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  • 最終更新日:6か月以内
  • 2024/4/16 -Rails 7.1 added a validation option for enum, so it's now straightforward to validate that the value of an enum attribute is an allowed value and, ...

    2024/4/8 -The goal is to apply validations that protect the application while keeping it accessible and efficient. This approach involves using Rails' validation features ...

    2024/3/9 -The best tool we have in Rails for validating parameters is params.require(:product).permit(:name, :description) . Which is at very least limited, if not to say ...

    2024/2/20 -Hi, Imagine having a code field with a validation rule of this: validates ... Rails validation will prevent this from happening I think. I suppose ...

    2024/3/20 -Built-in validations offer a good starting point, but sometimes, you need more. Enter custom validators, valiant defenders ensuring data adheres to your unique ...

    2024/2/17 -Because I think by default Rails will set validates :post, presence: true in the above case. Ultimately this means your unexpected test case for the ...

    A.回答を一意にするUserなのかどうかを判別するフラグを新たに持たせて、それをwith_optionsメソッドで判定すればいいです。 以下を参考にしてください。 Railsで特定の条件下で走る...

    A.validates は ActiveModel::Validations モジュールで 定義されてる特異メソッドで ActiveRecord::Base などの フィールドをチェックします。 今...

    A.データベースより前に、フロントエンドの脆弱性対策が先だと思います。 まずは、無料のツールを使ってみてはいかがですか。 https://yun-craft.com/admin-blog/tomiz...

    2024/2/19 -The latest version of Rails, 7.1, introduces the ability to validate enums, enhancing data integrity and error handling in Rails models.

    2024/5/8 -The validate_foreign_key method is used to validate the foreign key constraint on a table. In other words, it checks that the value in the foreign key column of ...

    2024/3/28 -At the Rails level, a basic validation in the User model file can be written as follows. In app/models/user.rb : class User < ApplicationRecord validates :name ...

    2024/2/26 -Validate Email Addresses. Ensuring you have data that makes sense is why Rails provides validations through the Active Model library, which underpins Active ...