class CmAdmin::Models::Export

Public Class Methods

create_workbook(records, class_name, file_path) click to toggle source
# File lib/cm_admin/models/export.rb, line 20
def create_workbook(records, class_name, file_path)
  flattened_records = records.map { |record| CmAdmin::Utils.flatten_hash(record) }
  columns = flattened_records.map{|x| x.keys}.flatten.uniq.sort
  size_arr = []
  columns.size.times { size_arr << 22 }
  xl = Axlsx::Package.new
  xl.workbook.add_worksheet do |sheet|
    sheet.add_row columns&.map(&:titleize), b: true
    flattened_records.each do |record|
      sheet.add_row(columns.map { |column| record[column] })
    end
  sheet.column_widths(*size_arr)
  end
  xl.serialize(file_path)
end
exportable_columns(klass) click to toggle source
# File lib/cm_admin/models/export.rb, line 36
def exportable_columns(klass)
  klass.available_fields[:index].map{|x| x.exportable ? x.db_column_name : ""}.reject { |c| c.empty? }
end
generate_excel(klass_name, columns = []) click to toggle source
# File lib/cm_admin/models/export.rb, line 5
def generate_excel(klass_name, columns = [])
  klass = klass_name.constantize
  records = get_records(klass, columns)
  file_path = "#{Rails.root}/tmp/#{klass}_data_#{DateTime.now.strftime("%Y-%m-%d_%H-%M-%S")}.xlsx"
  create_workbook(records, columns, file_path)
  return file_path
end
get_records(klass, columns) click to toggle source
# File lib/cm_admin/models/export.rb, line 13
def get_records(klass, columns)
  records = klass
  deserialized_columns = CmAdmin::Utils.deserialize_csv_columns(columns, :as_json_params)
  # This includes isn't recursve, a full solution should be recursive
  records.includes(deserialized_columns[:include].keys).find_each.as_json(deserialized_columns)
end