@@ -93,6 +93,14 @@ is the item value and the array value is the item's label::
9393 'choices' => array('m' => 'Male', 'f' => 'Female')
9494 ));
9595
96+ ..tip ::
97+
98+ When the values to choose from are not integers or strings (but e.g. floats
99+ or booleans), you should use the `choice_list `_ option instead. With this
100+ option you are able to keep the original data format which is important
101+ to ensure that the user input is validated properly and useless database
102+ updates caused by a data type mismatch are avoided.
103+
96104choice_list
97105~~~~~~~~~~~
98106
@@ -103,6 +111,17 @@ The ``choice_list`` option must be an instance of the ``ChoiceListInterface``.
103111For more advanced cases, a custom class that implements the interface
104112can be created to supply the choices.
105113
114+ With this option you can also allow float values to be selected as data.
115+
116+ ..code-block ::php
117+
118+ use Symfony\Component\Form\Extension\Core\ChoiceList\ChoiceList;
119+
120+ // ...
121+ $builder->add('status', 'choice', array(
122+ 'choice_list' => new ChoiceList(array(1, 0.5), array('Full', 'Half')
123+ ));
124+
106125include ::/reference/forms/types/options/empty_value.rst.inc
107126
108127..include ::/reference/forms/types/options/expanded.rst.inc