Class: Nuntius::ImportSubscribersJob

Inherits:
ApplicationJob show all
Defined in:
app/jobs/nuntius/import_subscribers_job.rb

Constant Summary collapse

KNOWN_COLUMNS = 
%i[id first_name last_name email phone_number tags].freeze

Instance Method Summary collapse

Instance Method Details

#detect_column_separator(io) ⇒ Object

Detect column separator based on the first 50 bytes of the CSV, it’s naive but works for most cases



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# File 'app/jobs/nuntius/import_subscribers_job.rb', line 49

def detect_column_separator(io)
  @column_separator = io.read(128).include?(";") ? ";" : ","
  io.rewind
end

#import(list, io, user) ⇒ Object 



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# File 'app/jobs/nuntius/import_subscribers_job.rb', line 17

def import(list, io, user)
  imported = 0
  failed = 0

  detect_column_separator(io)

  CSV.parse(io, headers: true, header_converters: :symbol, converters: ->(v) { v&.strip }, col_sep: @column_separator) do |row|
    row_hash = row.to_h
    attrs = row_hash.slice(*KNOWN_COLUMNS)
    extra = row_hash.except(*KNOWN_COLUMNS).reject { |_, v| v.nil? }
    attrs[:metadata] = extra unless extra.empty?

    subscriber = if attrs[:id].present?
      s = list.subscribers.find_by(id: attrs[:id])
      s.assign_attributes(attrs)
      s
    else
      list.subscribers.new(attrs)
    end
    if subscriber.save
      imported += 1
    else
      failed += 1
    end
  end

  Signum.success(user, text: I18n.t("nuntius.admin.lists.subscribers.import.success", imported: imported, failed: failed)) if defined?(Signum)
rescue CSV::MalformedCSVError => e
  Signum.error(user, text: I18n.t("nuntius.admin.lists.subscribers.import.invalid_csv", message: e.message)) if defined?(Signum)
end

#perform(list, blob, user) ⇒ Object 



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# File 'app/jobs/nuntius/import_subscribers_job.rb', line 9

def perform(list, blob, user)
  blob.open do |io|
    import(list, io, user)
  end
ensure
  blob.purge
end