Class: Sufia::GenericFileCSVService

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

Overview

Generates CSV from a Generic_File

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file, terms = nil, multi_value_separator = '|') ⇒ GenericFileCSVService

Returns a new instance of GenericFileCSVService.

Parameters:

  • generic_file (GenericFile) —

    file that will be examined to generate the CSVs

  • terms (Array) (defaults to: nil) —

    list of terms that will be output in CSV form defaults if nil to list below

  • multi_value_separator (String) (defaults to: '|') —

    separator for terms that have more than one value defaults to ‘|’



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# File 'app/services/sufia/generic_file_csv_service.rb', line 16

def initialize(file, terms = nil, multi_value_separator = '|')
  @generic_file = file
  @terms = terms
  @terms ||= [:id, :title, :depositor, :creator, :visibility, :resource_type, :rights, :file_format]
  @multi_value_separator = multi_value_separator
end

Instance Attribute Details

#generic_file ⇒ GenericFile (readonly)

file that will be examined to generate the CSVs

Returns:



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# File 'app/services/sufia/generic_file_csv_service.rb', line 8

def generic_file
  @generic_file
end

#multi_value_separator ⇒ String (readonly)

separator for terms that have more than one value

Returns:

  • (String) —

    the current value of multi_value_separator



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# File 'app/services/sufia/generic_file_csv_service.rb', line 8

def multi_value_separator
  @multi_value_separator
end

#terms ⇒ Array (readonly)

list of terms that will be output in CSV form

Returns:

  • (Array) —

    the current value of terms



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# File 'app/services/sufia/generic_file_csv_service.rb', line 8

def terms
  @terms
end

Instance Method Details

#csv ⇒ Object

provide csv version of the GenericFile



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# File 'app/services/sufia/generic_file_csv_service.rb', line 24

def csv
  ::CSV.generate do |csv|
    csv << terms.map do |term|
      values = generic_file.send(term)
      values = Array(values) # make sure we have an array
      values.join(multi_value_separator)
    end
  end
end

#csv_header ⇒ Object

provide csv header line for a GenericFile



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# File 'app/services/sufia/generic_file_csv_service.rb', line 35

def csv_header
  ::CSV.generate do |csv|
    csv << terms
  end
end