Class: Attribool::ValidatorService

Inherits:

Object

• Object
• Attribool::ValidatorService

Defined in:

lib/attribool/validator_service.rb

Overview

A simple interface to run validators, which should implement a valid? method which returns true if conditions are valid, and an error method which returns an exception class and message to be raised when validations fail.

Class Method Summary

• .call(validator_name, *args) ⇒ Object

  Run the validator.

Instance Method Summary

• #initialize(validator, *args) ⇒ ValidatorService constructor

  Construct the service and inject the validator.

• #validate ⇒ Boolean

  Raises the validator’s exception unless its conditions are met.

Constructor Details

#initialize(validator, *args) ⇒ ValidatorService

Construct the service and inject the validator.

Parameters:

• Validator (Class)
• *args (Object)

# File 'lib/attribool/validator_service.rb', line 26

def initialize(validator, *args)
  @validator = validator.new(*args)
end

Class Method Details

.call(validator_name, *args) ⇒ Object

Run the validator.

Parameters:

• validator_name (Symbol)
• *args (Object) —

  to be forwarded to validator

# File 'lib/attribool/validator_service.rb', line 16

def self.call(validator_name, *args)
  new(::Attribool::Validators.fetch(validator_name), *args).validate
end

Instance Method Details

#validate ⇒ Boolean

Raises the validator’s exception unless its conditions are met.

Returns:

• (Boolean)

Raises:

• (Exception) —

  if validation fails

# File 'lib/attribool/validator_service.rb', line 36

def validate
  @validator.valid? || raise(@validator.error)
end