Class: Topographer::Importer::Mapper::FieldMapping

Inherits:
Object
  • Object
show all
Defined in:
lib/topographer/importer/mapper/field_mapping.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(required, input_columns, output_field, &mapping_behavior) ⇒ FieldMapping

Returns a new instance of FieldMapping.



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# File 'lib/topographer/importer/mapper/field_mapping.rb', line 6

def initialize(required, input_columns, output_field, &mapping_behavior)
  @required = required
  @input_columns = Array(input_columns)
  @output_field = output_field
  @mapping_behavior = mapping_behavior
  @invalid_keys = []
end

Instance Attribute Details

#input_columns ⇒ Object (readonly)

Returns the value of attribute input_columns.



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# File 'lib/topographer/importer/mapper/field_mapping.rb', line 4

def input_columns
  @input_columns
end

#output_field ⇒ Object (readonly)

Returns the value of attribute output_field.



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# File 'lib/topographer/importer/mapper/field_mapping.rb', line 4

def output_field
  @output_field
end

Instance Method Details

#process_input(input, result) ⇒ Object 



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# File 'lib/topographer/importer/mapper/field_mapping.rb', line 14

def process_input(input, result)
  mapping_input = input.slice(*input_columns)
  @invalid_keys = get_invalid_keys(mapping_input)
  data = (@invalid_keys.any?) ? nil : apply_mapping(mapping_input)
  if !data.nil?
    result.add_data(output_field, data)
  elsif required?
    result.add_error(output_field, invalid_input_error)
  end

rescue => exception
  result.add_error(output_field, exception.message)

end

#required? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/topographer/importer/mapper/field_mapping.rb', line 29

def required?
  @required
end