Class: Mensa::ExportJob

Inherits:
ApplicationJob show all
Defined in:
app/jobs/mensa/export_job.rb

Instance Method Summary collapse

Instance Method Details

#perform(user_id, table_name) ⇒ Object

export_started: lambda do |user_id, table_name| end, export_complete: lambda do |user_id, table_name, attachment| end



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# File 'app/jobs/mensa/export_job.rb', line 10

def perform(user_id, table_name)
  table = Mensa.for_name(table_name)
  context = Mensa.config.callbacks[:export_started].call(user_id, table_name)

  styles = []
  default_style = { b: true, bg_color: '3B82F6', fg_color: 'FFFFFF', border: { style: :thin, color: '000000' }, sz: 8,
                    alignment: { vertical: :bottom, horizontal: :left } }

  p = Axlsx::Package.new
  p.use_shared_strings = true

  wb = p.workbook

  wrap_text = wb.styles.add_style({ format_code: "@", alignment: { horizontal: :left, vertical: :top, wrap_text: true } })
  nowrap_text = wb.styles.add_style({ format_code: "@", alignment: { horizontal: :left, vertical: :top, wrap_text: false } })
  number_format = wb.styles.add_style format_code: '#'
  datetime_format = wb.styles.add_style format_code: "dddd, d mmmm yyyy hh:mm:ss"
  date_format = wb.styles.add_style format_code: "dddd, d mmmm yyyy"

  # custom_styles = ActionTable.config.format_config.each_with_object({}) { |(key, value), hash| hash[key] = value[:xlsx_style] if value.key?(:xlsx_style) }
  custom_style = {}

  wb.add_worksheet(name: table_name.first(31)) do |sheet|
    column_widths = []
    # TODO: Separate display columns for export?
    table.display_columns.map.with_index do |column, index|
      styles[index] = sheet.styles.add_style(default_style) #.merge(column.export_style || {}))
      # width = column.export_style.delete(:width)
      # column_widths[index] = width if width
    end

    first_row = sheet.add_row(table.display_columns.map { |c| c.human_name }, style: styles, height: 28)

    first_cell = first_row.first
    last_row = first_row

    table.export_rows.each do |row|
      # next if row.reject { |column, value| value.nil? || value == '' }.blank?
      #
      # row_types = :string #row.map(&:second)
      # row_values = row.map(&:third)
      # options = row.map(&:last)
      #
      # row_styles = options.map.with_index { |option, i|
      #   type = row_types[i]
      #   value = row_values[i]
      #   export_style = option.dig(:export, :xlsx_style)
      #
      #   if export_style.present?
      #     wb.styles.add_style(export_style)
      #   elsif custom_styles[type].present?
      #     wb.styles.add_style(custom_styles[type])
      #   elsif [:integer, :float, :decimal, :number].include?(type)
      #     number_format
      #   elsif [:datetime, :time, :timestamp].include?(type)
      #     datetime_format
      #   elsif type == :date
      #     date_format
      #   elsif value.is_a?(Axlsx::RichText) || type == :text
      #     wrap_text
      #   else
      #     nowrap_text
      #   end
      # }
      values = table.display_columns.map { |column| row.value(column) }
      row_styles = table.display_columns.map { |column| nowrap_text }
      last_row = sheet.add_row(values, style: row_styles)
    end

    last_cell = last_row.last

    sheet.column_widths(*column_widths)
    sheet.auto_filter = Axlsx.cell_range([first_cell, last_cell], false)
  end

  attachment = { io: p.to_stream,
                 content_type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', filename: "#{table_name}_export_#{Time.current.strftime("%Y-%m-%d-%H:%M:%S")}.xlsx" }

  Mensa.config.callbacks[:export_completed].call(user_id, table_name, context, attachment)
end