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  • 2024/4/18 -What are conditional validations in Ruby on Rails? Conditional validations allow you to apply validation rules based on certain conditions being met. Sometimes ...

    2024/4/8 -These built-in validators are your first line of defense, ensuring simplicity and readability. Example: Validating the presence of an email and its format:

    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 ...

    2024/3/13 -Validate e-mail addreses against RFC 2822 and RFC 3696 with this Ruby on Rails plugin and gem. - validates-email-format-of/validates_email_format_of.

    2024/2/20 -Hi, Imagine having a code field with a validation rule of this: validates :code, presence: true, length: { maximum: 19 }, format: { with: /\A[A-Z0-9\-]+\z/i ...

    3日前 -※背番号(number)属性と名前(name)属性に「presence: true」を指定することで背番号と名前に「空を禁止(値を必ず入れなければいけない)」という制限を加えた。

    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...

    2024/5/10 -1. Validations. You can validate that start_time cannot be in the past with the comparison validator (added in Rails 7): validates :start_time, comparison: ...

    2024/3/9 -One of the things almost neglected by Rails is input parameters validation. Let's say we are developing delivery application for a dark store or dark kitchen.

    2024/5/8 -validate_foreign_key validates foreign key constraint and is designed to reduce the impact of adding foreign keys on high-traffic tables in PostgreSQL.

    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 ...