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module AbstractController
module Layouts
def self.included(base)
base.extend ClassMethods
end
module ClassMethods
def layout(layout)
unless [String, Symbol, FalseClass, NilClass].include?(layout.class)
raise ArgumentError, "Layouts must be specified as a String, Symbol, false, or nil"
end
@layout = layout || false # Converts nil to false
end
def _write_layout_method
case @layout
when String
self.class_eval %{def _layout() #{@layout.inspect} end}
when Symbol
self.class_eval %{def _layout() #{@layout} end}
when false
self.class_eval %{def _layout() end}
else
self.class_eval %{
def _layout
if view_paths.find_by_parts?("#{controller_path}", formats, "layouts")
"#{controller_path}"
else
super
end
end
}
end
end
end
def _render_template(template, options)
_action_view._render_template_with_layout(template, options[:_layout])
end
private
def _layout() end # This will be overwritten
def _layout_for_option(name)
case name
when String then _layout_for_name(name)
when true then _default_layout(true)
when false then nil
end
end
def _layout_for_name(name)
view_paths.find_by_parts(name, formats, "layouts")
end
def _default_layout(require_layout = false)
_layout_for_option(_layout)
end
end
end
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