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]
    headers = self.column_names.map{|x| x.humanize}
    columns = self.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)

  if options[:header_style]
    header_style = options[:header_style]
  elsif options[:header_style] == false
    header_style = false
  elsif options[:row_style]
    header_style = options[:row_style]
  else
    header_style = {bg_color: "AAAAAA", fg_color: "FFFFFF", alignment: { horizontal: :center }, bold: true}
  end

  row_style = options[:row_style]

  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 75

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
  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_+/, '').sub(/_id\z/, '').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 90

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 102

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]
      if options[:header_style][:bold]
        property :text, 'font-weight': :bold
        property :text, 'align': :center
      end
      if options[:header_style][:fg_color] && opts[:header_style] && opts[:header_style][:fg_color] #temporary
        property :text, 'color': "##{options[:header_style][:fg_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][:fg_color]
        property :text, 'color': "##{options[:header_style][:fg_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 if options[: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 if options[:row_style])
        end
      end
    end
  end

  return spreadsheet.bytes
end

#to_xlsx(opts = {}) ⇒ Object 



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# File 'lib/spreadsheet_architect.rb', line 150

def to_xlsx(opts={})
  options = sa_get_options(opts)
  
  package = opts[: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(options[:header_style]) if options[:header_style])
    end
    
    options[:data].each do |x|
      sheet.add_row sa_get_row_data(options[:columns], x), style: (package.workbook.styles.add_style(options[:row_style]) if options[:row_style]), types: options[:types]
    end
  end

  return package.to_stream.read
end