Module: Koi::Extensions::ObjectRendering

Defined in:
lib/koi/extensions/object_rendering.rb

Instance Method Summary collapse

Instance Method Details

#merge_prefix_into_object_path(prefix, object_path) ⇒ Object

Workaround for de-duplicating nested module paths for admin controllers See https://github.com/rails/rails/issues/50916



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# File 'lib/koi/extensions/object_rendering.rb', line 8

def merge_prefix_into_object_path(prefix, object_path)
  return object_path unless prefix.include?(?/) && object_path.include?(?/)

  prefixes         = File.dirname(prefix).split("/")
  object_namespace = object_path.split("/")

  # Drop the longest run of trailing prefix segments that also appears at
  # the head of the object namespace, merging overlapping namespaces
  # rather than repeating them.
  max_overlap = [prefixes.length, object_namespace.length].min
  overlap     = max_overlap.downto(0).find do |length|
    prefixes.last(length) == object_namespace.first(length)
  end

  (prefixes.first(prefixes.length - overlap) << object_path).join("/")
end