ys

class StoredProcedureService

  def self.instance
    @instance ||= StoredProcedureService.new
  end

  def execute(name, *args)
    results = []
    begin
      connection.execute("CALL #{name}(#{args.join(',')})").each(as: :hash, symbolize_keys: true) do |row|

zhengjia

=Navigating=
    visit('/projects')
    visit(post_comments_path(post))

=Clicking links and buttons=
    click_link('id-of-link')
    click_link('Link Text')
    click_button('Save')
    click('Link Text') # Click either a link or a button
    click('Button Value')