Class: QcResultsUploadValidator

Inherits:
ActiveModel::Validator
  • Object
show all
Defined in:
app/validators/qc_results_upload_validator.rb

Overview

Failed validations return unprocessable_entity These are being validated before any QC entity is created

Instance Method Summary collapse

Instance Method Details

#validate(record) ⇒ Object 



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# File 'app/validators/qc_results_upload_validator.rb', line 6

def validate(record)
  validations = %i[validate_used_by validate_csv_data validate_rows validate_headers
                   validate_fields]

  validations.each do |validation|
    next if record.errors.present?

    send(validation, record)
  end
end

#validate_csv_data(record) ⇒ Object 



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# File 'app/validators/qc_results_upload_validator.rb', line 25

def validate_csv_data(record)
  return if record.csv_data.present?

  record.errors.add :csv_data, 'Is missing'
  nil
end

#validate_fields(record) ⇒ Object 



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# File 'app/validators/qc_results_upload_validator.rb', line 58

def validate_fields(record)
  missing_headers = (options[:required_headers] - @headers)
  return if missing_headers.empty?

  record.errors.add :csv_data,
                    "Missing required headers: #{missing_headers.join(',')}"
  nil
end

#validate_headers(record) ⇒ Object 



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# File 'app/validators/qc_results_upload_validator.rb', line 46

def validate_headers(record)
  # Remove whitespace and empty headers
  @headers = @header_row.split(',').map(&:strip).compact_blank

  # Case sensitive
  # e.g. "Genome Size" != "Genome size"
  return if @headers.count == @headers.uniq.count

  record.errors.add :csv_data, 'Contains duplicated headers'
  nil
end

#validate_rows(record) ⇒ Object 



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# File 'app/validators/qc_results_upload_validator.rb', line 32

def validate_rows(record)
  @header_row = record.csv_data.split("\n")[1]
  unless @header_row
    record.errors.add :csv_data, 'Missing header row'
    return
  end

  data_rows = record.csv_data.split("\n")[2..]
  return if data_rows.present?

  record.errors.add :csv_data, 'Missing data rows'
  nil
end

#validate_used_by(record) ⇒ Object 



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# File 'app/validators/qc_results_upload_validator.rb', line 17

def validate_used_by(record)
  qc_assay_types = QcAssayType.where(used_by: record.used_by)
  return unless qc_assay_types.empty?

  record.errors.add :used_by, 'No QcAssayTypes belong to used_by value'
  nil
end