Module: SpreadsheetArchitect::Helpers

Defined in:
lib/spreadsheet_architect.rb

Class Method Summary collapse

Class Method Details

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



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# File 'lib/spreadsheet_architect.rb', line 56

def self.get_cell_data(options={}, klass)
  if klass.name == 'SpreadsheetArchitect'
    if !options[:data] || options[:data].empty?
      raise SpreadsheetArchitect::NoDataError
    end

    if options[:headers] && !options[:headers].empty?
      headers = options[:headers]
    else
      headers = false
    end
    
    data = options[:data]

    types = []
    data.first.each do |x|
      types.push self.get_type(x, nil)
    end
  else
    has_custom_columns = options[:spreadsheet_columns] || klass.instance_methods.include?(:spreadsheet_columns)

    if !options[:instances] && defined?(ActiveRecord) && klass.ancestors.include?(ActiveRecord::Base)
      options[:instances] = klass.where(nil).to_a # triggers the relation call, not sure how this works but it does
    end

    if !options[:instances] || options[:instances].empty?
      raise SpreadsheetArchitect::NoInstancesError
    end

    if has_custom_columns 
      headers = []
      columns = []
      types = []
      array = options[:spreadsheet_columns] || options[:instances].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])
          types.push self.get_type(x[1], nil)
        else
          headers.push str_humanize(x.to_s)
          columns.push x
          types.push self.get_type(x, nil)
        end
      end
    elsif !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)}
    else
      raise SpreadsheetArchitect::SpreadsheetColumnsNotDefined, klass
    end

    if options[:headers].nil?
      options[:headers] = klass::SPREADSHEET_OPTIONS[:headers] if defined?(klass::SPREADSHEET_OPTIONS)
      options[:headers] = SpreadsheetArchitect::SPREADSHEET_OPTIONS[:headers] if options[:headers].nil?
    end
    if options[:headers].nil? || options[:headers] == false
      headers = false
    end

    data = []
    options[:instances].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
  
    # Fixes missing types from symbol methods
    if has_custom_columns || options[:spreadsheet_columns]
      data.first.each_with_index do |x,i|
        if types[i] == :symbol
          types[i] = self.get_type(x, nil, true)
        end
      end
    end
  end

  return options.merge(headers: headers, data: data, types: types)
end

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



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# File 'lib/spreadsheet_architect.rb', line 151

def self.get_options(options={}, klass)
  if options[:headers]
    if defined?(klass::SPREADSHEET_OPTIONS)
      header_style = SpreadsheetArchitect::SPREADSHEET_OPTIONS[:header_style].merge(klass::SPREADSHEET_OPTIONS[:header_style] || {})
    else
      header_style = SpreadsheetArchitect::SPREADSHEET_OPTIONS[:header_style]
    end
    
    if options[:header_style]
      header_style.merge!(options[:header_style])
    elsif options[:header_style] == false
      header_style = false
    end
  else
    header_style = false
  end

  if options[:row_style] == false
    row_style = false
  else
    if defined?(klass::SPREADSHEET_OPTIONS)
      row_style = SpreadsheetArchitect::SPREADSHEET_OPTIONS[:row_style].merge(klass::SPREADSHEET_OPTIONS[:row_style] || {})
    else
      row_style = SpreadsheetArchitect::SPREADSHEET_OPTIONS[:row_style]
    end

    if options[:row_style]
      row_style.merge!(options[:row_style])
    end
  end

  if defined?(klass::SPREADSHEET_OPTIONS)
    sheet_name = options[:sheet_name] || klass::SPREADSHEET_OPTIONS[:sheet_name] || SpreadsheetArchitect::SPREADSHEET_OPTIONS[:sheet_name] || klass.name
  else
    sheet_name = options[:sheet_name] || SpreadsheetArchitect::SPREADSHEET_OPTIONS[:sheet_name] || klass.name
  end

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

.get_type(value, type = nil, last_run = false) ⇒ Object 



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# File 'lib/spreadsheet_architect.rb', line 40

def self.get_type(value, type=nil, last_run=false)
  return type if !type.blank?
  if value.is_a?(Numeric)
    if [:float, :decimal].include?(type)
      type = :float
    else
      type = :integer
    end
  elsif !last_run && value.is_a?(Symbol)
    type = :symbol
  else
    type = :string
  end
  return type
end

.str_humanize(str, capitalize = true) ⇒ Object 



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# File 'lib/spreadsheet_architect.rb', line 32

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