Class: GeoLabels::Importer::CsvData

Inherits:
Object
  • Object
show all
Defined in:
lib/geo_labels/importer/csv_data.rb

Constant Summary collapse

ROW_ATTRIBUTES = 
%w[name description state street subsection city department country url latitude longitude]

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#new_contacts ⇒ Object (readonly)

Returns the value of attribute new_contacts.



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# File 'lib/geo_labels/importer/csv_data.rb', line 7

def new_contacts
  @new_contacts
end

Instance Method Details

#import(data) ⇒ Object 



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# File 'lib/geo_labels/importer/csv_data.rb', line 10

def import(data)
  @new_contacts = []

  counter = 2 # start counting from 1 and skip the header. Works with Apple -> Numbers application
  CSV.parse(data, headers: true).each do |row|
    name = row['name']
    raise "Row #{counter} has no name" unless name.present?

    label_names = row['labels'].to_s.strip.split('|').map(&:strip).select(&:present?)
    raise "Row #{counter} (#{name}) has no labels" unless label_names.any?
    labels = label_names.map do |label_name|
      labels_h[label_name] or raise "Row #{counter} has a label: '#{label_name}' that is not yet in the system. Please add before using it in an import"
    end

    contact = Contact.new(row.to_h.slice(*ROW_ATTRIBUTES))
    contact.labels = labels
    raise "Row #{counter} creates an invalid contact. Errors: #{contact.errors.full_messages.to_sentence}" unless contact.valid?
    new_contacts.push contact
    counter += 1
  end

  Contact.delete_all
  ContactLabel.delete_all
  new_contacts.each do |contact|
    contact.save!
  end
end

#labels_h ⇒ Object 



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# File 'lib/geo_labels/importer/csv_data.rb', line 38

def labels_h
  @labels_h ||= Label.all.map{ |l| [l.name, l] }.to_h
end