fuel/fuel/core/classes/form/instance.php
public function build_field($field)
	{
		! $field instanceof Fieldset_Field && $field = $this->field($field);

		return $field->build();
	}
public function build_field($field)
	{
		! $field instanceof Fieldset_Field && $field = $this->field($field);

		return $field->build();
	}
public function build_field ( $ field ) { ! $ field instanceof Fieldset_Field && $ field = $ this -> field ( $ field ) ; return $ field -> build ( ) ; }
Build & template individual field

@param   string|Fieldset_Field  field instance or name of a field in this form's fieldset
@return  string
@depricated until v1.2
Build & template individual field