Class: SignalValidator

Inherits:

AccountNameValidator

• Object
• ActiveModel::EachValidator
• AccountNameValidator
• SignalValidator

Defined in:

lib/signal_validator.rb

Overview

Validates Signal usernames. Signal introduced usernames in 2024; they consist of a base name and a numeric discriminator separated by a period:

.

• Base: starts with a letter, contains letters, digits, and underscores.
• Discriminator: two or more digits (leading zeros allowed, e.g. 0123).
• Combined length 3-32 characters (matching Signal's UI constraints).

The following error message keys are used to localize invalid usernames:

signal_too_short	Username is less than 3 characters.
signal_too_long	Username is over 32 characters.
signal_invalid_format	Username doesn't match <base>.<digits> with a valid base.

Options

:message	A custom message to use if the username is invalid.
:allow_nil	If true, nil values are allowed.

Examples:

validates :signal_username, signal: true

Constant Summary

FORMAT =

/\A[A-Za-z][A-Za-z0-9_]*\.\d{2,}\z/

Method Summary

Methods inherited from AccountNameValidator

add_validation, error_key_prefix, first_char, max_length, min_length, valid_chars