module RailsConnector

module ObjBody
  # Returns the body (main content) of the Obj for non-binary Objs.
  # Returns nil for binary Objs.
  def body
    if binary?
      nil
    else
      StringTagging.tag_as_html(read_attribute('body'), self)
    end
  end

  # for binary Objs body_length equals the file size
  # for non-binary Objs body_length equals the number of characters in the body (main content)
  def body_length
    if binary?
      blob = find_blob
      blob ? blob.length : 0
    else
      (body || "").length
    end
  end

  # returns an URL to retrieve the Obj's body for binary Objs.
  # returns nil for non-binary Objs.
  def body_data_url
    if binary?
      blob = find_blob
      blob.url if blob
    end
  end

  def body_data_path # :nodoc:
    # not needed/supported when using cloud connector.
    nil
  end

  # returns the content type of the Obj's body for binary Objs.
  # returns nil for non-binary Objs.
  def body_content_type
    if binary?
      blob = find_blob
      if blob
        blob.content_type
      else
        "application/octet-stream"
      end
    end
  end

  private

  def find_blob
    blob_spec = read_attribute('blob')
    Blob.find(blob_spec["id"], :context => path) if blob_spec
  end
end

end # module RailsConnector