generate rails 6 migration migration add_editor_version_to_grid_posts editor_version is utf8mb4_unicode_ci compatible string

def generate_migration(table_name, field_name, data_type, length)
  return  "rails generate migration add_#{field_name}_to_#{table_name} #{field_name}:#{data_type}(#{length})"
end

generate_migration('grid_posts', 'editor_version', 'string', '255')