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module ActionView
module Helpers
module Tags # :nodoc:
class Translator # :nodoc:
attr_reader :object, :object_name, :method_and_value, :i18n_scope
def initialize(object, object_name, method_and_value, i18n_scope)
@object = object
@object_name = object_name.gsub(/\[(.*)_attributes\]\[\d+\]/, '.\1')
@method_and_value = method_and_value
@i18n_scope = i18n_scope
end
def call
placeholder ||= I18n.t("#{object_name}.#{method_and_value}", :default => i18n_default, :scope => i18n_scope).presence
placeholder || human_attribute_name
end
def i18n_default
if model
key = model.model_name.i18n_key
["#{key}.#{method_and_value}".to_sym, ""]
else
""
end
end
def human_attribute_name
if model && model.class.respond_to?(:human_attribute_name)
model.class.human_attribute_name(method_and_value)
end
end
def model
@model ||= object.to_model if object.respond_to?(:to_model)
end
end
end
end
end
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