Module: EnjuOai::OaiController::ClassMethods

Defined in:
lib/enju_oai/oai_controller.rb

Instance Method Summary collapse

Instance Method Details

#check_oai_params(params) ⇒ Object 



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# File 'lib/enju_oai/oai_controller.rb', line 9

def check_oai_params(params)
  oai = {}
  oai[:errors] = []
  case params[:verb]
  when 'Identify'
  when 'ListSets'
  when 'ListMetadataFormats'
  when 'ListIdentifiers'
    oai[:metadataPrefix] = params[:metadataPrefix]
    unless valid_metadata_format?(params[:metadataPrefix])
      oai[:errors] << "badArgument"
    end
  when 'ListRecords'
    oai[:metadataPrefix] = params[:metadataPrefix]
    unless valid_metadata_format?(params[:metadataPrefix])
      oai[:errors] << "badArgument"
    end
  when 'GetRecord'
    unless valid_metadata_format?(params[:metadataPrefix])
      oai[:errors] << "badArgument"
    else
      if params[:identifier].blank?
        oai[:errors] << "badArgument"
      end
      oai[:metadataPrefix] = params[:metadataPrefix]
      unless valid_metadata_format?(params[:metadataPrefix])
        oai[:errors] << "badArgument"
      end
    end
  else
    oai[:errors] << "badVerb"
  end
  oai
end

#request_attr(from_time, until_time, prefix = 'oai_dc') ⇒ Object 



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# File 'lib/enju_oai/oai_controller.rb', line 56

def request_attr(from_time, until_time, prefix = 'oai_dc')
  attribute = {metadataPrefix: prefix, verb: 'ListRecords'}
  attribute.merge(from: from_time.utc.iso8601) if from_time
  attribute.merge(until: until_time.utc.iso8601) if until_time
  attribute
end

#set_from_and_until(klass, from_t, until_t) ⇒ Object 



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# File 'lib/enju_oai/oai_controller.rb', line 75

def set_from_and_until(klass, from_t, until_t)
  if klass.first and klass.last
    from_t ||= klass.order(:updated_at).first.updated_at.to_s
    until_t ||= klass.order(:updated_at).last.updated_at.to_s
  else
    from_t ||= Time.zone.now.to_s
    until_t ||= Time.zone.now.to_s
  end

  times = {}
  if /^[12]\d{3}-(0?[1-9]|1[0-2])-(0?[1-9]|[12]\d|3[01])$/ =~ from_t
    times[:from] = Time.zone.parse(from_t).beginning_of_day
  else
    times[:from] = Time.zone.parse(from_t)
  end
  if /^[12]\d{3}-(0?[1-9]|1[0-2])-(0?[1-9]|[12]\d|3[01])$/ =~ until_t
    times[:until] = Time.zone.parse(until_t).end_of_day
  else
    times[:until] = Time.zone.parse(until_t)
  end
  times[:from] ||= Time.zone.parse(from_t)
  times[:until] ||= Time.zone.parse(until_t)
  times
end

#set_resumption_token(token, from_time, until_time, per_page = 200) ⇒ Object 



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# File 'lib/enju_oai/oai_controller.rb', line 63

def set_resumption_token(token, from_time, until_time, per_page = 200)
  if token
    cursor = token.split(',').reverse.first.to_i + per_page
  else
    cursor = per_page
  end
  {
    token: "f(#{from_time.utc.iso8601.to_s}),u(#{until_time.utc.iso8601.to_s}),#{cursor}",
    cursor: cursor
  }
end

#valid_metadata_format?(format) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/enju_oai/oai_controller.rb', line 44

def valid_metadata_format?(format)
  if format.present?
    if ['oai_dc', 'junii2', 'dcndl'].include?(format)
      true
    else
      false
    end
  else
    false
  end
end