Module: Slimmer::Headers

Defined in:
lib/slimmer/headers.rb

Constant Summary collapse

InvalidHeader = 
Class.new(RuntimeError)
HEADER_PREFIX = 
"X-Slimmer"
SLIMMER_HEADER_MAPPING = 
{
  application_name:     "Application-Name",
  beta:                 "Beta",
  campaign_notification:"Campaign-Notification",
  format:               "Format",
  need_id:              "Need-ID",
  page_owner:           "Page-Owner",
  proposition:          "Proposition",
  organisations:        "Organisations",
  remove_meta_viewport: "Remove-Meta-Viewport",
  result_count:         "Result-Count",
  section:              "Section",
  skip:                 "Skip",
  template:             "Template",
}
APPLICATION_NAME_HEADER = 
"#{HEADER_PREFIX}-#{SLIMMER_HEADER_MAPPING[:application_name]}"
ARTEFACT_HEADER = 
"#{HEADER_PREFIX}-Artefact"
BETA_HEADER = 
"#{HEADER_PREFIX}-#{SLIMMER_HEADER_MAPPING[:beta]}"
CAMPAIGN_NOTIFICATION = 
"#{HEADER_PREFIX}-#{SLIMMER_HEADER_MAPPING[:campaign_notification]}"
FORMAT_HEADER = 
"#{HEADER_PREFIX}-#{SLIMMER_HEADER_MAPPING[:format]}"
ORGANISATIONS_HEADER = 
"#{HEADER_PREFIX}-#{SLIMMER_HEADER_MAPPING[:organisations]}"
PAGE_OWNER_HEADER = 
"#{HEADER_PREFIX}-#{SLIMMER_HEADER_MAPPING[:page_owner]}"
REMOVE_META_VIEWPORT = 
"#{HEADER_PREFIX}-#{SLIMMER_HEADER_MAPPING[:remove_meta_viewport]}"
RESULT_COUNT_HEADER = 
"#{HEADER_PREFIX}-#{SLIMMER_HEADER_MAPPING[:result_count]}"
SEARCH_INDEX_HEADER = 
"#{HEADER_PREFIX}-Search-Index"
SEARCH_PATH_HEADER = 
"#{HEADER_PREFIX}-Search-Path"
SKIP_HEADER = 
"#{HEADER_PREFIX}-#{SLIMMER_HEADER_MAPPING[:skip]}"
TEMPLATE_HEADER = 
"#{HEADER_PREFIX}-#{SLIMMER_HEADER_MAPPING[:template]}"

Instance Method Summary collapse

Instance Method Details

#set_slimmer_artefact(artefact_input) {|artefact| ... } ⇒ Object

Yields:

  • (artefact) 


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# File 'lib/slimmer/headers.rb', line 45

def set_slimmer_artefact(artefact_input)
  if artefact_input.is_a?(Hash) or artefact_input.is_a?(OpenStruct)
    artefact = artefact_input.dup
  elsif artefact_input.respond_to?(:to_hash)
    artefact = artefact_input.to_hash
  end
  yield artefact if block_given?
  headers[ARTEFACT_HEADER] = artefact.to_json
end

#set_slimmer_artefact_overriding_section(artefact_input, details = {}) ⇒ Object 



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# File 'lib/slimmer/headers.rb', line 55

def set_slimmer_artefact_overriding_section(artefact_input, details = {})
  set_slimmer_artefact(artefact_input) do |artefact|
    if tag = slimmer_section_tag_for_details(details)
      artefact["tags"] = [tag] + (artefact["tags"] || [])
    end
  end
end

#set_slimmer_dummy_artefact(details = {}) ⇒ Object 



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# File 'lib/slimmer/headers.rb', line 63

def set_slimmer_dummy_artefact(details = {})
  set_slimmer_artefact({}) do |artefact|
    artefact["title"] = details[:title] if details[:title]
    if tag = slimmer_section_tag_for_details(details)
      artefact["tags"] = [tag]
    end
  end
end

#set_slimmer_headers(hash) ⇒ Object

Raises:



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# File 'lib/slimmer/headers.rb', line 37

def set_slimmer_headers(hash)
  raise InvalidHeader if (hash.keys - SLIMMER_HEADER_MAPPING.keys).any?
  SLIMMER_HEADER_MAPPING.each do |hash_key, header_suffix|
    value = hash[hash_key]
    headers["#{HEADER_PREFIX}-#{header_suffix}"] = value.to_s if value
  end
end

#slimmer_section_tag_for_details(details) ⇒ Object 



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# File 'lib/slimmer/headers.rb', line 72

def slimmer_section_tag_for_details(details)
  if details[:section_name] and details[:section_link]
    tag = {
      "title" => details[:section_name],
      "details" => {"type" => "section"},
      "content_with_tag" => {"web_url" => details[:section_link]},
    }
    if details[:parent]
      tag["parent"] = slimmer_section_tag_for_details(details[:parent])
    end
    tag
  end
end