Module: CollectionToCsvHelper

Defined in:
app/helpers/collection_to_csv_helper.rb

Instance Method Summary collapse

Instance Method Details

#collection_download(collection, options = {}) ⇒ Object

Raises:

  • (RuntimeError)


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# File 'app/helpers/collection_to_csv_helper.rb', line 2

def collection_download(collection,options={})
  column_names = options[:columns].presence
  associations = options[:associations].presence
  link_text = options[:link_text].presence || 'Download'
  klass =  collection.try(:first).class
  raise(RuntimeError, "#{collection} is not a ActiveRecord collection") unless klass.ancestors.include?(ActiveRecord::Base)
  collection_ids = collection.map(&:id)
  link_to link_text , collection2csv_path(ids: collection_ids,klass: klass,format: "csv",column_names: column_names,associations: associations)
end