Class: ChupaText::Decomposers::Spreadsheet

Inherits:
Decomposer
  • Object
show all
Includes:
Loggable
Defined in:
lib/chupa-text/decomposers/spreadsheet.rb

Constant Summary collapse

TARGET_EXTENSIONS = 
["ods", "xls", "xlsx", "xlsm", "xml"]
TARGET_MIME_TYPES = 
[
  "application/vnd.oasis.opendocument.spreadsheet",
  "application/vnd.ms-excel",
  "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
]

Instance Method Summary collapse

Instance Method Details

#decompose(data) ⇒ Object 



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# File 'lib/chupa-text/decomposers/spreadsheet.rb', line 33

def decompose(data)
  open_book(data) do |book|
    book.sheets.each do |sheet_name|
      sheet = book.sheet(sheet_name)
      body = sheet.to_csv
      text_data = TextData.new(body, source_data: data)
      text_data["name"] = sheet_name
      text_data["digest"] = Digest::SHA1.hexdigest(body)
      text_data["size"] = body.bytesize
      text_data["first-row"] = sheet.first_row
      text_data["last-row"] = sheet.last_row
      text_data["first-column"] = sheet.first_column && sheet.first_column_as_letter
      text_data["last-column"] = sheet.last_column && sheet.last_column_as_letter
      yield text_data
    end
  end
end

#target?(data) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chupa-text/decomposers/spreadsheet.rb', line 20

def target?(data)
  TARGET_EXTENSIONS.include?(data.extension) or
    TARGET_MIME_TYPES.include?(data.mime_type)
end

#target_score(data) ⇒ Object 



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# File 'lib/chupa-text/decomposers/spreadsheet.rb', line 25

def target_score(data)
  if target?(data)
    10
  else
    nil
  end
end