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# frozen_string_literal: true
require "active_support/core_ext/class/attribute"
module ActiveModel
# == Active \Model \Error
#
# Represents one single error
class Error
CALLBACKS_OPTIONS = [:if, :unless, :on, :allow_nil, :allow_blank, :strict]
MESSAGE_OPTIONS = [:message]
class_attribute :i18n_customize_full_message, default: false
def self.full_message(attribute, message, base_class) # :nodoc:
return message if attribute == :base
attribute = attribute.to_s
if i18n_customize_full_message && base_class.respond_to?(:i18n_scope)
attribute = attribute.remove(/\[\d\]/)
parts = attribute.split(".")
attribute_name = parts.pop
namespace = parts.join("/") unless parts.empty?
attributes_scope = "#{base_class.i18n_scope}.errors.models"
if namespace
defaults = base_class.lookup_ancestors.map do |klass|
[
:"#{attributes_scope}.#{klass.model_name.i18n_key}/#{namespace}.attributes.#{attribute_name}.format",
:"#{attributes_scope}.#{klass.model_name.i18n_key}/#{namespace}.format",
]
end
else
defaults = base_class.lookup_ancestors.map do |klass|
[
:"#{attributes_scope}.#{klass.model_name.i18n_key}.attributes.#{attribute_name}.format",
:"#{attributes_scope}.#{klass.model_name.i18n_key}.format",
]
end
end
defaults.flatten!
else
defaults = []
end
defaults << :"errors.format"
defaults << "%{attribute} %{message}"
attr_name = attribute.tr(".", "_").humanize
attr_name = base_class.human_attribute_name(attribute, default: attr_name)
I18n.t(defaults.shift,
default: defaults,
attribute: attr_name,
message: message)
end
def self.generate_message(attribute, type, base, options) # :nodoc:
type = options.delete(:message) if options[:message].is_a?(Symbol)
value = (attribute != :base ? base.send(:read_attribute_for_validation, attribute) : nil)
options = {
model: base.model_name.human,
attribute: base.class.human_attribute_name(attribute),
value: value,
object: base
}.merge!(options)
if base.class.respond_to?(:i18n_scope)
i18n_scope = base.class.i18n_scope.to_s
defaults = base.class.lookup_ancestors.flat_map do |klass|
[ :"#{i18n_scope}.errors.models.#{klass.model_name.i18n_key}.attributes.#{attribute}.#{type}",
:"#{i18n_scope}.errors.models.#{klass.model_name.i18n_key}.#{type}" ]
end
defaults << :"#{i18n_scope}.errors.messages.#{type}"
catch(:exception) do
translation = I18n.translate(defaults.first, options.merge(default: defaults.drop(1), throw: true))
return translation unless translation.nil?
end unless options[:message]
else
defaults = []
end
defaults << :"errors.attributes.#{attribute}.#{type}"
defaults << :"errors.messages.#{type}"
key = defaults.shift
defaults = options.delete(:message) if options[:message]
options[:default] = defaults
I18n.translate(key, options)
end
def initialize(base, attribute, type = :invalid, **options)
@base = base
@attribute = attribute
@raw_type = type
@type = type || :invalid
@options = options
end
def initialize_dup(other)
@attribute = @attribute.dup
@raw_type = @raw_type.dup
@type = @type.dup
@options = @options.deep_dup
end
attr_reader :base, :attribute, :type, :raw_type, :options
def message
case raw_type
when Symbol
self.class.generate_message(attribute, raw_type, @base, options.except(*CALLBACKS_OPTIONS))
else
raw_type
end
end
def detail
{ error: raw_type }.merge(options.except(*CALLBACKS_OPTIONS + MESSAGE_OPTIONS))
end
def full_message
self.class.full_message(attribute, message, @base.class)
end
# See if error matches provided +attribute+, +type+ and +options+.
def match?(attribute, type = nil, **options)
if @attribute != attribute || (type && @type != type)
return false
end
options.each do |key, value|
if @options[key] != value
return false
end
end
true
end
def strict_match?(attribute, type, **options)
return false unless match?(attribute, type)
options == @options.except(*CALLBACKS_OPTIONS + MESSAGE_OPTIONS)
end
def ==(other)
other.is_a?(self.class) && attributes_for_hash == other.attributes_for_hash
end
alias eql? ==
def hash
attributes_for_hash.hash
end
protected
def attributes_for_hash
[@base, @attribute, @raw_type, @options.except(*CALLBACKS_OPTIONS)]
end
end
end
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