Class: ImportDistribution::CsvHeaderValidator

Inherits:
ActiveModel::Validator
  • Object
show all
Defined in:
app/models/import_distribution/csv_header_validator.rb

Overview

CsvHeaderValidator

Instance Method Summary collapse

Instance Method Details

#valid_csv_headers?(csv_file) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/models/import_distribution/csv_header_validator.rb', line 25

def valid_csv_headers?(csv_file)
  headers = CSV.parse(csv_file.download)[0]
  (["friendlier_id", "reference_type", "distribution_url", "label"] - headers).empty?
rescue ArgumentError, ActiveStorage::FileNotFoundError
  false
end

#validate(record) ⇒ Object 



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# File 'app/models/import_distribution/csv_header_validator.rb', line 9

def validate(record)
  if record.csv_file.nil?
    record.errors.add(:csv_file, "Missing a required CSV header. friendlier_id, reference_type, distribution_url, and label are required.")
    return false
  end

  valid_csv_header = true
  unless valid_csv_headers?(record&.csv_file)
    valid_csv_header = false
    record.errors.add(:csv_file,
      "Missing a required CSV header. friendlier_id, reference_type, distribution_url, and label are required.")
  end

  valid_csv_header
end