attributes on Steroids for Plain Old Ruby Objects
DISCONTINUED Working on virtus taught me a lot about handling data in Ruby, which involves coercions, type safety and validation (amongst other things). Even though the project has been successful, and serving well for many people, I decided to build something better. As a result, dry-types, dry-struct and dry-schema were born. These projects should be considered as virtus' successors, with better
![GitHub - solnic/virtus: [DISCONTINUED ] Attributes on Steroids for Plain Old Ruby Objects](https://cdn-ak-scissors.b.st-hatena.com/image/square/378404d61a8c983e0850be56ab9ee12b4d98b46f/height=288;version=1;width=512/https%3A%2F%2Fopengraph.githubassets.com%2F28987547092dd366df83709bfb85ea36ab6629d2664188123dc1f7ec7dfddd31%2Fsolnic%2Fvirtus)
Virtusが便利 - Qiita
Virtusというgemが便利でした Railsの検索フォーム等、モデルに紐付かないパラメータを処理する時などに使用するといいと思います。 class SearchForm include Virtus.model attribute :product_name, String attribute :group_id, Integer attribute :created_at_lteq, Date attribute :created_at_gteq, Date end # form_param = { product_name: 'hoge', group_id: '111', created_at_lteq: '2015/01/01', created_at_gteq: '2015/04/01' } form = SearchForm.new(form_params) form.pr
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