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module Dragonfly
module ActiveModelExtensions
module Validations
private
def validates_property(property_name, opts)
attrs = opts[:of] or raise ArgumentError, "you need to provide the attribute which has the property, using :of => <attribute_name>"
attrs = [attrs].flatten #(make sure it's an array)
raise ArgumentError, "you must provide either :in => [<value1>, <value2>..] or :as => <value>" unless opts[:in] || opts[:as]
allowed_values = opts[:in] || [opts[:as]]
args = attrs + [opts]
validates_each(*args) do |model, attr, attachment|
if attachment
property = attachment.send(property_name)
unless allowed_values.include?(property)
message = opts[:message] ||
"#{property_name.to_s.humanize.downcase} is incorrect. "+
"It needs to be #{Validations.expected_values_string(allowed_values)}"+
(property ? ", but was '#{property}'" : "")
message = message.call(property, model) if message.respond_to?(:call)
model.errors.add(attr, message)
end
end
end
end
def self.expected_values_string(allowed_values)
if allowed_values.is_a?(Range)
"between #{allowed_values.first} and #{allowed_values.last}"
else
allowed_values.length > 1 ? "one of '#{allowed_values.join('\', \'')}'" : "'#{allowed_values.first.to_s}'"
end
end
end
end
end
Version data entries
8 entries across 8 versions & 2 rubygems