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Contents
# frozen_string_literal: true
class Serega
module SeregaValidations
#
# Attribute parameters validators
#
module Attribute
#
# Attribute `block` parameter validator
#
class CheckBlock
class << self
#
# Checks block parameter provided with attribute.
# Must have up to two arguments - object and context.
#
# @example without arguments
# attribute(:email) { CONSTANT_EMAIL }
#
# @example with one argument
# attribute(:email) { |obj| obj.confirmed_email }
#
# @example with two arguments
# attribute(:email) { |obj, context| context['is_current'] ? obj.email : nil }
#
# @param block [Proc] Block that returns serialized attribute value
#
# @raise [SeregaError] SeregaError that block has invalid arguments
#
# @return [void]
#
def call(block)
return unless block
check_block(block)
end
private
def check_block(block)
SeregaValidations::Utils::CheckExtraKeywordArg.call(block, "block")
params_count = SeregaUtils::ParamsCount.call(block, max_count: 2)
raise SeregaError, block_error if params_count > 2
end
def block_error
"Block can have maximum two parameters (object, context)"
end
end
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems