Class: RademadeAdmin::CsvService

Inherits:
Object
  • Object
show all
Defined in:
app/services/csv_service.rb

Instance Method Summary collapse

Constructor Details

#initialize(model_info, items) ⇒ CsvService

Returns a new instance of CsvService.



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# File 'app/services/csv_service.rb', line 7

def initialize(model_info, items)
  @model_info = model_info
  @items = items
end

Instance Method Details

#column_names ⇒ Object 



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# File 'app/services/csv_service.rb', line 21

def column_names
  @model_info.data_items.csv_fields.map(&:label)
end

#field_value(field, item) ⇒ Object 



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# File 'app/services/csv_service.rb', line 33

def field_value(field, item)
  return field.csv_preview_handler.call(item) unless field.csv_preview_handler.nil?
  item.send(field.csv_preview_accessor).to_s
end

#item_data(item) ⇒ Object 



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# File 'app/services/csv_service.rb', line 25

def item_data(item)
  data = []
  @model_info.data_items.csv_fields.each do |field|
    data << field_value(field, item)
  end
  data
end

#to_csv ⇒ Object 



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# File 'app/services/csv_service.rb', line 12

def to_csv
  ::CSV.generate(col_sep: ',', encoding: 'utf-8') do |csv|
    csv << column_names
    @items.each do |item|
      csv << item_data(item)
    end
  end
end