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module ActionView
module Helpers
module Tags # :nodoc:
module Placeholderable # :nodoc:
def initialize(*)
super
if tag_value = @options[:placeholder]
placeholder = tag_value if tag_value.is_a?(String)
object_name = @object_name.gsub(/\[(.*)_attributes\]\[\d+\]/, '.\1')
method_and_value = tag_value.is_a?(TrueClass) ? @method_name : "#{@method_name}.#{tag_value}"
if object.respond_to?(:to_model)
key = object.class.model_name.i18n_key
i18n_default = ["#{key}.#{method_and_value}".to_sym, ""]
end
i18n_default ||= ""
placeholder ||= I18n.t("#{object_name}.#{method_and_value}", :default => i18n_default, :scope => "helpers.placeholder").presence
placeholder ||= if object && object.class.respond_to?(:human_attribute_name)
object.class.human_attribute_name(method_and_value)
end
placeholder ||= @method_name.humanize
@options[:placeholder] = placeholder
end
end
end
end
end
end
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