Class: MARC::MapRecord

Inherits:
Record
  • Object
show all
Defined in:
lib/enhanced_marc/map_record.rb

Overview

A class that represents an individual MARC record. Every record is made up of a collection of MARC::Field objects.

Instance Attribute Summary

Attributes inherited from Record

#record_type

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Record

#bibliographic_level, #composition_form, #contains_type?, #created_on, #get_dates, #inspect_fixed_fields, #is_archival?, #languages, #publication_country, #to_typed_record

Constructor Details

#initialize ⇒ MapRecord

Returns a new instance of MapRecord.



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# File 'lib/enhanced_marc/map_record.rb', line 7

def initialize
  super
  @leader[6] = 'e' if @leader[6, 1] == ' '
  @leader[7] = 'm' if @leader[7, 1] == ' '
  @record_type = 'MAP'
  @bibliographic_level = @leader.get_blvl
  extend MapType
  inspect_fixed_fields
end

Class Method Details

.new_from_record(record) ⇒ Object 



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# File 'lib/enhanced_marc/map_record.rb', line 32

def self.new_from_record(record)
  rec = MapRecord.new
  record.instance_variables.each do |var|
    rec.instance_variable_set(var, record.instance_variable_get(var))
  end
  error = rec.valid_type? ? nil : 'Incorrect type declaration in leader'
  if !error && !rec.valid_blvl?
    error = 'Incorrect bibliographic declaration in leader'
  end
  return Exception.new(error) if error
  rec
end

Instance Method Details

#valid_blvl? ⇒ Boolean Also known as: is_valid_blvl?

Returns:

  • (Boolean) 


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# File 'lib/enhanced_marc/map_record.rb', line 22

def valid_blvl?
  if @leader[7, 1] =~ /[acdim]{1}/ && @leader[6, 1] == 'f'
    true
  elsif @leader[7, 1] =~ /[abcdims]{1}/ && @leader[6, 1] == 'e'
    true
  else
    false
  end
end

#valid_type? ⇒ Boolean Also known as: is_valid_type?

Returns:

  • (Boolean) 


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# File 'lib/enhanced_marc/map_record.rb', line 17

def valid_type?
  return false unless @leader[6, 1] =~ /[ef]{1}/
  true
end