Module: SpreadsheetArchitect::Helpers

Defined in:
lib/spreadsheet_architect.rb

Class Method Summary collapse

Class Method Details

.get_options(options = {}, klass) ⇒ Object 



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# File 'lib/spreadsheet_architect.rb', line 44

def self.get_options(options={}, klass)
  has_custom_columns = klass.instance_methods.include?(:spreadsheet_columns)

  if !options[:data] && defined?(ActiveRecord) && klass.ancestors.include?(ActiveRecord::Base)
    options[:data] = klass.where(options[:where]).order(options[:order]).to_a
  end

  if !options[:data] || options[:data].empty?
    raise SpreadsheetArchitect::NoDataError
  end

  if !has_custom_columns && defined?(ActiveRecord) && klass.ancestors.include?(ActiveRecord::Base)
    ignored_columns = ["id","created_at","updated_at","deleted_at"] 
    the_column_names = (klass.column_names - ignored_columns)
    headers = the_column_names.map{|x| str_humanize(x)}
    columns = the_column_names.map{|x| x.to_sym}
    types = klass.columns.keep_if{|x| !ignored_columns.include?(x.name)}.collect(&:type)
    types.map!{|type| self.get_type(nil, type)}
  elsif has_custom_columns
    headers = []
    columns = []
    types = []
    array = options[:spreadsheet_columns] || options[:data].first.spreadsheet_columns
    array.each do |x|
      if x.is_a?(Array)
        headers.push x[0].to_s
        columns.push x[1]
        types.push self.get_type(x[1], x[2])
      else
        headers.push str_humanize(x.to_s)
        columns.push x
        types.push self.get_type(x, nil)
      end
    end
  else
    raise SpreadsheetArchitect::SpreadsheetColumnsNotDefined, klass
  end

  data = []
  options[:data].each do |instance|
    if has_custom_columns && !options[:spreadsheet_columns]
      row_data = []
      instance.spreadsheet_columns.each do |x|
        if x.is_a?(Array)
          row_data.push(x[1].is_a?(Symbol) ? instance.instance_eval(x[1].to_s) : x[1])
        else
          row_data.push(x.is_a?(Symbol) ? instance.instance_eval(x.to_s) : x)
        end
      end
      data.push row_data
    else
      data.push columns.map{|col| col.is_a?(Symbol) ? instance.instance_eval(col.to_s) : col}
    end
  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] || klass.name

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

.get_type(value, type = nil) ⇒ Object 



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# File 'lib/spreadsheet_architect.rb', line 34

def self.get_type(value, type=nil)
  #return type if !type.blank?
  if value.is_a?(Numeric) || [:integer, :float, :decimal].include?(type)
    type = :float
  else
    type = :string
  end
  return type
end

.str_humanize(str, capitalize = true) ⇒ Object 



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# File 'lib/spreadsheet_architect.rb', line 26

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