Question 1

How do I install and set up ActiveValidators in a Rails app?

Accepted Answer

Add the gem to your Gemfile with `gem 'activevalidators', '~> 5.1.0'`, then activate validators in an initializer using `ActiveValidators.activate(:email, :phone)` for modular usage, as per the README. Note the cryptographic signing steps for security.

Question 2

ActiveValidators vs writing custom validations: which is better for my project?

Accepted Answer

ActiveValidators is better for standard formats like emails or credit cards, saving time with tested code. For unique, project-specific rules, custom validations might be more flexible, as the gem's predefined set may not cover edge cases.

Question 3

How to validate an email address with ActiveValidators?

Accepted Answer

Use `validates :email, email: true` in your model, which leverages the `mail` gem for strictness. You can customize with options like `strict: true` and integrate error messages via Rails i18n, as shown in the usage examples.

Question 4

Does ActiveValidators support international phone number validation?

Accepted Answer

Yes, but it's based on predefined country masks, so you need to specify the country option, e.g., `validates :phone, phone: { country: :us }`. However, it may not handle all global formats without additional configuration.

Question 5

Is ActiveValidators still maintained and compatible with Rails 7?

Accepted Answer

The README specifies Rails 5.1+, but the copyright ends at 2018, suggesting potential maintenance lags. Check the GitHub repo for recent updates, as compatibility with newer Rails versions might require community contributions or forks.

Question 6

How to handle custom error messages with ActiveValidators?

Accepted Answer

Use Rails' i18n system: define messages in locale files under `activerecord.errors.models`, as demonstrated in the README. For example, set `message: :bad_email` in the validator and map it in your YAML file.

ActiveValidators

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