Module: SpreadsheetArchitect::ClassMethods

Defined in:
lib/spreadsheet_architect.rb

Instance Method Summary collapse

Instance Method Details

#sa_get_options(options = {}) ⇒ Object 



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# File 'lib/spreadsheet_architect.rb', line 22

def sa_get_options(options={})
  if self.ancestors.include?(ActiveRecord::Base) && !self.respond_to?(:spreadsheet_columns) && !options[:spreadsheet_columns]
    the_column_names = (self.column_names - ["id","created_at","updated_at","deleted_at"])
    headers = the_column_names.map{|x| sa_str_humanize(x)}
    columns = the_column_names.map{|x| x.to_s}
  elsif options[:spreadsheet_columns] || self.respond_to?(:spreadsheet_columns)
    headers = []
    columns = []

    array = options[:spreadsheet_columns] || self.spreadsheet_columns || []
    array.each do |x|
      if x.is_a?(Array)
        headers.push x[0].to_s
        columns.push x[1].to_s
      else
        headers.push sa_str_humanize(x.to_s)
        columns.push x.to_s
      end
    end
  else
    headers = []
    columns = []
  end

  headers = (options[:headers] == false ? false : headers)

  header_style = {background_color: "AAAAAA", color: "FFFFFF", align: :center, bold: false, font_name: 'Arial', font_size: 10, italic: false, underline: false}
  
  if options[:header_style]
    header_style.merge!(options[:header_style])
  elsif options[:header_style] == false
    header_style = false
  end

  row_style = {background_color: nil, color: "000000", align: :left, bold: false, font_name: 'Arial', font_size: 10, italic: false, underline: false}
  if options[:row_style]
    row_style.merge!(options[:row_style])
  end

  sheet_name = options[:sheet_name] || self.name
  
  if options[:data]
    data = options[:data].to_a
  elsif self.ancestors.include?(ActiveRecord::Base)
    data = where(options[:where]).order(options[:order]).to_a
  else
    # object must have a to_a method 
    data = self.to_a
  end

  types = (options[:types] || []).flatten

  return {headers: headers, columns: columns, header_style: header_style, row_style: row_style, types: types, sheet_name: sheet_name, data: data}
end

#sa_get_row_data(the_columns = [], instance) ⇒ Object 



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# File 'lib/spreadsheet_architect.rb', line 77

def sa_get_row_data(the_columns=[], instance)
  row_data = []
  the_columns.each do |col|
    col.split('.').each_with_index do |x,i| 
      if i == 0
        col = instance.instance_eval(x)
      else
        col = col.instance_eval(x)
      end
    end
    row_data.push col.to_s
  end
  return row_data
end

#sa_str_humanize(str, capitalize = true) ⇒ Object 



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# File 'lib/spreadsheet_architect.rb', line 14

def sa_str_humanize(str, capitalize = true)
  str = str.sub(/\A_+/, '').gsub(/[_\.]/,' ').sub(' rescue nil','')
  if capitalize
    str = str.gsub(/(\A|\ )\w/){|x| x.upcase}
  end
  str
end

#to_csv(opts = {}) ⇒ Object 



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# File 'lib/spreadsheet_architect.rb', line 92

def to_csv(opts={})
  options = sa_get_options(opts)

  CSV.generate do |csv|
    csv << options[:headers] if options[:headers]
    
    options[:data].each do |x|
      csv << sa_get_row_data(options[:columns], x)
    end
  end
end

#to_ods(opts = {}) ⇒ Object 



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# File 'lib/spreadsheet_architect.rb', line 104

def to_ods(opts={})
  options = sa_get_options(opts)

  spreadsheet = ODF::Spreadsheet.new

  spreadsheet.office_style :header_style, family: :cell do
    if options[:header_style]
      unless opts[:header_style] && opts[:header_style][:bold] == false #uses opts, temporary
        property :text, 'font-weight': :bold
      end
      if options[:header_style][:align]
        property :text, 'align': options[:header_style][:align]
      end
      if options[:header_style][:size]
        property :text, 'font-size': options[:header_style][:size]
      end
      if options[:header_style][:color] && opts[:header_style] && opts[:header_style][:color] #temporary
        property :text, 'color': "##{options[:header_style][:color]}"
      end
    end
  end
  spreadsheet.office_style :row_style, family: :cell do
    if options[:row_style]
      if options[:row_style][:bold]
        property :text, 'font-weight': :bold
      end
      if options[:row_style][:align]
        property :text, 'align': options[:row_style][:align]
      end
      if options[:row_style][:size]
        property :text, 'font-size': options[:row_style][:size]
      end
      if opts[:row_style] && opts[:row_style][:color] #uses opts, temporary
        property :text, 'color': "##{options[:row_style][:color]}"
      end
    end
  end

  this_class = self
  spreadsheet.table options[:sheet_name] do 
    if options[:headers]
      row do
        options[:headers].each do |header|
          cell header, style: :header_style
        end
      end
    end
    options[:data].each do |x|
      row do 
        this_class.sa_get_row_data(options[:columns], x).each do |y|
          cell y, style: :row_style
        end
      end
    end
  end

  return spreadsheet.bytes
end

#to_xlsx(opts = {}) ⇒ Object 



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# File 'lib/spreadsheet_architect.rb', line 163

def to_xlsx(opts={})
  options = sa_get_options(opts)

  header_style = {}
  header_style[:fg_color] = options[:header_style].delete(:color)
  header_style[:bg_color] = options[:header_style].delete(:background_color)
  if header_style[:align]
    header_style[:alignment] = {}
    header_style[:alignment][:horizontal] = options[:header_style].delete(:align)
  end
  header_style[:b] = options[:header_style].delete(:bold)
  header_style[:sz] = options[:header_style].delete(:font_size)
  header_style[:i] = options[:header_style].delete(:italic)
  header_style[:u] = options[:header_style].delete(:underline)
  header_style.delete_if{|x| x.nil?}

  row_style = {}
  row_style[:fg_color] = options[:row_style].delete(:color)
  row_style[:bg_color] = options[:row_style].delete(:background_color)
  if row_style[:align]
    row_style[:alignment] = {}
    row_style[:alignment][:horizontal] = options[:row_style][:align]
  end
  row_style[:b] = options[:row_style].delete(:bold)
  row_style[:sz] = options[:row_style].delete(:font_size)
  row_style[:i] = options[:row_style].delete(:italic)
  row_style[:u] = options[:row_style].delete(:underline)
  row_style.delete_if{|x| x.nil?}
  
  package = Axlsx::Package.new

  return package if options[:data].empty?

  package.workbook.add_worksheet(name: options[:sheet_name]) do |sheet|
    if options[:headers]
      sheet.add_row options[:headers], style: package.workbook.styles.add_style(header_style)
    end
    
    options[:data].each do |x|
      sheet.add_row sa_get_row_data(options[:columns], x), style: package.workbook.styles.add_style(row_style), types: options[:types]
    end
  end

  return package.to_stream.read
end